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`
```
29 lines
862 B
Plaintext
29 lines
862 B
Plaintext
error[E0277]: the trait bound `(): Foo` is not satisfied
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--> $DIR/point-at-failing-nested.rs:22:17
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LL | needs_foo::<()>();
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| ^^ the trait `Bar` is not implemented for `()`
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help: this trait has no implementations, consider adding one
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--> $DIR/point-at-failing-nested.rs:4:1
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LL | trait Bar {}
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| ^^^^^^^^^
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note: required for `()` to implement `Foo`
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--> $DIR/point-at-failing-nested.rs:9:12
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LL | impl<T, U> Foo for T
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| ^^^ ^
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...
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LL | U: Bar,
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| --- unsatisfied trait bound introduced here
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note: required by a bound in `needs_foo`
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--> $DIR/point-at-failing-nested.rs:20:17
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LL | fn needs_foo<T: Foo>() {}
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| ^^^ required by this bound in `needs_foo`
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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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