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`
|
= 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
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27 lines
1.1 KiB
Plaintext
error[E0277]: the type `[i32]` cannot be indexed by `i32`
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--> $DIR/slice-index.rs:8:7
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LL | x[1i32];
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| ^^^^ slice indices are of type `usize` or ranges of `usize`
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= help: the trait `SliceIndex<[i32]>` is not implemented for `i32`
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= help: the trait `SliceIndex<[i32]>` is implemented for `usize`
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= help: for that trait implementation, expected `usize`, found `i32`
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= note: required for `[i32]` to implement `Index<i32>`
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error[E0277]: the type `[i32]` cannot be indexed by `RangeTo<i32>`
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--> $DIR/slice-index.rs:9:7
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LL | x[..1i32];
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| ^^^^^^ slice indices are of type `usize` or ranges of `usize`
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= help: the trait `SliceIndex<[i32]>` is not implemented for `RangeTo<i32>`
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= help: the following other types implement trait `SliceIndex<T>`:
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`RangeTo<usize>` implements `SliceIndex<[T]>`
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`RangeTo<usize>` implements `SliceIndex<str>`
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= note: required for `[i32]` to implement `Index<RangeTo<i32>>`
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0277`.
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