Cache "cargo install"

Signed-off-by: Joe Richey <[email protected]>

Author: josephlr

.github/workflows/tests.yml

@@ -24,7 +24,16 @@ jobs:
           profile: minimal
           toolchain: nightly
           override: true
-      - run: cargo install cargo-deadlinks
+      # Use actions-rs/install after https://github.com/actions-rs/tool-cache/pull/20 is merged
+      - name: Cache deadlinks
+        id: cache-deadlinks
+        uses: actions/cache@v1
+        with:
+          path: ~/.cargo/bin/
+          key: ${{ runner.os }}-deadlinks
+      - name: Install deadlinks
+        if: steps.cache-deadlinks.outputs.cache-hit != 'true'
+        run: cargo install cargo-deadlinks
       - run: cargo deadlinks -- --features=custom,std
       - run: cargo generate-lockfile -Z minimal-versions && cargo test
 
@@ -105,20 +114,12 @@ jobs:
             toolchain: stable
     steps:
       - uses: actions/checkout@v2
-      - name: Install toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          target: ${{ matrix.target }}
-          toolchain: ${{ matrix.toolchain }}
-          override: true
-      - name: Cache cargo plugins
-        uses: actions/cache@v1
-        with:
-          path: ~/.cargo/bin/
-          key: ${{ runner.os }}-cargo-plugins
       - name: Install cross
-        run: cargo install cross || true
+        uses: actions-rs/[email protected]
+        with:
+          crate: cross
+          version: latest
+          use-tool-cache: true
       - name: Test
         run: cross test --no-fail-fast --target=${{ matrix.target }} --features=custom,std