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``` 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]; | +++++++ + ```
22 lines
787 B
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22 lines
787 B
Plaintext
error[E0277]: the trait bound `Bar: Copy` is not satisfied
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--> $DIR/fn-call-in-non-const.rs:14:32
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LL | let _: [Option<Bar>; 2] = [no_copy(); 2];
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| ^^^^^^^^^ the trait `Copy` is not implemented for `Bar`
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= note: required for `Option<Bar>` to implement `Copy`
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= note: the `Copy` trait is required because this value will be copied for each element of the array
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help: consider annotating `Bar` with `#[derive(Copy)]`
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LL + #[derive(Copy)]
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LL | struct Bar;
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help: create an inline `const` block
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LL | let _: [Option<Bar>; 2] = [const { no_copy() }; 2];
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| +++++++ +
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0277`.
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