Fix linting

Author: relf

.github/workflows/codequality.yml

@@ -27,6 +27,7 @@ jobs:
         run: cargo fmt --all -- --check
 
       - name: Run cargo clippy
+        if: ${{ matrix.toolchain }} == 'stable'
         run: cargo clippy --workspace --all-targets -- -D warnings
 
   coverage:

algorithms/linfa-tsne/examples/mnist.rs

@@ -58,6 +58,7 @@ fn main() -> Result<()> {
     }
 
     // and plot with gnuplot
+    #[allow(clippy::zombie_processes)]
     Command::new("gnuplot")
         .arg("-p")
         .arg("examples/mnist_plot.plt")