| warning: relaxing a default bound only does something for `?Sized`; all other traits are not bound by default |
| --> $DIR/issue-87199.rs:8:11 |
| | |
| LL | fn arg<T: ?Send>(_: T) {} |
| | ^^^^^ |
| |
| warning: relaxing a default bound only does something for `?Sized`; all other traits are not bound by default |
| --> $DIR/issue-87199.rs:10:15 |
| | |
| LL | fn ref_arg<T: ?Send>(_: &T) {} |
| | ^^^^^ |
| |
| warning: relaxing a default bound only does something for `?Sized`; all other traits are not bound by default |
| --> $DIR/issue-87199.rs:12:40 |
| | |
| LL | fn ret() -> impl Iterator<Item = ()> + ?Send { std::iter::empty() } |
| | ^^^^^ |
| |
| error[E0277]: the size for values of type `[i32]` cannot be known at compilation time |
| --> $DIR/issue-87199.rs:18:15 |
| | |
| LL | ref_arg::<[i32]>(&[5]); |
| | ^^^^^ doesn't have a size known at compile-time |
| | |
| = help: the trait `Sized` is not implemented for `[i32]` |
| note: required by a bound in `ref_arg` |
| --> $DIR/issue-87199.rs:10:12 |
| | |
| LL | fn ref_arg<T: ?Send>(_: &T) {} |
| | ^ required by this bound in `ref_arg` |
| help: consider relaxing the implicit `Sized` restriction |
| | |
| LL | fn ref_arg<T: ?Send + ?Sized>(_: &T) {} |
| | ++++++++ |
| |
| error: aborting due to previous error; 3 warnings emitted |
| |
| For more information about this error, try `rustc --explain E0277`. |
