#![allow(dead_code, deprecated, unused_variables, unused_mut)]
#![feature(addr_parse_ascii)]
use std::net::{Ipv4Addr, SocketAddrV4};
fn main() {
    let socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080);
    assert_eq!(SocketAddrV4::parse_ascii(b"127.0.0.1:8080"), Ok(socket));
}