Re-enabled the rust cargo index and registry caches because

cargo was downloading them just for nothing.
https://github.com/ankitects/anki/pull 528

.github/workflows/checks.yml

@@ -97,53 +97,53 @@ jobs:
         uses: actions/cache@v1
         with:
           path: ${{ github.workspace }}${{ matrix.SEP }}pyenv
-          key: ${{ runner.os }}-pyenv-${{ hashFiles('**/Makefile') }}-${{ hashFiles('**/requirements.txt') }}-12-
+          key: ${{ runner.os }}-pyenv-${{ hashFiles('**/Makefile') }}-${{ hashFiles('**/requirements.txt') }}-14-
 
       # Disabling these caches for now because they do not seem to be used/help
       # https://github.com/ankitects/anki/pull/528
       # - name: Cache pip wheels
       #   uses: actions/cache@v1
       #   with:
       #     path: ${{ matrix.PIP_WHEELS_DIR }}
-      #     key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}-12-
+      #     key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}-14-
 
-      # - name: Cache cargo index
-      #   uses: actions/cache@v1
-      #   with:
-      #     path: ${{ matrix.CARGO_INDEX_DIR }}
-      #     key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.toml') }}-12-
+      - name: Cache cargo index
+        uses: actions/cache@v1
+        with:
+          path: ${{ matrix.CARGO_INDEX_DIR }}
+          key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.toml') }}-14-
 
-      # - name: Cache cargo registry
-      #   uses: actions/cache@v1
-      #   with:
-      #     path: ${{ matrix.CARGO_REGISTRY_DIR }}
-      #     key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.toml') }}-12-
+      - name: Cache cargo registry
+        uses: actions/cache@v1
+        with:
+          path: ${{ matrix.CARGO_REGISTRY_DIR }}
+          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.toml') }}-14-
 
       - name: Cache cargo target
         uses: actions/cache@v1
         with:
           path: ${{ github.workspace }}${{ matrix.SEP }}target
-          key: ${{ runner.os }}-cargo-target-${{ hashFiles('**/Cargo.toml') }}-$${{ matrix.BUILD_TYPE }}-12-
+          key: ${{ runner.os }}-cargo-target-${{ hashFiles('**/Cargo.toml') }}-${{ matrix.BUILD_TYPE }}-14-
 
       - name: Cache cargo rslib
         uses: actions/cache@v1
         with:
           path: ${{ github.workspace }}${{ matrix.SEP }}rslib${{ matrix.SEP }}target
-          key: ${{ runner.os }}-cargo-rslib-${{ hashFiles('**/Cargo.toml') }}-$${{ matrix.BUILD_TYPE }}-12-
+          key: ${{ runner.os }}-cargo-rslib-${{ hashFiles('**/Cargo.toml') }}-${{ matrix.BUILD_TYPE }}-14-
 
       - name: Cache cargo rspy
         uses: actions/cache@v1
         with:
           path: ${{ github.workspace }}${{ matrix.SEP }}rspy${{ matrix.SEP }}target
-          key: ${{ runner.os }}-cargo-rspy-${{ hashFiles('**/Cargo.toml') }}-$${{ matrix.BUILD_TYPE }}-12-
+          key: ${{ runner.os }}-cargo-rspy-${{ hashFiles('**/Cargo.toml') }}-${{ matrix.BUILD_TYPE }}-14-
 
       - name: Cache pacman
         if: matrix.os == 'windows-latest'
         uses: actions/cache@v1
         id: cache-pacman
         with:
           path: C:\Program Files\Git
-          key: ${{ runner.os }}-pacman-${{ hashFiles('**/checks.yml') }}-12-
+          key: ${{ runner.os }}-pacman-${{ hashFiles('**/checks.yml') }}-14-
 
       - name: Set up pacman, rsync
         if: matrix.os == 'windows-latest' && steps.cache-pacman.outputs.cache-hit != 'true'