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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`
```
27 lines
1.0 KiB
Plaintext
27 lines
1.0 KiB
Plaintext
warning: the feature `unsized_locals` is incomplete and may not be safe to use and/or cause compiler crashes
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--> $DIR/issue-50940-with-feature.rs:1:12
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LL | #![feature(unsized_locals, unsized_fn_params)]
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| ^^^^^^^^^^^^^^
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= note: see issue #48055 <https://github.com/rust-lang/rust/issues/48055> for more information
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= note: `#[warn(incomplete_features)]` on by default
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error[E0277]: the size for values of type `str` cannot be known at compilation time
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--> $DIR/issue-50940-with-feature.rs:6:5
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LL | A as fn(str) -> A<str>;
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| ^ doesn't have a size known at compile-time
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= help: within `A<str>`, the trait `Sized` is not implemented for `str`
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note: required because it appears within the type `A<str>`
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--> $DIR/issue-50940-with-feature.rs:5:12
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LL | struct A<X: ?Sized>(X);
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| ^
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= note: the return type of a function must have a statically known size
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error: aborting due to 1 previous error; 1 warning emitted
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For more information about this error, try `rustc --explain E0277`.
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