update cache again

Author: andrewgazelka

.github/workflows/tests.yml

@@ -15,7 +15,8 @@ jobs:
       - uses: actions/checkout@master
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: ${{ steps.component.outputs.toolchain }}
+          toolchain: nightly
+          components: clippy
           override: true
       - uses: Swatinem/rust-cache@v2
       - name: Run tests