Remove github.com/pkg/errors and replace with std library version

This is possible now that we no longer support go1.12 and brings
rclone into line with standard practices in the Go world.

This also removes errors.New and errors.Errorf from lib/errors and
prefers the stdlib errors package over lib/errors.

CONTRIBUTING.md

@@ -382,7 +382,7 @@ and `go.sum` in the same commit as your other changes.
 
 If you need to update a dependency then run
 
-    GO111MODULE=on go get -u github.com/pkg/errors
+    GO111MODULE=on go get -u golang.org/x/crypto
 
 Check in a single commit as above.
 

backend/amazonclouddrive/amazonclouddrive.go

@@ -14,6 +14,7 @@ we ignore assets completely!
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -22,7 +23,6 @@ import (
 	"time"
 
 	acd "github.com/ncw/go-acd"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
 	"github.com/rclone/rclone/fs/config/configmap"
@@ -259,7 +259,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	}
 	oAuthClient, ts, err := oauthutil.NewClientWithBaseClient(ctx, name, m, acdConfig, baseClient)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to configure Amazon Drive")
+		return nil, fmt.Errorf("failed to configure Amazon Drive: %w", err)
 	}
 
 	c := acd.NewClient(oAuthClient)
@@ -292,13 +292,13 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		return f.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to get endpoints")
+		return nil, fmt.Errorf("failed to get endpoints: %w", err)
 	}
 
 	// Get rootID
 	rootInfo, err := f.getRootInfo(ctx)
 	if err != nil || rootInfo.Id == nil {
-		return nil, errors.Wrap(err, "failed to get root")
+		return nil, fmt.Errorf("failed to get root: %w", err)
 	}
 	f.trueRootID = *rootInfo.Id
 

backend/azureblob/azureblob.go

@@ -10,6 +10,7 @@ import (
 	"encoding/base64"
 	"encoding/hex"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -24,7 +25,6 @@ import (
 	"github.com/Azure/azure-pipeline-go/pipeline"
 	"github.com/Azure/azure-storage-blob-go/azblob"
 	"github.com/Azure/go-autorest/autorest/adal"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
 	"github.com/rclone/rclone/fs/config/configmap"
@@ -414,10 +414,10 @@ func (f *Fs) shouldRetry(ctx context.Context, err error) (bool, error) {
 func checkUploadChunkSize(cs fs.SizeSuffix) error {
 	const minChunkSize = fs.SizeSuffixBase
 	if cs < minChunkSize {
-		return errors.Errorf("%s is less than %s", cs, minChunkSize)
+		return fmt.Errorf("%s is less than %s", cs, minChunkSize)
 	}
 	if cs > maxChunkSize {
-		return errors.Errorf("%s is greater than %s", cs, maxChunkSize)
+		return fmt.Errorf("%s is greater than %s", cs, maxChunkSize)
 	}
 	return nil
 }
@@ -459,11 +459,11 @@ const azureStorageEndpoint = "https://storage.azure.com/"
 func newServicePrincipalTokenRefresher(ctx context.Context, credentialsData []byte) (azblob.TokenRefresher, error) {
 	var spCredentials servicePrincipalCredentials
 	if err := json.Unmarshal(credentialsData, &spCredentials); err != nil {
-		return nil, errors.Wrap(err, "error parsing credentials from JSON file")
+		return nil, fmt.Errorf("error parsing credentials from JSON file: %w", err)
 	}
 	oauthConfig, err := adal.NewOAuthConfig(azureActiveDirectoryEndpoint, spCredentials.Tenant)
 	if err != nil {
-		return nil, errors.Wrap(err, "error creating oauth config")
+		return nil, fmt.Errorf("error creating oauth config: %w", err)
 	}
 
 	// Create service principal token for Azure Storage.
@@ -473,7 +473,7 @@ func newServicePrincipalTokenRefresher(ctx context.Context, credentialsData []by
 		spCredentials.Password,
 		azureStorageEndpoint)
 	if err != nil {
-		return nil, errors.Wrap(err, "error creating service principal token")
+		return nil, fmt.Errorf("error creating service principal token: %w", err)
 	}
 
 	// Wrap token inside a refresher closure.
@@ -526,10 +526,10 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 
 	err = checkUploadChunkSize(opt.ChunkSize)
 	if err != nil {
-		return nil, errors.Wrap(err, "azure: chunk size")
+		return nil, fmt.Errorf("azure: chunk size: %w", err)
 	}
 	if opt.ListChunkSize > maxListChunkSize {
-		return nil, errors.Errorf("azure: blob list size can't be greater than %v - was %v", maxListChunkSize, opt.ListChunkSize)
+		return nil, fmt.Errorf("azure: blob list size can't be greater than %v - was %v", maxListChunkSize, opt.ListChunkSize)
 	}
 	if opt.Endpoint == "" {
 		opt.Endpoint = storageDefaultBaseURL
@@ -538,12 +538,12 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	if opt.AccessTier == "" {
 		opt.AccessTier = string(defaultAccessTier)
 	} else if !validateAccessTier(opt.AccessTier) {
-		return nil, errors.Errorf("Azure Blob: Supported access tiers are %s, %s and %s",
+		return nil, fmt.Errorf("Azure Blob: Supported access tiers are %s, %s and %s",
 			string(azblob.AccessTierHot), string(azblob.AccessTierCool), string(azblob.AccessTierArchive))
 	}
 
 	if !validatePublicAccess((opt.PublicAccess)) {
-		return nil, errors.Errorf("Azure Blob: Supported public access level are %s and %s",
+		return nil, fmt.Errorf("Azure Blob: Supported public access level are %s and %s",
 			string(azblob.PublicAccessBlob), string(azblob.PublicAccessContainer))
 	}
 
@@ -585,11 +585,11 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	case opt.UseEmulator:
 		credential, err := azblob.NewSharedKeyCredential(emulatorAccount, emulatorAccountKey)
 		if err != nil {
-			return nil, errors.Wrapf(err, "Failed to parse credentials")
+			return nil, fmt.Errorf("Failed to parse credentials: %w", err)
 		}
 		u, err = url.Parse(emulatorBlobEndpoint)
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to make azure storage url from account and endpoint")
+			return nil, fmt.Errorf("failed to make azure storage url from account and endpoint: %w", err)
 		}
 		pipeline := f.newPipeline(credential, azblob.PipelineOptions{Retry: azblob.RetryOptions{TryTimeout: maxTryTimeout}})
 		serviceURL = azblob.NewServiceURL(*u, pipeline)
@@ -631,12 +631,12 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		})
 
 		if err != nil {
-			return nil, errors.Wrapf(err, "Failed to acquire MSI token")
+			return nil, fmt.Errorf("Failed to acquire MSI token: %w", err)
 		}
 
 		u, err = url.Parse(fmt.Sprintf("https://%s.%s", opt.Account, opt.Endpoint))
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to make azure storage url from account and endpoint")
+			return nil, fmt.Errorf("failed to make azure storage url from account and endpoint: %w", err)
 		}
 		credential := azblob.NewTokenCredential(token.AccessToken, func(credential azblob.TokenCredential) time.Duration {
 			fs.Debugf(f, "Token refresher called.")
@@ -666,19 +666,19 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	case opt.Account != "" && opt.Key != "":
 		credential, err := azblob.NewSharedKeyCredential(opt.Account, opt.Key)
 		if err != nil {
-			return nil, errors.Wrapf(err, "Failed to parse credentials")
+			return nil, fmt.Errorf("Failed to parse credentials: %w", err)
 		}
 
 		u, err = url.Parse(fmt.Sprintf("https://%s.%s", opt.Account, opt.Endpoint))
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to make azure storage url from account and endpoint")
+			return nil, fmt.Errorf("failed to make azure storage url from account and endpoint: %w", err)
 		}
 		pipeline := f.newPipeline(credential, azblob.PipelineOptions{Retry: azblob.RetryOptions{TryTimeout: maxTryTimeout}})
 		serviceURL = azblob.NewServiceURL(*u, pipeline)
 	case opt.SASURL != "":
 		u, err = url.Parse(opt.SASURL)
 		if err != nil {
-			return nil, errors.Wrapf(err, "failed to parse SAS URL")
+			return nil, fmt.Errorf("failed to parse SAS URL: %w", err)
 		}
 		// use anonymous credentials in case of sas url
 		pipeline := f.newPipeline(azblob.NewAnonymousCredential(), azblob.PipelineOptions{Retry: azblob.RetryOptions{TryTimeout: maxTryTimeout}})
@@ -698,17 +698,17 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		// Create a standard URL.
 		u, err = url.Parse(fmt.Sprintf("https://%s.%s", opt.Account, opt.Endpoint))
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to make azure storage url from account and endpoint")
+			return nil, fmt.Errorf("failed to make azure storage url from account and endpoint: %w", err)
 		}
 		// Try loading service principal credentials from file.
 		loadedCreds, err := ioutil.ReadFile(env.ShellExpand(opt.ServicePrincipalFile))
 		if err != nil {
-			return nil, errors.Wrap(err, "error opening service principal credentials file")
+			return nil, fmt.Errorf("error opening service principal credentials file: %w", err)
 		}
 		// Create a token refresher from service principal credentials.
 		tokenRefresher, err := newServicePrincipalTokenRefresher(ctx, loadedCreds)
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to create a service principal token")
+			return nil, fmt.Errorf("failed to create a service principal token: %w", err)
 		}
 		options := azblob.PipelineOptions{Retry: azblob.RetryOptions{TryTimeout: maxTryTimeout}}
 		pipe := f.newPipeline(azblob.NewTokenCredential("", tokenRefresher), options)
@@ -1324,7 +1324,7 @@ func (o *Object) Hash(ctx context.Context, t hash.Type) (string, error) {
 	}
 	data, err := base64.StdEncoding.DecodeString(o.md5)
 	if err != nil {
-		return "", errors.Wrapf(err, "Failed to decode Content-MD5: %q", o.md5)
+		return "", fmt.Errorf("Failed to decode Content-MD5: %q: %w", o.md5, err)
 	}
 	return hex.EncodeToString(data), nil
 }
@@ -1510,7 +1510,7 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 	var offset int64
 	var count int64
 	if o.AccessTier() == azblob.AccessTierArchive {
-		return nil, errors.Errorf("Blob in archive tier, you need to set tier to hot or cool first")
+		return nil, fmt.Errorf("Blob in archive tier, you need to set tier to hot or cool first")
 	}
 	fs.FixRangeOption(options, o.size)
 	for _, option := range options {
@@ -1536,11 +1536,11 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 		return o.fs.shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to open for download")
+		return nil, fmt.Errorf("failed to open for download: %w", err)
 	}
 	err = o.decodeMetaDataFromDownloadResponse(downloadResponse)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to decode metadata for download")
+		return nil, fmt.Errorf("failed to decode metadata for download: %w", err)
 	}
 	in = downloadResponse.Body(azblob.RetryReaderOptions{})
 	return in, nil
@@ -1630,7 +1630,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 			fs.Debugf(o, "deleting archive tier blob before updating")
 			err = o.Remove(ctx)
 			if err != nil {
-				return errors.Wrap(err, "failed to delete archive blob before updating")
+				return fmt.Errorf("failed to delete archive blob before updating: %w", err)
 			}
 		} else {
 			return errCantUpdateArchiveTierBlobs
@@ -1723,7 +1723,7 @@ func (o *Object) AccessTier() azblob.AccessTierType {
 // SetTier performs changing object tier
 func (o *Object) SetTier(tier string) error {
 	if !validateAccessTier(tier) {
-		return errors.Errorf("Tier %s not supported by Azure Blob Storage", tier)
+		return fmt.Errorf("Tier %s not supported by Azure Blob Storage", tier)
 	}
 
 	// Check if current tier already matches with desired tier
@@ -1739,7 +1739,7 @@ func (o *Object) SetTier(tier string) error {
 	})
 
 	if err != nil {
-		return errors.Wrap(err, "Failed to set Blob Tier")
+		return fmt.Errorf("Failed to set Blob Tier: %w", err)
 	}
 
 	// Set access tier on local object also, this typically

backend/azureblob/imds.go

@@ -13,7 +13,6 @@ import (
 	"net/http"
 
 	"github.com/Azure/go-autorest/autorest/adal"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/fshttp"
 )
@@ -95,7 +94,7 @@ func GetMSIToken(ctx context.Context, identity *userMSI) (adal.Token, error) {
 	httpClient := fshttp.NewClient(ctx)
 	resp, err := httpClient.Do(req)
 	if err != nil {
-		return result, errors.Wrap(err, "MSI is not enabled on this VM")
+		return result, fmt.Errorf("MSI is not enabled on this VM: %w", err)
 	}
 	defer func() { // resp and Body should not be nil
 		_, err = io.Copy(ioutil.Discard, resp.Body)
@@ -120,7 +119,7 @@ func GetMSIToken(ctx context.Context, identity *userMSI) (adal.Token, error) {
 
 	b, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
-		return result, errors.Wrap(err, "Couldn't read IMDS response")
+		return result, fmt.Errorf("Couldn't read IMDS response: %w", err)
 	}
 	// Remove BOM, if any. azcopy does this so I'm following along.
 	b = bytes.TrimPrefix(b, []byte("\xef\xbb\xbf"))
@@ -131,7 +130,7 @@ func GetMSIToken(ctx context.Context, identity *userMSI) (adal.Token, error) {
 	// storage API call.
 	err = json.Unmarshal(b, &result)
 	if err != nil {
-		return result, errors.Wrap(err, "Couldn't unmarshal IMDS response")
+		return result, fmt.Errorf("Couldn't unmarshal IMDS response: %w", err)
 	}
 
 	return result, nil

backend/b2/b2.go

@@ -9,6 +9,7 @@ import (
 	"bytes"
 	"context"
 	"crypto/sha1"
+	"errors"
 	"fmt"
 	gohash "hash"
 	"io"
@@ -19,7 +20,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/b2/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/accounting"
@@ -366,7 +366,7 @@ func errorHandler(resp *http.Response) error {
 
 func checkUploadChunkSize(cs fs.SizeSuffix) error {
 	if cs < minChunkSize {
-		return errors.Errorf("%s is less than %s", cs, minChunkSize)
+		return fmt.Errorf("%s is less than %s", cs, minChunkSize)
 	}
 	return nil
 }
@@ -381,7 +381,7 @@ func (f *Fs) setUploadChunkSize(cs fs.SizeSuffix) (old fs.SizeSuffix, err error)
 
 func checkUploadCutoff(opt *Options, cs fs.SizeSuffix) error {
 	if cs < opt.ChunkSize {
-		return errors.Errorf("%v is less than chunk size %v", cs, opt.ChunkSize)
+		return fmt.Errorf("%v is less than chunk size %v", cs, opt.ChunkSize)
 	}
 	return nil
 }
@@ -414,11 +414,11 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	}
 	err = checkUploadCutoff(opt, opt.UploadCutoff)
 	if err != nil {
-		return nil, errors.Wrap(err, "b2: upload cutoff")
+		return nil, fmt.Errorf("b2: upload cutoff: %w", err)
 	}
 	err = checkUploadChunkSize(opt.ChunkSize)
 	if err != nil {
-		return nil, errors.Wrap(err, "b2: chunk size")
+		return nil, fmt.Errorf("b2: chunk size: %w", err)
 	}
 	if opt.Account == "" {
 		return nil, errors.New("account not found")
@@ -463,7 +463,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	}
 	err = f.authorizeAccount(ctx)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to authorize account")
+		return nil, fmt.Errorf("failed to authorize account: %w", err)
 	}
 	// If this is a key limited to a single bucket, it must exist already
 	if f.rootBucket != "" && f.info.Allowed.BucketID != "" {
@@ -472,7 +472,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 			return nil, errors.New("bucket that application key is restricted to no longer exists")
 		}
 		if allowedBucket != f.rootBucket {
-			return nil, errors.Errorf("you must use bucket %q with this application key", allowedBucket)
+			return nil, fmt.Errorf("you must use bucket %q with this application key", allowedBucket)
 		}
 		f.cache.MarkOK(f.rootBucket)
 		f.setBucketID(f.rootBucket, f.info.Allowed.BucketID)
@@ -512,7 +512,7 @@ func (f *Fs) authorizeAccount(ctx context.Context) error {
 		return f.shouldRetryNoReauth(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "failed to authenticate")
+		return fmt.Errorf("failed to authenticate: %w", err)
 	}
 	f.srv.SetRoot(f.info.APIURL+"/b2api/v1").SetHeader("Authorization", f.info.AuthorizationToken)
 	return nil
@@ -558,7 +558,7 @@ func (f *Fs) getUploadURL(ctx context.Context, bucket string) (upload *api.GetUp
 		return f.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to get upload URL")
+		return nil, fmt.Errorf("failed to get upload URL: %w", err)
 	}
 	return upload, nil
 }
@@ -1048,7 +1048,7 @@ func (f *Fs) makeBucket(ctx context.Context, bucket string) error {
 					}
 				}
 			}
-			return errors.Wrap(err, "failed to create bucket")
+			return fmt.Errorf("failed to create bucket: %w", err)
 		}
 		f.setBucketID(bucket, response.ID)
 		f.setBucketType(bucket, response.Type)
@@ -1083,7 +1083,7 @@ func (f *Fs) Rmdir(ctx context.Context, dir string) error {
 			return f.shouldRetry(ctx, resp, err)
 		})
 		if err != nil {
-			return errors.Wrap(err, "failed to delete bucket")
+			return fmt.Errorf("failed to delete bucket: %w", err)
 		}
 		f.clearBucketID(bucket)
 		f.clearBucketType(bucket)
@@ -1124,7 +1124,7 @@ func (f *Fs) hide(ctx context.Context, bucket, bucketPath string) error {
 				return nil
 			}
 		}
-		return errors.Wrapf(err, "failed to hide %q", bucketPath)
+		return fmt.Errorf("failed to hide %q: %w", bucketPath, err)
 	}
 	return nil
 }
@@ -1145,7 +1145,7 @@ func (f *Fs) deleteByID(ctx context.Context, ID, Name string) error {
 		return f.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrapf(err, "failed to delete %q", Name)
+		return fmt.Errorf("failed to delete %q: %w", Name, err)
 	}
 	return nil
 }
@@ -1364,7 +1364,7 @@ func (f *Fs) getDownloadAuthorization(ctx context.Context, bucket, remote string
 		return f.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return "", errors.Wrap(err, "failed to get download authorization")
+		return "", fmt.Errorf("failed to get download authorization: %w", err)
 	}
 	return response.AuthorizationToken, nil
 }
@@ -1669,14 +1669,14 @@ func (file *openFile) Close() (err error) {
 
 	// Check to see we read the correct number of bytes
 	if file.o.Size() != file.bytes {
-		return errors.Errorf("object corrupted on transfer - length mismatch (want %d got %d)", file.o.Size(), file.bytes)
+		return fmt.Errorf("object corrupted on transfer - length mismatch (want %d got %d)", file.o.Size(), file.bytes)
 	}
 
 	// Check the SHA1
 	receivedSHA1 := file.o.sha1
 	calculatedSHA1 := fmt.Sprintf("%x", file.hash.Sum(nil))
 	if receivedSHA1 != "" && receivedSHA1 != calculatedSHA1 {
-		return errors.Errorf("object corrupted on transfer - SHA1 mismatch (want %q got %q)", receivedSHA1, calculatedSHA1)
+		return fmt.Errorf("object corrupted on transfer - SHA1 mismatch (want %q got %q)", receivedSHA1, calculatedSHA1)
 	}
 
 	return nil
@@ -1716,7 +1716,7 @@ func (o *Object) getOrHead(ctx context.Context, method string, options []fs.Open
 		if resp != nil && (resp.StatusCode == http.StatusNotFound || resp.StatusCode == http.StatusBadRequest) {
 			return nil, nil, fs.ErrorObjectNotFound
 		}
-		return nil, nil, errors.Wrapf(err, "failed to %s for download", method)
+		return nil, nil, fmt.Errorf("failed to %s for download: %w", method, err)
 	}
 
 	// NB resp may be Open here - don't return err != nil without closing

backend/b2/upload.go

@@ -15,7 +15,6 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/b2/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/accounting"
@@ -102,7 +101,7 @@ func (f *Fs) newLargeUpload(ctx context.Context, o *Object, in io.Reader, src fs
 			parts++
 		}
 		if parts > maxParts {
-			return nil, errors.Errorf("%q too big (%d bytes) makes too many parts %d > %d - increase --b2-chunk-size", remote, size, parts, maxParts)
+			return nil, fmt.Errorf("%q too big (%d bytes) makes too many parts %d > %d - increase --b2-chunk-size", remote, size, parts, maxParts)
 		}
 		sha1SliceSize = parts
 	}
@@ -185,7 +184,7 @@ func (up *largeUpload) getUploadURL(ctx context.Context) (upload *api.GetUploadP
 			return up.f.shouldRetry(ctx, resp, err)
 		})
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to get upload URL")
+			return nil, fmt.Errorf("failed to get upload URL: %w", err)
 		}
 	} else {
 		upload, up.uploads = up.uploads[0], up.uploads[1:]
@@ -406,7 +405,7 @@ func (up *largeUpload) Stream(ctx context.Context, initialUploadBlock []byte) (e
 			up.size += int64(n)
 			if part > maxParts {
 				up.f.putBuf(buf, false)
-				return errors.Errorf("%q too big (%d bytes so far) makes too many parts %d > %d - increase --b2-chunk-size", up.o, up.size, up.parts, maxParts)
+				return fmt.Errorf("%q too big (%d bytes so far) makes too many parts %d > %d - increase --b2-chunk-size", up.o, up.size, up.parts, maxParts)
 			}
 
 			part := part // for the closure

backend/box/box.go

@@ -14,6 +14,7 @@ import (
 	"crypto/rsa"
 	"encoding/json"
 	"encoding/pem"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -26,13 +27,6 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/rclone/rclone/lib/encoder"
-	"github.com/rclone/rclone/lib/env"
-	"github.com/rclone/rclone/lib/jwtutil"
-
-	"github.com/youmark/pkcs8"
-
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/box/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
@@ -43,9 +37,13 @@ import (
 	"github.com/rclone/rclone/fs/fshttp"
 	"github.com/rclone/rclone/fs/hash"
 	"github.com/rclone/rclone/lib/dircache"
+	"github.com/rclone/rclone/lib/encoder"
+	"github.com/rclone/rclone/lib/env"
+	"github.com/rclone/rclone/lib/jwtutil"
 	"github.com/rclone/rclone/lib/oauthutil"
 	"github.com/rclone/rclone/lib/pacer"
 	"github.com/rclone/rclone/lib/rest"
+	"github.com/youmark/pkcs8"
 	"golang.org/x/oauth2"
 	"golang.org/x/oauth2/jws"
 )
@@ -93,7 +91,7 @@ func init() {
 			if ok && boxSubTypeOk && jsonFile != "" && boxSubType != "" {
 				err = refreshJWTToken(ctx, jsonFile, boxSubType, name, m)
 				if err != nil {
-					return nil, errors.Wrap(err, "failed to configure token with jwt authentication")
+					return nil, fmt.Errorf("failed to configure token with jwt authentication: %w", err)
 				}
 				// Else, if not using an access token, use oauth2
 			} else if boxAccessToken == "" || !boxAccessTokenOk {
@@ -167,15 +165,15 @@ func refreshJWTToken(ctx context.Context, jsonFile string, boxSubType string, na
 	jsonFile = env.ShellExpand(jsonFile)
 	boxConfig, err := getBoxConfig(jsonFile)
 	if err != nil {
-		return errors.Wrap(err, "get box config")
+		return fmt.Errorf("get box config: %w", err)
 	}
 	privateKey, err := getDecryptedPrivateKey(boxConfig)
 	if err != nil {
-		return errors.Wrap(err, "get decrypted private key")
+		return fmt.Errorf("get decrypted private key: %w", err)
 	}
 	claims, err := getClaims(boxConfig, boxSubType)
 	if err != nil {
-		return errors.Wrap(err, "get claims")
+		return fmt.Errorf("get claims: %w", err)
 	}
 	signingHeaders := getSigningHeaders(boxConfig)
 	queryParams := getQueryParams(boxConfig)
@@ -187,11 +185,11 @@ func refreshJWTToken(ctx context.Context, jsonFile string, boxSubType string, na
 func getBoxConfig(configFile string) (boxConfig *api.ConfigJSON, err error) {
 	file, err := ioutil.ReadFile(configFile)
 	if err != nil {
-		return nil, errors.Wrap(err, "box: failed to read Box config")
+		return nil, fmt.Errorf("box: failed to read Box config: %w", err)
 	}
 	err = json.Unmarshal(file, &boxConfig)
 	if err != nil {
-		return nil, errors.Wrap(err, "box: failed to parse Box config")
+		return nil, fmt.Errorf("box: failed to parse Box config: %w", err)
 	}
 	return boxConfig, nil
 }
@@ -199,7 +197,7 @@ func getBoxConfig(configFile string) (boxConfig *api.ConfigJSON, err error) {
 func getClaims(boxConfig *api.ConfigJSON, boxSubType string) (claims *jws.ClaimSet, err error) {
 	val, err := jwtutil.RandomHex(20)
 	if err != nil {
-		return nil, errors.Wrap(err, "box: failed to generate random string for jti")
+		return nil, fmt.Errorf("box: failed to generate random string for jti: %w", err)
 	}
 
 	claims = &jws.ClaimSet{
@@ -240,12 +238,12 @@ func getDecryptedPrivateKey(boxConfig *api.ConfigJSON) (key *rsa.PrivateKey, err
 
 	block, rest := pem.Decode([]byte(boxConfig.BoxAppSettings.AppAuth.PrivateKey))
 	if len(rest) > 0 {
-		return nil, errors.Wrap(err, "box: extra data included in private key")
+		return nil, fmt.Errorf("box: extra data included in private key: %w", err)
 	}
 
 	rsaKey, err := pkcs8.ParsePKCS8PrivateKey(block.Bytes, []byte(boxConfig.BoxAppSettings.AppAuth.Passphrase))
 	if err != nil {
-		return nil, errors.Wrap(err, "box: failed to decrypt private key")
+		return nil, fmt.Errorf("box: failed to decrypt private key: %w", err)
 	}
 
 	return rsaKey.(*rsa.PrivateKey), nil
@@ -403,7 +401,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	}
 
 	if opt.UploadCutoff < minUploadCutoff {
-		return nil, errors.Errorf("box: upload cutoff (%v) must be greater than equal to %v", opt.UploadCutoff, fs.SizeSuffix(minUploadCutoff))
+		return nil, fmt.Errorf("box: upload cutoff (%v) must be greater than equal to %v", opt.UploadCutoff, fs.SizeSuffix(minUploadCutoff))
 	}
 
 	root = parsePath(root)
@@ -414,7 +412,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	if opt.AccessToken == "" {
 		client, ts, err = oauthutil.NewClient(ctx, name, m, oauthConfig)
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to configure Box")
+			return nil, fmt.Errorf("failed to configure Box: %w", err)
 		}
 	}
 
@@ -613,7 +611,7 @@ OUTER:
 			return shouldRetry(ctx, resp, err)
 		})
 		if err != nil {
-			return found, errors.Wrap(err, "couldn't list files")
+			return found, fmt.Errorf("couldn't list files: %w", err)
 		}
 		for i := range result.Entries {
 			item := &result.Entries[i]
@@ -740,14 +738,14 @@ func (f *Fs) preUploadCheck(ctx context.Context, leaf, directoryID string, size
 			var conflict api.PreUploadCheckConflict
 			err = json.Unmarshal(apiErr.ContextInfo, &conflict)
 			if err != nil {
-				return "", errors.Wrap(err, "pre-upload check: JSON decode failed")
+				return "", fmt.Errorf("pre-upload check: JSON decode failed: %w", err)
 			}
 			if conflict.Conflicts.Type != api.ItemTypeFile {
-				return "", errors.Wrap(err, "pre-upload check: can't overwrite non file with file")
+				return "", fmt.Errorf("pre-upload check: can't overwrite non file with file: %w", err)
 			}
 			return conflict.Conflicts.ID, nil
 		}
-		return "", errors.Wrap(err, "pre-upload check")
+		return "", fmt.Errorf("pre-upload check: %w", err)
 	}
 	return "", nil
 }
@@ -856,7 +854,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "rmdir failed")
+		return fmt.Errorf("rmdir failed: %w", err)
 	}
 	f.dirCache.FlushDir(dir)
 	if err != nil {
@@ -900,7 +898,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	srcPath := srcObj.fs.rootSlash() + srcObj.remote
 	dstPath := f.rootSlash() + remote
 	if strings.ToLower(srcPath) == strings.ToLower(dstPath) {
-		return nil, errors.Errorf("can't copy %q -> %q as are same name when lowercase", srcPath, dstPath)
+		return nil, fmt.Errorf("can't copy %q -> %q as are same name when lowercase", srcPath, dstPath)
 	}
 
 	// Create temporary object
@@ -984,7 +982,7 @@ func (f *Fs) About(ctx context.Context) (usage *fs.Usage, err error) {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to read user info")
+		return nil, fmt.Errorf("failed to read user info: %w", err)
 	}
 	// FIXME max upload size would be useful to use in Update
 	usage = &fs.Usage{
@@ -1145,7 +1143,7 @@ func (f *Fs) CleanUp(ctx context.Context) (err error) {
 	})
 	wg.Wait()
 	if deleteErrors != 0 {
-		return errors.Errorf("failed to delete %d trash items", deleteErrors)
+		return fmt.Errorf("failed to delete %d trash items", deleteErrors)
 	}
 	return err
 }
@@ -1205,7 +1203,7 @@ func (o *Object) setMetaData(info *api.Item) (err error) {
 		return fs.ErrorIsDir
 	}
 	if info.Type != api.ItemTypeFile {
-		return errors.Wrapf(fs.ErrorNotAFile, "%q is %q", o.remote, info.Type)
+		return fmt.Errorf("%q is %q: %w", o.remote, info.Type, fs.ErrorNotAFile)
 	}
 	o.hasMetaData = true
 	o.size = int64(info.Size)
@@ -1341,7 +1339,7 @@ func (o *Object) upload(ctx context.Context, in io.Reader, leaf, directoryID str
 		return err
 	}
 	if result.TotalCount != 1 || len(result.Entries) != 1 {
-		return errors.Errorf("failed to upload %v - not sure why", o)
+		return fmt.Errorf("failed to upload %v - not sure why", o)
 	}
 	return o.setMetaData(&result.Entries[0])
 }

backend/box/upload.go

@@ -8,6 +8,7 @@ import (
 	"crypto/sha1"
 	"encoding/base64"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -15,7 +16,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/box/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/accounting"
@@ -140,7 +140,7 @@ outer:
 					}
 				}
 			default:
-				return nil, errors.Errorf("unknown HTTP status return %q (%d)", resp.Status, resp.StatusCode)
+				return nil, fmt.Errorf("unknown HTTP status return %q (%d)", resp.Status, resp.StatusCode)
 			}
 		}
 		fs.Debugf(o, "commit multipart upload failed %d/%d - trying again in %d seconds (%s)", tries+1, maxTries, delay, why)
@@ -151,7 +151,7 @@ outer:
 	}
 	err = json.Unmarshal(body, &result)
 	if err != nil {
-		return nil, errors.Wrapf(err, "couldn't decode commit response: %q", body)
+		return nil, fmt.Errorf("couldn't decode commit response: %q: %w", body, err)
 	}
 	return result, nil
 }
@@ -177,7 +177,7 @@ func (o *Object) uploadMultipart(ctx context.Context, in io.Reader, leaf, direct
 	// Create upload session
 	session, err := o.createUploadSession(ctx, leaf, directoryID, size)
 	if err != nil {
-		return errors.Wrap(err, "multipart upload create session failed")
+		return fmt.Errorf("multipart upload create session failed: %w", err)
 	}
 	chunkSize := session.PartSize
 	fs.Debugf(o, "Multipart upload session started for %d parts of size %v", session.TotalParts, fs.SizeSuffix(chunkSize))
@@ -222,7 +222,7 @@ outer:
 		// Read the chunk
 		_, err = io.ReadFull(in, buf)
 		if err != nil {
-			err = errors.Wrap(err, "multipart upload failed to read source")
+			err = fmt.Errorf("multipart upload failed to read source: %w", err)
 			break outer
 		}
 
@@ -238,7 +238,7 @@ outer:
 			fs.Debugf(o, "Uploading part %d/%d offset %v/%v part size %v", part+1, session.TotalParts, fs.SizeSuffix(position), fs.SizeSuffix(size), fs.SizeSuffix(chunkSize))
 			partResponse, err := o.uploadPart(ctx, session.ID, position, size, buf, wrap, options...)
 			if err != nil {
-				err = errors.Wrap(err, "multipart upload failed to upload part")
+				err = fmt.Errorf("multipart upload failed to upload part: %w", err)
 				select {
 				case errs <- err:
 				default:
@@ -266,11 +266,11 @@ outer:
 	// Finalise the upload session
 	result, err := o.commitUpload(ctx, session.ID, parts, modTime, hash.Sum(nil))
 	if err != nil {
-		return errors.Wrap(err, "multipart upload failed to finalize")
+		return fmt.Errorf("multipart upload failed to finalize: %w", err)
 	}
 
 	if result.TotalCount != 1 || len(result.Entries) != 1 {
-		return errors.Errorf("multipart upload failed %v - not sure why", o)
+		return fmt.Errorf("multipart upload failed %v - not sure why", o)
 	}
 	return o.setMetaData(&result.Entries[0])
 }

backend/cache/cache.go

@@ -5,6 +5,7 @@ package cache
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"math"
@@ -19,7 +20,6 @@ import (
 	"syscall"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/crypt"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/cache"
@@ -356,7 +356,7 @@ func NewFs(ctx context.Context, name, rootPath string, m configmap.Mapper) (fs.F
 		return nil, err
 	}
 	if opt.ChunkTotalSize < opt.ChunkSize*fs.SizeSuffix(opt.TotalWorkers) {
-		return nil, errors.Errorf("don't set cache-chunk-total-size(%v) less than cache-chunk-size(%v) * cache-workers(%v)",
+		return nil, fmt.Errorf("don't set cache-chunk-total-size(%v) less than cache-chunk-size(%v) * cache-workers(%v)",
 			opt.ChunkTotalSize, opt.ChunkSize, opt.TotalWorkers)
 	}
 
@@ -366,13 +366,13 @@ func NewFs(ctx context.Context, name, rootPath string, m configmap.Mapper) (fs.F
 
 	rpath, err := parseRootPath(rootPath)
 	if err != nil {
-		return nil, errors.Wrapf(err, "failed to clean root path %q", rootPath)
+		return nil, fmt.Errorf("failed to clean root path %q: %w", rootPath, err)
 	}
 
 	remotePath := fspath.JoinRootPath(opt.Remote, rootPath)
 	wrappedFs, wrapErr := cache.Get(ctx, remotePath)
 	if wrapErr != nil && wrapErr != fs.ErrorIsFile {
-		return nil, errors.Wrapf(wrapErr, "failed to make remote %q to wrap", remotePath)
+		return nil, fmt.Errorf("failed to make remote %q to wrap: %w", remotePath, wrapErr)
 	}
 	var fsErr error
 	fs.Debugf(name, "wrapped %v:%v at root %v", wrappedFs.Name(), wrappedFs.Root(), rpath)
@@ -401,7 +401,7 @@ func NewFs(ctx context.Context, name, rootPath string, m configmap.Mapper) (fs.F
 		if opt.PlexToken != "" {
 			f.plexConnector, err = newPlexConnectorWithToken(f, opt.PlexURL, opt.PlexToken, opt.PlexInsecure)
 			if err != nil {
-				return nil, errors.Wrapf(err, "failed to connect to the Plex API %v", opt.PlexURL)
+				return nil, fmt.Errorf("failed to connect to the Plex API %v: %w", opt.PlexURL, err)
 			}
 		} else {
 			if opt.PlexPassword != "" && opt.PlexUsername != "" {
@@ -413,7 +413,7 @@ func NewFs(ctx context.Context, name, rootPath string, m configmap.Mapper) (fs.F
 					m.Set("plex_token", token)
 				})
 				if err != nil {
-					return nil, errors.Wrapf(err, "failed to connect to the Plex API %v", opt.PlexURL)
+					return nil, fmt.Errorf("failed to connect to the Plex API %v: %w", opt.PlexURL, err)
 				}
 			}
 		}
@@ -434,11 +434,11 @@ func NewFs(ctx context.Context, name, rootPath string, m configmap.Mapper) (fs.F
 	}
 	err = os.MkdirAll(dbPath, os.ModePerm)
 	if err != nil {
-		return nil, errors.Wrapf(err, "failed to create cache directory %v", dbPath)
+		return nil, fmt.Errorf("failed to create cache directory %v: %w", dbPath, err)
 	}
 	err = os.MkdirAll(chunkPath, os.ModePerm)
 	if err != nil {
-		return nil, errors.Wrapf(err, "failed to create cache directory %v", chunkPath)
+		return nil, fmt.Errorf("failed to create cache directory %v: %w", chunkPath, err)
 	}
 
 	dbPath = filepath.Join(dbPath, name+".db")
@@ -450,7 +450,7 @@ func NewFs(ctx context.Context, name, rootPath string, m configmap.Mapper) (fs.F
 		DbWaitTime: time.Duration(opt.DbWaitTime),
 	})
 	if err != nil {
-		return nil, errors.Wrapf(err, "failed to start cache db")
+		return nil, fmt.Errorf("failed to start cache db: %w", err)
 	}
 	// Trap SIGINT and SIGTERM to close the DB handle gracefully
 	c := make(chan os.Signal, 1)
@@ -484,12 +484,12 @@ func NewFs(ctx context.Context, name, rootPath string, m configmap.Mapper) (fs.F
 	if f.opt.TempWritePath != "" {
 		err = os.MkdirAll(f.opt.TempWritePath, os.ModePerm)
 		if err != nil {
-			return nil, errors.Wrapf(err, "failed to create cache directory %v", f.opt.TempWritePath)
+			return nil, fmt.Errorf("failed to create cache directory %v: %w", f.opt.TempWritePath, err)
 		}
 		f.opt.TempWritePath = filepath.ToSlash(f.opt.TempWritePath)
 		f.tempFs, err = cache.Get(ctx, f.opt.TempWritePath)
 		if err != nil {
-			return nil, errors.Wrapf(err, "failed to create temp fs: %v", err)
+			return nil, fmt.Errorf("failed to create temp fs: %v: %w", err, err)
 		}
 		fs.Infof(name, "Upload Temp Rest Time: %v", f.opt.TempWaitTime)
 		fs.Infof(name, "Upload Temp FS: %v", f.opt.TempWritePath)
@@ -606,7 +606,7 @@ func (f *Fs) httpStats(ctx context.Context, in rc.Params) (out rc.Params, err er
 	out = make(rc.Params)
 	m, err := f.Stats()
 	if err != nil {
-		return out, errors.Errorf("error while getting cache stats")
+		return out, fmt.Errorf("error while getting cache stats")
 	}
 	out["status"] = "ok"
 	out["stats"] = m
@@ -633,7 +633,7 @@ func (f *Fs) httpExpireRemote(ctx context.Context, in rc.Params) (out rc.Params,
 	out = make(rc.Params)
 	remoteInt, ok := in["remote"]
 	if !ok {
-		return out, errors.Errorf("remote is needed")
+		return out, fmt.Errorf("remote is needed")
 	}
 	remote := remoteInt.(string)
 	withData := false
@@ -644,7 +644,7 @@ func (f *Fs) httpExpireRemote(ctx context.Context, in rc.Params) (out rc.Params,
 
 	remote = f.unwrapRemote(remote)
 	if !f.cache.HasEntry(path.Join(f.Root(), remote)) {
-		return out, errors.Errorf("%s doesn't exist in cache", remote)
+		return out, fmt.Errorf("%s doesn't exist in cache", remote)
 	}
 
 	co := NewObject(f, remote)
@@ -653,7 +653,7 @@ func (f *Fs) httpExpireRemote(ctx context.Context, in rc.Params) (out rc.Params,
 		cd := NewDirectory(f, remote)
 		err := f.cache.ExpireDir(cd)
 		if err != nil {
-			return out, errors.WithMessage(err, "error expiring directory")
+			return out, fmt.Errorf("error expiring directory: %w", err)
 		}
 		// notify vfs too
 		f.notifyChangeUpstream(cd.Remote(), fs.EntryDirectory)
@@ -664,7 +664,7 @@ func (f *Fs) httpExpireRemote(ctx context.Context, in rc.Params) (out rc.Params,
 	// expire the entry
 	err = f.cache.ExpireObject(co, withData)
 	if err != nil {
-		return out, errors.WithMessage(err, "error expiring file")
+		return out, fmt.Errorf("error expiring file: %w", err)
 	}
 	// notify vfs too
 	f.notifyChangeUpstream(co.Remote(), fs.EntryObject)
@@ -685,24 +685,24 @@ func (f *Fs) rcFetch(ctx context.Context, in rc.Params) (rc.Params, error) {
 			case 1:
 				start, err = strconv.ParseInt(ints[0], 10, 64)
 				if err != nil {
-					return nil, errors.Errorf("invalid range: %q", part)
+					return nil, fmt.Errorf("invalid range: %q", part)
 				}
 				end = start + 1
 			case 2:
 				if ints[0] != "" {
 					start, err = strconv.ParseInt(ints[0], 10, 64)
 					if err != nil {
-						return nil, errors.Errorf("invalid range: %q", part)
+						return nil, fmt.Errorf("invalid range: %q", part)
 					}
 				}
 				if ints[1] != "" {
 					end, err = strconv.ParseInt(ints[1], 10, 64)
 					if err != nil {
-						return nil, errors.Errorf("invalid range: %q", part)
+						return nil, fmt.Errorf("invalid range: %q", part)
 					}
 				}
 			default:
-				return nil, errors.Errorf("invalid range: %q", part)
+				return nil, fmt.Errorf("invalid range: %q", part)
 			}
 			crs = append(crs, chunkRange{start: start, end: end})
 		}
@@ -757,18 +757,18 @@ func (f *Fs) rcFetch(ctx context.Context, in rc.Params) (rc.Params, error) {
 	delete(in, "chunks")
 	crs, err := parseChunks(s)
 	if err != nil {
-		return nil, errors.Wrap(err, "invalid chunks parameter")
+		return nil, fmt.Errorf("invalid chunks parameter: %w", err)
 	}
 	var files [][2]string
 	for k, v := range in {
 		if !strings.HasPrefix(k, "file") {
-			return nil, errors.Errorf("invalid parameter %s=%s", k, v)
+			return nil, fmt.Errorf("invalid parameter %s=%s", k, v)
 		}
 		switch v := v.(type) {
 		case string:
 			files = append(files, [2]string{v, f.unwrapRemote(v)})
 		default:
-			return nil, errors.Errorf("invalid parameter %s=%s", k, v)
+			return nil, fmt.Errorf("invalid parameter %s=%s", k, v)
 		}
 	}
 	type fileStatus struct {
@@ -1124,7 +1124,7 @@ func (f *Fs) ListR(ctx context.Context, dir string, callback fs.ListRCallback) (
 				case fs.Directory:
 					_ = f.cache.AddDir(DirectoryFromOriginal(ctx, f, o))
 				default:
-					return errors.Errorf("Unknown object type %T", entry)
+					return fmt.Errorf("Unknown object type %T", entry)
 				}
 			}
 

backend/cache/cache_internal_test.go

@@ -7,6 +7,7 @@ import (
 	"bytes"
 	"context"
 	"encoding/base64"
+	"errors"
 	goflag "flag"
 	"fmt"
 	"io"
@@ -22,7 +23,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/cache"
 	"github.com/rclone/rclone/backend/crypt"
 	_ "github.com/rclone/rclone/backend/drive"
@@ -446,7 +446,7 @@ func TestInternalWrappedFsChangeNotSeen(t *testing.T) {
 				return err
 			}
 			if coSize != expectedSize {
-				return errors.Errorf("%v <> %v", coSize, expectedSize)
+				return fmt.Errorf("%v <> %v", coSize, expectedSize)
 			}
 			return nil
 		}, 12, time.Second*10)
@@ -502,7 +502,7 @@ func TestInternalMoveWithNotify(t *testing.T) {
 		}
 		if len(li) != 2 {
 			log.Printf("not expected listing /test: %v", li)
-			return errors.Errorf("not expected listing /test: %v", li)
+			return fmt.Errorf("not expected listing /test: %v", li)
 		}
 
 		li, err = runInstance.list(t, rootFs, "test/one")
@@ -512,7 +512,7 @@ func TestInternalMoveWithNotify(t *testing.T) {
 		}
 		if len(li) != 0 {
 			log.Printf("not expected listing /test/one: %v", li)
-			return errors.Errorf("not expected listing /test/one: %v", li)
+			return fmt.Errorf("not expected listing /test/one: %v", li)
 		}
 
 		li, err = runInstance.list(t, rootFs, "test/second")
@@ -522,21 +522,21 @@ func TestInternalMoveWithNotify(t *testing.T) {
 		}
 		if len(li) != 1 {
 			log.Printf("not expected listing /test/second: %v", li)
-			return errors.Errorf("not expected listing /test/second: %v", li)
+			return fmt.Errorf("not expected listing /test/second: %v", li)
 		}
 		if fi, ok := li[0].(os.FileInfo); ok {
 			if fi.Name() != "data.bin" {
 				log.Printf("not expected name: %v", fi.Name())
-				return errors.Errorf("not expected name: %v", fi.Name())
+				return fmt.Errorf("not expected name: %v", fi.Name())
 			}
 		} else if di, ok := li[0].(fs.DirEntry); ok {
 			if di.Remote() != "test/second/data.bin" {
 				log.Printf("not expected remote: %v", di.Remote())
-				return errors.Errorf("not expected remote: %v", di.Remote())
+				return fmt.Errorf("not expected remote: %v", di.Remote())
 			}
 		} else {
 			log.Printf("unexpected listing: %v", li)
-			return errors.Errorf("unexpected listing: %v", li)
+			return fmt.Errorf("unexpected listing: %v", li)
 		}
 
 		log.Printf("complete listing: %v", li)
@@ -591,17 +591,17 @@ func TestInternalNotifyCreatesEmptyParts(t *testing.T) {
 		found = boltDb.HasEntry(path.Join(cfs.Root(), runInstance.encryptRemoteIfNeeded(t, "test")))
 		if !found {
 			log.Printf("not found /test")
-			return errors.Errorf("not found /test")
+			return fmt.Errorf("not found /test")
 		}
 		found = boltDb.HasEntry(path.Join(cfs.Root(), runInstance.encryptRemoteIfNeeded(t, "test"), runInstance.encryptRemoteIfNeeded(t, "one")))
 		if !found {
 			log.Printf("not found /test/one")
-			return errors.Errorf("not found /test/one")
+			return fmt.Errorf("not found /test/one")
 		}
 		found = boltDb.HasEntry(path.Join(cfs.Root(), runInstance.encryptRemoteIfNeeded(t, "test"), runInstance.encryptRemoteIfNeeded(t, "one"), runInstance.encryptRemoteIfNeeded(t, "test2")))
 		if !found {
 			log.Printf("not found /test/one/test2")
-			return errors.Errorf("not found /test/one/test2")
+			return fmt.Errorf("not found /test/one/test2")
 		}
 		li, err := runInstance.list(t, rootFs, "test/one")
 		if err != nil {
@@ -610,21 +610,21 @@ func TestInternalNotifyCreatesEmptyParts(t *testing.T) {
 		}
 		if len(li) != 1 {
 			log.Printf("not expected listing /test/one: %v", li)
-			return errors.Errorf("not expected listing /test/one: %v", li)
+			return fmt.Errorf("not expected listing /test/one: %v", li)
 		}
 		if fi, ok := li[0].(os.FileInfo); ok {
 			if fi.Name() != "test2" {
 				log.Printf("not expected name: %v", fi.Name())
-				return errors.Errorf("not expected name: %v", fi.Name())
+				return fmt.Errorf("not expected name: %v", fi.Name())
 			}
 		} else if di, ok := li[0].(fs.DirEntry); ok {
 			if di.Remote() != "test/one/test2" {
 				log.Printf("not expected remote: %v", di.Remote())
-				return errors.Errorf("not expected remote: %v", di.Remote())
+				return fmt.Errorf("not expected remote: %v", di.Remote())
 			}
 		} else {
 			log.Printf("unexpected listing: %v", li)
-			return errors.Errorf("unexpected listing: %v", li)
+			return fmt.Errorf("unexpected listing: %v", li)
 		}
 		log.Printf("complete listing /test/one/test2")
 		return nil
@@ -1062,7 +1062,7 @@ func (r *run) readDataFromRemote(t *testing.T, f fs.Fs, remote string, offset, e
 	checkSample = r.readDataFromObj(t, co, offset, end, noLengthCheck)
 
 	if !noLengthCheck && size != int64(len(checkSample)) {
-		return checkSample, errors.Errorf("read size doesn't match expected: %v <> %v", len(checkSample), size)
+		return checkSample, fmt.Errorf("read size doesn't match expected: %v <> %v", len(checkSample), size)
 	}
 	return checkSample, nil
 }
@@ -1257,7 +1257,7 @@ func (r *run) listenForBackgroundUpload(t *testing.T, f fs.Fs, remote string) ch
 			case state = <-buCh:
 				// continue
 			case <-time.After(maxDuration):
-				waitCh <- errors.Errorf("Timed out waiting for background upload: %v", remote)
+				waitCh <- fmt.Errorf("Timed out waiting for background upload: %v", remote)
 				return
 			}
 			checkRemote := state.Remote
@@ -1274,7 +1274,7 @@ func (r *run) listenForBackgroundUpload(t *testing.T, f fs.Fs, remote string) ch
 				return
 			}
 		}
-		waitCh <- errors.Errorf("Too many attempts to wait for the background upload: %v", remote)
+		waitCh <- fmt.Errorf("Too many attempts to wait for the background upload: %v", remote)
 	}()
 	return waitCh
 }

backend/cache/handle.go

@@ -5,6 +5,7 @@ package cache
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"path"
@@ -13,7 +14,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/operations"
 )
@@ -243,7 +243,7 @@ func (r *Handle) getChunk(chunkStart int64) ([]byte, error) {
 			return nil, io.ErrUnexpectedEOF
 		}
 
