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`
```
22 lines
733 B
Plaintext
22 lines
733 B
Plaintext
error[E0277]: `Error` doesn't implement `Debug`
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--> $DIR/derives-span-Debug-enum.rs:9:6
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LL | #[derive(Debug)]
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| ----- in this derive macro expansion
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...
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LL | Error
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| ^^^^^ `Error` cannot be formatted using `{:?}`
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= help: the trait `Debug` is not implemented for `Error`
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= note: add `#[derive(Debug)]` to `Error` or manually `impl Debug for Error`
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= note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
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help: consider annotating `Error` with `#[derive(Debug)]`
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LL + #[derive(Debug)]
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LL | struct Error;
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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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