test cache

Author: kornelski

.github/workflows/ci.yml

@@ -226,6 +226,18 @@ jobs:
     - name: Set Android Linker path
       if: endsWith(matrix.thing, '-android')
       run: echo "CARGO_TARGET_$(echo ${{ matrix.target }} | tr \\-a-z _A-Z)_LINKER=$ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/$(echo ${{ matrix.target }} | sed s/armv7/armv7a/)21-clang++" >> "$GITHUB_ENV"
+    - name: Create lockfile
+      run: cargo generate-lockfile
+    - name: Cache cargo registry
+      uses: actions/cache@v4
+      with:
+        path: ~/.cargo/registry/cache
+        key: registry-${{ runner.os }}-${{ steps.rust-version.outputs.version }}-${{ hashFiles('Cargo.lock') }}
+    - name: Cache target directory
+      uses: actions/cache@v4
+      with:
+        path: target
+        key: tests-target-${{ runner.os }}-${{ steps.rust-version.outputs.version }}-${{ hashFiles('Cargo.lock') }}
     - name: Build tests
       # We `build` because we want the linker to verify we are cross-compiling correctly for check-only targets.
       run: cargo build --target ${{ matrix.target }} --tests ${{ matrix.extra_test_args }}