-		return nil, errors.Errorf("chunk not found %v", chunkStart)
+		return nil, fmt.Errorf("chunk not found %v", chunkStart)
 	}
 
 	// first chunk will be aligned with the start
@@ -323,7 +323,7 @@ func (r *Handle) Seek(offset int64, whence int) (int64, error) {
 		fs.Debugf(r, "moving offset end (%v) from %v to %v", r.cachedObject.Size(), r.offset, r.cachedObject.Size()+offset)
 		r.offset = r.cachedObject.Size() + offset
 	default:
-		err = errors.Errorf("cache: unimplemented seek whence %v", whence)
+		err = fmt.Errorf("cache: unimplemented seek whence %v", whence)
 	}
 
 	chunkStart := r.offset - (r.offset % int64(r.cacheFs().opt.ChunkSize))

backend/cache/object.go

@@ -5,12 +5,12 @@ package cache
 
 import (
 	"context"
+	"fmt"
 	"io"
 	"path"
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/hash"
 	"github.com/rclone/rclone/lib/readers"
@@ -178,10 +178,14 @@ func (o *Object) refreshFromSource(ctx context.Context, force bool) error {
 	}
 	if o.isTempFile() {
 		liveObject, err = o.ParentFs.NewObject(ctx, o.Remote())
-		err = errors.Wrapf(err, "in parent fs %v", o.ParentFs)
+		if err != nil {
+			err = fmt.Errorf("in parent fs %v: %w", o.ParentFs, err)
+		}
 	} else {
 		liveObject, err = o.CacheFs.Fs.NewObject(ctx, o.Remote())
-		err = errors.Wrapf(err, "in cache fs %v", o.CacheFs.Fs)
+		if err != nil {
+			err = fmt.Errorf("in cache fs %v: %w", o.CacheFs.Fs, err)
+		}
 	}
 	if err != nil {
 		fs.Errorf(o, "error refreshing object in : %v", err)
@@ -253,7 +257,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		defer o.CacheFs.backgroundRunner.play()
 		// don't allow started uploads
 		if o.isTempFile() && o.tempFileStartedUpload() {
-			return errors.Errorf("%v is currently uploading, can't update", o)
+			return fmt.Errorf("%v is currently uploading, can't update", o)
 		}
 	}
 	fs.Debugf(o, "updating object contents with size %v", src.Size())
@@ -292,7 +296,7 @@ func (o *Object) Remove(ctx context.Context) error {
 		defer o.CacheFs.backgroundRunner.play()
 		// don't allow started uploads
 		if o.isTempFile() && o.tempFileStartedUpload() {
-			return errors.Errorf("%v is currently uploading, can't delete", o)
+			return fmt.Errorf("%v is currently uploading, can't delete", o)
 		}
 	}
 	err := o.Object.Remove(ctx)

backend/cache/storage_memory.go

@@ -4,12 +4,12 @@
 package cache
 
 import (
+	"fmt"
 	"strconv"
 	"strings"
 	"time"
 
 	cache "github.com/patrickmn/go-cache"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 )
 
@@ -53,7 +53,7 @@ func (m *Memory) GetChunk(cachedObject *Object, offset int64) ([]byte, error) {
 		return data, nil
 	}
 
-	return nil, errors.Errorf("couldn't get cached object data at offset %v", offset)
+	return nil, fmt.Errorf("couldn't get cached object data at offset %v", offset)
 }
 
 // AddChunk adds a new chunk of a cached object

backend/cache/storage_persistent.go

@@ -17,7 +17,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/walk"
 	bolt "go.etcd.io/bbolt"
@@ -120,11 +119,11 @@ func (b *Persistent) connect() error {
 
 	err = os.MkdirAll(b.dataPath, os.ModePerm)
 	if err != nil {
-		return errors.Wrapf(err, "failed to create a data directory %q", b.dataPath)
+		return fmt.Errorf("failed to create a data directory %q: %w", b.dataPath, err)
 	}
 	b.db, err = bolt.Open(b.dbPath, 0644, &bolt.Options{Timeout: b.features.DbWaitTime})
 	if err != nil {
-		return errors.Wrapf(err, "failed to open a cache connection to %q", b.dbPath)
+		return fmt.Errorf("failed to open a cache connection to %q: %w", b.dbPath, err)
 	}
 	if b.features.PurgeDb {
 		b.Purge()
@@ -176,7 +175,7 @@ func (b *Persistent) GetDir(remote string) (*Directory, error) {
 	err := b.db.View(func(tx *bolt.Tx) error {
 		bucket := b.getBucket(remote, false, tx)
 		if bucket == nil {
-			return errors.Errorf("couldn't open bucket (%v)", remote)
+			return fmt.Errorf("couldn't open bucket (%v)", remote)
 		}
 
 		data := bucket.Get([]byte("."))
@@ -184,7 +183,7 @@ func (b *Persistent) GetDir(remote string) (*Directory, error) {
 			return json.Unmarshal(data, cd)
 		}
 
-		return errors.Errorf("%v not found", remote)
+		return fmt.Errorf("%v not found", remote)
 	})
 
 	return cd, err
@@ -209,7 +208,7 @@ func (b *Persistent) AddBatchDir(cachedDirs []*Directory) error {
 			bucket = b.getBucket(cachedDirs[0].Dir, true, tx)
 		}
 		if bucket == nil {
-			return errors.Errorf("couldn't open bucket (%v)", cachedDirs[0].Dir)
+			return fmt.Errorf("couldn't open bucket (%v)", cachedDirs[0].Dir)
 		}
 
 		for _, cachedDir := range cachedDirs {
@@ -226,7 +225,7 @@ func (b *Persistent) AddBatchDir(cachedDirs []*Directory) error {
 
 			encoded, err := json.Marshal(cachedDir)
 			if err != nil {
-				return errors.Errorf("couldn't marshal object (%v): %v", cachedDir, err)
+				return fmt.Errorf("couldn't marshal object (%v): %v", cachedDir, err)
 			}
 			err = b.Put([]byte("."), encoded)
 			if err != nil {
@@ -244,17 +243,17 @@ func (b *Persistent) GetDirEntries(cachedDir *Directory) (fs.DirEntries, error)
 	err := b.db.View(func(tx *bolt.Tx) error {
 		bucket := b.getBucket(cachedDir.abs(), false, tx)
 		if bucket == nil {
-			return errors.Errorf("couldn't open bucket (%v)", cachedDir.abs())
+			return fmt.Errorf("couldn't open bucket (%v)", cachedDir.abs())
 		}
 
 		val := bucket.Get([]byte("."))
 		if val != nil {
 			err := json.Unmarshal(val, cachedDir)
 			if err != nil {
-				return errors.Errorf("error during unmarshalling obj: %v", err)
+				return fmt.Errorf("error during unmarshalling obj: %v", err)
 			}
 		} else {
-			return errors.Errorf("missing cached dir: %v", cachedDir)
+			return fmt.Errorf("missing cached dir: %v", cachedDir)
 		}
 
 		c := bucket.Cursor()
@@ -269,7 +268,7 @@ func (b *Persistent) GetDirEntries(cachedDir *Directory) (fs.DirEntries, error)
 				// we try to find a cached meta for the dir
 				currentBucket := c.Bucket().Bucket(k)
 				if currentBucket == nil {
-					return errors.Errorf("couldn't open bucket (%v)", string(k))
+					return fmt.Errorf("couldn't open bucket (%v)", string(k))
 				}
 
 				metaKey := currentBucket.Get([]byte("."))
@@ -318,7 +317,7 @@ func (b *Persistent) RemoveDir(fp string) error {
 		err = b.db.Update(func(tx *bolt.Tx) error {
 			bucket := b.getBucket(cleanPath(parentDir), false, tx)
 			if bucket == nil {
-				return errors.Errorf("couldn't open bucket (%v)", fp)
+				return fmt.Errorf("couldn't open bucket (%v)", fp)
 			}
 			// delete the cached dir
 			err := bucket.DeleteBucket([]byte(cleanPath(dirName)))
@@ -378,13 +377,13 @@ func (b *Persistent) GetObject(cachedObject *Object) (err error) {
 	return b.db.View(func(tx *bolt.Tx) error {
 		bucket := b.getBucket(cachedObject.Dir, false, tx)
 		if bucket == nil {
-			return errors.Errorf("couldn't open parent bucket for %v", cachedObject.Dir)
+			return fmt.Errorf("couldn't open parent bucket for %v", cachedObject.Dir)
 		}
 		val := bucket.Get([]byte(cachedObject.Name))
 		if val != nil {
 			return json.Unmarshal(val, cachedObject)
 		}
-		return errors.Errorf("couldn't find object (%v)", cachedObject.Name)
+		return fmt.Errorf("couldn't find object (%v)", cachedObject.Name)
 	})
 }
 
@@ -393,16 +392,16 @@ func (b *Persistent) AddObject(cachedObject *Object) error {
 	return b.db.Update(func(tx *bolt.Tx) error {
 		bucket := b.getBucket(cachedObject.Dir, true, tx)
 		if bucket == nil {
-			return errors.Errorf("couldn't open parent bucket for %v", cachedObject)
+			return fmt.Errorf("couldn't open parent bucket for %v", cachedObject)
 		}
 		// cache Object Info
 		encoded, err := json.Marshal(cachedObject)
 		if err != nil {
-			return errors.Errorf("couldn't marshal object (%v) info: %v", cachedObject, err)
+			return fmt.Errorf("couldn't marshal object (%v) info: %v", cachedObject, err)
 		}
 		err = bucket.Put([]byte(cachedObject.Name), encoded)
 		if err != nil {
-			return errors.Errorf("couldn't cache object (%v) info: %v", cachedObject, err)
+			return fmt.Errorf("couldn't cache object (%v) info: %v", cachedObject, err)
 		}
 		return nil
 	})
@@ -414,7 +413,7 @@ func (b *Persistent) RemoveObject(fp string) error {
 	return b.db.Update(func(tx *bolt.Tx) error {
 		bucket := b.getBucket(cleanPath(parentDir), false, tx)
 		if bucket == nil {
-			return errors.Errorf("couldn't open parent bucket for %v", cleanPath(parentDir))
+			return fmt.Errorf("couldn't open parent bucket for %v", cleanPath(parentDir))
 		}
 		err := bucket.Delete([]byte(cleanPath(objName)))
 		if err != nil {
@@ -446,7 +445,7 @@ func (b *Persistent) HasEntry(remote string) bool {
 	err := b.db.View(func(tx *bolt.Tx) error {
 		bucket := b.getBucket(dir, false, tx)
 		if bucket == nil {
-			return errors.Errorf("couldn't open parent bucket for %v", remote)
+			return fmt.Errorf("couldn't open parent bucket for %v", remote)
 		}
 		if f := bucket.Bucket([]byte(name)); f != nil {
 			return nil
@@ -455,7 +454,7 @@ func (b *Persistent) HasEntry(remote string) bool {
 			return nil
 		}
 
-		return errors.Errorf("couldn't find object (%v)", remote)
+		return fmt.Errorf("couldn't find object (%v)", remote)
 	})
 	if err == nil {
 		return true
@@ -555,7 +554,7 @@ func (b *Persistent) CleanChunksBySize(maxSize int64) {
 	err := b.db.Update(func(tx *bolt.Tx) error {
 		dataTsBucket := tx.Bucket([]byte(DataTsBucket))
 		if dataTsBucket == nil {
-			return errors.Errorf("Couldn't open (%v) bucket", DataTsBucket)
+			return fmt.Errorf("Couldn't open (%v) bucket", DataTsBucket)
 		}
 		// iterate through ts
 		c := dataTsBucket.Cursor()
@@ -733,7 +732,7 @@ func (b *Persistent) GetChunkTs(path string, offset int64) (time.Time, error) {
 				return nil
 			}
 		}
-		return errors.Errorf("not found %v-%v", path, offset)
+		return fmt.Errorf("not found %v-%v", path, offset)
 	})
 
 	return t, err
@@ -773,7 +772,7 @@ func (b *Persistent) addPendingUpload(destPath string, started bool) error {
 	return b.db.Update(func(tx *bolt.Tx) error {
 		bucket, err := tx.CreateBucketIfNotExists([]byte(tempBucket))
 		if err != nil {
-			return errors.Errorf("couldn't bucket for %v", tempBucket)
+			return fmt.Errorf("couldn't bucket for %v", tempBucket)
 		}
 		tempObj := &tempUploadInfo{
 			DestPath: destPath,
@@ -784,11 +783,11 @@ func (b *Persistent) addPendingUpload(destPath string, started bool) error {
 		// cache Object Info
 		encoded, err := json.Marshal(tempObj)
 		if err != nil {
-			return errors.Errorf("couldn't marshal object (%v) info: %v", destPath, err)
+			return fmt.Errorf("couldn't marshal object (%v) info: %v", destPath, err)
 		}
 		err = bucket.Put([]byte(destPath), encoded)
 		if err != nil {
-			return errors.Errorf("couldn't cache object (%v) info: %v", destPath, err)
+			return fmt.Errorf("couldn't cache object (%v) info: %v", destPath, err)
 		}
 
 		return nil
@@ -803,7 +802,7 @@ func (b *Persistent) getPendingUpload(inRoot string, waitTime time.Duration) (de
 	err = b.db.Update(func(tx *bolt.Tx) error {
 		bucket, err := tx.CreateBucketIfNotExists([]byte(tempBucket))
 		if err != nil {
-			return errors.Errorf("couldn't bucket for %v", tempBucket)
+			return fmt.Errorf("couldn't bucket for %v", tempBucket)
 		}
 
 		c := bucket.Cursor()
@@ -836,7 +835,7 @@ func (b *Persistent) getPendingUpload(inRoot string, waitTime time.Duration) (de
 			return nil
 		}
 
-		return errors.Errorf("no pending upload found")
+		return fmt.Errorf("no pending upload found")
 	})
 
 	return destPath, err
@@ -847,14 +846,14 @@ func (b *Persistent) SearchPendingUpload(remote string) (started bool, err error
 	err = b.db.View(func(tx *bolt.Tx) error {
 		bucket := tx.Bucket([]byte(tempBucket))
 		if bucket == nil {
-			return errors.Errorf("couldn't bucket for %v", tempBucket)
+			return fmt.Errorf("couldn't bucket for %v", tempBucket)
 		}
 
 		var tempObj = &tempUploadInfo{}
 		v := bucket.Get([]byte(remote))
 		err = json.Unmarshal(v, tempObj)
 		if err != nil {
-			return errors.Errorf("pending upload (%v) not found %v", remote, err)
+			return fmt.Errorf("pending upload (%v) not found %v", remote, err)
 		}
 
 		started = tempObj.Started
@@ -869,7 +868,7 @@ func (b *Persistent) searchPendingUploadFromDir(dir string) (remotes []string, e
 	err = b.db.View(func(tx *bolt.Tx) error {
 		bucket := tx.Bucket([]byte(tempBucket))
 		if bucket == nil {
-			return errors.Errorf("couldn't bucket for %v", tempBucket)
+			return fmt.Errorf("couldn't bucket for %v", tempBucket)
 		}
 
 		c := bucket.Cursor()
@@ -899,22 +898,22 @@ func (b *Persistent) rollbackPendingUpload(remote string) error {
 	return b.db.Update(func(tx *bolt.Tx) error {
 		bucket, err := tx.CreateBucketIfNotExists([]byte(tempBucket))
 		if err != nil {
-			return errors.Errorf("couldn't bucket for %v", tempBucket)
+			return fmt.Errorf("couldn't bucket for %v", tempBucket)
 		}
 		var tempObj = &tempUploadInfo{}
 		v := bucket.Get([]byte(remote))
 		err = json.Unmarshal(v, tempObj)
 		if err != nil {
-			return errors.Errorf("pending upload (%v) not found %v", remote, err)
+			return fmt.Errorf("pending upload (%v) not found %v", remote, err)
 		}
 		tempObj.Started = false
 		v2, err := json.Marshal(tempObj)
 		if err != nil {
-			return errors.Errorf("pending upload not updated %v", err)
+			return fmt.Errorf("pending upload not updated %v", err)
 		}
 		err = bucket.Put([]byte(tempObj.DestPath), v2)
 		if err != nil {
-			return errors.Errorf("pending upload not updated %v", err)
+			return fmt.Errorf("pending upload not updated %v", err)
 		}
 		return nil
 	})
@@ -927,7 +926,7 @@ func (b *Persistent) removePendingUpload(remote string) error {
 	return b.db.Update(func(tx *bolt.Tx) error {
 		bucket, err := tx.CreateBucketIfNotExists([]byte(tempBucket))
 		if err != nil {
-			return errors.Errorf("couldn't bucket for %v", tempBucket)
+			return fmt.Errorf("couldn't bucket for %v", tempBucket)
 		}
 		return bucket.Delete([]byte(remote))
 	})
@@ -942,17 +941,17 @@ func (b *Persistent) updatePendingUpload(remote string, fn func(item *tempUpload
 	return b.db.Update(func(tx *bolt.Tx) error {
 		bucket, err := tx.CreateBucketIfNotExists([]byte(tempBucket))
 		if err != nil {
-			return errors.Errorf("couldn't bucket for %v", tempBucket)
+			return fmt.Errorf("couldn't bucket for %v", tempBucket)
 		}
 
 		var tempObj = &tempUploadInfo{}
 		v := bucket.Get([]byte(remote))
 		err = json.Unmarshal(v, tempObj)
 		if err != nil {
-			return errors.Errorf("pending upload (%v) not found %v", remote, err)
+			return fmt.Errorf("pending upload (%v) not found %v", remote, err)
 		}
 		if tempObj.Started {
-			return errors.Errorf("pending upload already started %v", remote)
+			return fmt.Errorf("pending upload already started %v", remote)
 		}
 		err = fn(tempObj)
 		if err != nil {
@@ -970,11 +969,11 @@ func (b *Persistent) updatePendingUpload(remote string, fn func(item *tempUpload
 		}
 		v2, err := json.Marshal(tempObj)
 		if err != nil {
-			return errors.Errorf("pending upload not updated %v", err)
+			return fmt.Errorf("pending upload not updated %v", err)
 		}
 		err = bucket.Put([]byte(tempObj.DestPath), v2)
 		if err != nil {
-			return errors.Errorf("pending upload not updated %v", err)
+			return fmt.Errorf("pending upload not updated %v", err)
 		}
 
 		return nil
@@ -1015,11 +1014,11 @@ func (b *Persistent) ReconcileTempUploads(ctx context.Context, cacheFs *Fs) erro
 			// cache Object Info
 			encoded, err := json.Marshal(tempObj)
 			if err != nil {
-				return errors.Errorf("couldn't marshal object (%v) info: %v", queuedEntry, err)
+				return fmt.Errorf("couldn't marshal object (%v) info: %v", queuedEntry, err)
 			}
 			err = bucket.Put([]byte(destPath), encoded)
 			if err != nil {
-				return errors.Errorf("couldn't cache object (%v) info: %v", destPath, err)
+				return fmt.Errorf("couldn't cache object (%v) info: %v", destPath, err)
 			}
 			fs.Debugf(cacheFs, "reconciled temporary upload: %v", destPath)
 		}

backend/chunker/chunker.go

@@ -8,6 +8,7 @@ import (
 	"crypto/sha1"
 	"encoding/hex"
 	"encoding/json"
+	"errors"
 	"fmt"
 	gohash "hash"
 	"io"
@@ -21,7 +22,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/accounting"
 	"github.com/rclone/rclone/fs/cache"
@@ -290,13 +290,13 @@ func NewFs(ctx context.Context, name, rpath string, m configmap.Mapper) (fs.Fs,
 
 	baseName, basePath, err := fspath.SplitFs(remote)
 	if err != nil {
-		return nil, errors.Wrapf(err, "failed to parse remote %q to wrap", remote)
+		return nil, fmt.Errorf("failed to parse remote %q to wrap: %w", remote, err)
 	}
 	// Look for a file first
 	remotePath := fspath.JoinRootPath(basePath, rpath)
 	baseFs, err := cache.Get(ctx, baseName+remotePath)
 	if err != fs.ErrorIsFile && err != nil {
-		return nil, errors.Wrapf(err, "failed to make remote %q to wrap", baseName+remotePath)
+		return nil, fmt.Errorf("failed to make remote %q to wrap: %w", baseName+remotePath, err)
 	}
 	if !operations.CanServerSideMove(baseFs) {
 		return nil, errors.New("can't use chunker on a backend which doesn't support server-side move or copy")
@@ -386,7 +386,7 @@ type Fs struct {
 // configure must be called only from NewFs or by unit tests.
 func (f *Fs) configure(nameFormat, metaFormat, hashType, transactionMode string) error {
 	if err := f.setChunkNameFormat(nameFormat); err != nil {
-		return errors.Wrapf(err, "invalid name format '%s'", nameFormat)
+		return fmt.Errorf("invalid name format '%s': %w", nameFormat, err)
 	}
 	if err := f.setMetaFormat(metaFormat); err != nil {
 		return err
@@ -878,7 +878,7 @@ func (f *Fs) NewObject(ctx context.Context, remote string) (fs.Object, error) {
 // ignores non-chunked objects and skips chunk size checks.
 func (f *Fs) scanObject(ctx context.Context, remote string, quickScan bool) (fs.Object, error) {
 	if err := f.forbidChunk(false, remote); err != nil {
-		return nil, errors.Wrap(err, "can't access")
+		return nil, fmt.Errorf("can't access: %w", err)
 	}
 
 	var (
@@ -927,7 +927,7 @@ func (f *Fs) scanObject(ctx context.Context, remote string, quickScan bool) (fs.
 	case fs.ErrorDirNotFound:
 		entries = nil
 	default:
-		return nil, errors.Wrap(err, "can't detect composite file")
+		return nil, fmt.Errorf("can't detect composite file: %w", err)
 	}
 
 	if f.useNoRename {
@@ -1067,7 +1067,7 @@ func (o *Object) readMetadata(ctx context.Context) error {
 		case ErrMetaTooBig, ErrMetaUnknown:
 			return err // return these errors unwrapped for unit tests
 		default:
-			return errors.Wrap(err, "invalid metadata")
+			return fmt.Errorf("invalid metadata: %w", err)
 		}
 		if o.size != metaInfo.Size() || len(o.chunks) != metaInfo.nChunks {
 			return errors.New("metadata doesn't match file size")
@@ -1132,7 +1132,7 @@ func (f *Fs) put(
 
 	// Perform consistency checks
 	if err := f.forbidChunk(src, remote); err != nil {
-		return nil, errors.Wrap(err, action+" refused")
+		return nil, fmt.Errorf("%s refused: %w", action, err)
 	}
 	if target == nil {
 		// Get target object with a quick directory scan
@@ -1146,7 +1146,7 @@ func (f *Fs) put(
 		obj := target.(*Object)
 		if err := obj.readMetadata(ctx); err == ErrMetaUnknown {
 			// refuse to update a file of unsupported format
-			return nil, errors.Wrap(err, "refusing to "+action)
+			return nil, fmt.Errorf("refusing to %s: %w", action, err)
 		}
 	}
 
@@ -1564,7 +1564,7 @@ func (f *Fs) Hashes() hash.Set {
 // Shouldn't return an error if it already exists
 func (f *Fs) Mkdir(ctx context.Context, dir string) error {
 	if err := f.forbidChunk(dir, dir); err != nil {
-		return errors.Wrap(err, "can't mkdir")
+		return fmt.Errorf("can't mkdir: %w", err)
 	}
 	return f.base.Mkdir(ctx, dir)
 }
@@ -1633,7 +1633,7 @@ func (o *Object) Remove(ctx context.Context) (err error) {
 	if err := o.f.forbidChunk(o, o.Remote()); err != nil {
 		// operations.Move can still call Remove if chunker's Move refuses
 		// to corrupt file in hard mode. Hence, refuse to Remove, too.
-		return errors.Wrap(err, "refuse to corrupt")
+		return fmt.Errorf("refuse to corrupt: %w", err)
 	}
 	if err := o.readMetadata(ctx); err == ErrMetaUnknown {
 		// Proceed but warn user that unexpected things can happen.
@@ -1661,12 +1661,12 @@ func (o *Object) Remove(ctx context.Context) (err error) {
 // copyOrMove implements copy or move
 func (f *Fs) copyOrMove(ctx context.Context, o *Object, remote string, do copyMoveFn, md5, sha1, opName string) (fs.Object, error) {
 	if err := f.forbidChunk(o, remote); err != nil {
-		return nil, errors.Wrapf(err, "can't %s", opName)
+		return nil, fmt.Errorf("can't %s: %w", opName, err)
 	}
 	if err := o.readMetadata(ctx); err != nil {
 		// Refuse to copy/move composite files with invalid or future
 		// metadata format which might involve unsupported chunk types.
-		return nil, errors.Wrapf(err, "can't %s this file", opName)
+		return nil, fmt.Errorf("can't %s this file: %w", opName, err)
 	}
 	if !o.isComposite() {
 		fs.Debugf(o, "%s non-chunked object...", opName)
@@ -2163,7 +2163,7 @@ func (o *Object) UnWrap() fs.Object {
 func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (rc io.ReadCloser, err error) {
 	if err := o.readMetadata(ctx); err != nil {
 		// refuse to open unsupported format
-		return nil, errors.Wrap(err, "can't open")
+		return nil, fmt.Errorf("can't open: %w", err)
 	}
 	if !o.isComposite() {
 		return o.mainChunk().Open(ctx, options...) // chain to wrapped non-chunked file

backend/compress/compress.go

@@ -10,6 +10,7 @@ import (
 	"encoding/binary"
 	"encoding/hex"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -21,7 +22,6 @@ import (
 	"github.com/buengese/sgzip"
 	"github.com/gabriel-vasile/mimetype"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/accounting"
 	"github.com/rclone/rclone/fs/chunkedreader"
@@ -143,7 +143,7 @@ func NewFs(ctx context.Context, name, rpath string, m configmap.Mapper) (fs.Fs,
 
 	wInfo, wName, wPath, wConfig, err := fs.ConfigFs(remote)
 	if err != nil {
-		return nil, errors.Wrapf(err, "failed to parse remote %q to wrap", remote)
+		return nil, fmt.Errorf("failed to parse remote %q to wrap: %w", remote, err)
 	}
 
 	// Strip trailing slashes if they exist in rpath
@@ -158,7 +158,7 @@ func NewFs(ctx context.Context, name, rpath string, m configmap.Mapper) (fs.Fs,
 		wrappedFs, err = wInfo.NewFs(ctx, wName, remotePath, wConfig)
 	}
 	if err != nil && err != fs.ErrorIsFile {
-		return nil, errors.Wrapf(err, "failed to make remote %s:%q to wrap", wName, remotePath)
+		return nil, fmt.Errorf("failed to make remote %s:%q to wrap: %w", wName, remotePath, err)
 	}
 
 	// Create the wrapping fs
@@ -304,7 +304,7 @@ func (f *Fs) processEntries(entries fs.DirEntries) (newEntries fs.DirEntries, er
 		case fs.Directory:
 			f.addDir(&newEntries, x)
 		default:
-			return nil, errors.Errorf("Unknown object type %T", entry)
+			return nil, fmt.Errorf("Unknown object type %T", entry)
 		}
 	}
 	return newEntries, nil
@@ -410,7 +410,7 @@ func (f *Fs) verifyObjectHash(ctx context.Context, o fs.Object, hasher *hash.Mul
 	srcHash := hasher.Sums()[ht]
 	dstHash, err := o.Hash(ctx, ht)
 	if err != nil {
-		return errors.Wrap(err, "failed to read destination hash")
+		return fmt.Errorf("failed to read destination hash: %w", err)
 	}
 	if srcHash != "" && dstHash != "" && srcHash != dstHash {
 		// remove object
@@ -418,7 +418,7 @@ func (f *Fs) verifyObjectHash(ctx context.Context, o fs.Object, hasher *hash.Mul
 		if err != nil {
 			fs.Errorf(o, "Failed to remove corrupted object: %v", err)
 		}
-		return errors.Errorf("corrupted on transfer: %v compressed hashes differ %q vs %q", ht, srcHash, dstHash)
+		return fmt.Errorf("corrupted on transfer: %v compressed hashes differ %q vs %q", ht, srcHash, dstHash)
 	}
 	return nil
 }
@@ -462,10 +462,10 @@ func (f *Fs) rcat(ctx context.Context, dstFileName string, in io.ReadCloser, mod
 		_ = os.Remove(tempFile.Name())
 	}()
 	if err != nil {
-		return nil, errors.Wrap(err, "Failed to create temporary local FS to spool file")
+		return nil, fmt.Errorf("Failed to create temporary local FS to spool file: %w", err)
 	}
 	if _, err = io.Copy(tempFile, in); err != nil {
-		return nil, errors.Wrap(err, "Failed to write temporary local file")
+		return nil, fmt.Errorf("Failed to write temporary local file: %w", err)
 	}
 	if _, err = tempFile.Seek(0, 0); err != nil {
 		return nil, err
@@ -714,7 +714,7 @@ func (f *Fs) PutStream(ctx context.Context, in io.Reader, src fs.ObjectInfo, opt
 	if found && (oldObj.(*Object).meta.Mode != Uncompressed || compressible) {
 		err = oldObj.(*Object).Object.Remove(ctx)
 		if err != nil {
-			return nil, errors.Wrap(err, "Could remove original object")
+			return nil, fmt.Errorf("Could remove original object: %w", err)
 		}
 	}
 
@@ -723,7 +723,7 @@ func (f *Fs) PutStream(ctx context.Context, in io.Reader, src fs.ObjectInfo, opt
 	if compressible {
 		wrapObj, err := operations.Move(ctx, f.Fs, nil, f.dataName(src.Remote(), newObj.size, compressible), newObj.Object)
 		if err != nil {
-			return nil, errors.Wrap(err, "Couldn't rename streamed Object.")
+			return nil, fmt.Errorf("Couldn't rename streamed Object.: %w", err)
 		}
 		newObj.Object = wrapObj
 	}

backend/crypt/cipher.go

@@ -7,6 +7,7 @@ import (
 	gocipher "crypto/cipher"
 	"crypto/rand"
 	"encoding/base32"
+	"errors"
 	"fmt"
 	"io"
 	"strconv"
@@ -15,7 +16,6 @@ import (
 	"time"
 	"unicode/utf8"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/crypt/pkcs7"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/accounting"
@@ -94,7 +94,7 @@ func NewNameEncryptionMode(s string) (mode NameEncryptionMode, err error) {
 	case "obfuscate":
 		mode = NameEncryptionObfuscated
 	default:
-		err = errors.Errorf("Unknown file name encryption mode %q", s)
+		err = fmt.Errorf("Unknown file name encryption mode %q", s)
 	}
 	return mode, err
 }
@@ -580,7 +580,7 @@ func (n *nonce) pointer() *[fileNonceSize]byte {
 func (n *nonce) fromReader(in io.Reader) error {
 	read, err := io.ReadFull(in, (*n)[:])
 	if read != fileNonceSize {
-		return errors.Wrap(err, "short read of nonce")
+		return fmt.Errorf("short read of nonce: %w", err)
 	}
 	return nil
 }
@@ -956,7 +956,7 @@ func (fh *decrypter) RangeSeek(ctx context.Context, offset int64, whence int, li
 		// Re-open the underlying object with the offset given
 		rc, err := fh.open(ctx, underlyingOffset, underlyingLimit)
 		if err != nil {
-			return 0, fh.finish(errors.Wrap(err, "couldn't reopen file with offset and limit"))
+			return 0, fh.finish(fmt.Errorf("couldn't reopen file with offset and limit: %w", err))
 		}
 
 		// Set the file handle

backend/crypt/cipher_test.go

@@ -4,13 +4,13 @@ import (
 	"bytes"
 	"context"
 	"encoding/base32"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
 	"strings"
 	"testing"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/crypt/pkcs7"
 	"github.com/rclone/rclone/lib/readers"
 	"github.com/stretchr/testify/assert"
@@ -637,7 +637,7 @@ func (r *randomSource) Read(p []byte) (n int, err error) {
 func (r *randomSource) Write(p []byte) (n int, err error) {
 	for i := range p {
 		if p[i] != r.next() {
-			return 0, errors.Errorf("Error in stream at %d", r.counter)
+			return 0, fmt.Errorf("Error in stream at %d", r.counter)
 		}
 	}
 	return len(p), nil

backend/crypt/crypt.go

@@ -3,13 +3,13 @@ package crypt
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"path"
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/accounting"
 	"github.com/rclone/rclone/fs/cache"
@@ -131,18 +131,18 @@ func newCipherForConfig(opt *Options) (*Cipher, error) {
 	}
 	password, err := obscure.Reveal(opt.Password)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to decrypt password")
+		return nil, fmt.Errorf("failed to decrypt password: %w", err)
 	}
 	var salt string
 	if opt.Password2 != "" {
 		salt, err = obscure.Reveal(opt.Password2)
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to decrypt password2")
+			return nil, fmt.Errorf("failed to decrypt password2: %w", err)
 		}
 	}
 	cipher, err := newCipher(mode, password, salt, opt.DirectoryNameEncryption)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to make cipher")
+		return nil, fmt.Errorf("failed to make cipher: %w", err)
 	}
 	return cipher, nil
 }
@@ -192,7 +192,7 @@ func NewFs(ctx context.Context, name, rpath string, m configmap.Mapper) (fs.Fs,
 		}
 	}
 	if err != fs.ErrorIsFile && err != nil {
-		return nil, errors.Wrapf(err, "failed to make remote %q to wrap", remote)
+		return nil, fmt.Errorf("failed to make remote %q to wrap: %w", remote, err)
 	}
 	f := &Fs{
 		Fs:     wrappedFs,
@@ -300,7 +300,7 @@ func (f *Fs) encryptEntries(ctx context.Context, entries fs.DirEntries) (newEntr
 		case fs.Directory:
 			f.addDir(ctx, &newEntries, x)
 		default:
-			return nil, errors.Errorf("Unknown object type %T", entry)
+			return nil, fmt.Errorf("Unknown object type %T", entry)
 		}
 	}
 	return newEntries, nil
@@ -406,7 +406,7 @@ func (f *Fs) put(ctx context.Context, in io.Reader, src fs.ObjectInfo, options [
 		var dstHash string
 		dstHash, err = o.Hash(ctx, ht)
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to read destination hash")
+			return nil, fmt.Errorf("failed to read destination hash: %w", err)
 		}
 		if srcHash != "" && dstHash != "" {
 			if srcHash != dstHash {
@@ -415,7 +415,7 @@ func (f *Fs) put(ctx context.Context, in io.Reader, src fs.ObjectInfo, options [
 				if err != nil {
 					fs.Errorf(o, "Failed to remove corrupted object: %v", err)
 				}
-				return nil, errors.Errorf("corrupted on transfer: %v crypted hash differ %q vs %q", ht, srcHash, dstHash)
+				return nil, fmt.Errorf("corrupted on transfer: %v crypted hash differ %q vs %q", ht, srcHash, dstHash)
 			}
 			fs.Debugf(src, "%v = %s OK", ht, srcHash)
 		}
@@ -616,24 +616,24 @@ func (f *Fs) computeHashWithNonce(ctx context.Context, nonce nonce, src fs.Objec
 	// Open the src for input
 	in, err := src.Open(ctx)
 	if err != nil {
-		return "", errors.Wrap(err, "failed to open src")
+		return "", fmt.Errorf("failed to open src: %w", err)
 	}
 	defer fs.CheckClose(in, &err)
 
 	// Now encrypt the src with the nonce
 	out, err := f.cipher.newEncrypter(in, &nonce)
 	if err != nil {
-		return "", errors.Wrap(err, "failed to make encrypter")
+		return "", fmt.Errorf("failed to make encrypter: %w", err)
 	}
 
 	// pipe into hash
 	m, err := hash.NewMultiHasherTypes(hash.NewHashSet(hashType))
 	if err != nil {
-		return "", errors.Wrap(err, "failed to make hasher")
+		return "", fmt.Errorf("failed to make hasher: %w", err)
 	}
 	_, err = io.Copy(m, out)
 	if err != nil {
-		return "", errors.Wrap(err, "failed to hash data")
+		return "", fmt.Errorf("failed to hash data: %w", err)
 	}
 
 	return m.Sums()[hashType], nil
@@ -652,12 +652,12 @@ func (f *Fs) ComputeHash(ctx context.Context, o *Object, src fs.Object, hashType
 	// use a limited read so we only read the header
 	in, err := o.Object.Open(ctx, &fs.RangeOption{Start: 0, End: int64(fileHeaderSize) - 1})
 	if err != nil {
-		return "", errors.Wrap(err, "failed to open object to read nonce")
+		return "", fmt.Errorf("failed to open object to read nonce: %w", err)
 	}
 	d, err := f.cipher.newDecrypter(in)
 	if err != nil {
 		_ = in.Close()
-		return "", errors.Wrap(err, "failed to open object to read nonce")
+		return "", fmt.Errorf("failed to open object to read nonce: %w", err)
 	}
 	nonce := d.nonce
 	// fs.Debugf(o, "Read nonce % 2x", nonce)
@@ -676,7 +676,7 @@ func (f *Fs) ComputeHash(ctx context.Context, o *Object, src fs.Object, hashType
 	// Close d (and hence in) once we have read the nonce
 	err = d.Close()
 	if err != nil {
-		return "", errors.Wrap(err, "failed to close nonce read")
+		return "", fmt.Errorf("failed to close nonce read: %w", err)
 	}
 
 	return f.computeHashWithNonce(ctx, nonce, src, hashType)
@@ -795,7 +795,7 @@ func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[str
 		for _, encryptedFileName := range arg {
 			fileName, err := f.DecryptFileName(encryptedFileName)
 			if err != nil {
-				return out, errors.Wrap(err, fmt.Sprintf("Failed to decrypt : %s", encryptedFileName))
+				return out, fmt.Errorf("failed to decrypt: %s: %w", encryptedFileName, err)
 			}
 			out = append(out, fileName)
 		}

backend/crypt/pkcs7/pkcs7.go

@@ -4,7 +4,7 @@
 // buffers which are a multiple of an underlying crypto block size.
 package pkcs7
 
-import "github.com/pkg/errors"
+import "errors"
 
