extra test step

.github/workflows/rust.yml

@@ -14,15 +14,16 @@ jobs:
           rustup component add rustfmt
           rustup component add clippy
 
-      - name: Run on Linux
+      - name: Use ffmpeg on Linux
         if: ${{ matrix.os == 'ubuntu-latest' }}
         uses: FedericoCarboni/setup-ffmpeg@v1
 
-      - name: Run Cargo
+      - name: Tests and Linux
+        if: ${{ matrix.os == 'ubuntu-latest' }}
         run: |
-          if [ "$RUNNER_OS" == "Linux" ]; then
-            cargo test --all-features
-            cargo clippy --all-features --all-targets -- --deny warnings
-            cargo fmt --all -- --check
-          fi
+          cargo test --all-features
+          cargo clippy --all-features --all-targets -- --deny warnings
+          cargo fmt --all -- --check
+
+      - name: Run build on all Systems
           cargo build --all-features