message: [test] fix network rpc test random fail, stop node at test end.
diff: @@ -79,6 +79,8 @@ fn test_network_rpc() {
  Err(e) => debug!("{}", e),
  Ok(_) => panic!(""),
  }
  + handle2.stop().unwrap();
  + handle1.stop().unwrap();
  }
  fn gen_chain_env(config: NodeConfig) -> Result<NodeHandle> {
  