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@estebank estebank commented Jun 4, 2025

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];
   |                                               +++++++      +

Part of #141973

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rustbot commented Jun 4, 2025

r? @wesleywiser

rustbot has assigned @wesleywiser.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

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@rustbot rustbot added A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Jun 4, 2025
@estebank estebank force-pushed the obligation-cause-code-suggestion branch from 6b4364a to 3ca4732 Compare June 4, 2025 21:40
@estebank estebank changed the title Obligation cause code suggestion Make obligation cause code suggestions verbose Jun 4, 2025
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pls convert the semicolon removal suggestion to hidden, then r=me

|
= help: the trait `std::fmt::Display` is not implemented for `()`
= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
help: remove this semicolon
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This should be hidden. I don't think showing the user how to remove a semicolon is particularly useful 😅

```
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];
   |                                               +++++++      +
```
@estebank estebank force-pushed the obligation-cause-code-suggestion branch from 3ca4732 to ac980ca Compare June 6, 2025 20:12
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estebank commented Jun 6, 2025

@bors r=compiler-errors

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bors commented Jun 6, 2025

📌 Commit ac980ca has been approved by compiler-errors

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jun 6, 2025
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@bors rollup

jhpratt added a commit to jhpratt/rust that referenced this pull request Jun 7, 2025
…gestion, r=compiler-errors

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];
   |                                               +++++++      +
```

Part of rust-lang#141973
bors added a commit that referenced this pull request Jun 7, 2025
Rollup of 8 pull requests

Successful merges:

 - #137992 (Stabilise `os_string_pathbuf_leak`)
 - #141558 (Limit the size of cgu names when using the `-Zhuman-readable-cgu-name…)
 - #141797 (compiler: set Apple frame pointers by architecture)
 - #141857 (coretests: move float tests from num to floats module and use a more flexible macro to generate them)
 - #142045 (Make obligation cause code suggestions verbose)
 - #142076 (Check documentation of bootstrap in PR CI)
 - #142110 (Add solaris targets to build-manifest)
 - #142131 (Make cast suggestions verbose)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit cf7ffa1 into rust-lang:master Jun 7, 2025
10 checks passed
@rustbot rustbot added this to the 1.89.0 milestone Jun 7, 2025
rust-timer added a commit that referenced this pull request Jun 7, 2025
Rollup merge of #142045 - estebank:obligation-cause-code-suggestion, r=compiler-errors

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];
   |                                               +++++++      +
```

Part of #141973
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5 participants