rust/tests/ui/lifetimes/could-not-resolve-issue-121503.stderr
2024-02-26 10:57:30 +11:00

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error[E0277]: the trait bound `impl FnMut(&mut Self): Allocator` is not satisfied
--> $DIR/could-not-resolve-issue-121503.rs:6:5
|
LL | async fn box_ref_Struct(self: Box<Self, impl FnMut(&mut Self)>) -> &u32 {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Allocator` is not implemented for `impl FnMut(&mut Self)`
|
note: required by a bound in `Box`
--> $SRC_DIR/alloc/src/boxed.rs:LL:COL
help: consider further restricting this bound
|
LL | async fn box_ref_Struct(self: Box<Self, impl FnMut(&mut Self) + std::alloc::Allocator>) -> &u32 {
| +++++++++++++++++++++++
error[E0658]: `Box<Struct, impl FnMut(&mut Self)>` cannot be used as the type of `self` without the `arbitrary_self_types` feature
--> $DIR/could-not-resolve-issue-121503.rs:6:35
|
LL | async fn box_ref_Struct(self: Box<Self, impl FnMut(&mut Self)>) -> &u32 {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: see issue #44874 <https://github.com/rust-lang/rust/issues/44874> for more information
= help: add `#![feature(arbitrary_self_types)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
= help: consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`)
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0277, E0658.
For more information about an error, try `rustc --explain E0277`.