 // Errors Unpad can return
 var (

backend/drive/drive.go

@@ -11,6 +11,7 @@ import (
 	"bytes"
 	"context"
 	"crypto/tls"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -25,7 +26,6 @@ import (
 	"text/template"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/cache"
 	"github.com/rclone/rclone/fs/config"
@@ -188,7 +188,7 @@ func init() {
 			opt := new(Options)
 			err := configstruct.Set(m, opt)
 			if err != nil {
-				return nil, errors.Wrap(err, "couldn't parse config into struct")
+				return nil, fmt.Errorf("couldn't parse config into struct: %w", err)
 			}
 
 			switch config.State {
@@ -226,7 +226,7 @@ func init() {
 			case "teamdrive_config":
 				f, err := newFs(ctx, name, "", m)
 				if err != nil {
-					return nil, errors.Wrap(err, "failed to make Fs to list Shared Drives")
+					return nil, fmt.Errorf("failed to make Fs to list Shared Drives: %w", err)
 				}
 				teamDrives, err := f.listTeamDrives(ctx)
 				if err != nil {
@@ -755,7 +755,7 @@ func (f *Fs) getFile(ctx context.Context, ID string, fields googleapi.Field) (in
 func (f *Fs) getRootID(ctx context.Context) (string, error) {
 	info, err := f.getFile(ctx, "root", "id")
 	if err != nil {
-		return "", errors.Wrap(err, "couldn't find root directory ID")
+		return "", fmt.Errorf("couldn't find root directory ID: %w", err)
 	}
 	return info.Id, nil
 }
@@ -882,7 +882,7 @@ OUTER:
 			return f.shouldRetry(ctx, err)
 		})
 		if err != nil {
-			return false, errors.Wrap(err, "couldn't list directory")
+			return false, fmt.Errorf("couldn't list directory: %w", err)
 		}
 		if files.IncompleteSearch {
 			fs.Errorf(f, "search result INCOMPLETE")
@@ -904,7 +904,7 @@ OUTER:
 				}
 				item, err = f.resolveShortcut(ctx, item)
 				if err != nil {
-					return false, errors.Wrap(err, "list")
+					return false, fmt.Errorf("list: %w", err)
 				}
 			}
 			// Check the case of items is correct since
@@ -965,7 +965,7 @@ func fixMimeType(mimeTypeIn string) string {
 		mimeTypeOut = mime.FormatMediaType(mediaType, param)
 	}
 	if mimeTypeOut == "" {
-		panic(errors.Errorf("unable to fix MIME type %q", mimeTypeIn))
+		panic(fmt.Errorf("unable to fix MIME type %q", mimeTypeIn))
 	}
 	return mimeTypeOut
 }
@@ -1000,7 +1000,7 @@ func parseExtensions(extensionsIn ...string) (extensions, mimeTypes []string, er
 			}
 			mt := mime.TypeByExtension(extension)
 			if mt == "" {
-				return extensions, mimeTypes, errors.Errorf("couldn't find MIME type for extension %q", extension)
+				return extensions, mimeTypes, fmt.Errorf("couldn't find MIME type for extension %q", extension)
 			}
 			if !containsString(extensions, extension) {
 				extensions = append(extensions, extension)
@@ -1027,7 +1027,7 @@ func getServiceAccountClient(ctx context.Context, opt *Options, credentialsData
 	scopes := driveScopes(opt.Scope)
 	conf, err := google.JWTConfigFromJSON(credentialsData, scopes...)
 	if err != nil {
-		return nil, errors.Wrap(err, "error processing credentials")
+		return nil, fmt.Errorf("error processing credentials: %w", err)
 	}
 	if opt.Impersonate != "" {
 		conf.Subject = opt.Impersonate
@@ -1044,19 +1044,19 @@ func createOAuthClient(ctx context.Context, opt *Options, name string, m configm
 	if len(opt.ServiceAccountCredentials) == 0 && opt.ServiceAccountFile != "" {
 		loadedCreds, err := ioutil.ReadFile(env.ShellExpand(opt.ServiceAccountFile))
 		if err != nil {
-			return nil, errors.Wrap(err, "error opening service account credentials file")
+			return nil, fmt.Errorf("error opening service account credentials file: %w", err)
 		}
 		opt.ServiceAccountCredentials = string(loadedCreds)
 	}
 	if opt.ServiceAccountCredentials != "" {
 		oAuthClient, err = getServiceAccountClient(ctx, opt, []byte(opt.ServiceAccountCredentials))
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to create oauth client from service account")
+			return nil, fmt.Errorf("failed to create oauth client from service account: %w", err)
 		}
 	} else {
 		oAuthClient, _, err = oauthutil.NewClientWithBaseClient(ctx, name, m, driveConfig, getClient(ctx, opt))
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to create oauth client")
+			return nil, fmt.Errorf("failed to create oauth client: %w", err)
 		}
 	}
 
@@ -1065,10 +1065,10 @@ func createOAuthClient(ctx context.Context, opt *Options, name string, m configm
 
 func checkUploadChunkSize(cs fs.SizeSuffix) error {
 	if !isPowerOfTwo(int64(cs)) {
-		return errors.Errorf("%v isn't a power of two", cs)
+		return fmt.Errorf("%v isn't a power of two", cs)
 	}
 	if cs < minChunkSize {
-		return errors.Errorf("%s is less than %s", cs, minChunkSize)
+		return fmt.Errorf("%s is less than %s", cs, minChunkSize)
 	}
 	return nil
 }
@@ -1106,16 +1106,16 @@ func newFs(ctx context.Context, name, path string, m configmap.Mapper) (*Fs, err
 	}
 	err = checkUploadCutoff(opt.UploadCutoff)
 	if err != nil {
-		return nil, errors.Wrap(err, "drive: upload cutoff")
+		return nil, fmt.Errorf("drive: upload cutoff: %w", err)
 	}
 	err = checkUploadChunkSize(opt.ChunkSize)
 	if err != nil {
-		return nil, errors.Wrap(err, "drive: chunk size")
+		return nil, fmt.Errorf("drive: chunk size: %w", err)
 	}
 
 	oAuthClient, err := createOAuthClient(ctx, opt, name, m)
 	if err != nil {
-		return nil, errors.Wrap(err, "drive: failed when making oauth client")
+		return nil, fmt.Errorf("drive: failed when making oauth client: %w", err)
 	}
 
 	root, err := parseDrivePath(path)
@@ -1149,13 +1149,13 @@ func newFs(ctx context.Context, name, path string, m configmap.Mapper) (*Fs, err
 	f.client = oAuthClient
 	f.svc, err = drive.New(f.client)
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't create Drive client")
+		return nil, fmt.Errorf("couldn't create Drive client: %w", err)
 	}
 
 	if f.opt.V2DownloadMinSize >= 0 {
 		f.v2Svc, err = drive_v2.New(f.client)
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't create Drive v2 client")
+			return nil, fmt.Errorf("couldn't create Drive v2 client: %w", err)
 		}
 	}
 
@@ -1180,7 +1180,8 @@ func NewFs(ctx context.Context, name, path string, m configmap.Mapper) (fs.Fs, e
 		// otherwise look up the actual root ID
 		rootID, err := f.getRootID(ctx)
 		if err != nil {
-			if gerr, ok := errors.Cause(err).(*googleapi.Error); ok && gerr.Code == 404 {
+			var gerr *googleapi.Error
+			if errors.As(err, &gerr) && gerr.Code == 404 {
 				// 404 means that this scope does not have permission to get the
 				// root so just use "root"
 				rootID = "root"
@@ -1322,7 +1323,7 @@ func (f *Fs) newDocumentObject(remote string, info *drive.File, extension, expor
 func (f *Fs) newLinkObject(remote string, info *drive.File, extension, exportMimeType string) (fs.Object, error) {
 	t := linkTemplate(exportMimeType)
 	if t == nil {
-		return nil, errors.Errorf("unsupported link type %s", exportMimeType)
+		return nil, fmt.Errorf("unsupported link type %s", exportMimeType)
 	}
 	xdgIcon := _mimeTypeToXDGLinkIcons[info.MimeType]
 	if xdgIcon == "" {
@@ -1335,7 +1336,7 @@ func (f *Fs) newLinkObject(remote string, info *drive.File, extension, exportMim
 		info.WebViewLink, info.Name, xdgIcon,
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "executing template failed")
+		return nil, fmt.Errorf("executing template failed: %w", err)
 	}
 
 	baseObject := f.newBaseObject(remote+extension, info)
@@ -1372,7 +1373,7 @@ func (f *Fs) newObjectWithExportInfo(
 	// will have been resolved so this will do nothing.
 	info, err = f.resolveShortcut(ctx, info)
 	if err != nil {
-		return nil, errors.Wrap(err, "new object")
+		return nil, fmt.Errorf("new object: %w", err)
 	}
 	switch {
 	case info.MimeType == driveFolderType:
@@ -2015,13 +2016,14 @@ func (f *Fs) resolveShortcut(ctx context.Context, item *drive.File) (newItem *dr
 	}
 	newItem, err = f.getFile(ctx, item.ShortcutDetails.TargetId, f.fileFields)
 	if err != nil {
-		if gerr, ok := errors.Cause(err).(*googleapi.Error); ok && gerr.Code == 404 {
+		var gerr *googleapi.Error
+		if errors.As(err, &gerr) && gerr.Code == 404 {
 			// 404 means dangling shortcut, so just return the shortcut with the mime type mangled
 			fs.Logf(nil, "Dangling shortcut %q detected", item.Name)
 			item.MimeType = shortcutMimeTypeDangling
 			return item, nil
 		}
-		return nil, errors.Wrap(err, "failed to resolve shortcut")
+		return nil, fmt.Errorf("failed to resolve shortcut: %w", err)
 	}
 	// make sure we use the Name, Parents and Trashed from the original item
 	newItem.Name = item.Name
@@ -2123,10 +2125,10 @@ func (f *Fs) PutUnchecked(ctx context.Context, in io.Reader, src fs.ObjectInfo,
 
 			exportExt, _, _ = f.findExportFormatByMimeType(ctx, importMimeType)
 			if exportExt == "" {
-				return nil, errors.Errorf("No export format found for %q", importMimeType)
+				return nil, fmt.Errorf("No export format found for %q", importMimeType)
 			}
 			if exportExt != srcExt && !f.opt.AllowImportNameChange {
-				return nil, errors.Errorf("Can't convert %q to a document with a different export filetype (%q)", srcExt, exportExt)
+				return nil, fmt.Errorf("Can't convert %q to a document with a different export filetype (%q)", srcExt, exportExt)
 			}
 		}
 	}
@@ -2194,7 +2196,7 @@ func (f *Fs) MergeDirs(ctx context.Context, dirs []fs.Directory) error {
 			return false
 		})
 		if err != nil {
-			return errors.Wrapf(err, "MergeDirs list failed on %v", srcDir)
+			return fmt.Errorf("MergeDirs list failed on %v: %w", srcDir, err)
 		}
 		// move them into place
 		for _, info := range infos {
@@ -2210,14 +2212,14 @@ func (f *Fs) MergeDirs(ctx context.Context, dirs []fs.Directory) error {
 				return f.shouldRetry(ctx, err)
 			})
 			if err != nil {
-				return errors.Wrapf(err, "MergeDirs move failed on %q in %v", info.Name, srcDir)
+				return fmt.Errorf("MergeDirs move failed on %q in %v: %w", info.Name, srcDir, err)
 			}
 		}
 		// rmdir (into trash) the now empty source directory
 		fs.Infof(srcDir, "removing empty directory")
 		err = f.delete(ctx, srcDir.ID(), true)
 		if err != nil {
-			return errors.Wrapf(err, "MergeDirs move failed to rmdir %q", srcDir)
+			return fmt.Errorf("MergeDirs move failed to rmdir %q: %w", srcDir, err)
 		}
 	}
 	return nil
@@ -2280,7 +2282,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
 			return err
 		}
 		if found {
-			return errors.Errorf("directory not empty")
+			return fmt.Errorf("directory not empty")
 		}
 	}
 	if root != "" {
@@ -2458,7 +2460,7 @@ func (f *Fs) cleanupTeamDrive(ctx context.Context, dir string, directoryID strin
 		return false
 	})
 	if err != nil {
-		err = errors.Wrap(err, "failed to list directory")
+		err = fmt.Errorf("failed to list directory: %w", err)
 		r.Errors++
 		fs.Errorf(dir, "%v", err)
 	}
@@ -2502,7 +2504,7 @@ func (f *Fs) teamDriveOK(ctx context.Context) (err error) {
 		return f.shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "failed to get Shared Drive info")
+		return fmt.Errorf("failed to get Shared Drive info: %w", err)
 	}
 	fs.Debugf(f, "read info from Shared Drive %q", td.Name)
 	return err
@@ -2525,7 +2527,7 @@ func (f *Fs) About(ctx context.Context) (*fs.Usage, error) {
 		return f.shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to get Drive storageQuota")
+		return nil, fmt.Errorf("failed to get Drive storageQuota: %w", err)
 	}
 	q := about.StorageQuota
 	usage := &fs.Usage{
@@ -2849,7 +2851,7 @@ func (f *Fs) Hashes() hash.Set {
 func (f *Fs) changeChunkSize(chunkSizeString string) (err error) {
 	chunkSizeInt, err := strconv.ParseInt(chunkSizeString, 10, 64)
 	if err != nil {
-		return errors.Wrap(err, "couldn't convert chunk size to int")
+		return fmt.Errorf("couldn't convert chunk size to int: %w", err)
 	}
 	chunkSize := fs.SizeSuffix(chunkSizeInt)
 	if chunkSize == f.opt.ChunkSize {
@@ -2886,17 +2888,17 @@ func (f *Fs) changeServiceAccountFile(ctx context.Context, file string) (err err
 	f.opt.ServiceAccountCredentials = ""
 	oAuthClient, err := createOAuthClient(ctx, &f.opt, f.name, f.m)
 	if err != nil {
-		return errors.Wrap(err, "drive: failed when making oauth client")
+		return fmt.Errorf("drive: failed when making oauth client: %w", err)
 	}
 	f.client = oAuthClient
 	f.svc, err = drive.New(f.client)
 	if err != nil {
-		return errors.Wrap(err, "couldn't create Drive client")
+		return fmt.Errorf("couldn't create Drive client: %w", err)
 	}
 	if f.opt.V2DownloadMinSize >= 0 {
 		f.v2Svc, err = drive_v2.New(f.client)
 		if err != nil {
-			return errors.Wrap(err, "couldn't create Drive v2 client")
+			return fmt.Errorf("couldn't create Drive v2 client: %w", err)
 		}
 	}
 	return nil
@@ -2925,12 +2927,12 @@ func (f *Fs) makeShortcut(ctx context.Context, srcPath string, dstFs *Fs, dstPat
 		isDir = true
 	} else if srcObj, err := srcFs.NewObject(ctx, srcPath); err != nil {
 		if err != fs.ErrorIsDir {
-			return nil, errors.Wrap(err, "can't find source")
+			return nil, fmt.Errorf("can't find source: %w", err)
 		}
 		// source was a directory
 		srcID, err = srcFs.dirCache.FindDir(ctx, srcPath, false)
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to find source dir")
+			return nil, fmt.Errorf("failed to find source dir: %w", err)
 		}
 		isDir = true
 	} else {
@@ -2947,13 +2949,13 @@ func (f *Fs) makeShortcut(ctx context.Context, srcPath string, dstFs *Fs, dstPat
 		} else if err == fs.ErrorIsDir {
 			err = errors.New("existing directory")
 		}
-		return nil, errors.Wrap(err, "not overwriting shortcut target")
+		return nil, fmt.Errorf("not overwriting shortcut target: %w", err)
 	}
 
 	// Create destination shortcut
 	createInfo, err := dstFs.createFileInfo(ctx, dstPath, time.Now())
 	if err != nil {
-		return nil, errors.Wrap(err, "shortcut destination failed")
+		return nil, fmt.Errorf("shortcut destination failed: %w", err)
 	}
 	createInfo.MimeType = shortcutMimeType
 	createInfo.ShortcutDetails = &drive.FileShortcutDetails{
@@ -2970,7 +2972,7 @@ func (f *Fs) makeShortcut(ctx context.Context, srcPath string, dstFs *Fs, dstPat
 		return dstFs.shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "shortcut creation failed")
+		return nil, fmt.Errorf("shortcut creation failed: %w", err)
 	}
 	if isDir {
 		return nil, nil
@@ -2990,7 +2992,7 @@ func (f *Fs) listTeamDrives(ctx context.Context) (drives []*drive.Drive, err err
 			return defaultFs.shouldRetry(ctx, err)
 		})
 		if err != nil {
-			return drives, errors.Wrap(err, "listing Team Drives failed")
+			return drives, fmt.Errorf("listing Team Drives failed: %w", err)
 		}
 		drives = append(drives, teamDrives.Drives...)
 		if teamDrives.NextPageToken == "" {
@@ -3033,7 +3035,7 @@ func (f *Fs) unTrash(ctx context.Context, dir string, directoryID string, recurs
 				return f.shouldRetry(ctx, err)
 			})
 			if err != nil {
-				err = errors.Wrap(err, "failed to restore")
+				err = fmt.Errorf("failed to restore: %w", err)
 				r.Errors++
 				fs.Errorf(remote, "%v", err)
 			} else {
@@ -3050,7 +3052,7 @@ func (f *Fs) unTrash(ctx context.Context, dir string, directoryID string, recurs
 		return false
 	})
 	if err != nil {
-		err = errors.Wrap(err, "failed to list directory")
+		err = fmt.Errorf("failed to list directory: %w", err)
 		r.Errors++
 		fs.Errorf(dir, "%v", err)
 	}
@@ -3074,10 +3076,10 @@ func (f *Fs) unTrashDir(ctx context.Context, dir string, recurse bool) (r unTras
 func (f *Fs) copyID(ctx context.Context, id, dest string) (err error) {
 	info, err := f.getFile(ctx, id, f.fileFields)
 	if err != nil {
-		return errors.Wrap(err, "couldn't find id")
+		return fmt.Errorf("couldn't find id: %w", err)
 	}
 	if info.MimeType == driveFolderType {
-		return errors.Errorf("can't copy directory use: rclone copy --drive-root-folder-id %s %s %s", id, fs.ConfigString(f), dest)
+		return fmt.Errorf("can't copy directory use: rclone copy --drive-root-folder-id %s %s %s", id, fs.ConfigString(f), dest)
 	}
 	info.Name = f.opt.Enc.ToStandardName(info.Name)
 	o, err := f.newObjectWithInfo(ctx, info.Name, info)
@@ -3100,7 +3102,7 @@ func (f *Fs) copyID(ctx context.Context, id, dest string) (err error) {
 	}
 	_, err = operations.Copy(ctx, dstFs, nil, destLeaf, o)
 	if err != nil {
-		return errors.Wrap(err, "copy failed")
+		return fmt.Errorf("copy failed: %w", err)
 	}
 	return nil
 }
@@ -3299,7 +3301,7 @@ func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[str
 		if ok {
 			targetFs, err := cache.Get(ctx, target)
 			if err != nil {
-				return nil, errors.Wrap(err, "couldn't find target")
+				return nil, fmt.Errorf("couldn't find target: %w", err)
 			}
 			dstFs, ok = targetFs.(*Fs)
 			if !ok {
@@ -3338,7 +3340,7 @@ func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[str
 			arg = arg[2:]
 			err = f.copyID(ctx, id, dest)
 			if err != nil {
-				return nil, errors.Wrapf(err, "failed copying %q to %q", id, dest)
+				return nil, fmt.Errorf("failed copying %q to %q: %w", id, dest, err)
 			}
 		}
 		return nil, nil
@@ -3572,11 +3574,11 @@ func (o *baseObject) open(ctx context.Context, url string, options ...fs.OpenOpt
 				url += "acknowledgeAbuse=true"
 				_, res, err = o.httpResponse(ctx, url, "GET", options)
 			} else {
-				err = errors.Wrap(err, "Use the --drive-acknowledge-abuse flag to download this file")
+				err = fmt.Errorf("Use the --drive-acknowledge-abuse flag to download this file: %w", err)
 			}
 		}
 		if err != nil {
-			return nil, errors.Wrap(err, "open file failed")
+			return nil, fmt.Errorf("open file failed: %w", err)
 		}
 	}
 	return res.Body, nil
@@ -3740,14 +3742,14 @@ func (o *documentObject) Update(ctx context.Context, in io.Reader, src fs.Object
 	}
 
 	if o.fs.importMimeTypes == nil || o.fs.opt.SkipGdocs {
-		return errors.Errorf("can't update google document type without --drive-import-formats")
+		return fmt.Errorf("can't update google document type without --drive-import-formats")
 	}
 	importMimeType = o.fs.findImportFormat(ctx, updateInfo.MimeType)
 	if importMimeType == "" {
-		return errors.Errorf("no import format found for %q", srcMimeType)
+		return fmt.Errorf("no import format found for %q", srcMimeType)
 	}
 	if importMimeType != o.documentMimeType {
-		return errors.Errorf("can't change google document type (o: %q, src: %q, import: %q)", o.documentMimeType, srcMimeType, importMimeType)
+		return fmt.Errorf("can't change google document type (o: %q, src: %q, import: %q)", o.documentMimeType, srcMimeType, importMimeType)
 	}
 	updateInfo.MimeType = importMimeType
 

backend/drive/drive_internal_test.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -15,7 +16,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/pkg/errors"
 	_ "github.com/rclone/rclone/backend/local"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/filter"

backend/dropbox/batcher.go

@@ -8,13 +8,13 @@ package dropbox
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"sync"
 	"time"
 
 	"github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox/async"
 	"github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox/files"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/fserrors"
 	"github.com/rclone/rclone/lib/atexit"
@@ -66,7 +66,7 @@ type batcherResponse struct {
 func newBatcher(ctx context.Context, f *Fs, mode string, size int, timeout time.Duration) (*batcher, error) {
 	// fs.Debugf(f, "Creating batcher with mode %q, size %d, timeout %v", mode, size, timeout)
 	if size > maxBatchSize || size < 0 {
-		return nil, errors.Errorf("dropbox: batch size must be < %d and >= 0 - it is currently %d", maxBatchSize, size)
+		return nil, fmt.Errorf("dropbox: batch size must be < %d and >= 0 - it is currently %d", maxBatchSize, size)
 	}
 
 	async := false
@@ -91,7 +91,7 @@ func newBatcher(ctx context.Context, f *Fs, mode string, size int, timeout time.
 	case "off":
 		size = 0
 	default:
-		return nil, errors.Errorf("dropbox: batch mode must be sync|async|off not %q", mode)
+		return nil, fmt.Errorf("dropbox: batch mode must be sync|async|off not %q", mode)
 	}
 
 	b := &batcher{
@@ -135,7 +135,7 @@ func (b *batcher) finishBatch(ctx context.Context, items []*files.UploadSessionF
 		return err != nil, err
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "batch commit failed")
+		return nil, fmt.Errorf("batch commit failed: %w", err)
 	}
 	return batchStatus, nil
 }
@@ -180,7 +180,7 @@ func (b *batcher) finishBatchJobStatus(ctx context.Context, launchBatchStatus *f
 	if err == nil {
 		err = errors.New("batch didn't complete")
 	}
-	return nil, errors.Wrapf(err, "wait for batch failed after %d tries in %v", try, time.Since(startTime))
+	return nil, fmt.Errorf("wait for batch failed after %d tries in %v: %w", try, time.Since(startTime), err)
 }
 
 // commit a batch
@@ -216,13 +216,13 @@ func (b *batcher) commitBatch(ctx context.Context, items []*files.UploadSessionF
 	case "complete":
 		complete = batchStatus.Complete
 	default:
-		return errors.Errorf("batch returned unknown status %q", batchStatus.Tag)
+		return fmt.Errorf("batch returned unknown status %q", batchStatus.Tag)
 	}
 
 	// Check we got the right number of entries
 	entries := complete.Entries
 	if len(entries) != len(results) {
-		return errors.Errorf("expecting %d items in batch but got %d", len(results), len(entries))
+		return fmt.Errorf("expecting %d items in batch but got %d", len(results), len(entries))
 	}
 
 	// Report results to clients
@@ -250,7 +250,7 @@ func (b *batcher) commitBatch(ctx context.Context, items []*files.UploadSessionF
 					errorTag += "/" + item.Failure.PropertiesError.Tag
 				}
 			}
-			resp.err = errors.Errorf("batch upload failed: %s", errorTag)
+			resp.err = fmt.Errorf("batch upload failed: %s", errorTag)
 		}
 		if !b.async {
 			results[i] <- resp
@@ -261,7 +261,7 @@ func (b *batcher) commitBatch(ctx context.Context, items []*files.UploadSessionF
 
 	// Report an error if any failed in the batch
 	if errorTag != "" {
-		return errors.Errorf("batch had %d errors: last error: %s", errorCount, errorTag)
+		return fmt.Errorf("batch had %d errors: last error: %s", errorCount, errorTag)
 	}
 
 	fs.Debugf(b.f, "Committed %s", desc)

backend/dropbox/dropbox.go

@@ -23,6 +23,7 @@ of path_display and all will be well.
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"path"
@@ -38,7 +39,6 @@ import (
 	"github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox/sharing"
 	"github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox/team"
 	"github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox/users"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/dropbox/dbhash"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
@@ -363,24 +363,24 @@ func shouldRetry(ctx context.Context, err error) (bool, error) {
 	if err == nil {
 		return false, err
 	}
-	baseErrString := errors.Cause(err).Error()
+	errString := err.Error()
 	// First check for specific errors
-	if strings.Contains(baseErrString, "insufficient_space") {
+	if strings.Contains(errString, "insufficient_space") {
 		return false, fserrors.FatalError(err)
-	} else if strings.Contains(baseErrString, "malformed_path") {
+	} else if strings.Contains(errString, "malformed_path") {
 		return false, fserrors.NoRetryError(err)
 	}
 	// Then handle any official Retry-After header from Dropbox's SDK
 	switch e := err.(type) {
 	case auth.RateLimitAPIError:
 		if e.RateLimitError.RetryAfter > 0 {
-			fs.Logf(baseErrString, "Too many requests or write operations. Trying again in %d seconds.", e.RateLimitError.RetryAfter)
+			fs.Logf(errString, "Too many requests or write operations. Trying again in %d seconds.", e.RateLimitError.RetryAfter)
 			err = pacer.RetryAfterError(err, time.Duration(e.RateLimitError.RetryAfter)*time.Second)
 		}
 		return true, err
 	}
 	// Keep old behavior for backward compatibility
-	if strings.Contains(baseErrString, "too_many_write_operations") || strings.Contains(baseErrString, "too_many_requests") || baseErrString == "" {
+	if strings.Contains(errString, "too_many_write_operations") || strings.Contains(errString, "too_many_requests") || errString == "" {
 		return true, err
 	}
 	return fserrors.ShouldRetry(err), err
@@ -389,10 +389,10 @@ func shouldRetry(ctx context.Context, err error) (bool, error) {
 func checkUploadChunkSize(cs fs.SizeSuffix) error {
 	const minChunkSize = fs.SizeSuffixBase
 	if cs < minChunkSize {
-		return errors.Errorf("%s is less than %s", cs, minChunkSize)
+		return fmt.Errorf("%s is less than %s", cs, minChunkSize)
 	}
 	if cs > maxChunkSize {
-		return errors.Errorf("%s is greater than %s", cs, maxChunkSize)
+		return fmt.Errorf("%s is greater than %s", cs, maxChunkSize)
 	}
 	return nil
 }
@@ -415,7 +415,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	}
 	err = checkUploadChunkSize(opt.ChunkSize)
 	if err != nil {
-		return nil, errors.Wrap(err, "dropbox: chunk size")
+		return nil, fmt.Errorf("dropbox: chunk size: %w", err)
 	}
 
 	// Convert the old token if it exists.  The old token was just
@@ -427,13 +427,13 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		newToken := fmt.Sprintf(`{"access_token":"%s","token_type":"bearer","expiry":"0001-01-01T00:00:00Z"}`, oldToken)
 		err := config.SetValueAndSave(name, config.ConfigToken, newToken)
 		if err != nil {
-			return nil, errors.Wrap(err, "NewFS convert token")
+			return nil, fmt.Errorf("NewFS convert token: %w", err)
 		}
 	}
 
 	oAuthClient, _, err := oauthutil.NewClient(ctx, name, m, getOauthConfig(m))
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to configure dropbox")
+		return nil, fmt.Errorf("failed to configure dropbox: %w", err)
 	}
 
 	ci := fs.GetConfig(ctx)
@@ -474,7 +474,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		memberIds, err := f.team.MembersGetInfo(args)
 
 		if err != nil {
-			return nil, errors.Wrapf(err, "invalid dropbox team member: %q", opt.Impersonate)
+			return nil, fmt.Errorf("invalid dropbox team member: %q: %w", opt.Impersonate, err)
 		}
 
 		cfg.AsMemberID = memberIds[0].MemberInfo.Profile.MemberProfile.TeamMemberId
@@ -551,7 +551,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 			return shouldRetry(ctx, err)
 		})
 		if err != nil {
-			return nil, errors.Wrap(err, "get current account failed")
+			return nil, fmt.Errorf("get current account failed: %w", err)
 		}
 		switch x := acc.RootInfo.(type) {
 		case *common.TeamRootInfo:
@@ -559,7 +559,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		case *common.UserRootInfo:
 			f.ns = x.RootNamespaceId
 		default:
-			return nil, errors.Errorf("unknown RootInfo type %v %T", acc.RootInfo, acc.RootInfo)
+			return nil, fmt.Errorf("unknown RootInfo type %v %T", acc.RootInfo, acc.RootInfo)
 		}
 		fs.Debugf(f, "Using root namespace %q", f.ns)
 	}
@@ -710,7 +710,7 @@ func (f *Fs) listSharedFolders(ctx context.Context) (entries fs.DirEntries, err
 				return shouldRetry(ctx, err)
 			})
 			if err != nil {
-				return nil, errors.Wrap(err, "list continue")
+				return nil, fmt.Errorf("list continue: %w", err)
 			}
 		}
 		for _, entry := range res.Entries {
@@ -784,7 +784,7 @@ func (f *Fs) listReceivedFiles(ctx context.Context) (entries fs.DirEntries, err
 				return shouldRetry(ctx, err)
 			})
 			if err != nil {
-				return nil, errors.Wrap(err, "list continue")
+				return nil, fmt.Errorf("list continue: %w", err)
 			}
 		}
 		for _, entry := range res.Entries {
@@ -877,7 +877,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 				return shouldRetry(ctx, err)
 			})
 			if err != nil {
-				return nil, errors.Wrap(err, "list continue")
+				return nil, fmt.Errorf("list continue: %w", err)
 			}
 		}
 		for _, entry := range res.Entries {
@@ -989,7 +989,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) (err error)
 		// check directory exists
 		_, err = f.getDirMetadata(ctx, root)
 		if err != nil {
-			return errors.Wrap(err, "Rmdir")
+			return fmt.Errorf("Rmdir: %w", err)
 		}
 
 		root = f.opt.Enc.FromStandardPath(root)
@@ -1007,7 +1007,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) (err error)
 			return shouldRetry(ctx, err)
 		})
 		if err != nil {
-			return errors.Wrap(err, "Rmdir")
+			return fmt.Errorf("Rmdir: %w", err)
 		}
 		if len(res.Entries) != 0 {
 			return errors.New("directory not empty")
@@ -1073,7 +1073,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 		return shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "copy failed")
+		return nil, fmt.Errorf("copy failed: %w", err)
 	}
 
 	// Set the metadata
@@ -1083,7 +1083,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	}
 	err = dstObj.setMetadataFromEntry(fileInfo)
 	if err != nil {
-		return nil, errors.Wrap(err, "copy failed")
+		return nil, fmt.Errorf("copy failed: %w", err)
 	}
 
 	return dstObj, nil
@@ -1134,7 +1134,7 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 		return shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "move failed")
+		return nil, fmt.Errorf("move failed: %w", err)
 	}
 
 	// Set the metadata
@@ -1144,7 +1144,7 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	}
 	err = dstObj.setMetadataFromEntry(fileInfo)
 	if err != nil {
-		return nil, errors.Wrap(err, "move failed")
+		return nil, fmt.Errorf("move failed: %w", err)
 	}
 	return dstObj, nil
 }
@@ -1252,7 +1252,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 		return shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "MoveDir failed")
+		return fmt.Errorf("MoveDir failed: %w", err)
 	}
 
 	return nil
@@ -1266,7 +1266,7 @@ func (f *Fs) About(ctx context.Context) (usage *fs.Usage, err error) {
 		return shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "about failed")
+		return nil, fmt.Errorf("about failed: %w", err)
 	}
 	var total uint64
 	if q.Allocation != nil {
@@ -1406,7 +1406,7 @@ func (f *Fs) changeNotifyRunner(ctx context.Context, notifyFunc func(string, fs.
 			return shouldRetry(ctx, err)
 		})
 		if err != nil {
-			return "", errors.Wrap(err, "list continue")
+			return "", fmt.Errorf("list continue: %w", err)
 		}
 		cursor = changeList.Cursor
 		var entryType fs.EntryType
@@ -1485,7 +1485,7 @@ func (o *Object) Hash(ctx context.Context, t hash.Type) (string, error) {
 	}
 	err := o.readMetaData(ctx)
 	if err != nil {
-		return "", errors.Wrap(err, "failed to read hash from metadata")
+		return "", fmt.Errorf("failed to read hash from metadata: %w", err)
 	}
 	return o.hash, nil
 }
@@ -1738,7 +1738,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	}
 	remote := o.remotePath()
 	if ignoredFiles.MatchString(remote) {
-		return fserrors.NoRetryError(errors.Errorf("file name %q is disallowed - not uploading", path.Base(remote)))
+		return fserrors.NoRetryError(fmt.Errorf("file name %q is disallowed - not uploading", path.Base(remote)))
 	}
 	commitInfo := files.NewCommitInfo(o.fs.opt.Enc.FromStandardPath(o.remotePath()))
 	commitInfo.Mode.Tag = "overwrite"
@@ -1762,7 +1762,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		})
 	}
 	if err != nil {
-		return errors.Wrap(err, "upload failed")
+		return fmt.Errorf("upload failed: %w", err)
 	}
 	// If we haven't received data back from batch upload then fake it
 	//

backend/fichier/api.go

@@ -2,6 +2,8 @@ package fichier
 
 import (
 	"context"
+	"errors"
+	"fmt"
 	"io"
 	"net/http"
 	"net/url"
@@ -10,7 +12,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/fserrors"
 	"github.com/rclone/rclone/lib/rest"
@@ -81,7 +82,7 @@ func (f *Fs) readFileInfo(ctx context.Context, url string) (*File, error) {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't read file info")
+		return nil, fmt.Errorf("couldn't read file info: %w", err)
 	}
 
 	return &file, err
@@ -110,7 +111,7 @@ func (f *Fs) getDownloadToken(ctx context.Context, url string) (*GetTokenRespons
 		return doretry || !validToken(&token), err
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't list files")
+		return nil, fmt.Errorf("couldn't list files: %w", err)
 	}
 
 	return &token, nil
@@ -144,7 +145,7 @@ func (f *Fs) listSharedFiles(ctx context.Context, id string) (entries fs.DirEntr
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't list files")
+		return nil, fmt.Errorf("couldn't list files: %w", err)
 	}
 
 	entries = make([]fs.DirEntry, len(sharedFiles))
@@ -173,7 +174,7 @@ func (f *Fs) listFiles(ctx context.Context, directoryID int) (filesList *FilesLi
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't list files")
+		return nil, fmt.Errorf("couldn't list files: %w", err)
 	}
 	for i := range filesList.Items {
 		item := &filesList.Items[i]
@@ -201,7 +202,7 @@ func (f *Fs) listFolders(ctx context.Context, directoryID int) (foldersList *Fol
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't list folders")
+		return nil, fmt.Errorf("couldn't list folders: %w", err)
 	}
 	foldersList.Name = f.opt.Enc.ToStandardName(foldersList.Name)
 	for i := range foldersList.SubFolders {
@@ -295,7 +296,7 @@ func (f *Fs) makeFolder(ctx context.Context, leaf string, folderID int) (respons
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't create folder")
+		return nil, fmt.Errorf("couldn't create folder: %w", err)
 	}
 
 	// fs.Debugf(f, "Created Folder `%s` in id `%s`", name, directoryID)
@@ -322,10 +323,10 @@ func (f *Fs) removeFolder(ctx context.Context, name string, folderID int) (respo
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't remove folder")
+		return nil, fmt.Errorf("couldn't remove folder: %w", err)
 	}
 	if response.Status != "OK" {
-		return nil, errors.Errorf("can't remove folder: %s", response.Message)
+		return nil, fmt.Errorf("can't remove folder: %s", response.Message)
 	}
 
 	// fs.Debugf(f, "Removed Folder with id `%s`", directoryID)
@@ -352,7 +353,7 @@ func (f *Fs) deleteFile(ctx context.Context, url string) (response *GenericOKRes
 	})
 
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't remove file")
+		return nil, fmt.Errorf("couldn't remove file: %w", err)
 	}
 
 	// fs.Debugf(f, "Removed file with url `%s`", url)
@@ -379,7 +380,7 @@ func (f *Fs) moveFile(ctx context.Context, url string, folderID int, rename stri
 	})
 
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't copy file")
+		return nil, fmt.Errorf("couldn't copy file: %w", err)
 	}
 
 	return response, nil
@@ -404,7 +405,7 @@ func (f *Fs) copyFile(ctx context.Context, url string, folderID int, rename stri
 	})
 
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't copy file")
+		return nil, fmt.Errorf("couldn't copy file: %w", err)
 	}
 
 	return response, nil
@@ -432,7 +433,7 @@ func (f *Fs) renameFile(ctx context.Context, url string, newName string) (respon
 	})
 
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't rename file")
+		return nil, fmt.Errorf("couldn't rename file: %w", err)
 	}
 
 	return response, nil
@@ -453,7 +454,7 @@ func (f *Fs) getUploadNode(ctx context.Context) (response *GetUploadNodeResponse
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "didnt got an upload node")
+		return nil, fmt.Errorf("didnt got an upload node: %w", err)
 	}
 
 	// fs.Debugf(f, "Got Upload node")
@@ -497,7 +498,7 @@ func (f *Fs) uploadFile(ctx context.Context, in io.Reader, size int64, fileName,
 	})
 
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't upload file")
+		return nil, fmt.Errorf("couldn't upload file: %w", err)
 	}
 
 	// fs.Debugf(f, "Uploaded File `%s`", fileName)
@@ -531,7 +532,7 @@ func (f *Fs) endUpload(ctx context.Context, uploadID string, nodeurl string) (re
 	})
 
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't finish file upload")
+		return nil, fmt.Errorf("couldn't finish file upload: %w", err)
 	}
 
 	return response, err

backend/fichier/fichier.go

@@ -2,6 +2,7 @@ package fichier
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -9,7 +10,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
 	"github.com/rclone/rclone/fs/config/configmap"
@@ -454,10 +454,10 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	if currentDirectoryID == directoryID {
 		resp, err := f.renameFile(ctx, srcObj.file.URL, leaf)
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't rename file")
+			return nil, fmt.Errorf("couldn't rename file: %w", err)
 		}
 		if resp.Status != "OK" {
-			return nil, errors.Errorf("couldn't rename file: %s", resp.Message)
+			return nil, fmt.Errorf("couldn't rename file: %s", resp.Message)
 		}
 		url = resp.URLs[0].URL
 	} else {
@@ -467,10 +467,10 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 		}
 		resp, err := f.moveFile(ctx, srcObj.file.URL, folderID, leaf)
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't move file")
+			return nil, fmt.Errorf("couldn't move file: %w", err)
 		}
 		if resp.Status != "OK" {
-			return nil, errors.Errorf("couldn't move file: %s", resp.Message)
+			return nil, fmt.Errorf("couldn't move file: %s", resp.Message)
 		}
 		url = resp.URLs[0]
 	}
@@ -503,10 +503,10 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	}
 	resp, err := f.copyFile(ctx, srcObj.file.URL, folderID, leaf)
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't move file")
+		return nil, fmt.Errorf("couldn't move file: %w", err)
 	}
 	if resp.Status != "OK" {
-		return nil, errors.Errorf("couldn't move file: %s", resp.Message)
+		return nil, fmt.Errorf("couldn't move file: %s", resp.Message)
 	}
 
 	file, err := f.readFileInfo(ctx, resp.URLs[0].ToURL)

backend/fichier/object.go

@@ -2,11 +2,12 @@ package fichier
 
 import (
 	"context"
+	"errors"
+	"fmt"
 	"io"
 	"net/http"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/hash"
 	"github.com/rclone/rclone/lib/rest"
@@ -122,7 +123,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	// Delete duplicate after successful upload
 	err = o.Remove(ctx)
 	if err != nil {
-		return errors.Wrap(err, "failed to remove old version")
+		return fmt.Errorf("failed to remove old version: %w", err)
 	}
 
 	// Replace guts of old object with new one

backend/filefabric/filefabric.go

@@ -17,6 +17,7 @@ import (
 	"bytes"
 	"context"
 	"encoding/base64"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -32,7 +33,6 @@ import (
 	"github.com/rclone/rclone/lib/encoder"
 	"github.com/rclone/rclone/lib/random"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/filefabric/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
@@ -267,7 +267,7 @@ func (f *Fs) readMetaDataForPath(ctx context.Context, rootID string, path string
 		"pid":  rootID,
 	}, &resp, nil)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to check path exists")
+		return nil, fmt.Errorf("failed to check path exists: %w", err)
 	}
 	if resp.Exists != "y" {
 		return nil, fs.ErrorObjectNotFound
@@ -308,7 +308,7 @@ func (f *Fs) getApplianceInfo(ctx context.Context) error {
 		"token": "*",
 	}, &applianceInfo, nil)
 	if err != nil {
-		return errors.Wrap(err, "failed to read appliance version")
+		return fmt.Errorf("failed to read appliance version: %w", err)
 	}
 	f.opt.Version = applianceInfo.SoftwareVersionLabel
 	f.m.Set("version", f.opt.Version)
@@ -349,7 +349,7 @@ func (f *Fs) getToken(ctx context.Context) (token string, err error) {
 		"authtoken": f.opt.PermanentToken,
 	}, &info, nil)
 	if err != nil {
-		return "", errors.Wrap(err, "failed to get session token")
+		return "", fmt.Errorf("failed to get session token: %w", err)
 	}
 	refreshed = true
 	now = now.Add(tokenLifeTime)
@@ -562,7 +562,7 @@ func (f *Fs) CreateDir(ctx context.Context, pathID, leaf string) (newID string,
 		"fi_name": f.opt.Enc.FromStandardName(leaf),
 	}, &info, nil)
 	if err != nil {
-		return "", errors.Wrap(err, "failed to create directory")
+		return "", fmt.Errorf("failed to create directory: %w", err)
 	}
 	// fmt.Printf("...Id %q\n", *info.Id)
 	return info.Item.ID, nil
@@ -595,7 +595,7 @@ OUTER:
 		var info api.GetFolderContentsResponse
 		_, err = f.rpc(ctx, "getFolderContents", p, &info, nil)
 		if err != nil {
-			return false, errors.Wrap(err, "failed to list directory")
+			return false, fmt.Errorf("failed to list directory: %w", err)
 		}
 		for i := range info.Items {
 			item := &info.Items[i]
@@ -726,7 +726,7 @@ func (f *Fs) deleteObject(ctx context.Context, id string) (err error) {
 		"completedeletion": "n",
 	}, &info, nil)
 	if err != nil {
-		return errors.Wrap(err, "failed to delete file")
+		return fmt.Errorf("failed to delete file: %w", err)
 	}
 	return nil
 }
@@ -763,7 +763,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
 	}, &info, nil)
 	f.dirCache.FlushDir(dir)
 	if err != nil {
-		return errors.Wrap(err, "failed to remove directory")
+		return fmt.Errorf("failed to remove directory: %w", err)
 	}
 	return nil
 }
@@ -825,7 +825,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	}
 	_, err = f.rpc(ctx, "doCopyFile", p, &info, nil)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to copy file")
+		return nil, fmt.Errorf("failed to copy file: %w", err)
 	}
 	err = dstObj.setMetaData(&info.Item)
 	if err != nil {
@@ -857,7 +857,7 @@ func (f *Fs) waitForBackgroundTask(ctx context.Context, taskID api.String) (err
 			"taskid": taskID,
 		}, &info, nil)
 		if err != nil {
-			return errors.Wrapf(err, "failed to wait for task %s to complete", taskID)
+			return fmt.Errorf("failed to wait for task %s to complete: %w", taskID, err)
 		}
 		if len(info.Tasks) == 0 {
 			// task has finished
@@ -890,7 +890,7 @@ func (f *Fs) renameLeaf(ctx context.Context, isDir bool, id string, newLeaf stri
 		"fi_name": newLeaf,
 	}, &info, nil)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to rename leaf")
+		return nil, fmt.Errorf("failed to rename leaf: %w", err)
 	}
 	err = f.waitForBackgroundTask(ctx, info.Status.TaskID)
 	if err != nil {
@@ -934,7 +934,7 @@ func (f *Fs) move(ctx context.Context, isDir bool, id, oldLeaf, newLeaf, oldDire
 			"dir_id": newDirectoryID,
 		}, &info, nil)
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to move file to new directory")
+			return nil, fmt.Errorf("failed to move file to new directory: %w", err)
 		}
 		item = &info.Item
 		err = f.waitForBackgroundTask(ctx, info.Status.TaskID)
@@ -1037,7 +1037,7 @@ func (f *Fs) CleanUp(ctx context.Context) (err error) {
 	var info api.EmptyResponse
 	_, err = f.rpc(ctx, "emptyTrashInBackground", params{}, &info, nil)
 	if err != nil {
-		return errors.Wrap(err, "failed to empty trash")
+		return fmt.Errorf("failed to empty trash: %w", err)
 	}
 	return nil
 }
@@ -1164,7 +1164,7 @@ func (o *Object) modifyFile(ctx context.Context, keyValues [][2]string) error {
 		"data":  data.String(),
 	}, &info, nil)
 	if err != nil {
-		return errors.Wrap(err, "failed to update metadata")
+		return fmt.Errorf("failed to update metadata: %w", err)
 	}
 	return o.setMetaData(&info.Item)
 }
@@ -1247,7 +1247,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	}
 	_, err = o.fs.rpc(ctx, "doInitUpload", p, &upload, nil)
 	if err != nil {
-		return errors.Wrap(err, "failed to initialize upload")
+		return fmt.Errorf("failed to initialize upload: %w", err)
 	}
 
