Add CI cache action

.github/workflows/rust.yml

@@ -37,21 +37,33 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+
+      - name: Setup Rust toolchain and cache
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+
       - name: Check with clippy
         run: cargo clippy -- --deny warnings
 
   check-format:
     name: cargo fmt
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - name: Check rust formatting
-      run: cargo fmt --all -- --check
+      - uses: actions/checkout@v4
+
+      - name: Setup Rust toolchain and cache
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+
+      - name: Check rust formatting
+        run: cargo fmt --all -- --check
 
   test:
     name: cargo test
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - name: Run tests
-      run: cargo test --all-features
+      - uses: actions/checkout@v4
+
+      - name: Setup Rust toolchain and cache
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+
+      - name: Run tests
+        run: cargo test --all-features