| // { dg-additional-options "-frust-edition=2018" } | |
| #![feature(no_core)] | |
| #![no_core] | |
| trait Foo { | |
| fn f() -> u32; | |
| } | |
| impl Foo for u32 { | |
| async fn f() -> u32 { | |
| // { dg-error "functions in traits cannot be declared .async." "" { target *-*-* } .-1 } | |
| 22 | |
| } | |
| } | |
| fn main() {} |