fix: make caches unique

Author: conblem

.github/workflows/rust.yaml

@@ -29,7 +29,7 @@ jobs:
             ~/.cargo/registry
             ~/.cargo/git
             target
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          key: ${{ runner.os }}-build-${{ hashFiles('**/Cargo.lock') }}
       - uses: actions-rs/cargo@v1
         with:
           use-cross: true
@@ -53,7 +53,7 @@ jobs:
             ~/.cargo/registry
             ~/.cargo/git
             target
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          key: ${{ runner.os }}-clippy-${{ hashFiles('**/Cargo.lock') }}
       - name: Annotate commit with clippy warnings
         uses: actions-rs/clippy-check@v1
         with:
@@ -73,7 +73,7 @@ jobs:
             ~/.cargo/registry
             ~/.cargo/git
             target
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          key: ${{ runner.os }}-coverage-${{ hashFiles('**/Cargo.lock') }}
       - uses: actions-rs/cargo@v1
         with:
           command: test