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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`
```
24 lines
1.0 KiB
Plaintext
24 lines
1.0 KiB
Plaintext
error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
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--> $DIR/unsized-union-ice.rs:6:10
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LL | val: std::mem::ManuallyDrop<[u8]>,
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: within `ManuallyDrop<[u8]>`, the trait `Sized` is not implemented for `[u8]`
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note: required because it appears within the type `ManuallyDrop<[u8]>`
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--> $SRC_DIR/core/src/mem/manually_drop.rs:LL:COL
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= note: no field of a union may have a dynamically sized type
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= help: change the field's type to have a statically known size
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help: borrowed types always have a statically known size
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LL | val: &std::mem::ManuallyDrop<[u8]>,
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| +
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help: the `Box` type always has a statically known size and allocates its contents in the heap
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LL | val: Box<std::mem::ManuallyDrop<[u8]>>,
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| ++++ +
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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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