 	// Cancel the upload if aborted or it fails
@@ -1290,13 +1290,13 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		return o.fs.shouldRetry(ctx, resp, err, nil, try)
 	})
 	if err != nil {
-		return errors.Wrap(err, "failed to upload")
+		return fmt.Errorf("failed to upload: %w", err)
 	}
 	if uploader.Success != "y" {
-		return errors.Errorf("upload failed")
+		return fmt.Errorf("upload failed")
 	}
 	if size > 0 && uploader.FileSize != size {
-		return errors.Errorf("upload failed: size mismatch: want %d got %d", size, uploader.FileSize)
+		return fmt.Errorf("upload failed: size mismatch: want %d got %d", size, uploader.FileSize)
 	}
 
 	// Now finalize the file
@@ -1308,7 +1308,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	}
 	_, err = o.fs.rpc(ctx, "doCompleteUpload", p, &finalize, nil)
 	if err != nil {
-		return errors.Wrap(err, "failed to finalize upload")
+		return fmt.Errorf("failed to finalize upload: %w", err)
 	}
 	finalized = true
 

backend/ftp/ftp.go

@@ -4,6 +4,8 @@ package ftp
 import (
 	"context"
 	"crypto/tls"
+	"errors"
+	"fmt"
 	"io"
 	"net"
 	"net/textproto"
@@ -14,7 +16,6 @@ import (
 	"time"
 
 	"github.com/jlaffaye/ftp"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/accounting"
 	"github.com/rclone/rclone/fs/config"
@@ -349,7 +350,7 @@ func (f *Fs) ftpConnection(ctx context.Context) (c *ftp.ServerConn, err error) {
 		return false, nil
 	})
 	if err != nil {
-		err = errors.Wrapf(err, "failed to make FTP connection to %q", f.dialAddr)
+		err = fmt.Errorf("failed to make FTP connection to %q: %w", f.dialAddr, err)
 	}
 	return c, err
 }
@@ -396,8 +397,8 @@ func (f *Fs) putFtpConnection(pc **ftp.ServerConn, err error) {
 	*pc = nil
 	if err != nil {
 		// If not a regular FTP error code then check the connection
-		_, isRegularError := errors.Cause(err).(*textproto.Error)
-		if !isRegularError {
+		var tpErr *textproto.Error
+		if !errors.As(err, &tpErr) {
 			nopErr := c.NoOp()
 			if nopErr != nil {
 				fs.Debugf(f, "Connection failed, closing: %v", nopErr)
@@ -445,7 +446,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (ff fs.Fs
 	}
 	pass, err := obscure.Reveal(opt.Pass)
 	if err != nil {
-		return nil, errors.Wrap(err, "NewFS decrypt password")
+		return nil, fmt.Errorf("NewFS decrypt password: %w", err)
 	}
 	user := opt.User
 	if user == "" {
@@ -502,7 +503,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (ff fs.Fs
 	// Make a connection and pool it to return errors early
 	c, err := f.getFtpConnection(ctx)
 	if err != nil {
-		return nil, errors.Wrap(err, "NewFs")
+		return nil, fmt.Errorf("NewFs: %w", err)
 	}
 	f.fGetTime = c.IsGetTimeSupported()
 	f.fSetTime = c.IsSetTimeSupported()
@@ -520,7 +521,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (ff fs.Fs
 		}
 		_, err := f.NewObject(ctx, remote)
 		if err != nil {
-			if err == fs.ErrorObjectNotFound || errors.Cause(err) == fs.ErrorNotAFile {
+			if err == fs.ErrorObjectNotFound || errors.Is(err, fs.ErrorNotAFile) {
 				// File doesn't exist so return old f
 				f.root = root
 				return f, nil
@@ -599,7 +600,7 @@ func (f *Fs) findItem(ctx context.Context, remote string) (entry *ftp.Entry, err
 
 	c, err := f.getFtpConnection(ctx)
 	if err != nil {
-		return nil, errors.Wrap(err, "findItem")
+		return nil, fmt.Errorf("findItem: %w", err)
 	}
 	files, err := c.List(f.dirFromStandardPath(dir))
 	f.putFtpConnection(&c, err)
@@ -643,7 +644,7 @@ func (f *Fs) NewObject(ctx context.Context, remote string) (o fs.Object, err err
 func (f *Fs) dirExists(ctx context.Context, remote string) (exists bool, err error) {
 	entry, err := f.findItem(ctx, remote)
 	if err != nil {
-		return false, errors.Wrap(err, "dirExists")
+		return false, fmt.Errorf("dirExists: %w", err)
 	}
 	if entry != nil && entry.Type == ftp.EntryTypeFolder {
 		return true, nil
@@ -664,7 +665,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 	// defer log.Trace(dir, "dir=%q", dir)("entries=%v, err=%v", &entries, &err)
 	c, err := f.getFtpConnection(ctx)
 	if err != nil {
-		return nil, errors.Wrap(err, "list")
+		return nil, fmt.Errorf("list: %w", err)
 	}
 
 	var listErr error
@@ -702,7 +703,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 	if len(files) == 0 {
 		exists, err := f.dirExists(ctx, dir)
 		if err != nil {
-			return nil, errors.Wrap(err, "list")
+			return nil, fmt.Errorf("list: %w", err)
 		}
 		if !exists {
 			return nil, fs.ErrorDirNotFound
@@ -766,7 +767,7 @@ func (f *Fs) Put(ctx context.Context, in io.Reader, src fs.ObjectInfo, options .
 	// fs.Debugf(f, "Trying to put file %s", src.Remote())
 	err := f.mkParentDir(ctx, src.Remote())
 	if err != nil {
-		return nil, errors.Wrap(err, "Put mkParentDir failed")
+		return nil, fmt.Errorf("Put mkParentDir failed: %w", err)
 	}
 	o := &Object{
 		fs:     f,
@@ -789,7 +790,7 @@ func (f *Fs) getInfo(ctx context.Context, remote string) (fi *FileInfo, err erro
 
 	c, err := f.getFtpConnection(ctx)
 	if err != nil {
-		return nil, errors.Wrap(err, "getInfo")
+		return nil, fmt.Errorf("getInfo: %w", err)
 	}
 	files, err := c.List(f.dirFromStandardPath(dir))
 	f.putFtpConnection(&c, err)
@@ -827,7 +828,7 @@ func (f *Fs) mkdir(ctx context.Context, abspath string) error {
 		}
 		return fs.ErrorIsFile
 	} else if err != fs.ErrorObjectNotFound {
-		return errors.Wrapf(err, "mkdir %q failed", abspath)
+		return fmt.Errorf("mkdir %q failed: %w", abspath, err)
 	}
 	parent := path.Dir(abspath)
 	err = f.mkdir(ctx, parent)
@@ -836,7 +837,7 @@ func (f *Fs) mkdir(ctx context.Context, abspath string) error {
 	}
 	c, connErr := f.getFtpConnection(ctx)
 	if connErr != nil {
-		return errors.Wrap(connErr, "mkdir")
+		return fmt.Errorf("mkdir: %w", connErr)
 	}
 	err = c.MakeDir(f.dirFromStandardPath(abspath))
 	f.putFtpConnection(&c, err)
@@ -872,7 +873,7 @@ func (f *Fs) Mkdir(ctx context.Context, dir string) (err error) {
 func (f *Fs) Rmdir(ctx context.Context, dir string) error {
 	c, err := f.getFtpConnection(ctx)
 	if err != nil {
-		return errors.Wrap(translateErrorFile(err), "Rmdir")
+		return fmt.Errorf("Rmdir: %w", translateErrorFile(err))
 	}
 	err = c.RemoveDir(f.dirFromStandardPath(path.Join(f.root, dir)))
 	f.putFtpConnection(&c, err)
@@ -888,11 +889,11 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	}
 	err := f.mkParentDir(ctx, remote)
 	if err != nil {
-		return nil, errors.Wrap(err, "Move mkParentDir failed")
+		return nil, fmt.Errorf("Move mkParentDir failed: %w", err)
 	}
 	c, err := f.getFtpConnection(ctx)
 	if err != nil {
-		return nil, errors.Wrap(err, "Move")
+		return nil, fmt.Errorf("Move: %w", err)
 	}
 	err = c.Rename(
 		f.opt.Enc.FromStandardPath(path.Join(srcObj.fs.root, srcObj.remote)),
@@ -900,11 +901,11 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	)
 	f.putFtpConnection(&c, err)
 	if err != nil {
-		return nil, errors.Wrap(err, "Move Rename failed")
+		return nil, fmt.Errorf("Move Rename failed: %w", err)
 	}
 	dstObj, err := f.NewObject(ctx, remote)
 	if err != nil {
-		return nil, errors.Wrap(err, "Move NewObject failed")
+		return nil, fmt.Errorf("Move NewObject failed: %w", err)
 	}
 	return dstObj, nil
 }
@@ -934,19 +935,19 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 		}
 		return fs.ErrorIsFile
 	} else if err != fs.ErrorObjectNotFound {
-		return errors.Wrapf(err, "DirMove getInfo failed")
+		return fmt.Errorf("DirMove getInfo failed: %w", err)
 	}
 
 	// Make sure the parent directory exists
 	err = f.mkdir(ctx, path.Dir(dstPath))
 	if err != nil {
-		return errors.Wrap(err, "DirMove mkParentDir dst failed")
+		return fmt.Errorf("DirMove mkParentDir dst failed: %w", err)
 	}
 
 	// Do the move
 	c, err := f.getFtpConnection(ctx)
 	if err != nil {
-		return errors.Wrap(err, "DirMove")
+		return fmt.Errorf("DirMove: %w", err)
 	}
 	err = c.Rename(
 		f.dirFromStandardPath(srcPath),
@@ -954,7 +955,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 	)
 	f.putFtpConnection(&c, err)
 	if err != nil {
-		return errors.Wrapf(err, "DirMove Rename(%q,%q) failed", srcPath, dstPath)
+		return fmt.Errorf("DirMove Rename(%q,%q) failed: %w", srcPath, dstPath, err)
 	}
 	return nil
 }
@@ -1111,12 +1112,12 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (rc io.Read
 	}
 	c, err := o.fs.getFtpConnection(ctx)
 	if err != nil {
-		return nil, errors.Wrap(err, "open")
+		return nil, fmt.Errorf("open: %w", err)
 	}
 	fd, err := c.RetrFrom(o.fs.opt.Enc.FromStandardPath(path), uint64(offset))
 	if err != nil {
 		o.fs.putFtpConnection(&c, err)
-		return nil, errors.Wrap(err, "open")
+		return nil, fmt.Errorf("open: %w", err)
 	}
 	rc = &ftpReadCloser{rc: readers.NewLimitedReadCloser(fd, limit), c: c, f: o.fs}
 	return rc, nil
@@ -1146,7 +1147,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	}
 	c, err := o.fs.getFtpConnection(ctx)
 	if err != nil {
-		return errors.Wrap(err, "Update")
+		return fmt.Errorf("Update: %w", err)
 	}
 	err = c.Stor(o.fs.opt.Enc.FromStandardPath(path), in)
 	// Ignore error 250 here - send by some servers
@@ -1164,15 +1165,15 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		// recycle connection in advance to let remove() find free token
 		o.fs.putFtpConnection(nil, err)
 		remove()
-		return errors.Wrap(err, "update stor")
+		return fmt.Errorf("update stor: %w", err)
 	}
 	o.fs.putFtpConnection(&c, nil)
 	if err = o.SetModTime(ctx, src.ModTime(ctx)); err != nil {
-		return errors.Wrap(err, "SetModTime")
+		return fmt.Errorf("SetModTime: %w", err)
 	}
 	o.info, err = o.fs.getInfo(ctx, path)
 	if err != nil {
-		return errors.Wrap(err, "update getinfo")
+		return fmt.Errorf("update getinfo: %w", err)
 	}
 	return nil
 }
@@ -1191,7 +1192,7 @@ func (o *Object) Remove(ctx context.Context) (err error) {
 	} else {
 		c, err := o.fs.getFtpConnection(ctx)
 		if err != nil {
-			return errors.Wrap(err, "Remove")
+			return fmt.Errorf("Remove: %w", err)
 		}
 		err = c.Delete(o.fs.opt.Enc.FromStandardPath(path))
 		o.fs.putFtpConnection(&c, err)

backend/googlecloudstorage/googlecloudstorage.go

@@ -16,6 +16,7 @@ import (
 	"context"
 	"encoding/base64"
 	"encoding/hex"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -25,7 +26,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
 	"github.com/rclone/rclone/fs/config/configmap"
@@ -375,7 +375,7 @@ func (o *Object) split() (bucket, bucketPath string) {
 func getServiceAccountClient(ctx context.Context, credentialsData []byte) (*http.Client, error) {
 	conf, err := google.JWTConfigFromJSON(credentialsData, storageConfig.Scopes...)
 	if err != nil {
-		return nil, errors.Wrap(err, "error processing credentials")
+		return nil, fmt.Errorf("error processing credentials: %w", err)
 	}
 	ctxWithSpecialClient := oauthutil.Context(ctx, fshttp.NewClient(ctx))
 	return oauth2.NewClient(ctxWithSpecialClient, conf.TokenSource(ctxWithSpecialClient)), nil
@@ -408,7 +408,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	if opt.ServiceAccountCredentials == "" && opt.ServiceAccountFile != "" {
 		loadedCreds, err := ioutil.ReadFile(env.ShellExpand(opt.ServiceAccountFile))
 		if err != nil {
-			return nil, errors.Wrap(err, "error opening service account credentials file")
+			return nil, fmt.Errorf("error opening service account credentials file: %w", err)
 		}
 		opt.ServiceAccountCredentials = string(loadedCreds)
 	}
@@ -417,7 +417,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	} else if opt.ServiceAccountCredentials != "" {
 		oAuthClient, err = getServiceAccountClient(ctx, []byte(opt.ServiceAccountCredentials))
 		if err != nil {
-			return nil, errors.Wrap(err, "failed configuring Google Cloud Storage Service Account")
+			return nil, fmt.Errorf("failed configuring Google Cloud Storage Service Account: %w", err)
 		}
 	} else {
 		oAuthClient, _, err = oauthutil.NewClient(ctx, name, m, storageConfig)
@@ -425,7 +425,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 			ctx := context.Background()
 			oAuthClient, err = google.DefaultClient(ctx, storage.DevstorageFullControlScope)
 			if err != nil {
-				return nil, errors.Wrap(err, "failed to configure Google Cloud Storage")
+				return nil, fmt.Errorf("failed to configure Google Cloud Storage: %w", err)
 			}
 		}
 	}
@@ -449,7 +449,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	f.client = oAuthClient
 	f.svc, err = storage.New(f.client)
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't create Google Cloud Storage client")
+		return nil, fmt.Errorf("couldn't create Google Cloud Storage client: %w", err)
 	}
 
 	if f.rootBucket != "" && f.rootDirectory != "" {
@@ -759,10 +759,10 @@ func (f *Fs) makeBucket(ctx context.Context, bucket string) (err error) {
 			return nil
 		} else if gErr, ok := err.(*googleapi.Error); ok {
 			if gErr.Code != http.StatusNotFound {
-				return errors.Wrap(err, "failed to get bucket")
+				return fmt.Errorf("failed to get bucket: %w", err)
 			}
 		} else {
-			return errors.Wrap(err, "failed to get bucket")
+			return fmt.Errorf("failed to get bucket: %w", err)
 		}
 
 		if f.opt.ProjectNumber == "" {
@@ -1065,7 +1065,7 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 	_, isRanging := req.Header["Range"]
 	if !(res.StatusCode == http.StatusOK || (isRanging && res.StatusCode == http.StatusPartialContent)) {
 		_ = res.Body.Close() // ignore error
-		return nil, errors.Errorf("bad response: %d: %s", res.StatusCode, res.Status)
+		return nil, fmt.Errorf("bad response: %d: %s", res.StatusCode, res.Status)
 	}
 	return res.Body, nil
 }

backend/googlephotos/googlephotos.go

@@ -6,6 +6,7 @@ package googlephotos
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -17,7 +18,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/googlephotos/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
@@ -85,7 +85,7 @@ func init() {
 			opt := new(Options)
 			err := configstruct.Set(m, opt)
 			if err != nil {
-				return nil, errors.Wrap(err, "couldn't parse config into struct")
+				return nil, fmt.Errorf("couldn't parse config into struct: %w", err)
 			}
 
 			switch config.State {
@@ -292,7 +292,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	baseClient := fshttp.NewClient(ctx)
 	oAuthClient, ts, err := oauthutil.NewClientWithBaseClient(ctx, name, m, oauthConfig, baseClient)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to configure Box")
+		return nil, fmt.Errorf("failed to configure Box: %w", err)
 	}
 
 	root = strings.Trim(path.Clean(root), "/")
@@ -345,13 +345,13 @@ func (f *Fs) fetchEndpoint(ctx context.Context, name string) (endpoint string, e
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return "", errors.Wrap(err, "couldn't read openID config")
+		return "", fmt.Errorf("couldn't read openID config: %w", err)
 	}
 
 	// Find userinfo endpoint
 	endpoint, ok := openIDconfig[name].(string)
 	if !ok {
-		return "", errors.Errorf("couldn't find %q from openID config", name)
+		return "", fmt.Errorf("couldn't find %q from openID config", name)
 	}
 
 	return endpoint, nil
@@ -374,7 +374,7 @@ func (f *Fs) UserInfo(ctx context.Context) (userInfo map[string]string, err erro
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't read user info")
+		return nil, fmt.Errorf("couldn't read user info: %w", err)
 	}
 	return userInfo, nil
 }
@@ -405,7 +405,7 @@ func (f *Fs) Disconnect(ctx context.Context) (err error) {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "couldn't revoke token")
+		return fmt.Errorf("couldn't revoke token: %w", err)
 	}
 	fs.Infof(f, "res = %+v", res)
 	return nil
@@ -492,7 +492,7 @@ func (f *Fs) listAlbums(ctx context.Context, shared bool) (all *albums, err erro
 			return shouldRetry(ctx, resp, err)
 		})
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't list albums")
+			return nil, fmt.Errorf("couldn't list albums: %w", err)
 		}
 		newAlbums := result.Albums
 		if shared {
@@ -549,7 +549,7 @@ func (f *Fs) list(ctx context.Context, filter api.SearchFilter, fn listFn) (err
 			return shouldRetry(ctx, resp, err)
 		})
 		if err != nil {
-			return errors.Wrap(err, "couldn't list files")
+			return fmt.Errorf("couldn't list files: %w", err)
 		}
 		items := result.MediaItems
 		if len(items) > 0 && items[0].ID == lastID {
@@ -693,7 +693,7 @@ func (f *Fs) createAlbum(ctx context.Context, albumTitle string) (album *api.Alb
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't create album")
+		return nil, fmt.Errorf("couldn't create album: %w", err)
 	}
 	f.albums[false].add(&result)
 	return &result, nil
@@ -879,7 +879,7 @@ func (o *Object) readMetaData(ctx context.Context) (err error) {
 			return shouldRetry(ctx, resp, err)
 		})
 		if err != nil {
-			return errors.Wrap(err, "couldn't get media item")
+			return fmt.Errorf("couldn't get media item: %w", err)
 		}
 		o.setMetaData(&item)
 		return nil
@@ -1014,7 +1014,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "couldn't upload file")
+		return fmt.Errorf("couldn't upload file: %w", err)
 	}
 	uploadToken := strings.TrimSpace(string(token))
 	if uploadToken == "" {
@@ -1042,14 +1042,14 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "failed to create media item")
+		return fmt.Errorf("failed to create media item: %w", err)
 	}
 	if len(result.NewMediaItemResults) != 1 {
 		return errors.New("bad response to BatchCreate wrong number of items")
 	}
 	mediaItemResult := result.NewMediaItemResults[0]
 	if mediaItemResult.Status.Code != 0 {
-		return errors.Errorf("upload failed: %s (%d)", mediaItemResult.Status.Message, mediaItemResult.Status.Code)
+		return fmt.Errorf("upload failed: %s (%d)", mediaItemResult.Status.Message, mediaItemResult.Status.Code)
 	}
 	o.setMetaData(&mediaItemResult.MediaItem)
 
@@ -1071,7 +1071,7 @@ func (o *Object) Remove(ctx context.Context) (err error) {
 	albumTitle, fileName := match[1], match[2]
 	album, ok := o.fs.albums[false].get(albumTitle)
 	if !ok {
-		return errors.Errorf("couldn't file %q in album %q for delete", fileName, albumTitle)
+		return fmt.Errorf("couldn't file %q in album %q for delete", fileName, albumTitle)
 	}
 	opts := rest.Opts{
 		Method:     "POST",
@@ -1087,7 +1087,7 @@ func (o *Object) Remove(ctx context.Context) (err error) {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "couldn't delete item from album")
+		return fmt.Errorf("couldn't delete item from album: %w", err)
 	}
 	return nil
 }

backend/googlephotos/pattern.go

@@ -11,7 +11,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/googlephotos/api"
 	"github.com/rclone/rclone/fs"
 )
@@ -270,7 +269,7 @@ func days(ctx context.Context, f lister, prefix string, match []string) (entries
 	year := match[1]
 	current, err := time.Parse("2006", year)
 	if err != nil {
-		return nil, errors.Errorf("bad year %q", match[1])
+		return nil, fmt.Errorf("bad year %q", match[1])
 	}
 	currentYear := current.Year()
 	for current.Year() == currentYear {
@@ -284,7 +283,7 @@ func days(ctx context.Context, f lister, prefix string, match []string) (entries
 func yearMonthDayFilter(ctx context.Context, f lister, match []string) (sf api.SearchFilter, err error) {
 	year, err := strconv.Atoi(match[1])
 	if err != nil || year < 1000 || year > 3000 {
-		return sf, errors.Errorf("bad year %q", match[1])
+		return sf, fmt.Errorf("bad year %q", match[1])
 	}
 	sf = api.SearchFilter{
 		Filters: &api.Filters{
@@ -300,14 +299,14 @@ func yearMonthDayFilter(ctx context.Context, f lister, match []string) (sf api.S
 	if len(match) >= 3 {
 		month, err := strconv.Atoi(match[2])
 		if err != nil || month < 1 || month > 12 {
-			return sf, errors.Errorf("bad month %q", match[2])
+			return sf, fmt.Errorf("bad month %q", match[2])
 		}
 		sf.Filters.DateFilter.Dates[0].Month = month
 	}
 	if len(match) >= 4 {
 		day, err := strconv.Atoi(match[3])
 		if err != nil || day < 1 || day > 31 {
-			return sf, errors.Errorf("bad day %q", match[3])
+			return sf, fmt.Errorf("bad day %q", match[3])
 		}
 		sf.Filters.DateFilter.Dates[0].Day = day
 	}

backend/hasher/commands.go

@@ -2,9 +2,10 @@ package hasher
 
 import (
 	"context"
+	"errors"
+	"fmt"
 	"path"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/accounting"
 	"github.com/rclone/rclone/fs/cache"
@@ -118,18 +119,18 @@ func (f *Fs) dbImport(ctx context.Context, hashName, sumRemote string, sticky bo
 	case fs.ErrorIsFile:
 		// ok
 	case nil:
-		return errors.Errorf("not a file: %s", sumRemote)
+		return fmt.Errorf("not a file: %s", sumRemote)
 	default:
 		return err
 	}
 
 	sumObj, err := sumFs.NewObject(ctx, path.Base(sumPath))
 	if err != nil {
-		return errors.Wrap(err, "cannot open sum file")
+		return fmt.Errorf("cannot open sum file: %w", err)
 	}
 	hashes, err := operations.ParseSumFile(ctx, sumObj)
 	if err != nil {
-		return errors.Wrap(err, "failed to parse sum file")
+		return fmt.Errorf("failed to parse sum file: %w", err)
 	}
 
 	if sticky {

backend/hasher/hasher.go

@@ -4,6 +4,7 @@ package hasher
 import (
 	"context"
 	"encoding/gob"
+	"errors"
 	"fmt"
 	"io"
 	"path"
@@ -11,7 +12,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/cache"
 	"github.com/rclone/rclone/fs/config/configmap"
@@ -102,7 +102,7 @@ func NewFs(ctx context.Context, fsname, rpath string, cmap configmap.Mapper) (fs
 	remotePath := fspath.JoinRootPath(opt.Remote, rpath)
 	baseFs, err := cache.Get(ctx, remotePath)
 	if err != nil && err != fs.ErrorIsFile {
-		return nil, errors.Wrapf(err, "failed to derive base remote %q", opt.Remote)
+		return nil, fmt.Errorf("failed to derive base remote %q: %w", opt.Remote, err)
 	}
 
 	f := &Fs{
@@ -127,7 +127,7 @@ func NewFs(ctx context.Context, fsname, rpath string, cmap configmap.Mapper) (fs
 	for _, hashName := range opt.Hashes {
 		var ht hash.Type
 		if err := ht.Set(hashName); err != nil {
-			return nil, errors.Errorf("invalid token %q in hash string %q", hashName, opt.Hashes.String())
+			return nil, fmt.Errorf("invalid token %q in hash string %q", hashName, opt.Hashes.String())
 		}
 		if !f.slowHashes.Contains(ht) {
 			f.autoHashes.Add(ht)

backend/hasher/kv.go

@@ -4,11 +4,11 @@ import (
 	"bytes"
 	"context"
 	"encoding/gob"
+	"errors"
 	"fmt"
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/hash"
 	"github.com/rclone/rclone/fs/operations"
@@ -199,10 +199,10 @@ func (op *kvPut) Do(ctx context.Context, b kv.Bucket) (err error) {
 		r.Hashes[hashType] = hashVal
 	}
 	if data, err = r.encode(op.key); err != nil {
-		return errors.Wrap(err, "marshal failed")
+		return fmt.Errorf("marshal failed: %w", err)
 	}
 	if err = b.Put([]byte(op.key), data); err != nil {
-		return errors.Wrap(err, "put failed")
+		return fmt.Errorf("put failed: %w", err)
 	}
 	return err
 }

backend/hasher/object.go

@@ -2,13 +2,13 @@ package hasher
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
 	"path"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/hash"
 	"github.com/rclone/rclone/fs/operations"

backend/http/http.go

@@ -6,6 +6,8 @@ package http
 
 import (
 	"context"
+	"errors"
+	"fmt"
 	"io"
 	"mime"
 	"net/http"
@@ -16,7 +18,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config/configmap"
 	"github.com/rclone/rclone/fs/config/configstruct"
@@ -132,7 +133,7 @@ func statusError(res *http.Response, err error) error {
 	}
 	if res.StatusCode < 200 || res.StatusCode > 299 {
 		_ = res.Body.Close()
-		return errors.Errorf("HTTP Error %d: %s", res.StatusCode, res.Status)
+		return fmt.Errorf("HTTP Error %d: %s", res.StatusCode, res.Status)
 	}
 	return nil
 }
@@ -377,15 +378,15 @@ func (f *Fs) readDir(ctx context.Context, dir string) (names []string, err error
 	URL := f.url(dir)
 	u, err := url.Parse(URL)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to readDir")
+		return nil, fmt.Errorf("failed to readDir: %w", err)
 	}
 	if !strings.HasSuffix(URL, "/") {
-		return nil, errors.Errorf("internal error: readDir URL %q didn't end in /", URL)
+		return nil, fmt.Errorf("internal error: readDir URL %q didn't end in /", URL)
 	}
 	// Do the request
 	req, err := http.NewRequestWithContext(ctx, "GET", URL, nil)
 	if err != nil {
-		return nil, errors.Wrap(err, "readDir failed")
+		return nil, fmt.Errorf("readDir failed: %w", err)
 	}
 	f.addHeaders(req)
 	res, err := f.httpClient.Do(req)
@@ -397,7 +398,7 @@ func (f *Fs) readDir(ctx context.Context, dir string) (names []string, err error
 	}
 	err = statusError(res, err)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to readDir")
+		return nil, fmt.Errorf("failed to readDir: %w", err)
 	}
 
 	contentType := strings.SplitN(res.Header.Get("Content-Type"), ";", 2)[0]
@@ -405,10 +406,10 @@ func (f *Fs) readDir(ctx context.Context, dir string) (names []string, err error
 	case "text/html":
 		names, err = parse(u, res.Body)
 		if err != nil {
-			return nil, errors.Wrap(err, "readDir")
+			return nil, fmt.Errorf("readDir: %w", err)
 		}
 	default:
-		return nil, errors.Errorf("Can't parse content type %q", contentType)
+		return nil, fmt.Errorf("Can't parse content type %q", contentType)
 	}
 	return names, nil
 }
@@ -428,7 +429,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 	}
 	names, err := f.readDir(ctx, dir)
 	if err != nil {
-		return nil, errors.Wrapf(err, "error listing %q", dir)
+		return nil, fmt.Errorf("error listing %q: %w", dir, err)
 	}
 	var (
 		entriesMu sync.Mutex // to protect entries
@@ -540,7 +541,7 @@ func (o *Object) stat(ctx context.Context) error {
 	url := o.url()
 	req, err := http.NewRequestWithContext(ctx, "HEAD", url, nil)
 	if err != nil {
-		return errors.Wrap(err, "stat failed")
+		return fmt.Errorf("stat failed: %w", err)
 	}
 	o.fs.addHeaders(req)
 	res, err := o.fs.httpClient.Do(req)
@@ -549,7 +550,7 @@ func (o *Object) stat(ctx context.Context) error {
 	}
 	err = statusError(res, err)
 	if err != nil {
-		return errors.Wrap(err, "failed to stat")
+		return fmt.Errorf("failed to stat: %w", err)
 	}
 	t, err := http.ParseTime(res.Header.Get("Last-Modified"))
 	if err != nil {
@@ -562,7 +563,7 @@ func (o *Object) stat(ctx context.Context) error {
 	if o.fs.opt.NoSlash {
 		mediaType, _, err := mime.ParseMediaType(o.contentType)
 		if err != nil {
-			return errors.Wrapf(err, "failed to parse Content-Type: %q", o.contentType)
+			return fmt.Errorf("failed to parse Content-Type: %q: %w", o.contentType, err)
 		}
 		if mediaType == "text/html" {
 			return fs.ErrorNotAFile
@@ -588,7 +589,7 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 	url := o.url()
 	req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
 	if err != nil {
-		return nil, errors.Wrap(err, "Open failed")
+		return nil, fmt.Errorf("Open failed: %w", err)
 	}
 
 	// Add optional headers
@@ -601,7 +602,7 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 	res, err := o.fs.httpClient.Do(req)
 	err = statusError(res, err)
 	if err != nil {
-		return nil, errors.Wrap(err, "Open failed")
+		return nil, fmt.Errorf("Open failed: %w", err)
 	}
 	return res.Body, nil
 }

backend/hubic/hubic.go

@@ -9,6 +9,7 @@ package hubic
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io/ioutil"
 	"net/http"
@@ -16,7 +17,6 @@ import (
 	"time"
 
 	swiftLib "github.com/ncw/swift/v2"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/swift"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config/configmap"
@@ -120,7 +120,7 @@ func (f *Fs) getCredentials(ctx context.Context) (err error) {
 	if resp.StatusCode < 200 || resp.StatusCode > 299 {
 		body, _ := ioutil.ReadAll(resp.Body)
 		bodyStr := strings.TrimSpace(strings.Replace(string(body), "\n", " ", -1))
-		return errors.Errorf("failed to get credentials: %s: %s", resp.Status, bodyStr)
+		return fmt.Errorf("failed to get credentials: %s: %s", resp.Status, bodyStr)
 	}
 	decoder := json.NewDecoder(resp.Body)
 	var result credentials
@@ -146,7 +146,7 @@ func (f *Fs) getCredentials(ctx context.Context) (err error) {
 func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, error) {
 	client, _, err := oauthutil.NewClient(ctx, name, m, oauthConfig)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to configure Hubic")
+		return nil, fmt.Errorf("failed to configure Hubic: %w", err)
 	}
 
 	f := &Fs{
@@ -163,7 +163,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	}
 	err = c.Authenticate(ctx)
 	if err != nil {
-		return nil, errors.Wrap(err, "error authenticating swift connection")
+		return nil, fmt.Errorf("error authenticating swift connection: %w", err)
 	}
 
 	// Parse config into swift.Options struct

backend/jottacloud/api/types.go

@@ -2,10 +2,9 @@ package api
 
 import (
 	"encoding/xml"
+	"errors"
 	"fmt"
 	"time"
-
-	"github.com/pkg/errors"
 )
 
 const (

backend/jottacloud/jottacloud.go

@@ -7,6 +7,7 @@ import (
 	"encoding/base64"
 	"encoding/hex"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -19,7 +20,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/jottacloud/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/accounting"
@@ -146,12 +146,12 @@ func Config(ctx context.Context, name string, m configmap.Mapper, config fs.Conf
 		srv := rest.NewClient(fshttp.NewClient(ctx))
 		token, tokenEndpoint, err := doTokenAuth(ctx, srv, loginToken)
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to get oauth token")
+			return nil, fmt.Errorf("failed to get oauth token: %w", err)
 		}
 		m.Set(configTokenURL, tokenEndpoint)
 		err = oauthutil.PutToken(name, m, &token, true)
 		if err != nil {
-			return nil, errors.Wrap(err, "error while saving token")
+			return nil, fmt.Errorf("error while saving token: %w", err)
 		}
 		return fs.ConfigGoto("choose_device")
 	case "legacy": // configure a jottacloud backend using legacy authentication
@@ -168,7 +168,7 @@ machines.`)
 		if config.Result == "true" {
 			deviceRegistration, err := registerDevice(ctx, srv)
 			if err != nil {
-				return nil, errors.Wrap(err, "failed to register device")
+				return nil, fmt.Errorf("failed to register device: %w", err)
 			}
 			m.Set(configClientID, deviceRegistration.ClientID)
 			m.Set(configClientSecret, obscure.MustObscure(deviceRegistration.ClientSecret))
@@ -216,11 +216,11 @@ machines.`)
 		m.Set("password", "")
 		m.Set("auth_code", "")
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to get oauth token")
+			return nil, fmt.Errorf("failed to get oauth token: %w", err)
 		}
 		err = oauthutil.PutToken(name, m, &token, true)
 		if err != nil {
-			return nil, errors.Wrap(err, "error while saving token")
+			return nil, fmt.Errorf("error while saving token: %w", err)
 		}
 		return fs.ConfigGoto("choose_device")
 	case "telia": // telia cloud config
@@ -529,7 +529,7 @@ func getCustomerInfo(ctx context.Context, apiSrv *rest.Client) (info *api.Custom
 
 	_, err = apiSrv.CallJSON(ctx, &opts, nil, &info)
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't get customer info")
+		return nil, fmt.Errorf("couldn't get customer info: %w", err)
 	}
 
 	return info, nil
@@ -544,7 +544,7 @@ func getDriveInfo(ctx context.Context, srv *rest.Client, username string) (info
 
 	_, err = srv.CallXML(ctx, &opts, nil, &info)
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't get drive info")
+		return nil, fmt.Errorf("couldn't get drive info: %w", err)
 	}
 
 	return info, nil
@@ -559,7 +559,7 @@ func getDeviceInfo(ctx context.Context, srv *rest.Client, path string) (info *ap
 
 	_, err = srv.CallXML(ctx, &opts, nil, &info)
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't get device info")
+		return nil, fmt.Errorf("couldn't get device info: %w", err)
 	}
 
 	return info, nil
@@ -597,7 +597,7 @@ func (f *Fs) readMetaDataForPath(ctx context.Context, path string) (info *api.Jo
 	}
 
 	if err != nil {
-		return nil, errors.Wrap(err, "read metadata failed")
+		return nil, fmt.Errorf("read metadata failed: %w", err)
 	}
 	if result.XMLName.Local == "folder" {
 		return nil, fs.ErrorIsDir
@@ -720,7 +720,7 @@ func getOAuthClient(ctx context.Context, name string, m configmap.Mapper) (oAuth
 	// Create OAuth Client
 	oAuthClient, ts, err = oauthutil.NewClientWithBaseClient(ctx, name, m, oauthConfig, baseClient)
 	if err != nil {
-		return nil, nil, errors.Wrap(err, "Failed to configure Jottacloud oauth client")
+		return nil, nil, fmt.Errorf("Failed to configure Jottacloud oauth client: %w", err)
 	}
 	return oAuthClient, ts, nil
 }
@@ -786,7 +786,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		}
 		_, err := f.NewObject(context.TODO(), remote)
 		if err != nil {
-			if uErr := errors.Cause(err); uErr == fs.ErrorObjectNotFound || uErr == fs.ErrorNotAFile || uErr == fs.ErrorIsDir {
+			if errors.Is(err, fs.ErrorObjectNotFound) || errors.Is(err, fs.ErrorNotAFile) || errors.Is(err, fs.ErrorIsDir) {
 				// File doesn't exist so return old f
 				f.root = root
 				return f, nil
@@ -881,7 +881,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 				return nil, fs.ErrorDirNotFound
 			}
 		}
-		return nil, errors.Wrap(err, "couldn't list files")
+		return nil, fmt.Errorf("couldn't list files: %w", err)
 	}
 
 	if !f.validFolder(&result) {
@@ -981,7 +981,7 @@ func (f *Fs) ListR(ctx context.Context, dir string, callback fs.ListRCallback) (
 				return fs.ErrorDirNotFound
 			}
 		}
-		return errors.Wrap(err, "couldn't list files")
+		return fmt.Errorf("couldn't list files: %w", err)
 	}
 	list := walk.NewListRHelper(callback)
 	err = f.listFileDir(ctx, dir, &result, func(entry fs.DirEntry) error {
@@ -1081,7 +1081,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) (err error)
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "couldn't purge directory")
+		return fmt.Errorf("couldn't purge directory: %w", err)
 	}
 
 	return nil
@@ -1148,7 +1148,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	info, err := f.copyOrMove(ctx, "cp", srcObj.filePath(), remote)
 
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't copy file")
+		return nil, fmt.Errorf("couldn't copy file: %w", err)
 	}
 
 	return f.newObjectWithInfo(ctx, remote, info)
@@ -1178,7 +1178,7 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	info, err := f.copyOrMove(ctx, "mv", srcObj.filePath(), remote)
 
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't move file")
+		return nil, fmt.Errorf("couldn't move file: %w", err)
 	}
 
 	return f.newObjectWithInfo(ctx, remote, info)
@@ -1222,7 +1222,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 	_, err = f.copyOrMove(ctx, "mvDir", path.Join(f.endpointURL, f.opt.Enc.FromStandardPath(srcPath))+"/", dstRemote)
 
 	if err != nil {
-		return errors.Wrap(err, "couldn't move directory")
+		return fmt.Errorf("couldn't move directory: %w", err)
 	}
 	return nil
 }
@@ -1256,13 +1256,13 @@ func (f *Fs) PublicLink(ctx context.Context, remote string, expire fs.Duration,
 	}
 	if err != nil {
 		if unlink {
-			return "", errors.Wrap(err, "couldn't remove public link")
+			return "", fmt.Errorf("couldn't remove public link: %w", err)
 		}
-		return "", errors.Wrap(err, "couldn't create public link")
+		return "", fmt.Errorf("couldn't create public link: %w", err)
 	}
 	if unlink {
 		if result.PublicURI != "" {
-			return "", errors.Errorf("couldn't remove public link - %q", result.PublicURI)
+			return "", fmt.Errorf("couldn't remove public link - %q", result.PublicURI)
 		}
 		return "", nil
 	}
@@ -1322,7 +1322,7 @@ func (f *Fs) CleanUp(ctx context.Context) error {
 	var info api.TrashResponse
 	_, err := f.apiSrv.CallJSON(ctx, &opts, nil, &info)
 	if err != nil {
-		return errors.Wrap(err, "couldn't empty trash")
+		return fmt.Errorf("couldn't empty trash: %w", err)
 	}
 
 	return nil
@@ -1584,7 +1584,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 			// if the object exists delete it
 			err = o.remove(ctx, true)
 			if err != nil {
-				return errors.Wrap(err, "failed to remove old object")
+				return fmt.Errorf("failed to remove old object: %w", err)
 			}
 		}
 		// if the object does not exist we can just continue but if the error is something different we should report that
@@ -1605,7 +1605,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		md5String, in, cleanup, err = readMD5(in, size, int64(o.fs.opt.MD5MemoryThreshold))
 		defer cleanup()
 		if err != nil {
-			return errors.Wrap(err, "failed to calculate MD5")
+			return fmt.Errorf("failed to calculate MD5: %w", err)
 		}
 		// Wrap the accounting back onto the stream
 		in = wrap(in)

backend/local/about_unix.go

@@ -5,10 +5,10 @@ package local
 
 import (
 	"context"
+	"fmt"
 	"os"
 	"syscall"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 )
 
@@ -20,7 +20,7 @@ func (f *Fs) About(ctx context.Context) (*fs.Usage, error) {
 		if os.IsNotExist(err) {
 			return nil, fs.ErrorDirNotFound
 		}
-		return nil, errors.Wrap(err, "failed to read disk usage")
+		return nil, fmt.Errorf("failed to read disk usage: %w", err)
 	}
 	bs := int64(s.Bsize) // nolint: unconvert
 	usage := &fs.Usage{

backend/local/about_windows.go

@@ -5,10 +5,10 @@ package local
 
 import (
 	"context"
+	"fmt"
 	"syscall"
 	"unsafe"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 )
 
@@ -24,7 +24,7 @@ func (f *Fs) About(ctx context.Context) (*fs.Usage, error) {
 		uintptr(unsafe.Pointer(&free)),      // lpTotalNumberOfFreeBytes
 	)
 	if e1 != syscall.Errno(0) {
-		return nil, errors.Wrap(e1, "failed to read disk usage")
+		return nil, fmt.Errorf("failed to read disk usage: %w", e1)
 	}
 	usage := &fs.Usage{
 		Total: fs.NewUsageValue(total),        // quota of bytes that can be used

backend/local/local.go

@@ -4,6 +4,7 @@ package local
 import (
 	"bytes"
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -16,7 +17,6 @@ import (
 	"time"
 	"unicode/utf8"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/accounting"
 	"github.com/rclone/rclone/fs/config"
@@ -432,7 +432,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 	fd, err := os.Open(fsDirPath)
 	if err != nil {
 		isPerm := os.IsPermission(err)
-		err = errors.Wrapf(err, "failed to open directory %q", dir)
+		err = fmt.Errorf("failed to open directory %q: %w", dir, err)
 		fs.Errorf(dir, "%v", err)
 		if isPerm {
 			_ = accounting.Stats(ctx).Error(fserrors.NoRetryError(err))
@@ -443,7 +443,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 	defer func() {
 		cerr := fd.Close()
 		if cerr != nil && err == nil {
-			err = errors.Wrapf(cerr, "failed to close directory %q:", dir)
+			err = fmt.Errorf("failed to close directory %q:: %w", dir, cerr)
 		}
 	}()
 
