actions: use Swatinem/rust-cache for simpler build caching

.github/workflows/release-artifacts.yml

@@ -24,26 +24,7 @@ jobs:
       env:
         ACCEPT_EULA: Y
       run: sudo apt-get -y update && sudo apt-get install -f && sudo apt-get -y install libsqlite3-dev libclang-9-dev
-    - name: Cache cargo registry
+    - uses: Swatinem/rust-cache@v1
-      uses: actions/cache@v2
-      with:
-        path: ~/.cargo/registry
-        key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
-    - name: Cache cargo index
-      uses: actions/cache@v2
-      with:
-        path: ~/.cargo/git
-        key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
-    - name: Cache cargo build
-      uses: actions/cache@v2
-      with:
-        path: target
-        key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
-    - name: Cache cargo bin
-      uses: actions/cache@v2
-      with:
-        path: ~/.cargo/bin
-        key: ${{ runner.os }}-cargo-bin-${{ hashFiles('**/Cargo.lock') }}
     - name: Build
       uses: actions-rs/cargo@v1
       with:

.github/workflows/rust.yml

@@ -30,13 +30,7 @@ jobs:
         ACCEPT_EULA: Y
       run: sudo apt-get -y update && sudo apt-get install -f && sudo apt-get -y install libsqlite3-dev libclang-9-dev
       if: contains(runner.os, 'Linux')
-    - uses: actions/cache@v2
+    - uses: Swatinem/rust-cache@v1
-      with:
-        path: |
-          ~/.cargo/registry
-          ~/.cargo/git
-          ~/.cargo/bin
-        key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}-v1
     - name: Build
       uses: actions-rs/cargo@v1
       with: