Better rust GH action.

.github/workflows/build.yaml

@@ -56,7 +56,13 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3
-      - uses: actions-rust-lang/setup-rust-toolchain@v1
+      - name: Install Rust Stable
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          components: rustfmt, clippy
+          override: true
+      - uses: Swatinem/rust-cache@v2
       - name: Test (cuda)
         run: cargo test --features cuda
   stop-runner: