ci: matrix run on stable and nightly, add clippy and cache (#1)

.github/workflows/rust.yml

@@ -2,18 +2,55 @@ name: Rust
 
 on:
   push:
-    branches: ["main"]
+    branches:
+      - main
+
   pull_request:
-    branches: ["main"]
+
+  workflow_dispatch:
 
 env:
   CARGO_TERM_COLOR: always
 
 jobs:
   build:
+    strategy:
+      fail-fast: false
+      matrix:
+        rust: [stable, nightly]
+
+    name: ${{ matrix.rust }}
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
-      - name: Build
-        run: cargo build --verbose
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup Rust toolchain
+        id: rust-toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          override: true
+          components: clippy
+
+      - name: Cache
+        uses: actions/cache@v3
+        id: cache
+        with:
+          path: |
+            ~/.cargo/registry/cache/
+            target/
+          key: ${{ matrix.rust }}-${{ steps.rust-toolchain.outputs.rustc_hash }}-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: cargo build
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+
+      - name: cargo clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: --no-deps -- -D warnings