workflow: add cache

.github/workflows/rust.yml

@@ -22,6 +22,15 @@ jobs:
           profile: minimal
           toolchain: stable
           override: true
+      - name: Set up cargo cache
+        uses: actions/cache@v3
+        continue-on-error: false
+        with:
+          path: |
+            ~/.cargo
+            target/
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: ${{ runner.os }}-cargo-
       - uses: abelfodil/protoc-action@v1
         with:
           protoc-version: '3.19.4'
@@ -45,8 +54,6 @@ jobs:
       - uses: supercharge/[email protected]
         with:
           redis-version: 5
-      # Nightly is required for code coverage with doctests
-      # https://github.com/taiki-e/cargo-llvm-cov/issues/2
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
@@ -77,6 +84,7 @@ jobs:
           args: --all -- --check
 
   clippy:
+    needs: check
     name: Clippy
     runs-on: ubuntu-latest
     steps:
@@ -96,6 +104,7 @@ jobs:
           args: --all-features --all-targets -- -D warnings
 
   bench:
+    needs: check
     name: Bench
     runs-on: ubuntu-latest
     steps: