Check all features inside the library crate

.github/workflows/quality_control.yaml

@@ -54,6 +54,8 @@ jobs:
         working-directory: flutter_ffi_plugin/example/
         run: rinf message
 
+      # Targets are basically combinations of
+      # web/native and debug/release.
       - name: Check for errors in various targets
         run: |
           rustup target add wasm32-unknown-unknown
@@ -62,8 +64,10 @@ jobs:
           cargo clippy --target wasm32-unknown-unknown
           cargo clippy --target wasm32-unknown-unknown --release
 
+      # The `--all-features` flag doesn't work for the entire workspace.
+      # That's why we are checking only the library crate.
       - name: Check for errors with all features enabled
-        working-directory: flutter_ffi_plugin/example/native/hub
+        working-directory: rust_crate/
         run: cargo clippy --all-features
 
       - name: Analyze code