ci: Add rustc hash for caching target dir

Author: tesuji

ci/actions-templates/linux-builds-template.yaml

@@ -82,11 +82,16 @@ jobs:
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-cargo-gits-trimmed-${{ hashFiles('**/Cargo.lock') }}
+      - name: Get rustc commit hash
+        id: cargo-target-cache
+        run: |
+          echo "::set-output name=rust_hash::$(rustc -Vv | grep commit-hash | awk '{print $2}')"
+        shell: bash
       - name: Cache cargo build
         uses: actions/cache@v1
         with:
           path: target
-          key: ${{ runner.os }}-cargo-build-trimmed-${{ matrix.target }}-${{ hashFiles('**/Cargo.lock') }}
+          key: ${{ matrix.target }}-cargo-target-dir-${{ steps.cargo-target-cache.outputs.rust_hash }}-${{ hashFiles('**/Cargo.lock') }}
       - name: Install Rustup using ./rustup-init.sh
         run: |
           sh ./rustup-init.sh --default-toolchain=none --profile=minimal -y

ci/actions-templates/macos-builds-template.yaml

@@ -51,11 +51,16 @@ jobs:
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-cargo-gits-trimmed-${{ hashFiles('**/Cargo.lock') }}
+      - name: Get rustc commit hash
+        id: cargo-target-cache
+        run: |
+          echo "::set-output name=rust_hash::$(rustc -Vv | grep commit-hash | awk '{print $2}')"
+        shell: bash
       - name: Cache cargo build
         uses: actions/cache@v1
         with:
           path: target
-          key: ${{ runner.os }}-cargo-build-trimmed-${{ matrix.target }}-${{ hashFiles('**/Cargo.lock') }}
+          key: ${{ matrix.target }}-cargo-target-dir-${{ steps.cargo-target-cache.outputs.rust_hash }}-${{ hashFiles('**/Cargo.lock') }}
       - name: Install Rustup using ./rustup-init.sh
         run: |
           sh ./rustup-init.sh --default-toolchain=none --profile=minimal -y

ci/actions-templates/windows-builds-template.yaml

@@ -81,11 +81,16 @@ jobs:
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-cargo-gits-trimmed-${{ hashFiles('**/Cargo.lock') }}
+      - name: Get rustc commit hash
+        id: cargo-target-cache
+        run: |
+          echo "::set-output name=rust_hash::$(rustc -Vv | grep commit-hash | awk '{print $2}')"
+        shell: bash
       - name: Cache cargo build
         uses: actions/cache@v1
         with:
           path: target
-          key: ${{ runner.os }}-cargo-build-static-crt-trimmed-${{ matrix.target }}-${{ hashFiles('**/Cargo.lock') }}
+          key: ${{ matrix.target }}-cargo-target-dir-${{ steps.cargo-target-cache.outputs.rust_hash }}-${{ hashFiles('**/Cargo.lock') }}
       - name: Install Rustup using win.rustup.rs
         run: |
           # Disable the download progress bar which can cause perf issues