@@ -473,7 +473,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 						continue
 					}
 					if fierr != nil {
-						err = errors.Wrapf(err, "failed to read directory %q", namepath)
+						err = fmt.Errorf("failed to read directory %q: %w", namepath, err)
 						fs.Errorf(dir, "%v", fierr)
 						_ = accounting.Stats(ctx).Error(fserrors.NoRetryError(fierr)) // fail the sync
 						continue
@@ -483,7 +483,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 			}
 		}
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to read directory entry")
+			return nil, fmt.Errorf("failed to read directory entry: %w", err)
 		}
 
 		for _, fi := range fis {
@@ -496,7 +496,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 				fi, err = os.Stat(localPath)
 				if os.IsNotExist(err) || isCircularSymlinkError(err) {
 					// Skip bad symlinks and circular symlinks
-					err = fserrors.NoRetryError(errors.Wrap(err, "symlink"))
+					err = fserrors.NoRetryError(fmt.Errorf("symlink: %w", err))
 					fs.Errorf(newRemote, "Listing error: %v", err)
 					err = accounting.Stats(ctx).Error(err)
 					continue
@@ -672,7 +672,7 @@ func (f *Fs) Purge(ctx context.Context, dir string) error {
 		return err
 	}
 	if !fi.Mode().IsDir() {
-		return errors.Errorf("can't purge non directory: %q", dir)
+		return fmt.Errorf("can't purge non directory: %q", dir)
 	}
 	return os.RemoveAll(dir)
 }
@@ -866,12 +866,12 @@ func (o *Object) Hash(ctx context.Context, r hash.Type) (string, error) {
 	err := o.lstat()
 	var changed bool
 	if err != nil {
-		if os.IsNotExist(errors.Cause(err)) {
+		if errors.Is(err, os.ErrNotExist) {
 			// If file not found then we assume any accumulated
 			// hashes are OK - this will error on Open
 			changed = true
 		} else {
-			return "", errors.Wrap(err, "hash: failed to stat")
+			return "", fmt.Errorf("hash: failed to stat: %w", err)
 		}
 	} else {
 		o.fs.objectMetaMu.RLock()
@@ -900,16 +900,16 @@ func (o *Object) Hash(ctx context.Context, r hash.Type) (string, error) {
 			in = readers.NewLimitedReadCloser(in, o.size)
 		}
 		if err != nil {
-			return "", errors.Wrap(err, "hash: failed to open")
+			return "", fmt.Errorf("hash: failed to open: %w", err)
 		}
 		var hashes map[hash.Type]string
 		hashes, err = hash.StreamTypes(in, hash.NewHashSet(r))
 		closeErr := in.Close()
 		if err != nil {
-			return "", errors.Wrap(err, "hash: failed to read")
+			return "", fmt.Errorf("hash: failed to read: %w", err)
 		}
 		if closeErr != nil {
-			return "", errors.Wrap(closeErr, "hash: failed to close")
+			return "", fmt.Errorf("hash: failed to close: %w", closeErr)
 		}
 		hashValue = hashes[r]
 		o.fs.objectMetaMu.Lock()
@@ -990,17 +990,17 @@ func (file *localOpenFile) Read(p []byte) (n int, err error) {
 		// Check if file has the same size and modTime
 		fi, err := file.fd.Stat()
 		if err != nil {
-			return 0, errors.Wrap(err, "can't read status of source file while transferring")
+			return 0, fmt.Errorf("can't read status of source file while transferring: %w", err)
 		}
 		file.o.fs.objectMetaMu.RLock()
 		oldtime := file.o.modTime
 		oldsize := file.o.size
 		file.o.fs.objectMetaMu.RUnlock()
 		if oldsize != fi.Size() {
-			return 0, fserrors.NoLowLevelRetryError(errors.Errorf("can't copy - source file is being updated (size changed from %d to %d)", oldsize, fi.Size()))
+			return 0, fserrors.NoLowLevelRetryError(fmt.Errorf("can't copy - source file is being updated (size changed from %d to %d)", oldsize, fi.Size()))
 		}
 		if !oldtime.Equal(fi.ModTime()) {
-			return 0, fserrors.NoLowLevelRetryError(errors.Errorf("can't copy - source file is being updated (mod time changed from %v to %v)", oldtime, fi.ModTime()))
+			return 0, fserrors.NoLowLevelRetryError(fmt.Errorf("can't copy - source file is being updated (mod time changed from %v to %v)", oldtime, fi.ModTime()))
 		}
 	}
 

backend/mailru/api/helpers.go

@@ -6,11 +6,11 @@ import (
 	"bufio"
 	"bytes"
 	"encoding/binary"
+	"errors"
 	"fmt"
 	"io"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/lib/readers"
 )
 

backend/mailru/mailru.go

@@ -3,6 +3,7 @@ package mailru
 import (
 	"bytes"
 	"context"
+	"errors"
 	"fmt"
 	gohash "hash"
 	"io"
@@ -40,7 +41,6 @@ import (
 	"github.com/rclone/rclone/lib/readers"
 	"github.com/rclone/rclone/lib/rest"
 
-	"github.com/pkg/errors"
 	"golang.org/x/oauth2"
 )
 
@@ -438,7 +438,7 @@ func (f *Fs) authorize(ctx context.Context, force bool) (err error) {
 		err = errors.New("Invalid token")
 	}
 	if err != nil {
-		return errors.Wrap(err, "Failed to authorize")
+		return fmt.Errorf("Failed to authorize: %w", err)
 	}
 
 	if err = oauthutil.PutToken(f.name, f.m, t, false); err != nil {
@@ -507,7 +507,7 @@ func (f *Fs) reAuthorize(opts *rest.Opts, origErr error) error {
 func (f *Fs) accessToken() (string, error) {
 	token, err := f.source.Token()
 	if err != nil {
-		return "", errors.Wrap(err, "cannot refresh access token")
+		return "", fmt.Errorf("cannot refresh access token: %w", err)
 	}
 	return token.AccessToken, nil
 }
@@ -1196,7 +1196,7 @@ func (f *Fs) purgeWithCheck(ctx context.Context, dir string, check bool, opName
 
 	_, dirSize, err := f.readItemMetaData(ctx, path)
 	if err != nil {
-		return errors.Wrapf(err, "%s failed", opName)
+		return fmt.Errorf("%s failed: %w", opName, err)
 	}
 	if check && dirSize > 0 {
 		return fs.ErrorDirectoryNotEmpty
@@ -1300,7 +1300,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	})
 
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't copy file")
+		return nil, fmt.Errorf("couldn't copy file: %w", err)
 	}
 	if response.Status != 200 {
 		return nil, fmt.Errorf("copy failed with code %d", response.Status)
@@ -1684,7 +1684,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 
 			spoolFile, mrHash, err := makeTempFile(ctx, tmpFs, wrapIn, src)
 			if err != nil {
-				return errors.Wrap(err, "Failed to create spool file")
+				return fmt.Errorf("Failed to create spool file: %w", err)
 			}
 			if o.putByHash(ctx, mrHash, src, "spool") {
 				// If put by hash is successful, ignore transitive error
@@ -2318,7 +2318,7 @@ func (p *serverPool) Dispatch(ctx context.Context, current string) (string, erro
 	})
 	if err != nil || url == "" {
 		closeBody(res)
-		return "", errors.Wrap(err, "Failed to request file server")
+		return "", fmt.Errorf("Failed to request file server: %w", err)
 	}
 
 	p.addServer(url, now)

backend/mega/mega.go

@@ -17,6 +17,7 @@ Improvements:
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"path"
@@ -24,7 +25,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
 	"github.com/rclone/rclone/fs/config/configmap"
@@ -165,13 +165,6 @@ func shouldRetry(ctx context.Context, err error) (bool, error) {
 	}
 	// Let the mega library handle the low level retries
 	return false, err
-	/*
-		switch errors.Cause(err) {
-		case mega.EAGAIN, mega.ERATELIMIT, mega.ETEMPUNAVAIL:
-			return true, err
-		}
-		return fserrors.ShouldRetry(err), err
-	*/
 }
 
 // readMetaDataForPath reads the metadata from the path
@@ -195,7 +188,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		var err error
 		opt.Pass, err = obscure.Reveal(opt.Pass)
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't decrypt password")
+			return nil, fmt.Errorf("couldn't decrypt password: %w", err)
 		}
 	}
 	ci := fs.GetConfig(ctx)
@@ -222,7 +215,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 
 		err := srv.Login(opt.User, opt.Pass)
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't login")
+			return nil, fmt.Errorf("couldn't login: %w", err)
 		}
 		megaCache[opt.User] = srv
 	}
@@ -350,11 +343,11 @@ func (f *Fs) mkdir(ctx context.Context, rootNode *mega.Node, dir string) (node *
 			break
 		}
 		if err != mega.ENOENT {
-			return nil, errors.Wrap(err, "mkdir lookup failed")
+			return nil, fmt.Errorf("mkdir lookup failed: %w", err)
 		}
 	}
 	if err != nil {
-		return nil, errors.Wrap(err, "internal error: mkdir called with non-existent root node")
+		return nil, fmt.Errorf("internal error: mkdir called with non-existent root node: %w", err)
 	}
 	// i is number of directories to create (may be 0)
 	// node is directory to create them from
@@ -365,7 +358,7 @@ func (f *Fs) mkdir(ctx context.Context, rootNode *mega.Node, dir string) (node *
 			return shouldRetry(ctx, err)
 		})
 		if err != nil {
-			return nil, errors.Wrap(err, "mkdir create node failed")
+			return nil, fmt.Errorf("mkdir create node failed: %w", err)
 		}
 	}
 	return node, nil
@@ -428,7 +421,7 @@ func (f *Fs) CleanUp(ctx context.Context) (err error) {
 		return false
 	})
 	if err != nil {
-		return errors.Wrap(err, "CleanUp failed to list items in trash")
+		return fmt.Errorf("CleanUp failed to list items in trash: %w", err)
 	}
 	fs.Infof(f, "Deleting %d items from the trash", len(items))
 	errors := 0
@@ -489,7 +482,7 @@ type listFn func(*mega.Node) bool
 func (f *Fs) list(ctx context.Context, dir *mega.Node, fn listFn) (found bool, err error) {
 	nodes, err := f.srv.FS.GetChildren(dir)
 	if err != nil {
-		return false, errors.Wrapf(err, "list failed")
+		return false, fmt.Errorf("list failed: %w", err)
 	}
 	for _, item := range nodes {
 		if fn(item) {
@@ -609,7 +602,7 @@ func (f *Fs) Mkdir(ctx context.Context, dir string) error {
 		return err
 	}
 	_, err = f.mkdir(ctx, rootNode, dir)
-	return errors.Wrap(err, "Mkdir failed")
+	return fmt.Errorf("Mkdir failed: %w", err)
 }
 
 // deleteNode removes a file or directory, observing useTrash
@@ -639,7 +632,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
 	if check {
 		children, err := f.srv.FS.GetChildren(dirNode)
 		if err != nil {
-			return errors.Wrap(err, "purgeCheck GetChildren failed")
+			return fmt.Errorf("purgeCheck GetChildren failed: %w", err)
 		}
 		if len(children) > 0 {
 			return fs.ErrorDirectoryNotEmpty
@@ -650,7 +643,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
 
 	err = f.deleteNode(ctx, dirNode)
 	if err != nil {
-		return errors.Wrap(err, "delete directory node failed")
+		return fmt.Errorf("delete directory node failed: %w", err)
 	}
 
 	// Remove the root node if we just deleted it
@@ -704,7 +697,7 @@ func (f *Fs) move(ctx context.Context, dstRemote string, srcFs *Fs, srcRemote st
 		dstDirNode, err = dstFs.mkdir(ctx, absRoot, dstParent)
 	}
 	if err != nil {
-		return errors.Wrap(err, "server-side move failed to make dst parent dir")
+		return fmt.Errorf("server-side move failed to make dst parent dir: %w", err)
 	}
 
 	if srcRemote != "" {
@@ -717,7 +710,7 @@ func (f *Fs) move(ctx context.Context, dstRemote string, srcFs *Fs, srcRemote st
 		srcDirNode, err = f.findDir(absRoot, srcParent)
 	}
 	if err != nil {
-		return errors.Wrap(err, "server-side move failed to lookup src parent dir")
+		return fmt.Errorf("server-side move failed to lookup src parent dir: %w", err)
 	}
 
 	// move the object into its new directory if required
@@ -728,7 +721,7 @@ func (f *Fs) move(ctx context.Context, dstRemote string, srcFs *Fs, srcRemote st
 			return shouldRetry(ctx, err)
 		})
 		if err != nil {
-			return errors.Wrap(err, "server-side move failed")
+			return fmt.Errorf("server-side move failed: %w", err)
 		}
 	}
 
@@ -742,7 +735,7 @@ func (f *Fs) move(ctx context.Context, dstRemote string, srcFs *Fs, srcRemote st
 			return shouldRetry(ctx, err)
 		})
 		if err != nil {
-			return errors.Wrap(err, "server-side rename failed")
+			return fmt.Errorf("server-side rename failed: %w", err)
 		}
 	}
 
@@ -812,7 +805,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 	if err == nil {
 		return fs.ErrorDirExists
 	} else if err != fs.ErrorDirNotFound {
-		return errors.Wrap(err, "DirMove error while checking dest directory")
+		return fmt.Errorf("DirMove error while checking dest directory: %w", err)
 	}
 
 	// Do the move
@@ -844,15 +837,15 @@ func (f *Fs) Hashes() hash.Set {
 func (f *Fs) PublicLink(ctx context.Context, remote string, expire fs.Duration, unlink bool) (link string, err error) {
 	root, err := f.findRoot(ctx, false)
 	if err != nil {
-		return "", errors.Wrap(err, "PublicLink failed to find root node")
+		return "", fmt.Errorf("PublicLink failed to find root node: %w", err)
 	}
 	node, err := f.findNode(root, remote)
 	if err != nil {
-		return "", errors.Wrap(err, "PublicLink failed to find path")
+		return "", fmt.Errorf("PublicLink failed to find path: %w", err)
 	}
 	link, err = f.srv.Link(node, true)
 	if err != nil {
-		return "", errors.Wrap(err, "PublicLink failed to create link")
+		return "", fmt.Errorf("PublicLink failed to create link: %w", err)
 	}
 	return link, nil
 }
@@ -867,13 +860,13 @@ func (f *Fs) MergeDirs(ctx context.Context, dirs []fs.Directory) error {
 	dstDir := dirs[0]
 	dstDirNode := f.srv.FS.HashLookup(dstDir.ID())
 	if dstDirNode == nil {
-		return errors.Errorf("MergeDirs failed to find node for: %v", dstDir)
+		return fmt.Errorf("MergeDirs failed to find node for: %v", dstDir)
 	}
 	for _, srcDir := range dirs[1:] {
 		// find src directory
 		srcDirNode := f.srv.FS.HashLookup(srcDir.ID())
 		if srcDirNode == nil {
-			return errors.Errorf("MergeDirs failed to find node for: %v", srcDir)
+			return fmt.Errorf("MergeDirs failed to find node for: %v", srcDir)
 		}
 
 		// list the objects
@@ -883,7 +876,7 @@ func (f *Fs) MergeDirs(ctx context.Context, dirs []fs.Directory) error {
 			return false
 		})
 		if err != nil {
-			return errors.Wrapf(err, "MergeDirs list failed on %v", srcDir)
+			return fmt.Errorf("MergeDirs list failed on %v: %w", srcDir, err)
 		}
 		// move them into place
 		for _, info := range infos {
@@ -893,14 +886,14 @@ func (f *Fs) MergeDirs(ctx context.Context, dirs []fs.Directory) error {
 				return shouldRetry(ctx, err)
 			})
 			if err != nil {
-				return errors.Wrapf(err, "MergeDirs move failed on %q in %v", f.opt.Enc.ToStandardName(info.GetName()), srcDir)
+				return fmt.Errorf("MergeDirs move failed on %q in %v: %w", f.opt.Enc.ToStandardName(info.GetName()), srcDir, err)
 			}
 		}
 		// rmdir (into trash) the now empty source directory
 		fs.Infof(srcDir, "removing empty directory")
 		err = f.deleteNode(ctx, srcDirNode)
 		if err != nil {
-			return errors.Wrapf(err, "MergeDirs move failed to rmdir %q", srcDir)
+			return fmt.Errorf("MergeDirs move failed to rmdir %q: %w", srcDir, err)
 		}
 	}
 	return nil
@@ -915,7 +908,7 @@ func (f *Fs) About(ctx context.Context) (*fs.Usage, error) {
 		return shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to get Mega Quota")
+		return nil, fmt.Errorf("failed to get Mega Quota: %w", err)
 	}
 	usage := &fs.Usage{
 		Total: fs.NewUsageValue(int64(q.Mstrg)),           // quota of bytes that can be used
@@ -1076,7 +1069,7 @@ func (oo *openObject) Close() (err error) {
 		return shouldRetry(oo.ctx, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "failed to finish download")
+		return fmt.Errorf("failed to finish download: %w", err)
 	}
 	oo.closed = true
 	return nil
@@ -1104,7 +1097,7 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 		return shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "open download file failed")
+		return nil, fmt.Errorf("open download file failed: %w", err)
 	}
 
 	oo := &openObject{
@@ -1133,7 +1126,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	// Create the parent directory
 	dirNode, leaf, err := o.fs.mkdirParent(ctx, remote)
 	if err != nil {
-		return errors.Wrap(err, "update make parent dir failed")
+		return fmt.Errorf("update make parent dir failed: %w", err)
 	}
 
 	var u *mega.Upload
@@ -1142,7 +1135,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		return shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "upload file failed to create session")
+		return fmt.Errorf("upload file failed to create session: %w", err)
 	}
 
 	// Upload the chunks
@@ -1150,12 +1143,12 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	for id := 0; id < u.Chunks(); id++ {
 		_, chunkSize, err := u.ChunkLocation(id)
 		if err != nil {
-			return errors.Wrap(err, "upload failed to read chunk location")
+			return fmt.Errorf("upload failed to read chunk location: %w", err)
 		}
 		chunk := make([]byte, chunkSize)
 		_, err = io.ReadFull(in, chunk)
 		if err != nil {
-			return errors.Wrap(err, "upload failed to read data")
+			return fmt.Errorf("upload failed to read data: %w", err)
 		}
 
 		err = o.fs.pacer.Call(func() (bool, error) {
@@ -1163,7 +1156,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 			return shouldRetry(ctx, err)
 		})
 		if err != nil {
-			return errors.Wrap(err, "upload file failed to upload chunk")
+			return fmt.Errorf("upload file failed to upload chunk: %w", err)
 		}
 	}
 
@@ -1174,14 +1167,14 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		return shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "failed to finish upload")
+		return fmt.Errorf("failed to finish upload: %w", err)
 	}
 
 	// If the upload succeeded and the original object existed, then delete it
 	if o.info != nil {
 		err = o.fs.deleteNode(ctx, o.info)
 		if err != nil {
-			return errors.Wrap(err, "upload failed to remove old version")
+			return fmt.Errorf("upload failed to remove old version: %w", err)
 		}
 		o.info = nil
 	}
@@ -1193,7 +1186,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 func (o *Object) Remove(ctx context.Context) error {
 	err := o.fs.deleteNode(ctx, o.info)
 	if err != nil {
-		return errors.Wrap(err, "Remove object failed")
+		return fmt.Errorf("Remove object failed: %w", err)
 	}
 	return nil
 }

backend/memory/memory.go

@@ -14,7 +14,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config/configmap"
 	"github.com/rclone/rclone/fs/config/configstruct"
@@ -586,7 +585,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	bucket, bucketPath := o.split()
 	data, err := ioutil.ReadAll(in)
 	if err != nil {
-		return errors.Wrap(err, "failed to update memory object")
+		return fmt.Errorf("failed to update memory object: %w", err)
 	}
 	o.od = &objectData{
 		data:     data,

backend/onedrive/onedrive.go

@@ -7,6 +7,7 @@ import (
 	"encoding/base64"
 	"encoding/hex"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -18,7 +19,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/onedrive/api"
 	"github.com/rclone/rclone/backend/onedrive/quickxorhash"
 	"github.com/rclone/rclone/fs"
@@ -385,7 +385,7 @@ func Config(ctx context.Context, name string, m configmap.Mapper, config fs.Conf
 
 	oAuthClient, _, err := oauthutil.NewClient(ctx, name, m, oauthConfig)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to configure OneDrive")
+		return nil, fmt.Errorf("failed to configure OneDrive: %w", err)
 	}
 	srv := rest.NewClient(oAuthClient)
 
@@ -754,10 +754,10 @@ func errorHandler(resp *http.Response) error {
 func checkUploadChunkSize(cs fs.SizeSuffix) error {
 	const minChunkSize = fs.SizeSuffixBase
 	if cs%chunkSizeMultiple != 0 {
-		return errors.Errorf("%s is not a multiple of %s", cs, chunkSizeMultiple)
+		return fmt.Errorf("%s is not a multiple of %s", cs, chunkSizeMultiple)
 	}
 	if cs < minChunkSize {
-		return errors.Errorf("%s is less than %s", cs, minChunkSize)
+		return fmt.Errorf("%s is less than %s", cs, minChunkSize)
 	}
 	return nil
 }
@@ -781,7 +781,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 
 	err = checkUploadChunkSize(opt.ChunkSize)
 	if err != nil {
-		return nil, errors.Wrap(err, "onedrive: chunk size")
+		return nil, fmt.Errorf("onedrive: chunk size: %w", err)
 	}
 
 	if opt.DriveID == "" || opt.DriveType == "" {
@@ -797,7 +797,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	root = parsePath(root)
 	oAuthClient, ts, err := oauthutil.NewClient(ctx, name, m, oauthConfig)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to configure OneDrive")
+		return nil, fmt.Errorf("failed to configure OneDrive: %w", err)
 	}
 
 	ci := fs.GetConfig(ctx)
@@ -828,7 +828,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	// Get rootID
 	rootInfo, _, err := f.readMetaDataForPath(ctx, "")
 	if err != nil || rootInfo.GetID() == "" {
-		return nil, errors.Wrap(err, "failed to get root")
+		return nil, fmt.Errorf("failed to get root: %w", err)
 	}
 
 	f.dirCache = dircache.New(root, rootInfo.GetID(), f)
@@ -971,7 +971,7 @@ OUTER:
 			return shouldRetry(ctx, resp, err)
 		})
 		if err != nil {
-			return found, errors.Wrap(err, "couldn't list files")
+			return found, fmt.Errorf("couldn't list files: %w", err)
 		}
 		if len(result.Value) == 0 {
 			break
@@ -1175,7 +1175,7 @@ func (f *Fs) waitForJob(ctx context.Context, location string, o *Object) error {
 		var status api.AsyncOperationStatus
 		err = json.Unmarshal(body, &status)
 		if err != nil {
-			return errors.Wrapf(err, "async status result not JSON: %q", body)
+			return fmt.Errorf("async status result not JSON: %q: %w", body, err)
 		}
 
 		switch status.Status {
@@ -1185,15 +1185,15 @@ func (f *Fs) waitForJob(ctx context.Context, location string, o *Object) error {
 			}
 			fallthrough
 		case "deleteFailed":
-			return errors.Errorf("%s: async operation returned %q", o.remote, status.Status)
+			return fmt.Errorf("%s: async operation returned %q", o.remote, status.Status)
 		case "completed":
 			err = o.readMetaData(ctx)
-			return errors.Wrapf(err, "async operation completed but readMetaData failed")
+			return fmt.Errorf("async operation completed but readMetaData failed: %w", err)
 		}
 
 		time.Sleep(1 * time.Second)
 	}
-	return errors.Errorf("async operation didn't complete after %v", f.ci.TimeoutOrInfinite())
+	return fmt.Errorf("async operation didn't complete after %v", f.ci.TimeoutOrInfinite())
 }
 
 // Copy src to this remote using server-side copy operations.
@@ -1232,7 +1232,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 		srcPath := srcObj.rootPath()
 		dstPath := f.rootPath(remote)
 		if strings.ToLower(srcPath) == strings.ToLower(dstPath) {
-			return nil, errors.Errorf("can't copy %q -> %q as are same name when lowercase", srcPath, dstPath)
+			return nil, fmt.Errorf("can't copy %q -> %q as are same name when lowercase", srcPath, dstPath)
 		}
 	}
 
@@ -1450,7 +1450,7 @@ func (f *Fs) About(ctx context.Context) (usage *fs.Usage, err error) {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "about failed")
+		return nil, fmt.Errorf("about failed: %w", err)
 	}
 	q := drive.Quota
 	// On (some?) Onedrive sharepoints these are all 0 so return unknown in that case
@@ -1501,7 +1501,7 @@ func (f *Fs) PublicLink(ctx context.Context, remote string, expire fs.Duration,
 	})
 	if err != nil {
 		if resp != nil && resp.StatusCode == 400 && f.driveType != driveTypePersonal {
-			return "", errors.Errorf("%v (is making public links permitted by the org admin?)", err)
+			return "", fmt.Errorf("%v (is making public links permitted by the org admin?)", err)
 		}
 		return "", err
 	}
@@ -1886,17 +1886,17 @@ func (o *Object) getPosition(ctx context.Context, url string) (pos int64, err er
 		return 0, err
 	}
 	if len(info.NextExpectedRanges) != 1 {
-		return 0, errors.Errorf("bad number of ranges in upload position: %v", info.NextExpectedRanges)
+		return 0, fmt.Errorf("bad number of ranges in upload position: %v", info.NextExpectedRanges)
 	}
 	position := info.NextExpectedRanges[0]
 	i := strings.IndexByte(position, '-')
 	if i < 0 {
-		return 0, errors.Errorf("no '-' in next expected range: %q", position)
+		return 0, fmt.Errorf("no '-' in next expected range: %q", position)
 	}
 	position = position[:i]
 	pos, err = strconv.ParseInt(position, 10, 64)
 	if err != nil {
-		return 0, errors.Wrapf(err, "bad expected range: %q", position)
+		return 0, fmt.Errorf("bad expected range: %q: %w", position, err)
 	}
 	return pos, nil
 }
@@ -1930,14 +1930,14 @@ func (o *Object) uploadFragment(ctx context.Context, url string, start int64, to
 			fs.Debugf(o, "Read position %d, chunk is %d..%d, bytes to skip = %d", pos, start, start+chunkSize, skip)
 			switch {
 			case skip < 0:
-				return false, errors.Wrapf(err, "sent block already (skip %d < 0), can't rewind", skip)
+				return false, fmt.Errorf("sent block already (skip %d < 0), can't rewind: %w", skip, err)
 			case skip > chunkSize:
-				return false, errors.Wrapf(err, "position is in the future (skip %d > chunkSize %d), can't skip forward", skip, chunkSize)
+				return false, fmt.Errorf("position is in the future (skip %d > chunkSize %d), can't skip forward: %w", skip, chunkSize, err)
 			case skip == chunkSize:
 				fs.Debugf(o, "Skipping chunk as already sent (skip %d == chunkSize %d)", skip, chunkSize)
 				return false, nil
 			}
-			return true, errors.Wrapf(err, "retry this chunk skipping %d bytes", skip)
+			return true, fmt.Errorf("retry this chunk skipping %d bytes: %w", skip, err)
 		}
 		if err != nil {
 			return shouldRetry(ctx, resp, err)

backend/opendrive/opendrive.go

@@ -2,6 +2,7 @@ package opendrive
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -11,7 +12,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
 	"github.com/rclone/rclone/fs/config/configmap"
@@ -210,7 +210,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		return f.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to create session")
+		return nil, fmt.Errorf("failed to create session: %w", err)
 	}
 	fs.Debugf(nil, "Starting OpenDrive session with ID: %s", f.session.SessionID)
 
@@ -362,7 +362,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	srcPath := srcObj.fs.rootSlash() + srcObj.remote
 	dstPath := f.rootSlash() + remote
 	if strings.ToLower(srcPath) == strings.ToLower(dstPath) {
-		return nil, errors.Errorf("Can't copy %q -> %q as are same name when lowercase", srcPath, dstPath)
+		return nil, fmt.Errorf("Can't copy %q -> %q as are same name when lowercase", srcPath, dstPath)
 	}
 
 	// Create temporary object
@@ -636,7 +636,7 @@ func (f *Fs) Put(ctx context.Context, in io.Reader, src fs.ObjectInfo, options .
 			return o.fs.shouldRetry(ctx, resp, err)
 		})
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to create file")
+			return nil, fmt.Errorf("failed to create file: %w", err)
 		}
 
 		o.id = response.FileID
@@ -719,7 +719,7 @@ func (f *Fs) FindLeaf(ctx context.Context, pathID, leaf string) (pathIDOut strin
 		return f.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return "", false, errors.Wrap(err, "failed to get folder list")
+		return "", false, fmt.Errorf("failed to get folder list: %w", err)
 	}
 
 	leaf = f.opt.Enc.FromStandardName(leaf)
@@ -762,7 +762,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 		return f.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to get folder list")
+		return nil, fmt.Errorf("failed to get folder list: %w", err)
 	}
 
 	for _, folder := range folderList.Folders {
@@ -871,7 +871,7 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 		return o.fs.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to open file)")
+		return nil, fmt.Errorf("failed to open file): %w", err)
 	}
 
 	return resp.Body, nil
@@ -919,7 +919,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		return o.fs.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "failed to create file")
+		return fmt.Errorf("failed to create file: %w", err)
 	}
 	// resp.Body.Close()
 	// fs.Debugf(nil, "PostOpen: %#v", openResponse)
@@ -963,10 +963,10 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 			return o.fs.shouldRetry(ctx, resp, err)
 		})
 		if err != nil {
-			return errors.Wrap(err, "failed to create file")
+			return fmt.Errorf("failed to create file: %w", err)
 		}
 		if reply.TotalWritten != currentChunkSize {
-			return errors.Errorf("failed to create file: incomplete write of %d/%d bytes", reply.TotalWritten, currentChunkSize)
+			return fmt.Errorf("failed to create file: incomplete write of %d/%d bytes", reply.TotalWritten, currentChunkSize)
 		}
 
 		chunkCounter++
@@ -986,7 +986,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		return o.fs.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "failed to create file")
+		return fmt.Errorf("failed to create file: %w", err)
 	}
 	// fs.Debugf(nil, "PostClose: %#v", closeResponse)
 
@@ -1038,7 +1038,7 @@ func (o *Object) readMetaData(ctx context.Context) (err error) {
 		return o.fs.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "failed to get folder list")
+		return fmt.Errorf("failed to get folder list: %w", err)
 	}
 
 	if len(folderList.Files) == 0 {

backend/pcloud/pcloud.go

@@ -10,6 +10,7 @@ package pcloud
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -18,7 +19,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/pcloud/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
@@ -290,7 +290,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	root = parsePath(root)
 	oAuthClient, ts, err := oauthutil.NewClient(ctx, name, m, oauthConfig)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to configure Pcloud")
+		return nil, fmt.Errorf("failed to configure Pcloud: %w", err)
 	}
 	updateTokenURL(oauthConfig, opt.Hostname)
 
@@ -463,7 +463,7 @@ func (f *Fs) listAll(ctx context.Context, dirID string, directoriesOnly bool, fi
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return found, errors.Wrap(err, "couldn't list files")
+		return found, fmt.Errorf("couldn't list files: %w", err)
 	}
 	for i := range result.Metadata.Contents {
 		item := &result.Metadata.Contents[i]
@@ -600,7 +600,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "rmdir failed")
+		return fmt.Errorf("rmdir failed: %w", err)
 	}
 	f.dirCache.FlushDir(dir)
 	if err != nil {
@@ -872,7 +872,7 @@ func (f *Fs) About(ctx context.Context) (usage *fs.Usage, err error) {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "about failed")
+		return nil, fmt.Errorf("about failed: %w", err)
 	}
 	usage = &fs.Usage{
 		Total: fs.NewUsageValue(q.Quota),               // quota of bytes that can be used
@@ -952,7 +952,7 @@ func (o *Object) Hash(ctx context.Context, t hash.Type) (string, error) {
 	if o.md5 == "" && o.sha1 == "" && o.sha256 == "" {
 		err := o.getHashes(ctx)
 		if err != nil {
-			return "", errors.Wrap(err, "failed to get hash")
+			return "", fmt.Errorf("failed to get hash: %w", err)
 		}
 	}
 	return *pHash, nil
@@ -971,7 +971,7 @@ func (o *Object) Size() int64 {
 // setMetaData sets the metadata from info
 func (o *Object) setMetaData(info *api.Item) (err error) {
 	if info.IsFolder {
-		return errors.Wrapf(fs.ErrorNotAFile, "%q is a folder", o.remote)
+		return fmt.Errorf("%q is a folder: %w", o.remote, fs.ErrorNotAFile)
 	}
 	o.hasMetaData = true
 	o.size = info.Size
@@ -1058,7 +1058,7 @@ func (o *Object) downloadURL(ctx context.Context) (URL string, err error) {
 		return "", err
 	}
 	if !result.IsValid() {
-		return "", errors.Errorf("fetched invalid link %+v", result)
+		return "", fmt.Errorf("fetched invalid link %+v", result)
 	}
 	o.link = &result
 	return o.link.URL(), nil
@@ -1146,7 +1146,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	if size == 0 {
 		formReader, contentType, overhead, err := rest.MultipartUpload(ctx, in, opts.Parameters, "content", leaf)
 		if err != nil {
-			return errors.Wrap(err, "failed to make multipart upload for 0 length file")
+			return fmt.Errorf("failed to make multipart upload for 0 length file: %w", err)
 		}
 
 		contentLength := overhead + size
@@ -1177,7 +1177,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		return err
 	}
 	if len(result.Items) != 1 {
-		return errors.Errorf("failed to upload %v - not sure why", o)
+		return fmt.Errorf("failed to upload %v - not sure why", o)
 	}
 	o.setHashes(&result.Checksums[0])
 	return o.setMetaData(&result.Items[0])

backend/premiumizeme/premiumizeme.go

@@ -18,6 +18,7 @@ canStream = false
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"net"
@@ -27,7 +28,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/premiumizeme/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
@@ -250,7 +250,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	if opt.APIKey == "" {
 		client, ts, err = oauthutil.NewClient(ctx, name, m, oauthConfig)
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to configure premiumize.me")
+			return nil, fmt.Errorf("failed to configure premiumize.me: %w", err)
 		}
 	} else {
 		client = fshttp.NewClient(ctx)
@@ -380,10 +380,10 @@ func (f *Fs) CreateDir(ctx context.Context, pathID, leaf string) (newID string,
 	})
 	if err != nil {
 		//fmt.Printf("...Error %v\n", err)
-		return "", errors.Wrap(err, "CreateDir http")
+		return "", fmt.Errorf("CreateDir http: %w", err)
 	}
 	if err = info.AsErr(); err != nil {
-		return "", errors.Wrap(err, "CreateDir")
+		return "", fmt.Errorf("CreateDir: %w", err)
 	}
 	// fmt.Printf("...Id %q\n", *info.Id)
 	return info.ID, nil
@@ -420,10 +420,10 @@ func (f *Fs) listAll(ctx context.Context, dirID string, directoriesOnly bool, fi
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return newDirID, found, errors.Wrap(err, "couldn't list files")
+		return newDirID, found, fmt.Errorf("couldn't list files: %w", err)
 	}
 	if err = result.AsErr(); err != nil {
-		return newDirID, found, errors.Wrap(err, "error while listing")
+		return newDirID, found, fmt.Errorf("error while listing: %w", err)
 	}
 	newDirID = result.FolderID
 	for i := range result.Content {
@@ -572,7 +572,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
 			return true
 		})
 		if err != nil {
-			return errors.Wrap(err, "purgeCheck")
+			return fmt.Errorf("purgeCheck: %w", err)
 		}
 		if found {
 			return fs.ErrorDirectoryNotEmpty
@@ -594,10 +594,10 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "rmdir failed")
+		return fmt.Errorf("rmdir failed: %w", err)
 	}
 	if err = result.AsErr(); err != nil {
-		return errors.Wrap(err, "rmdir")
+		return fmt.Errorf("rmdir: %w", err)
 	}
 	f.dirCache.FlushDir(dir)
 	if err != nil {
@@ -645,7 +645,7 @@ func (f *Fs) move(ctx context.Context, isFile bool, id, oldLeaf, newLeaf, oldDir
 		tmpLeaf := newLeaf + "." + random.String(8)
 		err = f.renameLeaf(ctx, isFile, id, tmpLeaf)
 		if err != nil {
-			return errors.Wrap(err, "Move rename leaf")
+			return fmt.Errorf("Move rename leaf: %w", err)
 		}
 	}
 
@@ -674,10 +674,10 @@ func (f *Fs) move(ctx context.Context, isFile bool, id, oldLeaf, newLeaf, oldDir
 			return shouldRetry(ctx, resp, err)
 		})
 		if err != nil {
-			return errors.Wrap(err, "Move http")
+			return fmt.Errorf("Move http: %w", err)
 		}
 		if err = result.AsErr(); err != nil {
-			return errors.Wrap(err, "Move")
+			return fmt.Errorf("Move: %w", err)
 		}
 	}
 
@@ -685,7 +685,7 @@ func (f *Fs) move(ctx context.Context, isFile bool, id, oldLeaf, newLeaf, oldDir
 	if doRenameLeaf {
 		err = f.renameLeaf(ctx, isFile, id, newLeaf)
 		if err != nil {
-			return errors.Wrap(err, "Move rename leaf")
+			return fmt.Errorf("Move rename leaf: %w", err)
 		}
 	}
 
@@ -783,10 +783,10 @@ func (f *Fs) About(ctx context.Context) (usage *fs.Usage, err error) {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "CreateDir http")
+		return nil, fmt.Errorf("CreateDir http: %w", err)
 	}
 	if err = info.AsErr(); err != nil {
-		return nil, errors.Wrap(err, "CreateDir")
+		return nil, fmt.Errorf("CreateDir: %w", err)
 	}
 	usage = &fs.Usage{
 		Used: fs.NewUsageValue(int64(info.SpaceUsed)),
@@ -843,7 +843,7 @@ func (o *Object) Size() int64 {
 // setMetaData sets the metadata from info
 func (o *Object) setMetaData(info *api.Item) (err error) {
 	if info.Type != "file" {
-		return errors.Wrapf(fs.ErrorNotAFile, "%q is %q", o.remote, info.Type)
+		return fmt.Errorf("%q is %q: %w", o.remote, info.Type, fs.ErrorNotAFile)
 	}
 	o.hasMetaData = true
 	o.size = info.Size
@@ -953,19 +953,19 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		var u *url.URL
 		u, err = url.Parse(info.URL)
 		if err != nil {
-			return true, errors.Wrap(err, "failed to parse download URL")
+			return true, fmt.Errorf("failed to parse download URL: %w", err)
 		}
 		_, err = net.LookupIP(u.Hostname())
 		if err != nil {
-			return true, errors.Wrap(err, "failed to resolve download URL")
+			return true, fmt.Errorf("failed to resolve download URL: %w", err)
 		}
 		return false, nil
 	})
 	if err != nil {
-		return errors.Wrap(err, "upload get URL http")
+		return fmt.Errorf("upload get URL http: %w", err)
 	}
 	if err = info.AsErr(); err != nil {
-		return errors.Wrap(err, "upload get URL")
+		return fmt.Errorf("upload get URL: %w", err)
 	}
 
 	// if file exists then rename it out the way otherwise uploads can fail
@@ -976,7 +976,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		fs.Debugf(o, "Moving old file out the way to %q", newLeaf)
 		err = o.fs.renameLeaf(ctx, true, oldID, newLeaf)
 		if err != nil {
-			return errors.Wrap(err, "upload rename old file")
+			return fmt.Errorf("upload rename old file: %w", err)
 		}
 		defer func() {
 			// on failed upload rename old file back
@@ -984,7 +984,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 				fs.Debugf(o, "Renaming old file back (from %q to %q) since upload failed", leaf, newLeaf)
 				newErr := o.fs.renameLeaf(ctx, true, oldID, leaf)
 				if newErr != nil && err == nil {
-					err = errors.Wrap(newErr, "upload renaming old file back")
+					err = fmt.Errorf("upload renaming old file back: %w", newErr)
 				}
 			}
 		}()
@@ -1007,10 +1007,10 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "upload file http")
+		return fmt.Errorf("upload file http: %w", err)
 	}
 	if err = result.AsErr(); err != nil {
-		return errors.Wrap(err, "upload file")
+		return fmt.Errorf("upload file: %w", err)
 	}
 
 	// on successful upload, remove old file if it exists
@@ -1019,7 +1019,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		fs.Debugf(o, "Removing old file")
 		err := o.fs.remove(ctx, oldID)
 		if err != nil {
-			return errors.Wrap(err, "upload remove old file")
+			return fmt.Errorf("upload remove old file: %w", err)
 		}
 	}
 
@@ -1049,10 +1049,10 @@ func (f *Fs) renameLeaf(ctx context.Context, isFile bool, id string, newLeaf str
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "rename http")
+		return fmt.Errorf("rename http: %w", err)
 	}
 	if err = result.AsErr(); err != nil {
-		return errors.Wrap(err, "rename")
+		return fmt.Errorf("rename: %w", err)
 	}
 	return nil
 }
@@ -1074,10 +1074,10 @@ func (f *Fs) remove(ctx context.Context, id string) (err error) {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "remove http")
+		return fmt.Errorf("remove http: %w", err)
 	}
 	if err = result.AsErr(); err != nil {
-		return errors.Wrap(err, "remove")
+		return fmt.Errorf("remove: %w", err)
 	}
 	return nil
 }
@@ -1086,7 +1086,7 @@ func (f *Fs) remove(ctx context.Context, id string) (err error) {
 func (o *Object) Remove(ctx context.Context) error {
 	err := o.readMetaData(ctx)
 	if err != nil {
-		return errors.Wrap(err, "Remove: Failed to read metadata")
+		return fmt.Errorf("Remove: Failed to read metadata: %w", err)
 	}
 	return o.fs.remove(ctx, o.id)
 }

backend/putio/fs.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"context"
 	"encoding/base64"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -13,7 +14,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/putdotio/go-putio/putio"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config/configmap"
@@ -80,7 +80,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (f fs.Fs,
 	httpClient := fshttp.NewClient(ctx)
 	oAuthClient, _, err := oauthutil.NewClientWithBaseClient(ctx, name, m, putioConfig, httpClient)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to configure putio")
+		return nil, fmt.Errorf("failed to configure putio: %w", err)
 	}
 	p := &Fs{
 		name:        name,
@@ -469,7 +469,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) (err error)
 	// check directory exists
 	directoryID, err := f.dirCache.FindDir(ctx, dir, false)
 	if err != nil {
-		return errors.Wrap(err, "Rmdir")
+		return fmt.Errorf("Rmdir: %w", err)
 	}
 	dirID := atoi(directoryID)
 
@@ -482,7 +482,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) (err error)
 			return shouldRetry(ctx, err)
 		})
 		if err != nil {
-			return errors.Wrap(err, "Rmdir")
+			return fmt.Errorf("Rmdir: %w", err)
 		}
 		if len(children) != 0 {
 			return errors.New("directory not empty")
@@ -647,7 +647,7 @@ func (f *Fs) About(ctx context.Context) (usage *fs.Usage, err error) {
 		return shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "about failed")
+		return nil, fmt.Errorf("about failed: %w", err)
 	}
 	return &fs.Usage{
 		Total: fs.NewUsageValue(ai.Disk.Size),  // quota of bytes that can be used

backend/putio/object.go

@@ -2,6 +2,7 @@ package putio
 
 import (
 	"context"
+	"fmt"
 	"io"
 	"net/http"
 	"net/url"
@@ -9,7 +10,6 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/putdotio/go-putio/putio"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/fserrors"
@@ -82,7 +82,7 @@ func (o *Object) Hash(ctx context.Context, t hash.Type) (string, error) {
 	}
 	err := o.readEntryAndSetMetadata(ctx)
 	if err != nil {
-		return "", errors.Wrap(err, "failed to read hash from metadata")
+		return "", fmt.Errorf("failed to read hash from metadata: %w", err)
 	}
 	return o.file.CRC32, nil
 }

backend/qingstor/qingstor.go

@@ -8,6 +8,7 @@ package qingstor
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -17,7 +18,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
 	"github.com/rclone/rclone/fs/config/configmap"
@@ -285,7 +285,7 @@ func qsServiceConnection(ctx context.Context, opt *Options) (*qs.Service, error)
 
 func checkUploadChunkSize(cs fs.SizeSuffix) error {
 	if cs < minChunkSize {
-		return errors.Errorf("%s is less than %s", cs, minChunkSize)
+		return fmt.Errorf("%s is less than %s", cs, minChunkSize)
 	}
 	return nil
 }
@@ -300,7 +300,7 @@ func (f *Fs) setUploadChunkSize(cs fs.SizeSuffix) (old fs.SizeSuffix, err error)
 
 func checkUploadCutoff(cs fs.SizeSuffix) error {
 	if cs > maxUploadCutoff {
-		return errors.Errorf("%s is greater than %s", cs, maxUploadCutoff)
+		return fmt.Errorf("%s is greater than %s", cs, maxUploadCutoff)
 	}
 	return nil
 }
@@ -329,11 +329,11 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	}
 	err = checkUploadChunkSize(opt.ChunkSize)
 	if err != nil {
-		return nil, errors.Wrap(err, "qingstor: chunk size")
+		return nil, fmt.Errorf("qingstor: chunk size: %w", err)
 	}
 	err = checkUploadCutoff(opt.UploadCutoff)
 	if err != nil {
-		return nil, errors.Wrap(err, "qingstor: upload cutoff")
+		return nil, fmt.Errorf("qingstor: upload cutoff: %w", err)
 	}
 	svc, err := qsServiceConnection(ctx, opt)
 	if err != nil {
@@ -884,7 +884,7 @@ func (f *Fs) cleanUpBucket(ctx context.Context, bucket string) (err error) {
 		var resp *qs.ListMultipartUploadsOutput
 		resp, err = bucketInit.ListMultipartUploads(&req)
 		if err != nil {
-			return errors.Wrap(err, "clean up bucket list multipart uploads")
+			return fmt.Errorf("clean up bucket list multipart uploads: %w", err)
 		}
 		for _, upload := range resp.Uploads {
 			if upload.Created != nil && upload.Key != nil && upload.UploadID != nil {
@@ -896,7 +896,7 @@ func (f *Fs) cleanUpBucket(ctx context.Context, bucket string) (err error) {
 					}
 					_, abortErr := bucketInit.AbortMultipartUpload(*upload.Key, &req)
 					if abortErr != nil {
-						err = errors.Wrapf(abortErr, "failed to remove multipart upload for %q", *upload.Key)
+						err = fmt.Errorf("failed to remove multipart upload for %q: %w", *upload.Key, abortErr)
 						fs.Errorf(f, "%v", err)
 					}
 				} else {

backend/qingstor/upload.go

@@ -8,13 +8,13 @@ package qingstor
 import (
 	"bytes"
 	"crypto/md5"
+	"errors"
 	"fmt"
 	"hash"
 	"io"
 	"sort"
 	"sync"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/lib/atexit"
 	qs "github.com/yunify/qingstor-sdk-go/v3/service"
@@ -175,7 +175,7 @@ func (u *uploader) upload() error {
 	u.init()
 
 	if u.cfg.partSize < minMultiPartSize {
-		return errors.Errorf("part size must be at least %d bytes", minMultiPartSize)
+		return fmt.Errorf("part size must be at least %d bytes", minMultiPartSize)
 	}
 
