ci(release): cache Rust builds per platform

.github/actions/rust-cache/action.yml

@@ -4,17 +4,24 @@ inputs:
   profile:
     description: Cargo output profile directory (debug or release)
     default: debug
+  key:
+    description: Separates the caches of jobs that share a runner OS and architecture, such as a build matrix
+    default: ""
 runs:
   using: composite
   steps:
     - uses: Swatinem/rust-cache@v2
+      with:
+        key: ${{ inputs.key }}
     # rust-cache removes gn_out during cleanup; this later action saves it first.
     - uses: actions/cache@v5
       id: v8
       with:
         path: target/${{ inputs.profile }}/gn_out
-        key: v8-${{ runner.os }}-${{ runner.arch }}-${{ inputs.profile }}-${{ hashFiles('Cargo.lock') }}
+        key: >-
+          v8-${{ inputs.key || format('{0}-{1}', runner.os, runner.arch) }}-${{ inputs.profile }}-${{
+          hashFiles('Cargo.lock') }}
     - name: Rebuild V8 if its native archive was evicted
       if: steps.v8.outputs.cache-hit != 'true'
       shell: bash
-      run: cargo clean -p v8
+      run: cargo clean -p v8 --profile ${{ inputs.profile == 'debug' && 'dev' || inputs.profile }}

.github/workflows/release.yml

@@ -104,6 +104,10 @@ jobs:
       - uses: gradle/actions/setup-gradle@v5
         if: matrix.maven
       - run: rustup toolchain install --no-self-update
+      - uses: ./.github/actions/rust-cache
+        with:
+          profile: release
+          key: ${{ matrix.platform }}
       - name: Configure the vendored OpenSSL with Strawberry Perl
         if: runner.os == 'Windows'
         # Git's MSYS Perl, first on the bash PATH, cannot configure OpenSSL for MSVC.