Changing order.

.github/workflows/rust.yml

@@ -18,9 +18,9 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
+    - uses: dtolnay/rust-toolchain@stable
     - uses: actions/checkout@v3
     - uses: actions/cache@v3
-    - uses: dtolnay/rust-toolchain@stable
       with:
         path: |
           ~/.cargo/bin/