//@compile-flags: -Zvalidate-mir -Zinline-mir=yes --crate-type=lib #![feature(async_drop)] #![allow(incomplete_features)] use std::{ future::{Future, async_drop_in_place}, pin::pin, task::Context, }; fn wrong() -> impl Sized { //~^ ERROR: the size for values of type `str` cannot be known at compilation time *"abc" // Doesn't implement Sized } fn weird(context: &mut Context<'_>) { let mut e = wrong(); let h = unsafe { async_drop_in_place(&raw mut e) }; let i = pin!(h); i.poll(context); }