CI: Install clippy

Author: meithecatte

.github/workflows/rust.yml

@@ -11,16 +11,21 @@ jobs:
 
     steps:
     - uses: actions/checkout@v1
-    - name: Install toolchain
-      uses: actions-rs/toolchain@v1
+    - uses: actions-rs/toolchain@v1
       with:
         toolchain: ${{ matrix.rust }}
         profile: minimal
         default: true
-    - name: Build
-      run: cargo build --verbose
-    - name: Run tests
-      run: cargo test --verbose
-    - name: Run clippy
-      if: matrix.rust == 'nightly'
-      run: cargo clippy -- -D warnings
+    - run: cargo build --verbose
+    - run: cargo test --verbose
+  clippy:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: nightly
+        override: true
+        components: clippy
+    - run: cargo clippy -- -D warnings