ICE: Out of bounds when relating regions

[viichi]

https://play.rust-lang.org/?version=nightly&mode=debug&edition=2021&gist=d383ef3aefad236b54486affe9c59a27

#![feature(type_alias_impl_trait)]

use std::future::Future;
use std::io::Result;
use std::pin::Pin;

pub trait AsyncReadFrom: Sized {
    type Output<R>: Future<Output = Self>;

    fn async_read_from<R: Unpin>(r: &mut R) -> Self::Output<R>;
}

impl<T: AsyncReadFrom> AsyncReadFrom for (T,) {
    type Output<R> = impl Future<Output = Self>;

    fn async_read_from<R: Unpin>(r: &mut R) -> Self::Output<R> {
        let r = Pin::new(r);
        async move {
            while true {
                T::async_read_from(r.get_mut()).await;
            }
            loop {}
        }
    }
}

[clubby789]

searched nightlies: from nightly-2023-01-27 to nightly-2023-01-28
regressed nightly: nightly-2023-01-28
searched commit range: d7948c8...ef98292
regressed commit: 7919ef0

bisected with cargo-bisect-rustc v0.6.5

Host triple: x86_64-unknown-linux-gnu
Reproduce with:

cargo bisect-rustc --start 2023-01-27 --end 2023-01-28  --regress ice 

@rustbot label +I-ICE +F-type_alias_impl_trait

[Noratrieb]

Minimized it further:

use std::pin::Pin;

fn foo(_: &mut ()) {}

fn main() {
    let r = Pin::new(&mut ());
    foo(r.get_mut());
    foo(r.get_mut());
}