diff --git a/.azure/azure-pipelines.yml b/.azure/azure-pipelines.yml
index 50ebcf1e24..b384e8df38 100644
--- a/.azure/azure-pipelines.yml
+++ b/.azure/azure-pipelines.yml
@@ -21,5 +21,5 @@ steps:
       rustc -Vv
       echo "##vso[task.prependpath]$HOME/.cargo/bin"
     displayName: Install Rust
-  - bash: RUSTFLAGS="-D warnings" cargo test
+  - bash: RUSTFLAGS="-D warnings" cargo test --all-features
     displayName: Run tests
diff --git a/src/commands/config.rs b/src/commands/config.rs
index 78f1ad399c..97b2a948e9 100644
--- a/src/commands/config.rs
+++ b/src/commands/config.rs
@@ -137,7 +137,7 @@ pub fn config(
         let key = v.to_string();
 
         if result.contains_key(&key) {
-            result.remove(&key);
+            result.swap_remove(&key);
             config::write(&result, &configuration)?;
         } else {
             return Err(ShellError::string(&format!(