5b54286640
Remove the "which is required by `{root_obligation}`" post-script in
"the trait `X` is not implemented for `Y`" explanation in E0277. This
information is already conveyed in the notes explaining requirements,
making it redundant while making the text (particularly in labels)
harder to read.
```
error[E0277]: the trait bound `NotCopy: Copy` is not satisfied
--> $DIR/wf-static-type.rs:10:13
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LL | static FOO: IsCopy<Option<NotCopy>> = IsCopy { t: None };
| ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `NotCopy`
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= note: required for `Option<NotCopy>` to implement `Copy`
note: required by a bound in `IsCopy`
--> $DIR/wf-static-type.rs:7:17
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LL | struct IsCopy<T:Copy> { t: T }
| ^^^^ required by this bound in `IsCopy`
```
vs the prior
```
error[E0277]: the trait bound `NotCopy: Copy` is not satisfied
--> $DIR/wf-static-type.rs:10:13
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LL | static FOO: IsCopy<Option<NotCopy>> = IsCopy { t: None };
| ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `NotCopy`, which is required by `Option<NotCopy>: Copy`
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= note: required for `Option<NotCopy>` to implement `Copy`
note: required by a bound in `IsCopy`
--> $DIR/wf-static-type.rs:7:17
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LL | struct IsCopy<T:Copy> { t: T }
| ^^^^ required by this bound in `IsCopy`
```
35 lines
1.5 KiB
Plaintext
35 lines
1.5 KiB
Plaintext
error[E0277]: the type `&mut Context<'_>` may not be safely transferred across an unwind boundary
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--> $DIR/async-is-unwindsafe.rs:12:5
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LL | is_unwindsafe(async {
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| ^ ----- within this `{async block@$DIR/async-is-unwindsafe.rs:12:19: 12:24}`
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| _____|
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LL | |
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LL | | use std::ptr::null;
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LL | | use std::task::{Context, RawWaker, RawWakerVTable, Waker};
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... |
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LL | | drop(cx_ref);
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LL | | });
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| |______^ `&mut Context<'_>` may not be safely transferred across an unwind boundary
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= help: within `{async block@$DIR/async-is-unwindsafe.rs:12:19: 12:24}`, the trait `UnwindSafe` is not implemented for `&mut Context<'_>`
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= note: `UnwindSafe` is implemented for `&Context<'_>`, but not for `&mut Context<'_>`
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note: future does not implement `UnwindSafe` as this value is used across an await
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--> $DIR/async-is-unwindsafe.rs:25:18
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LL | let cx_ref = &mut cx;
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| ------ has type `&mut Context<'_>` which does not implement `UnwindSafe`
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LL |
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LL | async {}.await; // this needs an inner await point
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| ^^^^^ await occurs here, with `cx_ref` maybe used later
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note: required by a bound in `is_unwindsafe`
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--> $DIR/async-is-unwindsafe.rs:3:26
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LL | fn is_unwindsafe(_: impl std::panic::UnwindSafe) {}
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| ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `is_unwindsafe`
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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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