build: update to go1.20rc3 and make go1.17 the minimum required version

.github/workflows/build.yml

@@ -25,12 +25,12 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        job_name: ['linux', 'linux_386', 'mac_amd64', 'mac_arm64', 'windows', 'other_os', 'go1.17', 'go1.18']
+        job_name: ['linux', 'linux_386', 'mac_amd64', 'mac_arm64', 'windows', 'other_os', 'go1.18', 'go1.19']
 
         include:
           - job_name: linux
             os: ubuntu-latest
-            go: '1.19'
+            go: '1.20.0-rc.3'
             gotags: cmount
             build_flags: '-include "^linux/"'
             check: true
@@ -41,14 +41,14 @@ jobs:
 
           - job_name: linux_386
             os: ubuntu-latest
-            go: '1.19'
+            go: '1.20.0-rc.3'
             goarch: 386
             gotags: cmount
             quicktest: true
 
           - job_name: mac_amd64
             os: macos-11
-            go: '1.19'
+            go: '1.20.0-rc.3'
             gotags: 'cmount'
             build_flags: '-include "^darwin/amd64" -cgo'
             quicktest: true
@@ -57,14 +57,14 @@ jobs:
 
           - job_name: mac_arm64
             os: macos-11
-            go: '1.19'
+            go: '1.20.0-rc.3'
             gotags: 'cmount'
             build_flags: '-include "^darwin/arm64" -cgo -macos-arch arm64 -cgo-cflags=-I/usr/local/include -cgo-ldflags=-L/usr/local/lib'
             deploy: true
 
           - job_name: windows
             os: windows-latest
-            go: '1.19'
+            go: '1.20.0-rc.3'
             gotags: cmount
             cgo: '0'
             build_flags: '-include "^windows/"'
@@ -74,23 +74,23 @@ jobs:
 
           - job_name: other_os
             os: ubuntu-latest
-            go: '1.19'
+            go: '1.20.0-rc.3'
             build_flags: '-exclude "^(windows/|darwin/|linux/)"'
             compile_all: true
             deploy: true
 
-          - job_name: go1.17
-            os: ubuntu-latest
-            go: '1.17'
-            quicktest: true
-            racequicktest: true
-
           - job_name: go1.18
             os: ubuntu-latest
             go: '1.18'
             quicktest: true
             racequicktest: true
 
+          - job_name: go1.19
+            os: ubuntu-latest
+            go: '1.19'
+            quicktest: true
+            racequicktest: true
+
     name: ${{ matrix.job_name }}
 
     runs-on: ${{ matrix.os }}
@@ -237,7 +237,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v3
         with:
-          go-version: 1.19
+          go-version: 1.20.0-rc.3
           check-latest: true
 
       - name: Install govulncheck
@@ -262,7 +262,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v3
         with:
-          go-version: 1.19
+          go-version: 1.20.0-rc.3
 
       - name: Go module cache
         uses: actions/cache@v3

fs/versioncheck.go

@@ -1,8 +1,8 @@
-//go:build !go1.17
-// +build !go1.17
+//go:build !go1.18
+// +build !go1.18
 
 package fs
 
-// Upgrade to Go version 1.17 to compile rclone - latest stable go
+// Upgrade to Go version 1.18 to compile rclone - latest stable go
 // compiler recommended.
-func init() { Go_version_1_17_required_for_compilation() }
+func init() { Go_version_1_18_required_for_compilation() }

go.mod

@@ -1,6 +1,6 @@
 module github.com/rclone/rclone
 
-go 1.17
+go 1.18
 
 require (
 	bazil.org/fuse v0.0.0-20221209211307-2abb8038c751