Include target dir and split out shared cache workflow

.github/workflows/cargo-test.yaml

@@ -9,14 +9,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
-
-      - name: Cache Cargo dependencies
-        uses: actions/cache@v2
-        with:
-          path: ~/.cargo
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-
+        
+      - uses: ./.github/workflows/cache.yml
 
       - name: Install Rust
         uses: actions-rs/toolchain@v1

.github/workflows/rust-cache.yaml

@@ -0,0 +1,18 @@
+name: Rust Cache
+
+jobs:
+  cache:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/cache@v2
+      with:
+        path: ~/.cargo
+        key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-cargo-
+    - uses: actions/cache@v2
+      with:
+        path: target
+        key: ${{ runner.os }}-target-${{ hashFiles('**/Cargo.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-target-

.github/workflows/website-deploy.yaml

@@ -11,14 +11,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-
-    - name: Cache Cargo dependencies
-      uses: actions/cache@v2
-      with:
-        path: ~/.cargo
-        key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
-        restore-keys: |
-          ${{ runner.os }}-cargo-
+    
+    - uses: ./.github/workflows/cache.yml
 
     - name: Install Rust
       uses: actions-rs/toolchain@v1