Merge pull request #126 from m-ou-se/github-actions-rustfmt

Fix GitHub actions to run latest available rustfmt.

Author: phil-opp

.github/workflows/build.yml

@@ -115,13 +115,5 @@ jobs:
     timeout-minutes: 2
     steps:
     - uses: actions/checkout@v1
-    - name: Set Rustup profile to minimal
-      run: rustup set profile minimal
-    - name: "Add a rustup override for rustfmt nightly"
-      uses: actions-rs/toolchain@v1
-      with:
-          toolchain: nightly
-          components: rustfmt
-          override: true
-    - run: rustup component add rustfmt
-    - run: cargo fmt -- --check
+    - run: rustup install nightly
+    - run: cargo +nightly fmt -- --check