Only run clippy on ubuntu and stable Rust

Author: Urhengulas

.github/workflows/ci.yaml

@@ -88,6 +88,7 @@ jobs:
         run: cargo test ${{ env.USE_SYSROOT_ABI }} -- --nocapture --quiet
 
       - name: clippy
+        if: matrix.os == 'ubuntu-latest' && ${{ env.RUST_CHANNEL }} == 'stable'
         run: cargo clippy --all-targets -- -D warnings
 
       - name: Switch to stable toolchain