use actions/cache@v2

.github/workflows/tests.yml

@@ -27,13 +27,13 @@ jobs:
       - uses: actions/checkout@v1
 
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-${{ matrix.rust }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo build
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: target
           key: ${{ runner.os }}-${{ matrix.rust }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}