server.rs

use std::cell::Cell;
use std::rt::io::net::tcp::TcpListener;
use std::rt::io::net::ip::Ipv4;
use std::rt::io::{Listener, Writer};

fn main() {
    let mut listener = TcpListener::bind(Ipv4(0, 0, 0, 0, 6767))
                                   .expect("Unable to bind to 0.0.0.0:6767");

    loop {
        let stream = Cell::new(listener.accept());
        do spawn {
            let mut stream = stream.take().unwrap();

            stream.write(bytes!("Hello World!\r\n"));
        }
    }
}