rust/tests/ui/async-await/in-trait/object-safety.next.stderr
2023-03-12 10:51:19 -03:00

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warning: the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/object-safety.rs:5:12
|
LL | #![feature(async_fn_in_trait)]
| ^^^^^^^^^^^^^^^^^
|
= note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information
= note: `#[warn(incomplete_features)]` on by default
error[E0038]: the trait `Foo` cannot be made into an object
--> $DIR/object-safety.rs:13:12
|
LL | let x: &dyn Foo = todo!();
| ^^^^^^^^ `Foo` cannot be made into an object
|
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
--> $DIR/object-safety.rs:9:14
|
LL | trait Foo {
| --- this trait cannot be made into an object...
LL | async fn foo(&self);
| ^^^ ...because method `foo` is `async`
= help: consider moving `foo` to another trait
error: aborting due to previous error; 1 warning emitted
For more information about this error, try `rustc --explain E0038`.