Make clippy happy

src/cargo/ops/cargo_compile.rs

@@ -1140,7 +1140,7 @@ fn generate_targets(
  // else, silently skip target.
  }
  let mut units: Vec<_> = units.into_iter().collect();
- unmatched_target_filters(&units, &filter, &mut ws.config().shell())?;
+ unmatched_target_filters(&units, filter, &mut ws.config().shell())?;
 
  // Keep the roots in a consistent order, which helps with checking test output.
  units.sort_unstable();