rust/tests/ui/consts/const-blocks/trait-error.stderr
Esteban Küber ac980cace8 Make obligation cause code suggestions verbose
```
error[E0277]: `()` is not a future
  --> $DIR/unnecessary-await.rs:28:10
   |
LL |     e!().await;
   |          ^^^^^ `()` is not a future
   |
   = help: the trait `Future` is not implemented for `()`
   = note: () must be a future or must implement `IntoFuture` to be awaited
   = note: required for `()` to implement `IntoFuture`
help: remove the `.await`
   |
LL -     e!().await;
LL +     e!();
   |
```
```
error[E0277]: the trait bound `String: Copy` is not satisfied
  --> $DIR/const-fn-in-vec.rs:1:47
   |
LL | static _MAYBE_STRINGS: [Option<String>; 5] = [None; 5];
   |                                               ^^^^ the trait `Copy` is not implemented for `String`
   |
   = note: required for `Option<String>` to implement `Copy`
   = note: the `Copy` trait is required because this value will be copied for each element of the array
help: create an inline `const` block
   |
LL | static _MAYBE_STRINGS: [Option<String>; 5] = [const { None }; 5];
   |                                               +++++++      +
```
2025-06-06 20:12:11 +00:00

21 lines
747 B
Plaintext

error[E0277]: the trait bound `String: Copy` is not satisfied
--> $DIR/trait-error.rs:5:6
|
LL | [Foo(String::new()); 4];
| ^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `String`
|
note: required for `Foo<String>` to implement `Copy`
--> $DIR/trait-error.rs:1:10
|
LL | #[derive(Copy, Clone)]
| ^^^^ unsatisfied trait bound introduced in this `derive` macro
= note: the `Copy` trait is required because this value will be copied for each element of the array
help: create an inline `const` block
|
LL | [const { Foo(String::new()) }; 4];
| +++++++ +
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0277`.