message: Fix clippy.
diff: @@ -255,8 +255,7 @@ where
  ) {
  match target {
  Target::All => {
  - let nodes: Vec<NodeId> =
  - self.nodes_map.keys().into_iter().cloned().collect();
  + let nodes: Vec<NodeId> = self.nodes_map.keys().cloned().collect();
  self.send_messages(nodes, message, delivery_time);
  }
  Target::SingleNode(recipient_id) => {
  