#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use std::task::{ready, Context, Poll};
use std::future::{self, Future};
use std::pin::Pin;
pub fn do_poll(cx: &mut Context<'_>) -> Poll<()> {
    let mut fut = future::ready(42);
    let fut = Pin::new(&mut fut);
    let num = ready!(fut.poll(cx));
    let _ = num;
    Poll::Ready(())
}
fn main() {}