use std::rc::Rc;

async fn handle(stream: TcpStream) {

async fn handle(stream: TcpStream, dict: Rc<DashSet<String>>) {

    let dict = DashSet::new();

        let dict = Rc::new(DashSet::new());

            spawn_local(handle(stream)).detach();

            spawn_local(handle(stream, dict.clone())).detach();