 	// Do one read to determine if we have more than one part
@@ -184,7 +184,7 @@ func (u *uploader) upload() error {
 		fs.Debugf(u, "Uploading as single part object to QingStor")
 		return u.singlePartUpload(reader, u.readerPos)
 	} else if err != nil {
-		return errors.Errorf("read upload data failed: %s", err)
+		return fmt.Errorf("read upload data failed: %s", err)
 	}
 
 	fs.Debugf(u, "Uploading as multi-part object to QingStor")

backend/s3/s3.go

@@ -9,6 +9,7 @@ import (
 	"encoding/base64"
 	"encoding/hex"
 	"encoding/xml"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -33,7 +34,6 @@ import (
 	"github.com/aws/aws-sdk-go/aws/session"
 	"github.com/aws/aws-sdk-go/service/s3"
 	"github.com/ncw/swift/v2"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
 	"github.com/rclone/rclone/fs/config/configmap"
@@ -1557,7 +1557,7 @@ func s3Connection(ctx context.Context, opt *Options, client *http.Client) (*s3.S
 	// start a new AWS session
 	awsSession, err := session.NewSession()
 	if err != nil {
-		return nil, nil, errors.Wrap(err, "NewSession")
+		return nil, nil, fmt.Errorf("NewSession: %w", err)
 	}
 
 	// first provider to supply a credential set "wins"
@@ -1661,7 +1661,7 @@ func s3Connection(ctx context.Context, opt *Options, client *http.Client) (*s3.S
 
 func checkUploadChunkSize(cs fs.SizeSuffix) error {
 	if cs < minChunkSize {
-		return errors.Errorf("%s is less than %s", cs, minChunkSize)
+		return fmt.Errorf("%s is less than %s", cs, minChunkSize)
 	}
 	return nil
 }
@@ -1676,7 +1676,7 @@ func (f *Fs) setUploadChunkSize(cs fs.SizeSuffix) (old fs.SizeSuffix, err error)
 
 func checkUploadCutoff(cs fs.SizeSuffix) error {
 	if cs > maxUploadCutoff {
-		return errors.Errorf("%s is greater than %s", cs, maxUploadCutoff)
+		return fmt.Errorf("%s is greater than %s", cs, maxUploadCutoff)
 	}
 	return nil
 }
@@ -1789,11 +1789,11 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	}
 	err = checkUploadChunkSize(opt.ChunkSize)
 	if err != nil {
-		return nil, errors.Wrap(err, "s3: chunk size")
+		return nil, fmt.Errorf("s3: chunk size: %w", err)
 	}
 	err = checkUploadCutoff(opt.UploadCutoff)
 	if err != nil {
-		return nil, errors.Wrap(err, "s3: upload cutoff")
+		return nil, fmt.Errorf("s3: upload cutoff: %w", err)
 	}
 	if opt.ACL == "" {
 		opt.ACL = "private"
@@ -1931,13 +1931,13 @@ func (f *Fs) getBucketLocation(ctx context.Context, bucket string) (string, erro
 func (f *Fs) updateRegionForBucket(ctx context.Context, bucket string) error {
 	region, err := f.getBucketLocation(ctx, bucket)
 	if err != nil {
-		return errors.Wrap(err, "reading bucket location failed")
+		return fmt.Errorf("reading bucket location failed: %w", err)
 	}
 	if aws.StringValue(f.c.Config.Endpoint) != "" {
-		return errors.Errorf("can't set region to %q as endpoint is set", region)
+		return fmt.Errorf("can't set region to %q as endpoint is set", region)
 	}
 	if aws.StringValue(f.c.Config.Region) == region {
-		return errors.Errorf("region is already %q - not updating", region)
+		return fmt.Errorf("region is already %q - not updating", region)
 	}
 
 	// Make a new session with the new region
@@ -1945,7 +1945,7 @@ func (f *Fs) updateRegionForBucket(ctx context.Context, bucket string) error {
 	f.opt.Region = region
 	c, ses, err := s3Connection(f.ctx, &f.opt, f.srv)
 	if err != nil {
-		return errors.Wrap(err, "creating new session failed")
+		return fmt.Errorf("creating new session failed: %w", err)
 	}
 	f.c = c
 	f.ses = ses
@@ -2141,7 +2141,7 @@ func (f *Fs) list(ctx context.Context, bucket, directory, prefix string, addBuck
 		if startAfter != nil && urlEncodeListings {
 			*startAfter, err = url.QueryUnescape(*startAfter)
 			if err != nil {
-				return errors.Wrapf(err, "failed to URL decode StartAfter/NextMarker %q", *continuationToken)
+				return fmt.Errorf("failed to URL decode StartAfter/NextMarker %q: %w", *continuationToken, err)
 			}
 		}
 	}
@@ -2727,7 +2727,7 @@ func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[str
 		if lifetime := opt["lifetime"]; lifetime != "" {
 			ilifetime, err := strconv.ParseInt(lifetime, 10, 64)
 			if err != nil {
-				return nil, errors.Wrap(err, "bad lifetime")
+				return nil, fmt.Errorf("bad lifetime: %w", err)
 			}
 			req.RestoreRequest.Days = &ilifetime
 		}
@@ -2786,7 +2786,7 @@ func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[str
 		if opt["max-age"] != "" {
 			maxAge, err = fs.ParseDuration(opt["max-age"])
 			if err != nil {
-				return nil, errors.Wrap(err, "bad max-age")
+				return nil, fmt.Errorf("bad max-age: %w", err)
 			}
 		}
 		return nil, f.cleanUp(ctx, maxAge)
@@ -2820,7 +2820,7 @@ func (f *Fs) listMultipartUploads(ctx context.Context, bucket, key string) (uplo
 			return f.shouldRetry(ctx, err)
 		})
 		if err != nil {
-			return nil, errors.Wrapf(err, "list multipart uploads bucket %q key %q", bucket, key)
+			return nil, fmt.Errorf("list multipart uploads bucket %q key %q: %w", bucket, key, err)
 		}
 		uploads = append(uploads, resp.Uploads...)
 		if !aws.BoolValue(resp.IsTruncated) {
@@ -2878,7 +2878,7 @@ func (f *Fs) cleanUpBucket(ctx context.Context, bucket string, maxAge time.Durat
 				}
 				_, abortErr := f.c.AbortMultipartUpload(&req)
 				if abortErr != nil {
-					err = errors.Wrapf(abortErr, "failed to remove %s", what)
+					err = fmt.Errorf("failed to remove %s: %w", what, abortErr)
 					fs.Errorf(f, "%v", err)
 				}
 			} else {
@@ -3218,7 +3218,7 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 	})
 	if err, ok := err.(awserr.RequestFailure); ok {
 		if err.Code() == "InvalidObjectState" {
-			return nil, errors.Errorf("Object in GLACIER, restore first: bucket=%q, key=%q", bucket, bucketPath)
+			return nil, fmt.Errorf("Object in GLACIER, restore first: bucket=%q, key=%q", bucket, bucketPath)
 		}
 	}
 	if err != nil {
@@ -3296,7 +3296,7 @@ func (o *Object) uploadMultipart(ctx context.Context, req *s3.PutObjectInput, si
 		return f.shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "multipart upload failed to initialise")
+		return fmt.Errorf("multipart upload failed to initialise: %w", err)
 	}
 	uid := cout.UploadId
 
@@ -3356,7 +3356,7 @@ func (o *Object) uploadMultipart(ctx context.Context, req *s3.PutObjectInput, si
 			finished = true
 		} else if err != nil {
 			free()
-			return errors.Wrap(err, "multipart upload failed to read source")
+			return fmt.Errorf("multipart upload failed to read source: %w", err)
 		}
 		buf = buf[:n]
 
@@ -3403,7 +3403,7 @@ func (o *Object) uploadMultipart(ctx context.Context, req *s3.PutObjectInput, si
 				return false, nil
 			})
 			if err != nil {
-				return errors.Wrap(err, "multipart upload failed to upload part")
+				return fmt.Errorf("multipart upload failed to upload part: %w", err)
 			}
 			return nil
 		})
@@ -3431,7 +3431,7 @@ func (o *Object) uploadMultipart(ctx context.Context, req *s3.PutObjectInput, si
 		return f.shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "multipart upload failed to finalise")
+		return fmt.Errorf("multipart upload failed to finalise: %w", err)
 	}
 	return nil
 }
@@ -3557,7 +3557,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		// PutObject so we'll use this work-around.
 		url, headers, err := putObj.PresignRequest(15 * time.Minute)
 		if err != nil {
-			return errors.Wrap(err, "s3 upload: sign request")
+			return fmt.Errorf("s3 upload: sign request: %w", err)
 		}
 
 		if o.fs.opt.V2Auth && headers == nil {
@@ -3572,7 +3572,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		// create the vanilla http request
 		httpReq, err := http.NewRequestWithContext(ctx, "PUT", url, in)
 		if err != nil {
-			return errors.Wrap(err, "s3 upload: new request")
+			return fmt.Errorf("s3 upload: new request: %w", err)
 		}
 
 		// set the headers we signed and the length
@@ -3592,7 +3592,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 			if resp.StatusCode >= 200 && resp.StatusCode < 299 {
 				return false, nil
 			}
-			err = errors.Errorf("s3 upload: %s: %s", resp.Status, body)
+			err = fmt.Errorf("s3 upload: %s: %s", resp.Status, body)
 			return fserrors.ShouldRetryHTTP(resp, retryErrorCodes), err
 		})
 		if err != nil {

backend/seafile/seafile.go

@@ -2,6 +2,7 @@ package seafile
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -13,7 +14,6 @@ import (
 	"time"
 
 	"github.com/coreos/go-semver/semver"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/seafile/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
@@ -171,14 +171,14 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		var err error
 		opt.Password, err = obscure.Reveal(opt.Password)
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't decrypt user password")
+			return nil, fmt.Errorf("couldn't decrypt user password: %w", err)
 		}
 	}
 	if opt.LibraryKey != "" {
 		var err error
 		opt.LibraryKey, err = obscure.Reveal(opt.LibraryKey)
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't decrypt library password")
+			return nil, fmt.Errorf("couldn't decrypt library password: %w", err)
 		}
 	}
 
@@ -282,7 +282,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		}
 		_, err := f.NewObject(ctx, remote)
 		if err != nil {
-			if errors.Cause(err) == fs.ErrorObjectNotFound || errors.Cause(err) == fs.ErrorNotAFile {
+			if errors.Is(err, fs.ErrorObjectNotFound) || errors.Is(err, fs.ErrorNotAFile) {
 				// File doesn't exist so return the original f
 				f.rootDirectory = rootDirectory
 				return f, nil
@@ -305,7 +305,7 @@ func Config(ctx context.Context, name string, m configmap.Mapper, config fs.Conf
 
 	u, err := url.Parse(serverURL)
 	if err != nil {
-		return nil, errors.Errorf("invalid server URL %s", serverURL)
+		return nil, fmt.Errorf("invalid server URL %s", serverURL)
 	}
 
 	is2faEnabled, _ := m.Get(config2FA)
@@ -886,7 +886,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 	// 1- rename source
 	err = srcFs.renameDir(ctx, srcLibraryID, srcPath, tempName)
 	if err != nil {
-		return errors.Wrap(err, "Cannot rename source directory to a temporary name")
+		return fmt.Errorf("Cannot rename source directory to a temporary name: %w", err)
 	}
 
 	// 2- move source to destination
@@ -900,7 +900,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 	// 3- rename destination back to source name
 	err = f.renameDir(ctx, dstLibraryID, path.Join(dstDir, tempName), dstName)
 	if err != nil {
-		return errors.Wrap(err, "Cannot rename temporary directory to destination name")
+		return fmt.Errorf("Cannot rename temporary directory to destination name: %w", err)
 	}
 
 	return nil

backend/seafile/webapi.go

@@ -3,6 +3,7 @@ package seafile
 import (
 	"bytes"
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -11,7 +12,6 @@ import (
 	"path"
 	"strings"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/seafile/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/lib/readers"
@@ -61,7 +61,7 @@ func getAuthorizationToken(ctx context.Context, srv *rest.Client, user, password
 	_, err := srv.CallJSON(ctx, &opts, &request, &result)
 	if err != nil {
 		// This is only going to be http errors here
-		return "", errors.Wrap(err, "failed to authenticate")
+		return "", fmt.Errorf("failed to authenticate: %w", err)
 	}
 	if result.Errors != nil && len(result.Errors) > 0 {
 		return "", errors.New(strings.Join(result.Errors, ", "))
@@ -94,7 +94,7 @@ func (f *Fs) getServerInfo(ctx context.Context) (account *api.ServerInfo, err er
 				return nil, fs.ErrorPermissionDenied
 			}
 		}
-		return nil, errors.Wrap(err, "failed to get server info")
+		return nil, fmt.Errorf("failed to get server info: %w", err)
 	}
 	return &result, nil
 }
@@ -120,7 +120,7 @@ func (f *Fs) getUserAccountInfo(ctx context.Context) (account *api.AccountInfo,
 				return nil, fs.ErrorPermissionDenied
 			}
 		}
-		return nil, errors.Wrap(err, "failed to get account info")
+		return nil, fmt.Errorf("failed to get account info: %w", err)
 	}
 	return &result, nil
 }
@@ -147,7 +147,7 @@ func (f *Fs) getLibraries(ctx context.Context) ([]api.Library, error) {
 				return nil, fs.ErrorPermissionDenied
 			}
 		}
-		return nil, errors.Wrap(err, "failed to get libraries")
+		return nil, fmt.Errorf("failed to get libraries: %w", err)
 	}
 	return result, nil
 }
@@ -178,7 +178,7 @@ func (f *Fs) createLibrary(ctx context.Context, libraryName, password string) (l
 				return nil, fs.ErrorPermissionDenied
 			}
 		}
-		return nil, errors.Wrap(err, "failed to create library")
+		return nil, fmt.Errorf("failed to create library: %w", err)
 	}
 	return result, nil
 }
@@ -205,7 +205,7 @@ func (f *Fs) deleteLibrary(ctx context.Context, libraryID string) error {
 				return fs.ErrorPermissionDenied
 			}
 		}
-		return errors.Wrap(err, "failed to delete library")
+		return fmt.Errorf("failed to delete library: %w", err)
 	}
 	return nil
 }
@@ -240,7 +240,7 @@ func (f *Fs) decryptLibrary(ctx context.Context, libraryID, password string) err
 				return nil
 			}
 		}
-		return errors.Wrap(err, "failed to decrypt library")
+		return fmt.Errorf("failed to decrypt library: %w", err)
 	}
 	return nil
 }
@@ -286,7 +286,7 @@ func (f *Fs) getDirectoryEntriesAPIv21(ctx context.Context, libraryID, dirPath s
 				return nil, fs.ErrorPermissionDenied
 			}
 		}
-		return nil, errors.Wrap(err, "failed to get directory contents")
+		return nil, fmt.Errorf("failed to get directory contents: %w", err)
 	}
 
 	// Clean up encoded names
@@ -327,7 +327,7 @@ func (f *Fs) getDirectoryDetails(ctx context.Context, libraryID, dirPath string)
 				return nil, fs.ErrorDirNotFound
 			}
 		}
-		return nil, errors.Wrap(err, "failed to get directory details")
+		return nil, fmt.Errorf("failed to get directory details: %w", err)
 	}
 	result.Name = f.opt.Enc.ToStandardName(result.Name)
 	result.Path = f.opt.Enc.ToStandardPath(result.Path)
@@ -366,7 +366,7 @@ func (f *Fs) createDir(ctx context.Context, libraryID, dirPath string) error {
 				return fs.ErrorPermissionDenied
 			}
 		}
-		return errors.Wrap(err, "failed to create directory")
+		return fmt.Errorf("failed to create directory: %w", err)
 	}
 	return nil
 }
@@ -406,7 +406,7 @@ func (f *Fs) renameDir(ctx context.Context, libraryID, dirPath, newName string)
 				return fs.ErrorPermissionDenied
 			}
 		}
-		return errors.Wrap(err, "failed to rename directory")
+		return fmt.Errorf("failed to rename directory: %w", err)
 	}
 	return nil
 }
@@ -449,7 +449,7 @@ func (f *Fs) moveDir(ctx context.Context, srcLibraryID, srcDir, srcName, dstLibr
 				return fs.ErrorObjectNotFound
 			}
 		}
-		return errors.Wrap(err, fmt.Sprintf("failed to move directory '%s' from '%s' to '%s'", srcName, srcDir, dstPath))
+		return fmt.Errorf("failed to move directory '%s' from '%s' to '%s': %w", srcName, srcDir, dstPath, err)
 	}
 
 	return nil
@@ -482,7 +482,7 @@ func (f *Fs) deleteDir(ctx context.Context, libraryID, filePath string) error {
 				return fs.ErrorPermissionDenied
 			}
 		}
-		return errors.Wrap(err, "failed to delete directory")
+		return fmt.Errorf("failed to delete directory: %w", err)
 	}
 	return nil
 }
@@ -516,7 +516,7 @@ func (f *Fs) getFileDetails(ctx context.Context, libraryID, filePath string) (*a
 				return nil, fs.ErrorPermissionDenied
 			}
 		}
-		return nil, errors.Wrap(err, "failed to get file details")
+		return nil, fmt.Errorf("failed to get file details: %w", err)
 	}
 	result.Name = f.opt.Enc.ToStandardName(result.Name)
 	result.Parent = f.opt.Enc.ToStandardPath(result.Parent)
@@ -542,7 +542,7 @@ func (f *Fs) deleteFile(ctx context.Context, libraryID, filePath string) error {
 		return f.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "failed to delete file")
+		return fmt.Errorf("failed to delete file: %w", err)
 	}
 	return nil
 }
@@ -573,7 +573,7 @@ func (f *Fs) getDownloadLink(ctx context.Context, libraryID, filePath string) (s
 				return "", fs.ErrorObjectNotFound
 			}
 		}
-		return "", errors.Wrap(err, "failed to get download link")
+		return "", fmt.Errorf("failed to get download link: %w", err)
 	}
 	return result, nil
 }
@@ -667,7 +667,7 @@ func (f *Fs) getUploadLink(ctx context.Context, libraryID string) (string, error
 				return "", fs.ErrorPermissionDenied
 			}
 		}
-		return "", errors.Wrap(err, "failed to get upload link")
+		return "", fmt.Errorf("failed to get upload link: %w", err)
 	}
 	return result, nil
 }
@@ -684,7 +684,7 @@ func (f *Fs) upload(ctx context.Context, in io.Reader, uploadLink, filePath stri
 	}
 	formReader, contentType, _, err := rest.MultipartUpload(ctx, in, parameters, "file", f.opt.Enc.FromStandardName(filename))
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to make multipart upload")
+		return nil, fmt.Errorf("failed to make multipart upload: %w", err)
 	}
 
 	opts := rest.Opts{
@@ -711,7 +711,7 @@ func (f *Fs) upload(ctx context.Context, in io.Reader, uploadLink, filePath stri
 				return nil, ErrorInternalDuringUpload
 			}
 		}
-		return nil, errors.Wrap(err, "failed to upload file")
+		return nil, fmt.Errorf("failed to upload file: %w", err)
 	}
 	if len(result) > 0 {
 		result[0].Parent = f.opt.Enc.ToStandardPath(result[0].Parent)
@@ -750,7 +750,7 @@ func (f *Fs) listShareLinks(ctx context.Context, libraryID, remote string) ([]ap
 				return nil, fs.ErrorObjectNotFound
 			}
 		}
-		return nil, errors.Wrap(err, "failed to list shared links")
+		return nil, fmt.Errorf("failed to list shared links: %w", err)
 	}
 	return result, nil
 }
@@ -788,7 +788,7 @@ func (f *Fs) createShareLink(ctx context.Context, libraryID, remote string) (*ap
 				return nil, fs.ErrorObjectNotFound
 			}
 		}
-		return nil, errors.Wrap(err, "failed to create a shared link")
+		return nil, fmt.Errorf("failed to create a shared link: %w", err)
 	}
 	return result, nil
 }
@@ -830,7 +830,7 @@ func (f *Fs) copyFile(ctx context.Context, srcLibraryID, srcPath, dstLibraryID,
 				return nil, fs.ErrorObjectNotFound
 			}
 		}
-		return nil, errors.Wrap(err, fmt.Sprintf("failed to copy file %s:'%s' to %s:'%s'", srcLibraryID, srcPath, dstLibraryID, dstPath))
+		return nil, fmt.Errorf("failed to copy file %s:'%s' to %s:'%s': %w", srcLibraryID, srcPath, dstLibraryID, dstPath, err)
 	}
 	return f.decodeFileInfo(result), nil
 }
@@ -872,7 +872,7 @@ func (f *Fs) moveFile(ctx context.Context, srcLibraryID, srcPath, dstLibraryID,
 				return nil, fs.ErrorObjectNotFound
 			}
 		}
-		return nil, errors.Wrap(err, fmt.Sprintf("failed to move file %s:'%s' to %s:'%s'", srcLibraryID, srcPath, dstLibraryID, dstPath))
+		return nil, fmt.Errorf("failed to move file %s:'%s' to %s:'%s': %w", srcLibraryID, srcPath, dstLibraryID, dstPath, err)
 	}
 	return f.decodeFileInfo(result), nil
 }
@@ -912,7 +912,7 @@ func (f *Fs) renameFile(ctx context.Context, libraryID, filePath, newname string
 				return nil, fs.ErrorObjectNotFound
 			}
 		}
-		return nil, errors.Wrap(err, fmt.Sprintf("failed to rename file '%s' to '%s'", filePath, newname))
+		return nil, fmt.Errorf("failed to rename file '%s' to '%s': %w", filePath, newname, err)
 	}
 	return f.decodeFileInfo(result), nil
 }
@@ -949,7 +949,7 @@ func (f *Fs) emptyLibraryTrash(ctx context.Context, libraryID string) error {
 				return fs.ErrorObjectNotFound
 			}
 		}
-		return errors.Wrap(err, "failed empty the library trash")
+		return fmt.Errorf("failed empty the library trash: %w", err)
 	}
 	return nil
 }
@@ -991,7 +991,7 @@ func (f *Fs) getDirectoryEntriesAPIv2(ctx context.Context, libraryID, dirPath st
 				return nil, fs.ErrorPermissionDenied
 			}
 		}
-		return nil, errors.Wrap(err, "failed to get directory contents")
+		return nil, fmt.Errorf("failed to get directory contents: %w", err)
 	}
 
 	// Clean up encoded names
@@ -1038,7 +1038,7 @@ func (f *Fs) copyFileAPIv2(ctx context.Context, srcLibraryID, srcPath, dstLibrar
 				return nil, fs.ErrorPermissionDenied
 			}
 		}
-		return nil, errors.Wrap(err, fmt.Sprintf("failed to copy file %s:'%s' to %s:'%s'", srcLibraryID, srcPath, dstLibraryID, dstPath))
+		return nil, fmt.Errorf("failed to copy file %s:'%s' to %s:'%s': %w", srcLibraryID, srcPath, dstLibraryID, dstPath, err)
 	}
 	err = rest.DecodeJSON(resp, &result)
 	if err != nil {
@@ -1090,7 +1090,7 @@ func (f *Fs) renameFileAPIv2(ctx context.Context, libraryID, filePath, newname s
 				return fs.ErrorObjectNotFound
 			}
 		}
-		return errors.Wrap(err, "failed to rename file")
+		return fmt.Errorf("failed to rename file: %w", err)
 	}
 	return nil
 }

backend/sftp/sftp.go

@@ -8,6 +8,7 @@ package sftp
 import (
 	"bytes"
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -20,7 +21,6 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/pkg/sftp"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/accounting"
@@ -384,12 +384,12 @@ func (f *Fs) sftpConnection(ctx context.Context) (c *conn, err error) {
 	}
 	c.sshClient, err = f.dial(ctx, "tcp", f.opt.Host+":"+f.opt.Port, f.config)
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't connect SSH")
+		return nil, fmt.Errorf("couldn't connect SSH: %w", err)
 	}
 	c.sftpClient, err = f.newSftpClient(c.sshClient)
 	if err != nil {
 		_ = c.sshClient.Close()
-		return nil, errors.Wrap(err, "couldn't initialise SFTP")
+		return nil, fmt.Errorf("couldn't initialise SFTP: %w", err)
 	}
 	go c.wait()
 	return c, nil
@@ -468,16 +468,16 @@ func (f *Fs) putSftpConnection(pc **conn, err error) {
 	*pc = nil
 	if err != nil {
 		// work out if this is an expected error
-		underlyingErr := errors.Cause(err)
 		isRegularError := false
-		switch underlyingErr {
-		case os.ErrNotExist:
+		var statusErr *sftp.StatusError
+		var pathErr *os.PathError
+		switch {
+		case errors.Is(err, os.ErrNotExist):
+			isRegularError = true
+		case errors.As(err, &statusErr):
+			isRegularError = true
+		case errors.As(err, &pathErr):
 			isRegularError = true
-		default:
-			switch underlyingErr.(type) {
-			case *sftp.StatusError, *os.PathError:
-				isRegularError = true
-			}
 		}
 		// If not a regular SFTP error code then check the connection
 		if !isRegularError {
@@ -561,7 +561,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	if opt.KnownHostsFile != "" {
 		hostcallback, err := knownhosts.New(env.ShellExpand(opt.KnownHostsFile))
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't parse known_hosts_file")
+			return nil, fmt.Errorf("couldn't parse known_hosts_file: %w", err)
 		}
 		sshConfig.HostKeyCallback = hostcallback
 	}
@@ -579,20 +579,20 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	if (opt.Pass == "" && keyFile == "" && !opt.AskPassword && opt.KeyPem == "") || opt.KeyUseAgent {
 		sshAgentClient, _, err := sshagent.New()
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't connect to ssh-agent")
+			return nil, fmt.Errorf("couldn't connect to ssh-agent: %w", err)
 		}
 		signers, err := sshAgentClient.Signers()
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't read ssh agent signers")
+			return nil, fmt.Errorf("couldn't read ssh agent signers: %w", err)
 		}
 		if keyFile != "" {
 			pubBytes, err := ioutil.ReadFile(keyFile + ".pub")
 			if err != nil {
-				return nil, errors.Wrap(err, "failed to read public key file")
+				return nil, fmt.Errorf("failed to read public key file: %w", err)
 			}
 			pub, _, _, _, err := ssh.ParseAuthorizedKey(pubBytes)
 			if err != nil {
-				return nil, errors.Wrap(err, "failed to parse public key file")
+				return nil, fmt.Errorf("failed to parse public key file: %w", err)
 			}
 			pubM := pub.Marshal()
 			found := false
@@ -617,13 +617,13 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		if opt.KeyPem == "" {
 			key, err = ioutil.ReadFile(keyFile)
 			if err != nil {
-				return nil, errors.Wrap(err, "failed to read private key file")
+				return nil, fmt.Errorf("failed to read private key file: %w", err)
 			}
 		} else {
 			// wrap in quotes because the config is a coming as a literal without them.
 			opt.KeyPem, err = strconv.Unquote("\"" + opt.KeyPem + "\"")
 			if err != nil {
-				return nil, errors.Wrap(err, "pem key not formatted properly")
+				return nil, fmt.Errorf("pem key not formatted properly: %w", err)
 			}
 			key = []byte(opt.KeyPem)
 		}
@@ -641,19 +641,19 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 			signer, err = ssh.ParsePrivateKeyWithPassphrase(key, []byte(clearpass))
 		}
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to parse private key file")
+			return nil, fmt.Errorf("failed to parse private key file: %w", err)
 		}
 
 		// If a public key has been specified then use that
 		if pubkeyFile != "" {
 			certfile, err := ioutil.ReadFile(pubkeyFile)
 			if err != nil {
-				return nil, errors.Wrap(err, "unable to read cert file")
+				return nil, fmt.Errorf("unable to read cert file: %w", err)
 			}
 
 			pk, _, _, _, err := ssh.ParseAuthorizedKey(certfile)
 			if err != nil {
-				return nil, errors.Wrap(err, "unable to parse cert file")
+				return nil, fmt.Errorf("unable to parse cert file: %w", err)
 			}
 
 			// And the signer for this, which includes the private key signer
@@ -669,7 +669,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 			}
 			pubsigner, err := ssh.NewCertSigner(cert, signer)
 			if err != nil {
-				return nil, errors.Wrap(err, "error generating cert signer")
+				return nil, fmt.Errorf("error generating cert signer: %w", err)
 			}
 			sshConfig.Auth = append(sshConfig.Auth, ssh.PublicKeys(pubsigner))
 		} else {
@@ -759,7 +759,7 @@ func NewFsWithConnection(ctx context.Context, f *Fs, name string, root string, m
 	// Make a connection and pool it to return errors early
 	c, err := f.getSftpConnection(ctx)
 	if err != nil {
-		return nil, errors.Wrap(err, "NewFs")
+		return nil, fmt.Errorf("NewFs: %w", err)
 	}
 	cwd, err := c.sftpClient.Getwd()
 	f.putSftpConnection(&c, nil)
@@ -840,7 +840,7 @@ func (f *Fs) dirExists(ctx context.Context, dir string) (bool, error) {
 	}
 	c, err := f.getSftpConnection(ctx)
 	if err != nil {
-		return false, errors.Wrap(err, "dirExists")
+		return false, fmt.Errorf("dirExists: %w", err)
 	}
 	info, err := c.sftpClient.Stat(dir)
 	f.putSftpConnection(&c, err)
@@ -848,7 +848,7 @@ func (f *Fs) dirExists(ctx context.Context, dir string) (bool, error) {
 		if os.IsNotExist(err) {
 			return false, nil
 		}
-		return false, errors.Wrap(err, "dirExists stat failed")
+		return false, fmt.Errorf("dirExists stat failed: %w", err)
 	}
 	if !info.IsDir() {
 		return false, fs.ErrorIsFile
@@ -869,7 +869,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 	root := path.Join(f.absRoot, dir)
 	ok, err := f.dirExists(ctx, root)
 	if err != nil {
-		return nil, errors.Wrap(err, "List failed")
+		return nil, fmt.Errorf("List failed: %w", err)
 	}
 	if !ok {
 		return nil, fs.ErrorDirNotFound
@@ -880,12 +880,12 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 	}
 	c, err := f.getSftpConnection(ctx)
 	if err != nil {
-		return nil, errors.Wrap(err, "List")
+		return nil, fmt.Errorf("List: %w", err)
 	}
 	infos, err := c.sftpClient.ReadDir(sftpDir)
 	f.putSftpConnection(&c, err)
 	if err != nil {
-		return nil, errors.Wrapf(err, "error listing %q", dir)
+		return nil, fmt.Errorf("error listing %q: %w", dir, err)
 	}
 	for _, info := range infos {
 		remote := path.Join(dir, info.Name())
@@ -924,7 +924,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 func (f *Fs) Put(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	err := f.mkParentDir(ctx, src.Remote())
 	if err != nil {
-		return nil, errors.Wrap(err, "Put mkParentDir failed")
+		return nil, fmt.Errorf("Put mkParentDir failed: %w", err)
 	}
 	// Temporary object under construction
 	o := &Object{
@@ -959,7 +959,7 @@ func (f *Fs) mkdir(ctx context.Context, dirPath string) error {
 	}
 	ok, err := f.dirExists(ctx, dirPath)
 	if err != nil {
-		return errors.Wrap(err, "mkdir dirExists failed")
+		return fmt.Errorf("mkdir dirExists failed: %w", err)
 	}
 	if ok {
 		return nil
@@ -971,12 +971,12 @@ func (f *Fs) mkdir(ctx context.Context, dirPath string) error {
 	}
 	c, err := f.getSftpConnection(ctx)
 	if err != nil {
-		return errors.Wrap(err, "mkdir")
+		return fmt.Errorf("mkdir: %w", err)
 	}
 	err = c.sftpClient.Mkdir(dirPath)
 	f.putSftpConnection(&c, err)
 	if err != nil {
-		return errors.Wrapf(err, "mkdir %q failed", dirPath)
+		return fmt.Errorf("mkdir %q failed: %w", dirPath, err)
 	}
 	return nil
 }
@@ -993,7 +993,7 @@ func (f *Fs) Rmdir(ctx context.Context, dir string) error {
 	// delete recursively with RemoveDirectory
 	entries, err := f.List(ctx, dir)
 	if err != nil {
-		return errors.Wrap(err, "Rmdir")
+		return fmt.Errorf("Rmdir: %w", err)
 	}
 	if len(entries) != 0 {
 		return fs.ErrorDirectoryNotEmpty
@@ -1002,7 +1002,7 @@ func (f *Fs) Rmdir(ctx context.Context, dir string) error {
 	root := path.Join(f.absRoot, dir)
 	c, err := f.getSftpConnection(ctx)
 	if err != nil {
-		return errors.Wrap(err, "Rmdir")
+		return fmt.Errorf("Rmdir: %w", err)
 	}
 	err = c.sftpClient.RemoveDirectory(root)
 	f.putSftpConnection(&c, err)
@@ -1018,11 +1018,11 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	}
 	err := f.mkParentDir(ctx, remote)
 	if err != nil {
-		return nil, errors.Wrap(err, "Move mkParentDir failed")
+		return nil, fmt.Errorf("Move mkParentDir failed: %w", err)
 	}
 	c, err := f.getSftpConnection(ctx)
 	if err != nil {
-		return nil, errors.Wrap(err, "Move")
+		return nil, fmt.Errorf("Move: %w", err)
 	}
 	err = c.sftpClient.Rename(
 		srcObj.path(),
@@ -1030,11 +1030,11 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	)
 	f.putSftpConnection(&c, err)
 	if err != nil {
-		return nil, errors.Wrap(err, "Move Rename failed")
+		return nil, fmt.Errorf("Move Rename failed: %w", err)
 	}
 	dstObj, err := f.NewObject(ctx, remote)
 	if err != nil {
-		return nil, errors.Wrap(err, "Move NewObject failed")
+		return nil, fmt.Errorf("Move NewObject failed: %w", err)
 	}
 	return dstObj, nil
 }
@@ -1059,7 +1059,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 	// Check if destination exists
 	ok, err := f.dirExists(ctx, dstPath)
 	if err != nil {
-		return errors.Wrap(err, "DirMove dirExists dst failed")
+		return fmt.Errorf("DirMove dirExists dst failed: %w", err)
 	}
 	if ok {
 		return fs.ErrorDirExists
@@ -1068,13 +1068,13 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 	// Make sure the parent directory exists
 	err = f.mkdir(ctx, path.Dir(dstPath))
 	if err != nil {
-		return errors.Wrap(err, "DirMove mkParentDir dst failed")
+		return fmt.Errorf("DirMove mkParentDir dst failed: %w", err)
 	}
 
 	// Do the move
 	c, err := f.getSftpConnection(ctx)
 	if err != nil {
-		return errors.Wrap(err, "DirMove")
+		return fmt.Errorf("DirMove: %w", err)
 	}
 	err = c.sftpClient.Rename(
 		srcPath,
@@ -1082,7 +1082,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 	)
 	f.putSftpConnection(&c, err)
 	if err != nil {
-		return errors.Wrapf(err, "DirMove Rename(%q,%q) failed", srcPath, dstPath)
+		return fmt.Errorf("DirMove Rename(%q,%q) failed: %w", srcPath, dstPath, err)
 	}
 	return nil
 }
@@ -1094,13 +1094,13 @@ func (f *Fs) run(ctx context.Context, cmd string) ([]byte, error) {
 
 	c, err := f.getSftpConnection(ctx)
 	if err != nil {
-		return nil, errors.Wrap(err, "run: get SFTP connection")
+		return nil, fmt.Errorf("run: get SFTP connection: %w", err)
 	}
 	defer f.putSftpConnection(&c, err)
 
 	session, err := c.sshClient.NewSession()
 	if err != nil {
-		return nil, errors.Wrap(err, "run: get SFTP session")
+		return nil, fmt.Errorf("run: get SFTP session: %w", err)
 	}
 	defer func() {
 		_ = session.Close()
@@ -1112,7 +1112,7 @@ func (f *Fs) run(ctx context.Context, cmd string) ([]byte, error) {
 
 	err = session.Run(cmd)
 	if err != nil {
-		return nil, errors.Wrapf(err, "failed to run %q: %s", cmd, stderr.Bytes())
+		return nil, fmt.Errorf("failed to run %q: %s: %w", cmd, stderr.Bytes(), err)
 	}
 
 	return stdout.Bytes(), nil
@@ -1186,7 +1186,7 @@ func (f *Fs) About(ctx context.Context) (*fs.Usage, error) {
 	}
 	stdout, err := f.run(ctx, "df -k "+escapedPath)
 	if err != nil {
-		return nil, errors.Wrap(err, "your remote may not support About")
+		return nil, fmt.Errorf("your remote may not support About: %w", err)
 	}
 
 	usageTotal, usageUsed, usageAvail := parseUsage(stdout)
@@ -1257,12 +1257,12 @@ func (o *Object) Hash(ctx context.Context, r hash.Type) (string, error) {
 
 	c, err := o.fs.getSftpConnection(ctx)
 	if err != nil {
-		return "", errors.Wrap(err, "Hash get SFTP connection")
+		return "", fmt.Errorf("Hash get SFTP connection: %w", err)
 	}
 	session, err := c.sshClient.NewSession()
 	o.fs.putSftpConnection(&c, err)
 	if err != nil {
-		return "", errors.Wrap(err, "Hash put SFTP connection")
+		return "", fmt.Errorf("Hash put SFTP connection: %w", err)
 	}
 
 	var stdout, stderr bytes.Buffer
@@ -1366,7 +1366,7 @@ func (o *Object) setMetadata(info os.FileInfo) {
 func (f *Fs) stat(ctx context.Context, remote string) (info os.FileInfo, err error) {
 	c, err := f.getSftpConnection(ctx)
 	if err != nil {
-		return nil, errors.Wrap(err, "stat")
+		return nil, fmt.Errorf("stat: %w", err)
 	}
 	absPath := path.Join(f.absRoot, remote)
 	info, err = c.sftpClient.Stat(absPath)
@@ -1381,7 +1381,7 @@ func (o *Object) stat(ctx context.Context) error {
 		if os.IsNotExist(err) {
 			return fs.ErrorObjectNotFound
 		}
-		return errors.Wrap(err, "stat failed")
+		return fmt.Errorf("stat failed: %w", err)
 	}
 	if info.IsDir() {
 		return fs.ErrorIsDir
@@ -1399,16 +1399,16 @@ func (o *Object) SetModTime(ctx context.Context, modTime time.Time) error {
 	}
 	c, err := o.fs.getSftpConnection(ctx)
 	if err != nil {
-		return errors.Wrap(err, "SetModTime")
+		return fmt.Errorf("SetModTime: %w", err)
 	}
 	err = c.sftpClient.Chtimes(o.path(), modTime, modTime)
 	o.fs.putSftpConnection(&c, err)
 	if err != nil {
-		return errors.Wrap(err, "SetModTime failed")
+		return fmt.Errorf("SetModTime failed: %w", err)
 	}
 	err = o.stat(ctx)
 	if err != nil {
-		return errors.Wrap(err, "SetModTime stat failed")
+		return fmt.Errorf("SetModTime stat failed: %w", err)
 	}
 	return nil
 }
@@ -1487,17 +1487,17 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 	}
 	c, err := o.fs.getSftpConnection(ctx)
 	if err != nil {
-		return nil, errors.Wrap(err, "Open")
+		return nil, fmt.Errorf("Open: %w", err)
 	}
 	sftpFile, err := c.sftpClient.Open(o.path())
 	o.fs.putSftpConnection(&c, err)
 	if err != nil {
-		return nil, errors.Wrap(err, "Open failed")
+		return nil, fmt.Errorf("Open failed: %w", err)
 	}
 	if offset > 0 {
 		off, err := sftpFile.Seek(offset, io.SeekStart)
 		if err != nil || off != offset {
-			return nil, errors.Wrap(err, "Open Seek failed")
+			return nil, fmt.Errorf("Open Seek failed: %w", err)
 		}
 	}
 	in = readers.NewLimitedReadCloser(o.fs.newObjectReader(sftpFile), limit)
@@ -1526,12 +1526,12 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	o.sha1sum = nil
 	c, err := o.fs.getSftpConnection(ctx)
 	if err != nil {
-		return errors.Wrap(err, "Update")
+		return fmt.Errorf("Update: %w", err)
 	}
 	file, err := c.sftpClient.OpenFile(o.path(), os.O_WRONLY|os.O_CREATE|os.O_TRUNC)
 	o.fs.putSftpConnection(&c, err)
 	if err != nil {
-		return errors.Wrap(err, "Update Create failed")
+		return fmt.Errorf("Update Create failed: %w", err)
 	}
 	// remove the file if upload failed
 	remove := func() {
@@ -1551,18 +1551,18 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	_, err = file.ReadFrom(&sizeReader{Reader: in, size: src.Size()})
 	if err != nil {
 		remove()
-		return errors.Wrap(err, "Update ReadFrom failed")
+		return fmt.Errorf("Update ReadFrom failed: %w", err)
 	}
 	err = file.Close()
 	if err != nil {
 		remove()
-		return errors.Wrap(err, "Update Close failed")
+		return fmt.Errorf("Update Close failed: %w", err)
 	}
 
 	// Set the mod time - this stats the object if o.fs.opt.SetModTime == true
 	err = o.SetModTime(ctx, src.ModTime(ctx))
 	if err != nil {
-		return errors.Wrap(err, "Update SetModTime failed")
+		return fmt.Errorf("Update SetModTime failed: %w", err)
 	}
 
 	// Stat the file after the upload to read its stats back if o.fs.opt.SetModTime == false
@@ -1576,7 +1576,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 			o.size = src.Size()
 			o.mode = os.FileMode(0666) // regular file
 		} else if err != nil {
-			return errors.Wrap(err, "Update stat failed")
+			return fmt.Errorf("Update stat failed: %w", err)
 		}
 	}
 
@@ -1587,7 +1587,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 func (o *Object) Remove(ctx context.Context) error {
 	c, err := o.fs.getSftpConnection(ctx)
 	if err != nil {
-		return errors.Wrap(err, "Remove")
+		return fmt.Errorf("Remove: %w", err)
 	}
 	err = c.sftpClient.Remove(o.path())
 	o.fs.putSftpConnection(&c, err)

backend/sharefile/api/types.go

@@ -2,10 +2,9 @@
 package api
 
 import (
+	"errors"
 	"fmt"
 	"time"
-
-	"github.com/pkg/errors"
 )
 
