run ci/cd with clippy and latest rust version

.github/workflows/rust.yml

@@ -13,8 +13,38 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - name: Build
-      run: cargo build --verbose
-    - name: Run tests
-      run: cargo test --verbose
+      - name: Checkout sources
+        uses: actions/checkout@v2
+
+      - name: Install rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+          components: rustfmt, clippy
+
+      - name: Setup rust smart caching
+        uses: Swatinem/rust-cache@v1.3.0
+
+      - name: Cargo fmt
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+      - name: Cargo clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: --no-deps -- -D warnings
+      
+      - name: Cargo build
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+      
+      - name: Cargo test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test