| // Repro for <https://github.com/rust-lang/rust/issues/126044#issuecomment-2154313449>. |
| //@ edition: 2021 |
| //@ revisions: assumptions no_assumptions |
| //@[assumptions] compile-flags: -Zhigher-ranked-assumptions |
| //@[assumptions] check-pass |
| //@[no_assumptions] known-bug: #110338 |
| |
| async fn listen() { |
| let things: Vec<Vec<i32>> = vec![]; |
| for _ in things.iter().map(|n| n.iter()).flatten() { |
| // comment this line and everything compiles |
| async {}.await; |
| } |
| } |
| |
| fn require_send<T: Send>(_x: T) {} |
| |
| fn main() { |
| let future = listen(); |
| require_send(future); |
| } |