 // ListRequestSelect should be used in $select for Items/Children
@@ -122,7 +121,7 @@ type UploadFinishResponse struct {
 // ID returns the ID of the first response if available
 func (finish *UploadFinishResponse) ID() (string, error) {
 	if finish.Error {
-		return "", errors.Errorf("upload failed: %s (%d)", finish.ErrorMessage, finish.ErrorCode)
+		return "", fmt.Errorf("upload failed: %s (%d)", finish.ErrorMessage, finish.ErrorCode)
 	}
 	if len(finish.Value) == 0 {
 		return "", errors.New("upload failed: no results returned")

backend/sharefile/sharefile.go

@@ -74,6 +74,7 @@ Which is control chars + [' ', '*', '.', '/', ':', '<', '>', '?', '|']
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -83,7 +84,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/sharefile/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
@@ -144,7 +144,7 @@ func init() {
 				subdomain := auth.Form.Get("subdomain")
 				apicp := auth.Form.Get("apicp")
 				if subdomain == "" || apicp == "" {
-					return errors.Errorf("subdomain or apicp not found in response: %+v", auth.Form)
+					return fmt.Errorf("subdomain or apicp not found in response: %+v", auth.Form)
 				}
 				endpoint := "https://" + subdomain + "." + apicp
 				m.Set("endpoint", endpoint)
@@ -334,7 +334,7 @@ func (f *Fs) readMetaDataForIDPath(ctx context.Context, id, path string, directo
 			}
 			return nil, fs.ErrorDirNotFound
 		}
-		return nil, errors.Wrap(err, "couldn't find item")
+		return nil, fmt.Errorf("couldn't find item: %w", err)
 	}
 	if directoriesOnly && item.Type != api.ItemTypeFolder {
 		return nil, fs.ErrorIsFile
@@ -386,10 +386,10 @@ func errorHandler(resp *http.Response) error {
 
 func checkUploadChunkSize(cs fs.SizeSuffix) error {
 	if cs < minChunkSize {
-		return errors.Errorf("ChunkSize: %s is less than %s", cs, minChunkSize)
+		return fmt.Errorf("ChunkSize: %s is less than %s", cs, minChunkSize)
 	}
 	if cs > maxChunkSize {
-		return errors.Errorf("ChunkSize: %s is greater than %s", cs, maxChunkSize)
+		return fmt.Errorf("ChunkSize: %s is greater than %s", cs, maxChunkSize)
 	}
 	return nil
 }
@@ -444,7 +444,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	var ts *oauthutil.TokenSource
 	client, ts, err = oauthutil.NewClient(ctx, name, m, oauthConfig)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to configure sharefile")
+		return nil, fmt.Errorf("failed to configure sharefile: %w", err)
 	}
 
 	ci := fs.GetConfig(ctx)
@@ -477,23 +477,23 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	const serverTimezone = "America/New_York"
 	timezone, err := tzdata.Open(serverTimezone)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to open timezone db")
+		return nil, fmt.Errorf("failed to open timezone db: %w", err)
 	}
 	tzdata, err := ioutil.ReadAll(timezone)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to read timezone")
+		return nil, fmt.Errorf("failed to read timezone: %w", err)
 	}
 	_ = timezone.Close()
 	f.location, err = time.LoadLocationFromTZData(serverTimezone, tzdata)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to load location from timezone")
+		return nil, fmt.Errorf("failed to load location from timezone: %w", err)
 	}
 
 	// Find ID of user's root folder
 	if opt.RootFolderID == "" {
 		item, err := f.readMetaDataForID(ctx, opt.RootFolderID, true, false)
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't find root ID")
+			return nil, fmt.Errorf("couldn't find root ID: %w", err)
 		}
 		f.rootID = item.ID
 	} else {
@@ -639,7 +639,7 @@ func (f *Fs) CreateDir(ctx context.Context, pathID, leaf string) (newID string,
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return "", errors.Wrap(err, "CreateDir")
+		return "", fmt.Errorf("CreateDir: %w", err)
 	}
 	return info.ID, nil
 }
@@ -671,7 +671,7 @@ func (f *Fs) listAll(ctx context.Context, dirID string, directoriesOnly bool, fi
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return found, errors.Wrap(err, "couldn't list files")
+		return found, fmt.Errorf("couldn't list files: %w", err)
 	}
 	for i := range result.Value {
 		item := &result.Value[i]
@@ -825,7 +825,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
 			return true
 		})
 		if err != nil {
-			return errors.Wrap(err, "purgeCheck")
+			return fmt.Errorf("purgeCheck: %w", err)
 		}
 		if found {
 			return fs.ErrorDirectoryNotEmpty
@@ -900,7 +900,7 @@ func (f *Fs) updateItem(ctx context.Context, id, leaf, directoryID string, modTi
 		// Parse it back into a time
 		newModTime, err := time.Parse(time.RFC3339Nano, isoTime)
 		if err != nil {
-			return nil, errors.Wrap(err, "updateItem: time parse")
+			return nil, fmt.Errorf("updateItem: time parse: %w", err)
 		}
 		modTime = &newModTime
 	}
@@ -934,7 +934,7 @@ func (f *Fs) move(ctx context.Context, isFile bool, id, oldLeaf, newLeaf, oldDir
 	// To demonstrate bug
 	// item, err = f.updateItem(ctx, id, newLeaf, newDirectoryID, nil)
 	// if err != nil {
-	// 	return nil, errors.Wrap(err, "Move rename leaf")
+	// 	return nil, fmt.Errorf("Move rename leaf: %w", err)
 	// }
 	// return item, nil
 	doRenameLeaf := oldLeaf != newLeaf
@@ -947,7 +947,7 @@ func (f *Fs) move(ctx context.Context, isFile bool, id, oldLeaf, newLeaf, oldDir
 		tmpLeaf := newLeaf + "." + random.String(8)
 		item, err = f.updateItem(ctx, id, tmpLeaf, "", nil)
 		if err != nil {
-			return nil, errors.Wrap(err, "Move rename leaf")
+			return nil, fmt.Errorf("Move rename leaf: %w", err)
 		}
 	}
 
@@ -956,7 +956,7 @@ func (f *Fs) move(ctx context.Context, isFile bool, id, oldLeaf, newLeaf, oldDir
 	if doMove {
 		item, err = f.updateItem(ctx, id, "", newDirectoryID, nil)
 		if err != nil {
-			return nil, errors.Wrap(err, "Move directory")
+			return nil, fmt.Errorf("Move directory: %w", err)
 		}
 	}
 
@@ -964,7 +964,7 @@ func (f *Fs) move(ctx context.Context, isFile bool, id, oldLeaf, newLeaf, oldDir
 	if doRenameLeaf {
 		item, err = f.updateItem(ctx, id, newLeaf, "", nil)
 		if err != nil {
-			return nil, errors.Wrap(err, "Move rename leaf")
+			return nil, fmt.Errorf("Move rename leaf: %w", err)
 		}
 	}
 
@@ -1079,7 +1079,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (dst fs.Obj
 
 	sameName := strings.ToLower(srcLeaf) == strings.ToLower(dstLeaf)
 	if sameName && srcParentID == dstParentID {
-		return nil, errors.Errorf("copy: can't copy to a file in the same directory whose name only differs in case: %q vs %q", srcLeaf, dstLeaf)
+		return nil, fmt.Errorf("copy: can't copy to a file in the same directory whose name only differs in case: %q vs %q", srcLeaf, dstLeaf)
 	}
 
 	// Discover whether we can just copy directly or not
@@ -1095,7 +1095,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (dst fs.Obj
 		if err == fs.ErrorObjectNotFound || err == fs.ErrorDirNotFound {
 			directCopy = true
 		} else if err != nil {
-			return nil, errors.Wrap(err, "copy: failed to examine destination dir")
+			return nil, fmt.Errorf("copy: failed to examine destination dir: %w", err)
 		} else {
 			// otherwise need to copy via a temporary directory
 		}
@@ -1109,17 +1109,17 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (dst fs.Obj
 		tmpDir := "rclone-temp-dir-" + random.String(16)
 		err = f.Mkdir(ctx, tmpDir)
 		if err != nil {
-			return nil, errors.Wrap(err, "copy: failed to make temp dir")
+			return nil, fmt.Errorf("copy: failed to make temp dir: %w", err)
 		}
 		defer func() {
 			rmdirErr := f.Rmdir(ctx, tmpDir)
 			if rmdirErr != nil && err == nil {
-				err = errors.Wrap(rmdirErr, "copy: failed to remove temp dir")
+				err = fmt.Errorf("copy: failed to remove temp dir: %w", rmdirErr)
 			}
 		}()
 		tmpDirID, err := f.dirCache.FindDir(ctx, tmpDir, false)
 		if err != nil {
-			return nil, errors.Wrap(err, "copy: failed to find temp dir")
+			return nil, fmt.Errorf("copy: failed to find temp dir: %w", err)
 		}
 		copyTargetDirID = tmpDirID
 	}
@@ -1221,7 +1221,7 @@ func (o *Object) Size() int64 {
 // setMetaData sets the metadata from info
 func (o *Object) setMetaData(info *api.Item) (err error) {
 	if info.Type != api.ItemTypeFile {
-		return errors.Wrapf(fs.ErrorNotAFile, "%q is %q", o.remote, info.Type)
+		return fmt.Errorf("%q is %q: %w", o.remote, info.Type, fs.ErrorNotAFile)
 	}
 	o.hasMetaData = true
 	o.size = info.Size
@@ -1302,7 +1302,7 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "open: fetch download specification")
+		return nil, fmt.Errorf("open: fetch download specification: %w", err)
 	}
 
 	fs.FixRangeOption(options, o.size)
@@ -1317,7 +1317,7 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "open")
+		return nil, fmt.Errorf("open: %w", err)
 	}
 	return resp.Body, err
 }
@@ -1373,7 +1373,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "upload get specification")
+		return fmt.Errorf("upload get specification: %w", err)
 	}
 
 	// If file is large then upload in parts
@@ -1398,7 +1398,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "upload file")
+		return fmt.Errorf("upload file: %w", err)
 	}
 	return o.checkUploadResponse(ctx, &finish)
 }
@@ -1434,7 +1434,7 @@ func (f *Fs) remove(ctx context.Context, id string) (err error) {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "remove")
+		return fmt.Errorf("remove: %w", err)
 	}
 	return nil
 }
@@ -1443,7 +1443,7 @@ func (f *Fs) remove(ctx context.Context, id string) (err error) {
 func (o *Object) Remove(ctx context.Context) error {
 	err := o.readMetaData(ctx)
 	if err != nil {
-		return errors.Wrap(err, "Remove: Failed to read metadata")
+		return fmt.Errorf("Remove: Failed to read metadata: %w", err)
 	}
 	return o.fs.remove(ctx, o.id)
 }

backend/sharefile/upload.go

@@ -15,7 +15,6 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/sharefile/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/accounting"
@@ -55,7 +54,7 @@ func (f *Fs) newLargeUpload(ctx context.Context, o *Object, in io.Reader, src fs
 	case "threaded":
 		streamed = false
 	default:
-		return nil, errors.Errorf("can't use method %q with newLargeUpload", info.Method)
+		return nil, fmt.Errorf("can't use method %q with newLargeUpload", info.Method)
 	}
 
 	threads := f.ci.Transfers
@@ -87,7 +86,7 @@ func (up *largeUpload) parseUploadFinishResponse(respBody []byte) (err error) {
 	err = json.Unmarshal(respBody, &finish)
 	if err != nil {
 		// Sometimes the unmarshal fails in which case return the body
-		return errors.Errorf("upload: bad response: %q", bytes.TrimSpace(respBody))
+		return fmt.Errorf("upload: bad response: %q", bytes.TrimSpace(respBody))
 	}
 	return up.o.checkUploadResponse(up.ctx, &finish)
 }
@@ -240,7 +239,7 @@ outer:
 
 	// check size read is correct
 	if eof && err == nil && up.size >= 0 && up.size != offset {
-		err = errors.Errorf("upload: short read: read %d bytes expected %d", up.size, offset)
+		err = fmt.Errorf("upload: short read: read %d bytes expected %d", up.size, offset)
 	}
 
 	// read any errors

backend/sia/sia.go

@@ -3,6 +3,7 @@ package sia
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -11,18 +12,16 @@ import (
 	"strings"
 	"time"
 
-	"github.com/rclone/rclone/fs/config"
-	"github.com/rclone/rclone/lib/encoder"
-
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/sia/api"
 	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/fs/config"
 	"github.com/rclone/rclone/fs/config/configmap"
 	"github.com/rclone/rclone/fs/config/configstruct"
 	"github.com/rclone/rclone/fs/config/obscure"
 	"github.com/rclone/rclone/fs/fserrors"
 	"github.com/rclone/rclone/fs/fshttp"
 	"github.com/rclone/rclone/fs/hash"
+	"github.com/rclone/rclone/lib/encoder"
 	"github.com/rclone/rclone/lib/pacer"
 	"github.com/rclone/rclone/lib/rest"
 )
@@ -460,7 +459,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	if opt.APIPassword != "" {
 		opt.APIPassword, err = obscure.Reveal(opt.APIPassword)
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't decrypt API password")
+			return nil, fmt.Errorf("couldn't decrypt API password: %w", err)
 		}
 		f.srv.SetUserPass("", opt.APIPassword)
 	}
@@ -474,7 +473,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		}
 		_, err := f.NewObject(ctx, remote)
 		if err != nil {
-			if errors.Cause(err) == fs.ErrorObjectNotFound || errors.Cause(err) == fs.ErrorNotAFile {
+			if errors.Is(err, fs.ErrorObjectNotFound) || errors.Is(err, fs.ErrorNotAFile) {
 				// File doesn't exist so return old f
 				f.root = root
 				return f, nil
@@ -493,7 +492,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 func errorHandler(resp *http.Response) error {
 	body, err := rest.ReadBody(resp)
 	if err != nil {
-		return errors.Wrap(err, "error when trying to read error body")
+		return fmt.Errorf("error when trying to read error body: %w", err)
 	}
 	// Decode error response
 	errResponse := new(api.Error)

backend/sugarsync/sugarsync.go

@@ -14,6 +14,7 @@ To work around this we use the remote "TestSugarSync:Test" to test with.
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -25,7 +26,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/sugarsync/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
@@ -79,7 +79,7 @@ func init() {
 			opt := new(Options)
 			err := configstruct.Set(m, opt)
 			if err != nil {
-				return nil, errors.Wrap(err, "failed to read options")
+				return nil, fmt.Errorf("failed to read options: %w", err)
 			}
 
 			switch config.State {
@@ -124,7 +124,7 @@ func init() {
 				//	return shouldRetry(ctx, resp, err)
 				//})
 				if err != nil {
-					return nil, errors.Wrap(err, "failed to get token")
+					return nil, fmt.Errorf("failed to get token: %w", err)
 				}
 				opt.RefreshToken = resp.Header.Get("Location")
 				m.Set("refresh_token", opt.RefreshToken)
@@ -309,7 +309,7 @@ func (f *Fs) readMetaDataForID(ctx context.Context, ID string) (info *api.File,
 		if resp != nil && resp.StatusCode == http.StatusNotFound {
 			return nil, fs.ErrorObjectNotFound
 		}
-		return nil, errors.Wrap(err, "failed to get authorization")
+		return nil, fmt.Errorf("failed to get authorization: %w", err)
 	}
 	return info, nil
 }
@@ -343,7 +343,7 @@ func (f *Fs) getAuthToken(ctx context.Context) error {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "failed to get authorization")
+		return fmt.Errorf("failed to get authorization: %w", err)
 	}
 	f.opt.Authorization = resp.Header.Get("Location")
 	f.authExpiry = authResponse.Expiration
@@ -391,7 +391,7 @@ func (f *Fs) getUser(ctx context.Context) (user *api.User, err error) {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to get user")
+		return nil, fmt.Errorf("failed to get user: %w", err)
 	}
 	return user, nil
 }
@@ -445,7 +445,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		if strings.HasSuffix(f.opt.RootID, "/contents") {
 			f.opt.RootID = f.opt.RootID[:len(f.opt.RootID)-9]
 		} else {
-			return nil, errors.Errorf("unexpected rootID %q", f.opt.RootID)
+			return nil, fmt.Errorf("unexpected rootID %q", f.opt.RootID)
 		}
 		// Cache the results
 		f.m.Set("root_id", f.opt.RootID)
@@ -497,13 +497,13 @@ var findError = regexp.MustCompile(`<h3>(.*?)</h3>`)
 func errorHandler(resp *http.Response) (err error) {
 	body, err := rest.ReadBody(resp)
 	if err != nil {
-		return errors.Wrap(err, "error reading error out of body")
+		return fmt.Errorf("error reading error out of body: %w", err)
 	}
 	match := findError.FindSubmatch(body)
 	if match == nil || len(match) < 2 || len(match[1]) == 0 {
-		return errors.Errorf("HTTP error %v (%v) returned body: %q", resp.StatusCode, resp.Status, body)
+		return fmt.Errorf("HTTP error %v (%v) returned body: %q", resp.StatusCode, resp.Status, body)
 	}
-	return errors.Errorf("HTTP error %v (%v): %s", resp.StatusCode, resp.Status, match[1])
+	return fmt.Errorf("HTTP error %v (%v): %s", resp.StatusCode, resp.Status, match[1])
 }
 
 // rootSlash returns root with a slash on if it is empty, otherwise empty string
@@ -596,7 +596,7 @@ func (f *Fs) CreateDir(ctx context.Context, pathID, leaf string) (newID string,
 			return "", err
 		}
 		if !found {
-			return "", errors.Errorf("couldn't find ID for newly created directory %q", leaf)
+			return "", fmt.Errorf("couldn't find ID for newly created directory %q", leaf)
 		}
 
 	}
@@ -636,7 +636,7 @@ OUTER:
 			return shouldRetry(ctx, resp, err)
 		})
 		if err != nil {
-			return found, errors.Wrap(err, "couldn't list files")
+			return found, fmt.Errorf("couldn't list files: %w", err)
 		}
 		if fileFn != nil {
 			for i := range result.Files {
@@ -873,7 +873,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	srcPath := srcObj.fs.rootSlash() + srcObj.remote
 	dstPath := f.rootSlash() + remote
 	if strings.ToLower(srcPath) == strings.ToLower(dstPath) {
-		return nil, errors.Errorf("can't copy %q -> %q as are same name when lowercase", srcPath, dstPath)
+		return nil, fmt.Errorf("can't copy %q -> %q as are same name when lowercase", srcPath, dstPath)
 	}
 
 	// Create temporary object
@@ -1247,7 +1247,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	if o.id == "" {
 		o.id, err = o.fs.createFile(ctx, directoryID, leaf, fs.MimeType(ctx, src))
 		if err != nil {
-			return errors.Wrap(err, "failed to create file")
+			return fmt.Errorf("failed to create file: %w", err)
 		}
 		if o.id == "" {
 			return errors.New("failed to create file: no ID")
@@ -1280,7 +1280,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "failed to upload file")
+		return fmt.Errorf("failed to upload file: %w", err)
 	}
 
 	o.hasMetaData = false

backend/swift/swift.go

@@ -5,6 +5,7 @@ import (
 	"bufio"
 	"bytes"
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"net/url"
@@ -15,7 +16,6 @@ import (
 
 	"github.com/google/uuid"
 	"github.com/ncw/swift/v2"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
 	"github.com/rclone/rclone/fs/config/configmap"
@@ -381,7 +381,7 @@ func swiftConnection(ctx context.Context, opt *Options, name string) (*swift.Con
 	if opt.EnvAuth {
 		err := c.ApplyEnvironment()
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to read environment variables")
+			return nil, fmt.Errorf("failed to read environment variables: %w", err)
 		}
 	}
 	StorageUrl, AuthToken := c.StorageUrl, c.AuthToken // nolint
@@ -423,7 +423,7 @@ func swiftConnection(ctx context.Context, opt *Options, name string) (*swift.Con
 func checkUploadChunkSize(cs fs.SizeSuffix) error {
 	const minChunkSize = fs.SizeSuffixBase
 	if cs < minChunkSize {
-		return errors.Errorf("%s is less than %s", cs, minChunkSize)
+		return fmt.Errorf("%s is less than %s", cs, minChunkSize)
 	}
 	return nil
 }
@@ -499,7 +499,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	}
 	err = checkUploadChunkSize(opt.ChunkSize)
 	if err != nil {
-		return nil, errors.Wrap(err, "swift: chunk size")
+		return nil, fmt.Errorf("swift: chunk size: %w", err)
 	}
 
 	c, err := swiftConnection(ctx, opt, name)
@@ -670,7 +670,7 @@ func (f *Fs) listContainers(ctx context.Context) (entries fs.DirEntries, err err
 		return shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "container listing failed")
+		return nil, fmt.Errorf("container listing failed: %w", err)
 	}
 	for _, container := range containers {
 		f.cache.MarkOK(container.Name)
@@ -762,7 +762,7 @@ func (f *Fs) About(ctx context.Context) (*fs.Usage, error) {
 		return shouldRetry(ctx, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "container listing failed")
+		return nil, fmt.Errorf("container listing failed: %w", err)
 	}
 	var total, objects int64
 	for _, c := range containers {

backend/tardigrade/fs.go

@@ -6,13 +6,13 @@ package tardigrade
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"path"
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
 	"github.com/rclone/rclone/fs/config/configmap"
@@ -64,12 +64,12 @@ func init() {
 
 				access, err := uplink.RequestAccessWithPassphrase(context.TODO(), satellite, apiKey, passphrase)
 				if err != nil {
-					return nil, errors.Wrap(err, "couldn't create access grant")
+					return nil, fmt.Errorf("couldn't create access grant: %w", err)
 				}
 
 				serializedAccess, err := access.Serialize()
 				if err != nil {
-					return nil, errors.Wrap(err, "couldn't serialize access grant")
+					return nil, fmt.Errorf("couldn't serialize access grant: %w", err)
 				}
 				m.Set("satellite_address", satellite)
 				m.Set("access_grant", serializedAccess)
@@ -78,7 +78,7 @@ func init() {
 				config.FileDeleteKey(name, "api_key")
 				config.FileDeleteKey(name, "passphrase")
 			} else {
-				return nil, errors.Errorf("invalid provider type: %s", provider)
+				return nil, fmt.Errorf("invalid provider type: %s", provider)
 			}
 			return nil, nil
 		},
@@ -188,24 +188,24 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (_ fs.Fs,
 	if f.opts.Access != "" {
 		access, err = uplink.ParseAccess(f.opts.Access)
 		if err != nil {
-			return nil, errors.Wrap(err, "tardigrade: access")
+			return nil, fmt.Errorf("tardigrade: access: %w", err)
 		}
 	}
 
 	if access == nil && f.opts.SatelliteAddress != "" && f.opts.APIKey != "" && f.opts.Passphrase != "" {
 		access, err = uplink.RequestAccessWithPassphrase(ctx, f.opts.SatelliteAddress, f.opts.APIKey, f.opts.Passphrase)
 		if err != nil {
-			return nil, errors.Wrap(err, "tardigrade: access")
+			return nil, fmt.Errorf("tardigrade: access: %w", err)
 		}
 
 		serializedAccess, err := access.Serialize()
 		if err != nil {
-			return nil, errors.Wrap(err, "tardigrade: access")
+			return nil, fmt.Errorf("tardigrade: access: %w", err)
 		}
 
 		err = config.SetValueAndSave(f.name, "access_grant", serializedAccess)
 		if err != nil {
-			return nil, errors.Wrap(err, "tardigrade: access")
+			return nil, fmt.Errorf("tardigrade: access: %w", err)
 		}
 	}
 
@@ -237,7 +237,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (_ fs.Fs,
 		if bucketName != "" && bucketPath != "" {
 			_, err = project.StatBucket(ctx, bucketName)
 			if err != nil {
-				return f, errors.Wrap(err, "tardigrade: bucket")
+				return f, fmt.Errorf("tardigrade: bucket: %w", err)
 			}
 
 			object, err := project.StatObject(ctx, bucketName, bucketPath)
@@ -274,7 +274,7 @@ func (f *Fs) connect(ctx context.Context) (project *uplink.Project, err error) {
 
 	project, err = cfg.OpenProject(ctx, f.access)
 	if err != nil {
-		return nil, errors.Wrap(err, "tardigrade: project")
+		return nil, fmt.Errorf("tardigrade: project: %w", err)
 	}
 
 	return

backend/tardigrade/object.go

@@ -5,11 +5,11 @@ package tardigrade
 
 import (
 	"context"
+	"errors"
 	"io"
 	"path"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/hash"
 	"github.com/rclone/rclone/lib/bucket"

backend/union/entry.go

@@ -2,11 +2,11 @@ package union
 
 import (
 	"context"
+	"fmt"
 	"io"
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/union/upstream"
 	"github.com/rclone/rclone/fs"
 )
@@ -82,7 +82,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	multithread(len(entries), func(i int) {
 		if o, ok := entries[i].(*upstream.Object); ok {
 			err := o.Update(ctx, readers[i], src, options...)
-			errs[i] = errors.Wrap(err, o.UpstreamFs().Name())
+			errs[i] = fmt.Errorf("%s: %w", o.UpstreamFs().Name(), err)
 		} else {
 			errs[i] = fs.ErrorNotAFile
 		}
@@ -101,7 +101,7 @@ func (o *Object) Remove(ctx context.Context) error {
 	multithread(len(entries), func(i int) {
 		if o, ok := entries[i].(*upstream.Object); ok {
 			err := o.Remove(ctx)
-			errs[i] = errors.Wrap(err, o.UpstreamFs().Name())
+			errs[i] = fmt.Errorf("%s: %w", o.UpstreamFs().Name(), err)
 		} else {
 			errs[i] = fs.ErrorNotAFile
 		}
@@ -120,7 +120,7 @@ func (o *Object) SetModTime(ctx context.Context, t time.Time) error {
 	multithread(len(entries), func(i int) {
 		if o, ok := entries[i].(*upstream.Object); ok {
 			err := o.SetModTime(ctx, t)
-			errs[i] = errors.Wrap(err, o.UpstreamFs().Name())
+			errs[i] = fmt.Errorf("%s: %w", o.UpstreamFs().Name(), err)
 		} else {
 			errs[i] = fs.ErrorNotAFile
 		}

backend/union/policy/policy.go

@@ -2,12 +2,12 @@ package policy
 
 import (
 	"context"
+	"fmt"
 	"math/rand"
 	"path"
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/union/upstream"
 	"github.com/rclone/rclone/fs"
 )
@@ -44,7 +44,7 @@ func registerPolicy(name string, p Policy) {
 func Get(name string) (Policy, error) {
 	p, ok := policies[strings.ToLower(name)]
 	if !ok {
-		return nil, errors.Errorf("didn't find policy called %q", name)
+		return nil, fmt.Errorf("didn't find policy called %q", name)
 	}
 	return p, nil
 }

backend/union/union.go

@@ -3,6 +3,7 @@ package union
 import (
 	"bufio"
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"path"
@@ -11,7 +12,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/union/policy"
 	"github.com/rclone/rclone/backend/union/upstream"
 	"github.com/rclone/rclone/fs"
@@ -99,7 +99,7 @@ func (f *Fs) wrapEntries(entries ...upstream.Entry) (entry, error) {
 			cd:        entries,
 		}, nil
 	default:
-		return nil, errors.Errorf("unknown object type %T", e)
+		return nil, fmt.Errorf("unknown object type %T", e)
 	}
 }
 
@@ -132,7 +132,7 @@ func (f *Fs) Rmdir(ctx context.Context, dir string) error {
 	errs := Errors(make([]error, len(upstreams)))
 	multithread(len(upstreams), func(i int) {
 		err := upstreams[i].Rmdir(ctx, dir)
-		errs[i] = errors.Wrap(err, upstreams[i].Name())
+		errs[i] = fmt.Errorf("%s: %w", upstreams[i].Name(), err)
 	})
 	return errs.Err()
 }
@@ -162,7 +162,7 @@ func (f *Fs) Mkdir(ctx context.Context, dir string) error {
 	errs := Errors(make([]error, len(upstreams)))
 	multithread(len(upstreams), func(i int) {
 		err := upstreams[i].Mkdir(ctx, dir)
-		errs[i] = errors.Wrap(err, upstreams[i].Name())
+		errs[i] = fmt.Errorf("%s: %w", upstreams[i].Name(), err)
 	})
 	return errs.Err()
 }
@@ -186,10 +186,10 @@ func (f *Fs) Purge(ctx context.Context, dir string) error {
 	errs := Errors(make([]error, len(upstreams)))
 	multithread(len(upstreams), func(i int) {
 		err := upstreams[i].Features().Purge(ctx, dir)
-		if errors.Cause(err) == fs.ErrorDirNotFound {
+		if errors.Is(err, fs.ErrorDirNotFound) {
 			err = nil
 		}
-		errs[i] = errors.Wrap(err, upstreams[i].Name())
+		errs[i] = fmt.Errorf("%s: %w", upstreams[i].Name(), err)
 	})
 	return errs.Err()
 }
@@ -264,7 +264,7 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 		su := entries[i].UpstreamFs()
 		o, ok := entries[i].(*upstream.Object)
 		if !ok {
-			errs[i] = errors.Wrap(fs.ErrorNotAFile, su.Name())
+			errs[i] = fmt.Errorf("%s: %w", su.Name(), fs.ErrorNotAFile)
 			return
 		}
 		var du *upstream.Fs
@@ -274,7 +274,7 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 			}
 		}
 		if du == nil {
-			errs[i] = errors.Wrap(fs.ErrorCantMove, su.Name()+":"+remote)
+			errs[i] = fmt.Errorf("%s: %s: %w", su.Name(), remote, fs.ErrorCantMove)
 			return
 		}
 		srcObj := o.UnWrap()
@@ -286,7 +286,7 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 		// Do the Move or Copy
 		dstObj, err := do(ctx, srcObj, remote)
 		if err != nil || dstObj == nil {
-			errs[i] = errors.Wrap(err, su.Name())
+			errs[i] = fmt.Errorf("%s: %w", su.Name(), err)
 			return
 		}
 		objs[i] = du.WrapObject(dstObj)
@@ -294,7 +294,7 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 		if duFeatures.Move == nil {
 			err = srcObj.Remove(ctx)
 			if err != nil {
-				errs[i] = errors.Wrap(err, su.Name())
+				errs[i] = fmt.Errorf("%s: %w", su.Name(), err)
 				return
 			}
 		}
@@ -345,18 +345,18 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 			}
 		}
 		if du == nil {
-			errs[i] = errors.Wrap(fs.ErrorCantDirMove, su.Name()+":"+su.Root())
+			errs[i] = fmt.Errorf("%s: %s: %w", su.Name(), su.Root(), fs.ErrorCantDirMove)
 			return
 		}
 		err := du.Features().DirMove(ctx, su.Fs, srcRemote, dstRemote)
-		errs[i] = errors.Wrap(err, du.Name()+":"+du.Root())
+		errs[i] = fmt.Errorf("%s: %w", du.Name()+":"+du.Root(), err)
 	})
 	errs = errs.FilterNil()
 	if len(errs) == 0 {
 		return nil
 	}
 	for _, e := range errs {
-		if errors.Cause(e) != fs.ErrorDirExists {
+		if !errors.Is(e, fs.ErrorDirExists) {
 			return errs
 		}
 	}
@@ -477,7 +477,7 @@ func (f *Fs) put(ctx context.Context, in io.Reader, src fs.ObjectInfo, stream bo
 			o, err = u.Put(ctx, readers[i], src, options...)
 		}
 		if err != nil {
-			errs[i] = errors.Wrap(err, u.Name())
+			errs[i] = fmt.Errorf("%s: %w", u.Name(), err)
 			return
 		}
 		objs[i] = u.WrapObject(o)
@@ -537,7 +537,7 @@ func (f *Fs) About(ctx context.Context) (*fs.Usage, error) {
 	}
 	for _, u := range f.upstreams {
 		usg, err := u.About(ctx)
-		if errors.Cause(err) == fs.ErrorDirNotFound {
+		if errors.Is(err, fs.ErrorDirNotFound) {
 			continue
 		}
 		if err != nil {
@@ -593,7 +593,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 		u := f.upstreams[i]
 		entries, err := u.List(ctx, dir)
 		if err != nil {
-			errs[i] = errors.Wrap(err, u.Name())
+			errs[i] = fmt.Errorf("%s: %w", u.Name(), err)
 			return
 		}
 		uEntries := make([]upstream.Entry, len(entries))
@@ -604,7 +604,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 	})
 	if len(errs) == len(errs.FilterNil()) {
 		errs = errs.Map(func(e error) error {
-			if errors.Cause(e) == fs.ErrorDirNotFound {
+			if errors.Is(e, fs.ErrorDirNotFound) {
 				return nil
 			}
 			return e
@@ -657,13 +657,13 @@ func (f *Fs) ListR(ctx context.Context, dir string, callback fs.ListRCallback) (
 			err = walk.ListR(ctx, u, dir, true, -1, walk.ListAll, callback)
 		}
 		if err != nil {
-			errs[i] = errors.Wrap(err, u.Name())
+			errs[i] = fmt.Errorf("%s: %w", u.Name(), err)
 			return
 		}
 	})
 	if len(errs) == len(errs.FilterNil()) {
 		errs = errs.Map(func(e error) error {
-			if errors.Cause(e) == fs.ErrorDirNotFound {
+			if errors.Is(e, fs.ErrorDirNotFound) {
 				return nil
 			}
 			return e
@@ -688,7 +688,7 @@ func (f *Fs) NewObject(ctx context.Context, remote string) (fs.Object, error) {
 		u := f.upstreams[i]
 		o, err := u.NewObject(ctx, remote)
 		if err != nil && err != fs.ErrorObjectNotFound {
-			errs[i] = errors.Wrap(err, u.Name())
+			errs[i] = fmt.Errorf("%s: %w", u.Name(), err)
 			return
 		}
 		objs[i] = u.WrapObject(o)
@@ -777,7 +777,7 @@ func (f *Fs) Shutdown(ctx context.Context) error {
 		u := f.upstreams[i]
 		if do := u.Features().Shutdown; do != nil {
 			err := do(ctx)
-			errs[i] = errors.Wrap(err, u.Name())
+			errs[i] = fmt.Errorf("%s: %w", u.Name(), err)
 		}
 	})
 	return errs.Err()

backend/union/upstream/upstream.go

@@ -2,6 +2,8 @@ package upstream
 
 import (
 	"context"
+	"errors"
+	"fmt"
 	"io"
 	"math"
 	"path"
@@ -11,7 +13,6 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/cache"
 	"github.com/rclone/rclone/fs/fspath"
@@ -133,7 +134,7 @@ func (f *Fs) WrapEntry(e fs.DirEntry) (Entry, error) {
 	case fs.Directory:
 		return f.WrapDirectory(e.(fs.Directory)), nil
 	default:
-		return nil, errors.Errorf("unknown object type %T", e)
+		return nil, fmt.Errorf("unknown object type %T", e)
 	}
 }
 
@@ -335,7 +336,7 @@ func (f *Fs) updateUsageCore(lock bool) error {
 	usage, err := f.RootFs.Features().About(ctx)
 	if err != nil {
 		f.cacheUpdate = false
-		if errors.Cause(err) == fs.ErrorDirNotFound {
+		if errors.Is(err, fs.ErrorDirNotFound) {
 			err = nil
 		}
 		return err

backend/uptobox/uptobox.go

@@ -3,6 +3,7 @@ package uptobox
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -14,7 +15,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/uptobox/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
@@ -408,7 +408,7 @@ func (f *Fs) uploadFile(ctx context.Context, in io.Reader, size int64, filename
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't upload file")
+		return nil, fmt.Errorf("couldn't upload file: %w", err)
 	}
 	return &ul, nil
 }
@@ -438,10 +438,10 @@ func (f *Fs) move(ctx context.Context, dstPath string, fileID string) (err error
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "couldn't move file")
+		return fmt.Errorf("couldn't move file: %w", err)
 	}
 	if info.StatusCode != 0 {
-		return errors.Errorf("move: api error: %d - %s", info.StatusCode, info.Message)
+		return fmt.Errorf("move: api error: %d - %s", info.StatusCode, info.Message)
 	}
 	return err
 }
@@ -460,10 +460,10 @@ func (f *Fs) updateFileInformation(ctx context.Context, update *api.UpdateFileIn
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "couldn't update file info")
+		return fmt.Errorf("couldn't update file info: %w", err)
 	}
 	if info.StatusCode != 0 {
-		return errors.Errorf("updateFileInfo: api error: %d - %s", info.StatusCode, info.Message)
+		return fmt.Errorf("updateFileInfo: api error: %d - %s", info.StatusCode, info.Message)
 	}
 	return err
 }
@@ -493,7 +493,7 @@ func (f *Fs) putUnchecked(ctx context.Context, in io.Reader, remote string, size
 		return nil, err
 	}
 	if info.StatusCode != 0 {
-		return nil, errors.Errorf("putUnchecked: api error: %d - %s", info.StatusCode, info.Message)
+		return nil, fmt.Errorf("putUnchecked: api error: %d - %s", info.StatusCode, info.Message)
 	}
 	// we need to have a safe name for the upload to work
 	tmpName := "rcloneTemp" + random.String(8)
@@ -681,7 +681,7 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	if needMove {
 		err := f.mkDirs(ctx, strings.Trim(dstBase, "/"))
 		if err != nil {
-			return nil, errors.Wrap(err, "move: failed to make destination dirs")
+			return nil, fmt.Errorf("move: failed to make destination dirs: %w", err)
 		}
 
 		err = f.move(ctx, dstBase, srcObj.code)
@@ -694,7 +694,7 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	if needRename {
 		err := f.updateFileInformation(ctx, &api.UpdateFileInformation{Token: f.opt.AccessToken, FileCode: srcObj.code, NewName: f.opt.Enc.FromStandardName(dstLeaf)})
 		if err != nil {
-			return nil, errors.Wrap(err, "move: failed final rename")
+			return nil, fmt.Errorf("move: failed final rename: %w", err)
 		}
 	}
 
@@ -751,7 +751,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 	srcPath := srcFs.dirPath(srcRemote)
 	srcInfo, err := f.readMetaDataForPath(ctx, srcPath, &api.MetadataRequestOptions{Limit: 1})
 	if err != nil {
-		return errors.Wrap(err, "dirmove: source not found")
+		return fmt.Errorf("dirmove: source not found: %w", err)
 	}
 	// check if the destination allready exists
 	dstPath := f.dirPath(dstRemote)
@@ -764,13 +764,13 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 	dstBase, dstName := f.splitPathFull(dstRemote)
 	err = f.mkDirs(ctx, strings.Trim(dstBase, "/"))
 	if err != nil {
-		return errors.Wrap(err, "dirmove: failed to create dirs")
+		return fmt.Errorf("dirmove: failed to create dirs: %w", err)
 	}
 
 	// find the destination parent dir
 	dstInfo, err = f.readMetaDataForPath(ctx, dstBase, &api.MetadataRequestOptions{Limit: 1})
 	if err != nil {
-		return errors.Wrap(err, "dirmove: failed to read destination")
+		return fmt.Errorf("dirmove: failed to read destination: %w", err)
 	}
 	srcBase, srcName := srcFs.splitPathFull(srcRemote)
 
@@ -784,7 +784,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 		tmpName := "rcloneTemp" + random.String(8)
 		err = f.renameDir(ctx, srcInfo.Data.CurrentFolder.FolderID, tmpName)
 		if err != nil {
-			return errors.Wrap(err, "dirmove: failed initial rename")
+			return fmt.Errorf("dirmove: failed initial rename: %w", err)
 		}
 	}
 
@@ -807,7 +807,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 			return shouldRetry(ctx, resp, err)
 		})
 		if err != nil {
-			return errors.Wrap(err, "dirmove: failed to move")
+			return fmt.Errorf("dirmove: failed to move: %w", err)
 		}
 		if apiErr.StatusCode != 0 {
 			return apiErr
@@ -818,7 +818,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 	if needRename {
 		err = f.renameDir(ctx, srcInfo.Data.CurrentFolder.FolderID, dstName)
 		if err != nil {
-			return errors.Wrap(err, "dirmove: failed final rename")
+			return fmt.Errorf("dirmove: failed final rename: %w", err)
 		}
 	}
 	return nil
@@ -848,10 +848,10 @@ func (f *Fs) copy(ctx context.Context, dstPath string, fileID string) (err error
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "couldn't copy file")
+		return fmt.Errorf("couldn't copy file: %w", err)
 	}
 	if info.StatusCode != 0 {
-		return errors.Errorf("copy: api error: %d - %s", info.StatusCode, info.Message)
+		return fmt.Errorf("copy: api error: %d - %s", info.StatusCode, info.Message)
 	}
 	return err
 }
@@ -871,7 +871,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 
 	err := f.mkDirs(ctx, path.Join(f.root, dstBase))
 	if err != nil {
-		return nil, errors.Wrap(err, "copy: failed to make destination dirs")
+		return nil, fmt.Errorf("copy: failed to make destination dirs: %w", err)
 	}
 
 	err = f.copy(ctx, f.dirPath(dstBase), srcObj.code)
@@ -881,13 +881,13 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 
 	newObj, err := f.NewObject(ctx, path.Join(dstBase, srcLeaf))
 	if err != nil {
-		return nil, errors.Wrap(err, "copy: couldn't find copied object")
+		return nil, fmt.Errorf("copy: couldn't find copied object: %w", err)
 	}
 
 	if needRename {
 		err := f.updateFileInformation(ctx, &api.UpdateFileInformation{Token: f.opt.AccessToken, FileCode: newObj.(*Object).code, NewName: f.opt.Enc.FromStandardName(dstLeaf)})
 		if err != nil {
-			return nil, errors.Wrap(err, "copy: failed final rename")
+			return nil, fmt.Errorf("copy: failed final rename: %w", err)
 		}
 		newObj.(*Object).remote = remote
 	}
@@ -970,7 +970,7 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "open: failed to get download link")
+		return nil, fmt.Errorf("open: failed to get download link: %w", err)
 	}
 
 	fs.FixRangeOption(options, o.size)
@@ -1010,7 +1010,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	// delete duplicate object after successful upload
 	err = o.Remove(ctx)
 	if err != nil {
-		return errors.Wrap(err, "failed to remove old version")
+		return fmt.Errorf("failed to remove old version: %w", err)
 	}
 
 	// Replace guts of old object with new one
@@ -1038,7 +1038,7 @@ func (o *Object) Remove(ctx context.Context) error {
 		return err
 	}
 	if info.StatusCode != 0 {
-		return errors.Errorf("remove: api error: %d - %s", info.StatusCode, info.Message)
+		return fmt.Errorf("remove: api error: %d - %s", info.StatusCode, info.Message)
 	}
 	return nil
 }

backend/webdav/odrvcookie/fetch.go

@@ -13,7 +13,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/fshttp"
 	"golang.org/x/net/publicsuffix"
@@ -122,12 +121,12 @@ func (ca *CookieAuth) Cookies(ctx context.Context) (*CookieResponse, error) {
 func (ca *CookieAuth) getSPCookie(conf *SharepointSuccessResponse) (*CookieResponse, error) {
 	spRoot, err := url.Parse(ca.endpoint)
 	if err != nil {
-		return nil, errors.Wrap(err, "Error while constructing endpoint URL")
+		return nil, fmt.Errorf("error while constructing endpoint URL: %w", err)
 	}
 
 	u, err := url.Parse(spRoot.Scheme + "://" + spRoot.Host + "/_forms/default.aspx?wa=wsignin1.0")
 	if err != nil {
-		return nil, errors.Wrap(err, "Error while constructing login URL")
+		return nil, fmt.Errorf("error while constructing login URL: %w", err)
 	}
 
 	// To authenticate with davfs or anything else we need two cookies (rtFa and FedAuth)
@@ -143,7 +142,7 @@ func (ca *CookieAuth) getSPCookie(conf *SharepointSuccessResponse) (*CookieRespo
 
 	// Send the previously acquired Token as a Post parameter
 	if _, err = client.Post(u.String(), "text/xml", strings.NewReader(conf.Body.Token)); err != nil {
-		return nil, errors.Wrap(err, "Error while grabbing cookies from endpoint: %v")
+		return nil, fmt.Errorf("error while grabbing cookies from endpoint: %w", err)
 	}
 
 	cookieResponse := CookieResponse{}
@@ -171,7 +170,7 @@ func (ca *CookieAuth) getSPToken(ctx context.Context) (conf *SharepointSuccessRe
 
 	buf := &bytes.Buffer{}
 	if err := t.Execute(buf, reqData); err != nil {
-		return nil, errors.Wrap(err, "Error while filling auth token template")
+		return nil, fmt.Errorf("error while filling auth token template: %w", err)
 	}
 
 	// Create and execute the first request which returns an auth token for the sharepoint service
@@ -184,7 +183,7 @@ func (ca *CookieAuth) getSPToken(ctx context.Context) (conf *SharepointSuccessRe
 	client := fshttp.NewClient(ctx)
 	resp, err := client.Do(req)
 	if err != nil {
-		return nil, errors.Wrap(err, "Error while logging in to endpoint")
+		return nil, fmt.Errorf("error while logging in to endpoint: %w", err)
 	}
 	defer fs.CheckClose(resp.Body, &err)
 
