message: [network] fix socket bench server
  Closes:
  Approved by: davidiw
diff: @@ -38,4 +38,5 @@ fn main() {
  let addr = start_stream_server(&executor, build_tcp_noise_transport(), addr);
  info!("bench: tcp+noise: listening on: {}", addr);
  }
  + std::thread::park();
  }
  