#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use std::mem;
use std::pin::Pin;
fn move_pinned_ref<T>(mut a: T, mut b: T) {
    unsafe {
        let p: Pin<&mut T> = Pin::new_unchecked(&mut a);
    }
    mem::swap(&mut a, &mut b);
}
fn main() {}