| // edition:2021 | |
| // issue 108897 | |
| trait Handler {} | |
| impl<F, Fut> Handler for F | |
| where | |
| Fut: Send, | |
| F: FnOnce() -> Fut, | |
| {} | |
| fn require_handler<H: Handler>(h: H) {} | |
| async fn handler() { | |
| let a = &1 as *const i32; | |
| async {}.await; | |
| let b = a; | |
| } | |
| fn main() { | |
| require_handler(handler) | |
| //~^ ERROR future cannot be sent between threads safely | |
| } |