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ac980cace8
```
error[E0277]: `()` is not a future
--> $DIR/unnecessary-await.rs:28:10
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LL | e!().await;
| ^^^^^ `()` is not a future
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= 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`
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LL - e!().await;
LL + e!();
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```
```
error[E0277]: the trait bound `String: Copy` is not satisfied
--> $DIR/const-fn-in-vec.rs:1:47
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LL | static _MAYBE_STRINGS: [Option<String>; 5] = [None; 5];
| ^^^^ the trait `Copy` is not implemented for `String`
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= 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
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LL | static _MAYBE_STRINGS: [Option<String>; 5] = [const { None }; 5];
| +++++++ +
```
72 lines
2.1 KiB
Plaintext
72 lines
2.1 KiB
Plaintext
error[E0277]: `()` is not a future
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--> $DIR/unnecessary-await.rs:9:11
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LL | boo().await;
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| ----- ^^^^^ `()` is not a future
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| this call returns `()`
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= help: the trait `Future` is not implemented for `()`
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= note: () must be a future or must implement `IntoFuture` to be awaited
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= note: required for `()` to implement `IntoFuture`
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help: remove the `.await`
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LL - boo().await;
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LL + boo();
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help: alternatively, consider making `fn boo` asynchronous
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LL | async fn boo() {}
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| +++++
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error[E0277]: `()` is not a future
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--> $DIR/unnecessary-await.rs:28:10
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LL | e!().await;
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| ^^^^^ `()` is not a future
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= help: the trait `Future` is not implemented for `()`
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= note: () must be a future or must implement `IntoFuture` to be awaited
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= note: required for `()` to implement `IntoFuture`
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help: remove the `.await`
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LL - e!().await;
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LL + e!();
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error[E0277]: `()` is not a future
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--> $DIR/unnecessary-await.rs:22:15
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LL | $expr.await
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| ^^^^^
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| |
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| `()` is not a future
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| remove the `.await`
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...
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LL | f!(());
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| ------ in this macro invocation
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= help: the trait `Future` is not implemented for `()`
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= note: () must be a future or must implement `IntoFuture` to be awaited
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= note: required for `()` to implement `IntoFuture`
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= note: this error originates in the macro `f` (in Nightly builds, run with -Z macro-backtrace for more info)
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error[E0277]: `()` is not a future
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--> $DIR/unnecessary-await.rs:36:20
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LL | for x in [] {}.await
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| ^^^^^ `()` is not a future
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= help: the trait `Future` is not implemented for `()`
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= note: () must be a future or must implement `IntoFuture` to be awaited
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= note: required for `()` to implement `IntoFuture`
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help: remove the `.await`
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LL - for x in [] {}.await
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LL + for x in [] {}
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error: aborting due to 4 previous errors
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For more information about this error, try `rustc --explain E0277`.
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