@@ -209,7 +208,7 @@ func (ca *CookieAuth) getSPToken(ctx context.Context) (conf *SharepointSuccessRe
 	}
 
 	if err != nil {
-		return nil, errors.Wrap(err, "Error while reading endpoint response")
+		return nil, fmt.Errorf("error while reading endpoint response: %w", err)
 	}
 	return
 }

backend/webdav/webdav.go

@@ -12,6 +12,7 @@ import (
 	"context"
 	"crypto/tls"
 	"encoding/xml"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -23,7 +24,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/webdav/api"
 	"github.com/rclone/rclone/backend/webdav/odrvcookie"
 	"github.com/rclone/rclone/fs"
@@ -303,7 +303,7 @@ func (f *Fs) readMetaDataForPath(ctx context.Context, path string, depth string)
 		}
 	}
 	if err != nil {
-		return nil, errors.Wrap(err, "read metadata failed")
+		return nil, fmt.Errorf("read metadata failed: %w", err)
 	}
 	if len(result.Responses) < 1 {
 		return nil, fs.ErrorObjectNotFound
@@ -322,7 +322,7 @@ func (f *Fs) readMetaDataForPath(ctx context.Context, path string, depth string)
 func errorHandler(resp *http.Response) error {
 	body, err := rest.ReadBody(resp)
 	if err != nil {
-		return errors.Wrap(err, "error when trying to read error from body")
+		return fmt.Errorf("error when trying to read error from body: %w", err)
 	}
 	// Decode error response
 	errResponse := new(api.Error)
@@ -387,7 +387,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		var err error
 		opt.Pass, err = obscure.Reveal(opt.Pass)
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't decrypt password")
+			return nil, fmt.Errorf("couldn't decrypt password: %w", err)
 		}
 	}
 	if opt.Vendor == "" {
@@ -465,7 +465,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		}
 		_, err := f.NewObject(ctx, remote)
 		if err != nil {
-			if errors.Cause(err) == fs.ErrorObjectNotFound || errors.Cause(err) == fs.ErrorIsDir {
+			if errors.Is(err, fs.ErrorObjectNotFound) || errors.Is(err, fs.ErrorIsDir) {
 				// File doesn't exist so return old f
 				f.root = root
 				return f, nil
@@ -503,7 +503,7 @@ func (f *Fs) fetchBearerToken(cmd string) (string, error) {
 		if stderrString == "" {
 			stderrString = stdoutString
 		}
-		return "", errors.Wrapf(err, "failed to get bearer token using %q: %s", f.opt.BearerTokenCommand, stderrString)
+		return "", fmt.Errorf("failed to get bearer token using %q: %s: %w", f.opt.BearerTokenCommand, stderrString, err)
 	}
 	return stdoutString, nil
 }
@@ -673,12 +673,12 @@ func (f *Fs) listAll(ctx context.Context, dir string, directoriesOnly bool, file
 				return found, fs.ErrorDirNotFound
 			}
 		}
-		return found, errors.Wrap(err, "couldn't list files")
+		return found, fmt.Errorf("couldn't list files: %w", err)
 	}
 	//fmt.Printf("result = %#v", &result)
 	baseURL, err := rest.URLJoin(f.endpoint, opts.Path)
 	if err != nil {
-		return false, errors.Wrap(err, "couldn't join URL")
+		return false, fmt.Errorf("couldn't join URL: %w", err)
 	}
 	for i := range result.Responses {
 		item := &result.Responses[i]
@@ -947,7 +947,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
 		return f.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "rmdir failed")
+		return fmt.Errorf("rmdir failed: %w", err)
 	}
 	// FIXME parse Multistatus response
 	return nil
@@ -986,11 +986,11 @@ func (f *Fs) copyOrMove(ctx context.Context, src fs.Object, remote string, metho
 	dstPath := f.filePath(remote)
 	err := f.mkParentDir(ctx, dstPath)
 	if err != nil {
-		return nil, errors.Wrap(err, "Copy mkParentDir failed")
+		return nil, fmt.Errorf("Copy mkParentDir failed: %w", err)
 	}
 	destinationURL, err := rest.URLJoin(f.endpoint, dstPath)
 	if err != nil {
-		return nil, errors.Wrap(err, "copyOrMove couldn't join URL")
+		return nil, fmt.Errorf("copyOrMove couldn't join URL: %w", err)
 	}
 	var resp *http.Response
 	opts := rest.Opts{
@@ -1010,11 +1010,11 @@ func (f *Fs) copyOrMove(ctx context.Context, src fs.Object, remote string, metho
 		return f.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "Copy call failed")
+		return nil, fmt.Errorf("Copy call failed: %w", err)
 	}
 	dstObj, err := f.NewObject(ctx, remote)
 	if err != nil {
-		return nil, errors.Wrap(err, "Copy NewObject failed")
+		return nil, fmt.Errorf("Copy NewObject failed: %w", err)
 	}
 	return dstObj, nil
 }
@@ -1077,18 +1077,18 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 		return fs.ErrorDirExists
 	}
 	if err != fs.ErrorDirNotFound {
-		return errors.Wrap(err, "DirMove dirExists dst failed")
+		return fmt.Errorf("DirMove dirExists dst failed: %w", err)
 	}
 
 	// Make sure the parent directory exists
 	err = f.mkParentDir(ctx, dstPath)
 	if err != nil {
-		return errors.Wrap(err, "DirMove mkParentDir dst failed")
+		return fmt.Errorf("DirMove mkParentDir dst failed: %w", err)
 	}
 
 	destinationURL, err := rest.URLJoin(f.endpoint, dstPath)
 	if err != nil {
-		return errors.Wrap(err, "DirMove couldn't join URL")
+		return fmt.Errorf("DirMove couldn't join URL: %w", err)
 	}
 
 	var resp *http.Response
@@ -1106,7 +1106,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 		return f.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "DirMove MOVE call failed")
+		return fmt.Errorf("DirMove MOVE call failed: %w", err)
 	}
 	return nil
 }
@@ -1148,7 +1148,7 @@ func (f *Fs) About(ctx context.Context) (*fs.Usage, error) {
 		return f.shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "about call failed")
+		return nil, fmt.Errorf("about call failed: %w", err)
 	}
 	usage := &fs.Usage{}
 	if i, err := strconv.ParseInt(q.Used, 10, 64); err == nil && i >= 0 {
@@ -1289,7 +1289,7 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (err error) {
 	err = o.fs.mkParentDir(ctx, o.filePath())
 	if err != nil {
-		return errors.Wrap(err, "Update mkParentDir failed")
+		return fmt.Errorf("Update mkParentDir failed: %w", err)
 	}
 
 	size := src.Size()

backend/yandex/yandex.go

@@ -3,6 +3,7 @@ package yandex
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"log"
@@ -13,7 +14,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/yandex/api"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
@@ -249,7 +249,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 
 	token, err := oauthutil.GetToken(name, m)
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't read OAuth token")
+		return nil, fmt.Errorf("couldn't read OAuth token: %w", err)
 	}
 	if token.RefreshToken == "" {
 		return nil, errors.New("unable to get RefreshToken. If you are upgrading from older versions of rclone, please run `rclone config` and re-configure this backend")
@@ -258,13 +258,13 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		token.TokenType = "OAuth"
 		err = oauthutil.PutToken(name, m, token, false)
 		if err != nil {
-			return nil, errors.Wrap(err, "couldn't save OAuth token")
+			return nil, fmt.Errorf("couldn't save OAuth token: %w", err)
 		}
 		log.Printf("Automatically upgraded OAuth config.")
 	}
 	oAuthClient, _, err := oauthutil.NewClient(ctx, name, m, oauthConfig)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to configure Yandex")
+		return nil, fmt.Errorf("failed to configure Yandex: %w", err)
 	}
 
 	ci := fs.GetConfig(ctx)
@@ -309,7 +309,7 @@ func (f *Fs) itemToDirEntry(ctx context.Context, remote string, object *api.Reso
 	case "dir":
 		t, err := time.Parse(time.RFC3339Nano, object.Modified)
 		if err != nil {
-			return nil, errors.Wrap(err, "error parsing time in directory item")
+			return nil, fmt.Errorf("error parsing time in directory item: %w", err)
 		}
 		d := fs.NewDir(remote, t).SetSize(object.Size)
 		return d, nil
@@ -560,19 +560,19 @@ func (f *Fs) waitForJob(ctx context.Context, location string) (err error) {
 		var status api.AsyncStatus
 		err = json.Unmarshal(body, &status)
 		if err != nil {
-			return errors.Wrapf(err, "async status result not JSON: %q", body)
+			return fmt.Errorf("async status result not JSON: %q: %w", body, err)
 		}
 
 		switch status.Status {
 		case "failure":
-			return errors.Errorf("async operation returned %q", status.Status)
+			return fmt.Errorf("async operation returned %q", status.Status)
 		case "success":
 			return nil
 		}
 
 		time.Sleep(1 * time.Second)
 	}
-	return errors.Errorf("async operation didn't complete after %v", f.ci.TimeoutOrInfinite())
+	return fmt.Errorf("async operation didn't complete after %v", f.ci.TimeoutOrInfinite())
 }
 
 func (f *Fs) delete(ctx context.Context, path string, hardDelete bool) (err error) {
@@ -607,7 +607,7 @@ func (f *Fs) delete(ctx context.Context, path string, hardDelete bool) (err erro
 		var info api.AsyncInfo
 		err = json.Unmarshal(body, &info)
 		if err != nil {
-			return errors.Wrapf(err, "async info result not JSON: %q", body)
+			return fmt.Errorf("async info result not JSON: %q: %w", body, err)
 		}
 		return f.waitForJob(ctx, info.HRef)
 	}
@@ -623,7 +623,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
 		//send request to get list of objects in this directory.
 		info, err := f.readMetaDataForPath(ctx, root, &api.ResourceInfoRequestOptions{})
 		if err != nil {
-			return errors.Wrap(err, "rmdir failed")
+			return fmt.Errorf("rmdir failed: %w", err)
 		}
 		if len(info.Embedded.Items) != 0 {
 			return fs.ErrorDirectoryNotEmpty
@@ -683,7 +683,7 @@ func (f *Fs) copyOrMove(ctx context.Context, method, src, dst string, overwrite
 		var info api.AsyncInfo
 		err = json.Unmarshal(body, &info)
 		if err != nil {
-			return errors.Wrapf(err, "async info result not JSON: %q", body)
+			return fmt.Errorf("async info result not JSON: %q: %w", body, err)
 		}
 		return f.waitForJob(ctx, info.HRef)
 	}
@@ -714,7 +714,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	err = f.copyOrMove(ctx, "copy", srcObj.filePath(), dstPath, false)
 
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't copy file")
+		return nil, fmt.Errorf("couldn't copy file: %w", err)
 	}
 
 	return f.NewObject(ctx, remote)
@@ -744,7 +744,7 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	err = f.copyOrMove(ctx, "move", srcObj.filePath(), dstPath, false)
 
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't move file")
+		return nil, fmt.Errorf("couldn't move file: %w", err)
 	}
 
 	return f.NewObject(ctx, remote)
@@ -795,7 +795,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 	err = f.copyOrMove(ctx, "move", srcPath, dstPath, false)
 
 	if err != nil {
-		return errors.Wrap(err, "couldn't move directory")
+		return fmt.Errorf("couldn't move directory: %w", err)
 	}
 	return nil
 }
@@ -831,9 +831,9 @@ func (f *Fs) PublicLink(ctx context.Context, remote string, expire fs.Duration,
 	}
 	if err != nil {
 		if unlink {
-			return "", errors.Wrap(err, "couldn't remove public link")
+			return "", fmt.Errorf("couldn't remove public link: %w", err)
 		}
-		return "", errors.Wrap(err, "couldn't create public link")
+		return "", fmt.Errorf("couldn't create public link: %w", err)
 	}
 
 	info, err := f.readMetaDataForPath(ctx, f.filePath(remote), &api.ResourceInfoRequestOptions{})
@@ -934,7 +934,7 @@ func (o *Object) setMetaData(info *api.ResourceInfoResponse) (err error) {
 	}
 	t, err := time.Parse(time.RFC3339Nano, modTimeString)
 	if err != nil {
-		return errors.Wrapf(err, "failed to parse modtime from %q", modTimeString)
+		return fmt.Errorf("failed to parse modtime from %q: %w", modTimeString, err)
 	}
 	o.modTime = t
 	return nil

backend/zoho/zoho.go

@@ -4,6 +4,7 @@ package zoho
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -14,7 +15,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/lib/encoder"
 	"github.com/rclone/rclone/lib/pacer"
 	"github.com/rclone/rclone/lib/random"
@@ -81,7 +81,7 @@ func init() {
 			getSrvs := func() (authSrv, apiSrv *rest.Client, err error) {
 				oAuthClient, _, err := oauthutil.NewClient(ctx, name, m, oauthConfig)
 				if err != nil {
-					return nil, nil, errors.Wrap(err, "failed to load oAuthClient")
+					return nil, nil, fmt.Errorf("failed to load oAuthClient: %w", err)
 				}
 				authSrv = rest.NewClient(oAuthClient).SetRoot(accountsURL)
 				apiSrv = rest.NewClient(oAuthClient).SetRoot(rootURL)
@@ -100,13 +100,13 @@ func init() {
 				// it's own custom type
 				token, err := oauthutil.GetToken(name, m)
 				if err != nil {
-					return nil, errors.Wrap(err, "failed to read token")
+					return nil, fmt.Errorf("failed to read token: %w", err)
 				}
 				if token.TokenType != "Zoho-oauthtoken" {
 					token.TokenType = "Zoho-oauthtoken"
 					err = oauthutil.PutToken(name, m, token, false)
 					if err != nil {
-						return nil, errors.Wrap(err, "failed to configure token")
+						return nil, fmt.Errorf("failed to configure token: %w", err)
 					}
 				}
 
@@ -478,7 +478,7 @@ OUTER:
 			return shouldRetry(ctx, resp, err)
 		})
 		if err != nil {
-			return found, errors.Wrap(err, "couldn't list files")
+			return found, fmt.Errorf("couldn't list files: %w", err)
 		}
 		if len(result.Items) == 0 {
 			break
@@ -670,7 +670,7 @@ func (f *Fs) upload(ctx context.Context, name string, parent string, size int64,
 	params.Set("override-name-exist", strconv.FormatBool(true))
 	formReader, contentType, overhead, err := rest.MultipartUpload(ctx, in, nil, "content", name)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to make multipart upload")
+		return nil, fmt.Errorf("failed to make multipart upload: %w", err)
 	}
 
 	contentLength := overhead + size
@@ -692,7 +692,7 @@ func (f *Fs) upload(ctx context.Context, name string, parent string, size int64,
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "upload error")
+		return nil, fmt.Errorf("upload error: %w", err)
 	}
 	if len(uploadResponse.Uploads) != 1 {
 		return nil, errors.New("upload: invalid response")
@@ -774,7 +774,7 @@ func (f *Fs) deleteObject(ctx context.Context, id string) (err error) {
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return errors.Wrap(err, "delete object failed")
+		return fmt.Errorf("delete object failed: %w", err)
 	}
 	return nil
 }
@@ -801,7 +801,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
 
 	err = f.deleteObject(ctx, rootID)
 	if err != nil {
-		return errors.Wrap(err, "rmdir failed")
+		return fmt.Errorf("rmdir failed: %w", err)
 	}
 	f.dirCache.FlushDir(dir)
 	return nil
@@ -844,7 +844,7 @@ func (f *Fs) rename(ctx context.Context, id, name string) (item *api.Item, err e
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "rename failed")
+		return nil, fmt.Errorf("rename failed: %w", err)
 	}
 	return &result.Item, nil
 }
@@ -897,7 +897,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "couldn't copy file")
+		return nil, fmt.Errorf("couldn't copy file: %w", err)
 	}
 	// Server acts weird some times make sure we actually got
 	// an item
@@ -911,7 +911,7 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	// the correct name after copy
 	if f.opt.Enc.ToStandardName(result.Items[0].Attributes.Name) != leaf {
 		if err = dstObject.rename(ctx, leaf); err != nil {
-			return nil, errors.Wrap(err, "copy: couldn't rename copied file")
+			return nil, fmt.Errorf("copy: couldn't rename copied file: %w", err)
 		}
 	}
 	return dstObject, nil
@@ -942,7 +942,7 @@ func (f *Fs) move(ctx context.Context, srcID, parentID string) (item *api.Item,
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		return nil, errors.Wrap(err, "move failed")
+		return nil, fmt.Errorf("move failed: %w", err)
 	}
 	// Server acts weird some times make sure our array actually contains
 	// a file
@@ -992,7 +992,7 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	if needRename && needMove {
 		tmpLeaf := "rcloneTemp" + random.String(8)
 		if err = srcObj.rename(ctx, tmpLeaf); err != nil {
-			return nil, errors.Wrap(err, "move: pre move rename failed")
+			return nil, fmt.Errorf("move: pre move rename failed: %w", err)
 		}
 	}
 
@@ -1012,7 +1012,7 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 	// rename the leaf to its final name
 	if needRename {
 		if err = dstObject.rename(ctx, dstLeaf); err != nil {
-			return nil, errors.Wrap(err, "move: couldn't rename moved file")
+			return nil, fmt.Errorf("move: couldn't rename moved file: %w", err)
 		}
 	}
 	return dstObject, nil
@@ -1046,7 +1046,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 	// do the move
 	_, err = f.move(ctx, srcID, dstDirectoryID)
 	if err != nil {
-		return errors.Wrap(err, "couldn't dir move")
+		return fmt.Errorf("couldn't dir move: %w", err)
 	}
 
 	// Can't copy and change name in one step so we have to check if we have
@@ -1054,7 +1054,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 	if srcLeaf != dstLeaf {
 		_, err = f.rename(ctx, srcID, dstLeaf)
 		if err != nil {
-			return errors.Wrap(err, "dirmove: couldn't rename moved dir")
+			return fmt.Errorf("dirmove: couldn't rename moved dir: %w", err)
 		}
 	}
 	srcFs.dirCache.FlushDir(srcRemote)
@@ -1261,7 +1261,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 
 	// upload was successfull, need to delete old object before rename
 	if err = o.Remove(ctx); err != nil {
-		return errors.Wrap(err, "failed to remove old object")
+		return fmt.Errorf("failed to remove old object: %w", err)
 	}
 	if err = o.setMetaData(info); err != nil {
 		return err

cmd/about/about.go

@@ -3,10 +3,10 @@ package about
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"os"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config/flags"
@@ -98,11 +98,11 @@ see complete list in [documentation](https://rclone.org/overview/#optional-featu
 		cmd.Run(false, false, command, func() error {
 			doAbout := f.Features().About
 			if doAbout == nil {
-				return errors.Errorf("%v doesn't support about", f)
+				return fmt.Errorf("%v doesn't support about", f)
 			}
 			u, err := doAbout(context.Background())
 			if err != nil {
-				return errors.Wrap(err, "About call failed")
+				return fmt.Errorf("About call failed: %w", err)
 			}
 			if u == nil {
 				return errors.New("nil usage returned")

cmd/backend/backend.go

@@ -7,7 +7,6 @@ import (
 	"os"
 	"sort"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd"
 	"github.com/rclone/rclone/cmd/rc"
 	"github.com/rclone/rclone/fs"
@@ -88,14 +87,14 @@ Note to run these commands on a running backend then see
 			default:
 				doCommand := f.Features().Command
 				if doCommand == nil {
-					return errors.Errorf("%v: doesn't support backend commands", f)
+					return fmt.Errorf("%v: doesn't support backend commands", f)
 				}
 				arg := args[2:]
 				opt := rc.ParseOptions(options)
 				out, err = doCommand(context.Background(), name, arg, opt)
 			}
 			if err != nil {
-				return errors.Wrapf(err, "command %q failed", name)
+				return fmt.Errorf("command %q failed: %w", name, err)
 
 			}
 			// Output the result
@@ -121,7 +120,7 @@ Note to run these commands on a running backend then see
 				enc.SetIndent("", "\t")
 				err = enc.Encode(out)
 				if err != nil {
-					return errors.Wrap(err, "failed to write JSON")
+					return fmt.Errorf("failed to write JSON: %w", err)
 				}
 			}
 			return nil
@@ -135,7 +134,7 @@ func showHelp(fsInfo *fs.RegInfo) error {
 	cmds := fsInfo.CommandHelp
 	name := fsInfo.Name
 	if len(cmds) == 0 {
-		return errors.Errorf("%s backend has no commands", name)
+		return fmt.Errorf("%s backend has no commands", name)
 	}
 	fmt.Printf("## Backend commands\n\n")
 	fmt.Printf(`Here are the commands specific to the %s backend.

cmd/bisync/bisync_test.go

@@ -7,6 +7,7 @@ package bisync_test
 import (
 	"bytes"
 	"context"
+	"errors"
 	"flag"
 	"fmt"
 	"io/ioutil"
@@ -36,7 +37,6 @@ import (
 	"github.com/rclone/rclone/lib/atexit"
 	"github.com/rclone/rclone/lib/random"
 
-	"github.com/pkg/errors"
 	"github.com/pmezard/go-difflib/difflib"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
@@ -541,7 +541,7 @@ func (b *bisyncTest) runTestStep(ctx context.Context, line string) (err error) {
 	case "bisync":
 		return b.runBisync(ctx, args[1:])
 	default:
-		return errors.Errorf("unknown command: %q", args[0])
+		return fmt.Errorf("unknown command: %q", args[0])
 	}
 }
 
@@ -635,7 +635,7 @@ func (b *bisyncTest) runBisync(ctx context.Context, args []string) (err error) {
 			fs1 = addSubdir(b.path1, val)
 			fs2 = addSubdir(b.path2, val)
 		default:
-			return errors.Errorf("invalid bisync option %q", arg)
+			return fmt.Errorf("invalid bisync option %q", arg)
 		}
 	}
 
@@ -793,12 +793,12 @@ func touchFiles(ctx context.Context, dateStr string, f fs.Fs, dir, glob string)
 
 	date, err := time.ParseInLocation(touchDateFormat, dateStr, bisync.TZ)
 	if err != nil {
-		return files, errors.Wrapf(err, "invalid date %q", dateStr)
+		return files, fmt.Errorf("invalid date %q: %w", dateStr, err)
 	}
 
 	matcher, firstErr := filter.GlobToRegexp(glob, false)
 	if firstErr != nil {
-		return files, errors.Errorf("invalid glob %q", glob)
+		return files, fmt.Errorf("invalid glob %q", glob)
 	}
 
 	entries, firstErr := f.List(ctx, "")

cmd/bisync/cmd.go

@@ -6,6 +6,8 @@ import (
 	"context"
 	"crypto/md5"
 	"encoding/hex"
+	"errors"
+	"fmt"
 	"io"
 	"io/ioutil"
 	"os"
@@ -21,7 +23,6 @@ import (
 	"github.com/rclone/rclone/fs/filter"
 	"github.com/rclone/rclone/fs/hash"
 
-	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 )
 
@@ -82,7 +83,7 @@ func (x *CheckSyncMode) Set(s string) error {
 	case "only":
 		*x = CheckSyncOnly
 	default:
-		return errors.Errorf("unknown check-sync mode for bisync: %q", s)
+		return fmt.Errorf("unknown check-sync mode for bisync: %q", s)
 	}
 	return nil
 }
@@ -184,7 +185,7 @@ func (opt *Options) applyFilters(ctx context.Context) (context.Context, error) {
 
 	f, err := os.Open(filtersFile)
 	if err != nil {
-		return ctx, errors.Errorf("specified filters file does not exist: %s", filtersFile)
+		return ctx, fmt.Errorf("specified filters file does not exist: %s", filtersFile)
 	}
 
 	fs.Infof(nil, "Using filters file %s", filtersFile)
@@ -199,11 +200,11 @@ func (opt *Options) applyFilters(ctx context.Context) (context.Context, error) {
 	hashFile := filtersFile + ".md5"
 	wantHash, err := ioutil.ReadFile(hashFile)
 	if err != nil && !opt.Resync {
-		return ctx, errors.Errorf("filters file md5 hash not found (must run --resync): %s", filtersFile)
+		return ctx, fmt.Errorf("filters file md5 hash not found (must run --resync): %s", filtersFile)
 	}
 
 	if gotHash != string(wantHash) && !opt.Resync {
-		return ctx, errors.Errorf("filters file has changed (must run --resync): %s", filtersFile)
+		return ctx, fmt.Errorf("filters file has changed (must run --resync): %s", filtersFile)
 	}
 
 	if opt.Resync {
@@ -218,7 +219,7 @@ func (opt *Options) applyFilters(ctx context.Context) (context.Context, error) {
 	filterOpt.FilterFrom = append([]string{filtersFile}, filterOpt.FilterFrom...)
 	newFilter, err := filter.NewFilter(&filterOpt)
 	if err != nil {
-		return ctx, errors.Wrapf(err, "invalid filters file: %s", filtersFile)
+		return ctx, fmt.Errorf("invalid filters file: %s: %w", filtersFile, err)
 	}
 
 	return filter.ReplaceConfig(ctx, newFilter), nil

cmd/bisync/deltas.go

@@ -4,10 +4,10 @@ package bisync
 
 import (
 	"context"
+	"fmt"
 	"path/filepath"
 	"sort"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd/bisync/bilib"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/operations"
@@ -201,7 +201,7 @@ func (b *bisyncRun) applyDeltas(ctx context.Context, ds1, ds2 *deltaSet) (change
 				b.indent("!WARNING", file, "New or changed in both paths")
 				b.indent("!Path1", p1+"..path1", "Renaming Path1 copy")
 				if err = operations.MoveFile(ctxMove, b.fs1, b.fs1, file+"..path1", file); err != nil {
-					err = errors.Wrapf(err, "path1 rename failed for %s", p1)
+					err = fmt.Errorf("path1 rename failed for %s: %w", p1, err)
 					b.critical = true
 					return
 				}
@@ -210,7 +210,7 @@ func (b *bisyncRun) applyDeltas(ctx context.Context, ds1, ds2 *deltaSet) (change
 
 				b.indent("!Path2", p2+"..path2", "Renaming Path2 copy")
 				if err = operations.MoveFile(ctxMove, b.fs2, b.fs2, file+"..path2", file); err != nil {
-					err = errors.Wrapf(err, "path2 rename failed for %s", file)
+					err = fmt.Errorf("path2 rename failed for %s: %w", file, err)
 					return
 				}
 				b.indent("!Path2", p1+"..path2", "Queue copy to Path1")

cmd/bisync/listing.go

@@ -14,7 +14,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/hash"
 	"github.com/rclone/rclone/fs/walk"
@@ -246,7 +245,7 @@ func parseHash(str string) (string, string, error) {
 			return name, val, nil
 		}
 	}
-	return "", "", errors.Errorf("invalid hash %q", str)
+	return "", "", fmt.Errorf("invalid hash %q", str)
 }
 
 // makeListing will produce listing from directory tree and write it to a file
@@ -301,5 +300,5 @@ func (b *bisyncRun) checkListing(ls *fileList, listing, msg string) error {
 	}
 	fs.Errorf(nil, "Empty %s listing. Cannot sync to an empty directory: %s", msg, listing)
 	b.critical = true
-	return errors.Errorf("empty %s listing: %s", msg, listing)
+	return fmt.Errorf("empty %s listing: %s", msg, listing)
 }

cmd/bisync/operations.go

@@ -5,13 +5,14 @@ package bisync
 
 import (
 	"context"
+	"errors"
+	"fmt"
 	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strconv"
 	gosync "sync"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd/bisync/bilib"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/filter"
@@ -60,10 +61,10 @@ func Bisync(ctx context.Context, fs1, fs2 fs.Fs, optArg *Options) (err error) {
 	}
 
 	if b.workDir, err = filepath.Abs(opt.Workdir); err != nil {
-		return errors.Wrap(err, "failed to make workdir absolute")
+		return fmt.Errorf("failed to make workdir absolute: %w", err)
 	}
 	if err = os.MkdirAll(b.workDir, os.ModePerm); err != nil {
-		return errors.Wrap(err, "failed to create workdir")
+		return fmt.Errorf("failed to create workdir: %w", err)
 	}
 
 	// Produce a unique name for the sync operation
@@ -76,12 +77,12 @@ func Bisync(ctx context.Context, fs1, fs2 fs.Fs, optArg *Options) (err error) {
 	if !opt.DryRun {
 		lockFile = b.basePath + ".lck"
 		if bilib.FileExists(lockFile) {
-			return errors.Errorf("prior lock file found: %s", lockFile)
+			return fmt.Errorf("prior lock file found: %s", lockFile)
 		}
 
 		pidStr := []byte(strconv.Itoa(os.Getpid()))
 		if err = ioutil.WriteFile(lockFile, pidStr, bilib.PermSecure); err != nil {
-			return errors.Wrapf(err, "cannot create lock file: %s", lockFile)
+			return fmt.Errorf("cannot create lock file: %s: %w", lockFile, err)
 		}
 		fs.Debugf(nil, "Lock file created: %s", lockFile)
 	}
@@ -394,11 +395,11 @@ func (b *bisyncRun) resync(octx, fctx context.Context, listing1, listing2 string
 func (b *bisyncRun) checkSync(listing1, listing2 string) error {
 	files1, err := b.loadListing(listing1)
 	if err != nil {
-		return errors.Wrap(err, "cannot read prior listing of Path1")
+		return fmt.Errorf("cannot read prior listing of Path1: %w", err)
 	}
 	files2, err := b.loadListing(listing2)
 	if err != nil {
-		return errors.Wrap(err, "cannot read prior listing of Path2")
+		return fmt.Errorf("cannot read prior listing of Path2: %w", err)
 	}
 
 	ok := true

cmd/bisync/rc.go

@@ -2,9 +2,9 @@ package bisync
 
 import (
 	"context"
+	"errors"
 	"log"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd/bisync/bilib"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/rc"

cmd/cachestats/cachestats.go

@@ -7,7 +7,6 @@ import (
 	"encoding/json"
 	"fmt"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/cache"
 	"github.com/rclone/rclone/cmd"
 	"github.com/rclone/rclone/fs"
@@ -39,7 +38,7 @@ Print cache stats for a remote in JSON format
 					fsCache, ok = unwrap().(*cache.Fs)
 				}
 				if !ok {
-					return errors.Errorf("%s: is not a cache remote", fsrc.Name())
+					return fmt.Errorf("%s: is not a cache remote", fsrc.Name())
 				}
 			}
 			m, err := fsCache.Stats()

cmd/cmd.go

@@ -8,6 +8,7 @@ package cmd
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"log"
 	"os"
@@ -21,7 +22,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/accounting"
 	"github.com/rclone/rclone/fs/cache"
@@ -117,7 +117,7 @@ func newFsFileAddFilter(remote string) (fs.Fs, string) {
 	f, fileName := NewFsFile(remote)
 	if fileName != "" {
 		if !fi.InActive() {
-			err := errors.Errorf("Can't limit to single files when using filters: %v", remote)
+			err := fmt.Errorf("Can't limit to single files when using filters: %v", remote)
 			err = fs.CountError(err)
 			log.Fatalf(err.Error())
 		}
@@ -478,16 +478,14 @@ func resolveExitCode(err error) {
 		os.Exit(exitcode.Success)
 	}
 
-	_, unwrapped := fserrors.Cause(err)
-
 	switch {
-	case unwrapped == fs.ErrorDirNotFound:
+	case errors.Is(err, fs.ErrorDirNotFound):
 		os.Exit(exitcode.DirNotFound)
-	case unwrapped == fs.ErrorObjectNotFound:
+	case errors.Is(err, fs.ErrorObjectNotFound):
 		os.Exit(exitcode.FileNotFound)
-	case unwrapped == errorUncategorized:
+	case errors.Is(err, errorUncategorized):
 		os.Exit(exitcode.UncategorizedError)
-	case unwrapped == accounting.ErrorMaxTransferLimitReached:
+	case errors.Is(err, accounting.ErrorMaxTransferLimitReached):
 		os.Exit(exitcode.TransferExceeded)
 	case fserrors.ShouldRetry(err):
 		os.Exit(exitcode.RetryError)

cmd/cmount/fs.go

@@ -14,9 +14,9 @@ import (
 	"time"
 
 	"github.com/billziss-gh/cgofuse/fuse"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd/mountlib"
 	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/fs/fserrors"
 	"github.com/rclone/rclone/fs/log"
 	"github.com/rclone/rclone/vfs"
 )
@@ -569,7 +569,8 @@ func translateError(err error) (errc int) {
 	if err == nil {
 		return 0
 	}
-	switch errors.Cause(err) {
+	_, uErr := fserrors.Cause(err)
+	switch uErr {
 	case vfs.OK:
 		return 0
 	case vfs.ENOENT, fs.ErrorDirNotFound, fs.ErrorObjectNotFound:

cmd/cmount/mount.go

@@ -10,6 +10,7 @@
 package cmount
 
 import (
+	"errors"
 	"fmt"
 	"os"
 	"runtime"
@@ -18,7 +19,6 @@ import (
 	"time"
 
 	"github.com/billziss-gh/cgofuse/fuse"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd/mountlib"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/lib/atexit"
@@ -176,7 +176,7 @@ func mount(VFS *vfs.VFS, mountPath string, opt *mountlib.Options) (<-chan error,
 	go func() {
 		defer func() {
 			if r := recover(); r != nil {
-				errChan <- errors.Errorf("mount failed: %v", r)
+				errChan <- fmt.Errorf("mount failed: %v", r)
 			}
 		}()
 		var err error
@@ -224,7 +224,7 @@ func mount(VFS *vfs.VFS, mountPath string, opt *mountlib.Options) (<-chan error,
 	// system didn't blow up before starting
 	select {
 	case err := <-errChan:
-		err = errors.Wrap(err, "mount stopped before calling Init")
+		err = fmt.Errorf("mount stopped before calling Init: %w", err)
 		return nil, nil, err
 	case <-fsys.ready:
 	}

cmd/cmount/mount_brew.go

@@ -7,7 +7,8 @@
 package cmount
 
 import (
-	"github.com/pkg/errors"
+	"errors"
+	
 	"github.com/rclone/rclone/cmd/mountlib"
 	"github.com/rclone/rclone/vfs"
 )

cmd/cmount/mountpoint_other.go

@@ -4,16 +4,17 @@
 package cmount
 
 import (
+	"errors"
+	"fmt"
 	"os"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd/mountlib"
 )
 
 func getMountpoint(mountPath string, opt *mountlib.Options) (string, error) {
 	fi, err := os.Stat(mountPath)
 	if err != nil {
-		return "", errors.Wrap(err, "failed to retrieve mount path information")
+		return "", fmt.Errorf("failed to retrieve mount path information: %w", err)
 	}
 	if !fi.IsDir() {
 		return "", errors.New("mount path is not a directory")

cmd/cmount/mountpoint_windows.go

@@ -4,11 +4,12 @@
 package cmount
 
 import (
+	"fmt"
 	"os"
+	"errors"
 	"path/filepath"
 	"regexp"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd/mountlib"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/lib/file"
@@ -100,7 +101,7 @@ func handleLocalMountpath(mountpath string, opt *mountlib.Options) (string, erro
 	if _, err := os.Stat(mountpath); err == nil {
 		return "", errors.New("mountpoint path already exists: " + mountpath)
 	} else if !os.IsNotExist(err) {
-		return "", errors.Wrap(err, "failed to retrieve mountpoint path information")
+		return "", fmt.Errorf("failed to retrieve mountpoint path information: %w", err)
 	}
 	if isDriveRootPath(mountpath) { // Assume intention with "X:\" was "X:"
 		mountpath = mountpath[:len(mountpath)-1] // WinFsp needs drive mountpoints without trailing path separator
@@ -115,14 +116,14 @@ func handleLocalMountpath(mountpath string, opt *mountlib.Options) (string, erro
 		}
 		var err error
 		if mountpath, err = filepath.Abs(mountpath); err != nil { // Ensures parent is found but also more informative log messages
-			return "", errors.Wrap(err, "mountpoint path is not valid: "+mountpath)
+			return "", fmt.Errorf("mountpoint path is not valid: %s: %w", mountpath, err)
 		}
 		parent := filepath.Join(mountpath, "..")
 		if _, err = os.Stat(parent); err != nil {
 			if os.IsNotExist(err) {
 				return "", errors.New("parent of mountpoint directory does not exist: " + parent)
 			}
-			return "", errors.Wrap(err, "failed to retrieve mountpoint directory parent information")
+			return "", fmt.Errorf("failed to retrieve mountpoint directory parent information: %w", err)
 		}
 	}
 	return mountpath, nil

cmd/config/config.go

@@ -3,12 +3,12 @@ package config
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"os"
 	"sort"
 	"strings"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config"
@@ -398,11 +398,11 @@ To reconnect use "rclone config reconnect".
 		f := cmd.NewFsSrc(args)
 		doDisconnect := f.Features().Disconnect
 		if doDisconnect == nil {
-			return errors.Errorf("%v doesn't support Disconnect", f)
+			return fmt.Errorf("%v doesn't support Disconnect", f)
 		}
 		err := doDisconnect(context.Background())
 		if err != nil {
-			return errors.Wrap(err, "Disconnect call failed")
+			return fmt.Errorf("Disconnect call failed: %w", err)
 		}
 		return nil
 	},
@@ -428,11 +428,11 @@ system.
 		f := cmd.NewFsSrc(args)
 		doUserInfo := f.Features().UserInfo
 		if doUserInfo == nil {
-			return errors.Errorf("%v doesn't support UserInfo", f)
+			return fmt.Errorf("%v doesn't support UserInfo", f)
 		}
 		u, err := doUserInfo(context.Background())
 		if err != nil {
-			return errors.Wrap(err, "UserInfo call failed")
+			return fmt.Errorf("UserInfo call failed: %w", err)
 		}
 		if jsonOutput {
 			out := json.NewEncoder(os.Stdout)

cmd/cryptcheck/cryptcheck.go

@@ -2,8 +2,8 @@ package cryptcheck
 
 import (
 	"context"
+	"fmt"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/crypt"
 	"github.com/rclone/rclone/cmd"
 	"github.com/rclone/rclone/cmd/check"
@@ -60,13 +60,13 @@ func cryptCheck(ctx context.Context, fdst, fsrc fs.Fs) error {
 	// Check to see fcrypt is a crypt
 	fcrypt, ok := fdst.(*crypt.Fs)
 	if !ok {
-		return errors.Errorf("%s:%s is not a crypt remote", fdst.Name(), fdst.Root())
+		return fmt.Errorf("%s:%s is not a crypt remote", fdst.Name(), fdst.Root())
 	}
 	// Find a hash to use
 	funderlying := fcrypt.UnWrap()
 	hashType := funderlying.Hashes().GetOne()
 	if hashType == hash.None {
-		return errors.Errorf("%s:%s does not support any hashes", funderlying.Name(), funderlying.Root())
+		return fmt.Errorf("%s:%s does not support any hashes", funderlying.Name(), funderlying.Root())
 	}
 	fs.Infof(nil, "Using %v for hash comparisons", hashType)
 
@@ -85,20 +85,20 @@ func cryptCheck(ctx context.Context, fdst, fsrc fs.Fs) error {
 		underlyingDst := cryptDst.UnWrap()
 		underlyingHash, err := underlyingDst.Hash(ctx, hashType)
 		if err != nil {
-			return true, false, errors.Wrapf(err, "error reading hash from underlying %v", underlyingDst)
+			return true, false, fmt.Errorf("error reading hash from underlying %v: %w", underlyingDst, err)
 		}
 		if underlyingHash == "" {
 			return false, true, nil
 		}
 		cryptHash, err := fcrypt.ComputeHash(ctx, cryptDst, src, hashType)
 		if err != nil {
-			return true, false, errors.Wrap(err, "error computing hash")
+			return true, false, fmt.Errorf("error computing hash: %w", err)
 		}
 		if cryptHash == "" {
 			return false, true, nil
 		}
 		if cryptHash != underlyingHash {
-			err = errors.Errorf("hashes differ (%s:%s) %q vs (%s:%s) %q", fdst.Name(), fdst.Root(), cryptHash, fsrc.Name(), fsrc.Root(), underlyingHash)
+			err = fmt.Errorf("hashes differ (%s:%s) %q vs (%s:%s) %q", fdst.Name(), fdst.Root(), cryptHash, fsrc.Name(), fsrc.Root(), underlyingHash)
 			fs.Errorf(src, err.Error())
 			return true, false, nil
 		}

cmd/deletefile/deletefile.go

@@ -2,8 +2,8 @@ package deletefile
 
 import (
 	"context"
+	"fmt"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd"
 	"github.com/rclone/rclone/fs/operations"
 	"github.com/spf13/cobra"
@@ -26,7 +26,7 @@ it will always be removed.
 		fs, fileName := cmd.NewFsFile(args[0])
 		cmd.Run(true, false, command, func() error {
 			if fileName == "" {
-				return errors.Errorf("%s is a directory or doesn't exist", args[0])
+				return fmt.Errorf("%s is a directory or doesn't exist", args[0])
 			}
 			fileObj, err := fs.NewObject(context.Background(), fileName)
 			if err != nil {

cmd/hashsum/hashsum.go

@@ -2,10 +2,10 @@ package hashsum
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"os"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/config/flags"
@@ -41,7 +41,7 @@ func AddHashFlags(cmdFlags *pflag.FlagSet) {
 func GetHashsumOutput(filename string) (out *os.File, close func(), err error) {
 	out, err = os.Create(filename)
 	if err != nil {
-		err = errors.Wrapf(err, "Failed to open output file %v", filename)
+		err = fmt.Errorf("Failed to open output file %v: %w", filename, err)
 		return nil, nil, err
 	}
 

cmd/lsf/lsf.go

@@ -6,7 +6,6 @@ import (
 	"io"
 	"os"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd"
 	"github.com/rclone/rclone/cmd/ls/lshelp"
 	"github.com/rclone/rclone/fs"
@@ -200,7 +199,7 @@ func Lsf(ctx context.Context, fsrc fs.Fs, out io.Writer) error {
 		case 'T':
 			list.AddTier()
 		default:
-			return errors.Errorf("Unknown format character %q", char)
+			return fmt.Errorf("Unknown format character %q", char)
 		}
 	}
 

cmd/lsjson/lsjson.go

@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd"
 	"github.com/rclone/rclone/cmd/ls/lshelp"
 	"github.com/rclone/rclone/fs"
@@ -125,11 +124,11 @@ can be processed line by line as each item is written one to a line.
 				}
 				out, err := json.MarshalIndent(item, "", "\t")
 				if err != nil {
-					return errors.Wrap(err, "failed to marshal list object")
+					return fmt.Errorf("failed to marshal list object: %w", err)
 				}
 				_, err = os.Stdout.Write(out)
 				if err != nil {
-					return errors.Wrap(err, "failed to write to output")
+					return fmt.Errorf("failed to write to output: %w", err)
 				}
 				fmt.Println()
 			} else {
@@ -138,7 +137,7 @@ can be processed line by line as each item is written one to a line.
 				err := operations.ListJSON(context.Background(), fsrc, remote, &opt, func(item *operations.ListJSONItem) error {
 					out, err := json.Marshal(item)
 					if err != nil {
-						return errors.Wrap(err, "failed to marshal list object")
+						return fmt.Errorf("failed to marshal list object: %w", err)
 					}
 					if first {
 						first = false
@@ -147,7 +146,7 @@ can be processed line by line as each item is written one to a line.
 					}
 					_, err = os.Stdout.Write(out)
 					if err != nil {
-						return errors.Wrap(err, "failed to write to output")
+						return fmt.Errorf("failed to write to output: %w", err)
 					}
 					return nil
 				})

cmd/mount/dir.go

@@ -5,13 +5,13 @@ package mount
 
 import (
 	"context"
+	"fmt"
 	"io"
 	"os"
 	"time"
 
 	"bazil.org/fuse"
 	fusefs "bazil.org/fuse/fs"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd/mountlib"
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/log"
@@ -199,7 +199,7 @@ func (d *Dir) Rename(ctx context.Context, req *fuse.RenameRequest, newDir fusefs
 	defer log.Trace(d, "oldName=%q, newName=%q, newDir=%+v", req.OldName, req.NewName, newDir)("err=%v", &err)
 	destDir, ok := newDir.(*Dir)
 	if !ok {
-		return errors.Errorf("Unknown Dir type %T", newDir)
+		return fmt.Errorf("Unknown Dir type %T", newDir)
 	}
 
 	err = d.Dir.Rename(req.OldName, req.NewName, destDir.Dir)

cmd/mount/fs.go

@@ -11,9 +11,9 @@ import (
 
 	"bazil.org/fuse"
 	fusefs "bazil.org/fuse/fs"
-	"github.com/pkg/errors"
 	"github.com/rclone/rclone/cmd/mountlib"
 	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/fs/fserrors"
 	"github.com/rclone/rclone/fs/log"
 	"github.com/rclone/rclone/vfs"
 )
@@ -77,7 +77,8 @@ func translateError(err error) error {
 	if err == nil {
 		return nil
 	}
-	switch errors.Cause(err) {
+	_, uErr := fserrors.Cause(err)
+	switch uErr {
 	case vfs.OK:
 		return nil
 	case vfs.ENOENT, fs.ErrorDirNotFound, fs.ErrorObjectNotFound: