message: Fix clone-instead-of-deref issue in `round_robin.rs`
diff: @@ -133,7 +133,7 @@ where
  let mut queues = HashMap::new();
  for (kind, guard) in &locks {
  let queue = &**guard;
  - queues.insert(kind.clone(), queue);
  + queues.insert(*kind, queue);
  }
  let queue_dump = QueueDump { queues };
  