ci: use dtolnay/rust-toolchain

.github/workflows/ci.yml

@@ -10,36 +10,15 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@master
 
-      - name: Install latest stable Rust
-        uses: actions-rs/toolchain@v1
+      - name: Setup rust
+        uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: stable
-          default: true
-          override: true
+          components: clippy, rustfmt
 
-      - name: Install minimal stable with clippy and rustfmt
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: stable
-          components: rustfmt, clippy
-
-      - name: Run rustfmt
-        uses: actions-rs/cargo@v1
-        with:
-          command: fmt
-          args: -- --check
-
-      - name: Run clippy
-        uses: actions-rs/cargo@v1
-        with:
-          command: clippy
-
-      - name: Run test
-        uses: actions-rs/cargo@v1
-        with:
-          command: test
-          args: --all-features
+      - run: |
+          cargo fmt -- --check
+          cargo test --all-features
+          cargo clippy
 
   gh-pages:
     if: github.ref == 'refs/heads/v0.10'