automatic update

from rust-github/template@c588176

Author: github-actions

.github/workflows/ci.yml

@@ -44,7 +44,7 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: fmt
-          args: --all -- --check
+          args: --all --check
 
   clippy:
     name: Clippy