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`
```
42 lines
1.6 KiB
Plaintext
42 lines
1.6 KiB
Plaintext
error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
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--> $DIR/unsized-exprs.rs:22:26
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LL | udrop::<(i32, [u8])>((42, *foo()));
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| ^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: within `({integer}, [u8])`, the trait `Sized` is not implemented for `[u8]`
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= note: required because it appears within the type `({integer}, [u8])`
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= note: tuples must have a statically known size to be initialized
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error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
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--> $DIR/unsized-exprs.rs:24:22
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LL | udrop::<A<[u8]>>(A { 0: *foo() });
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| ^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: within `A<[u8]>`, the trait `Sized` is not implemented for `[u8]`
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note: required because it appears within the type `A<[u8]>`
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--> $DIR/unsized-exprs.rs:3:8
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LL | struct A<X: ?Sized>(X);
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| ^
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= note: structs must have a statically known size to be initialized
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error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
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--> $DIR/unsized-exprs.rs:26:22
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LL | udrop::<A<[u8]>>(A(*foo()));
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| ^^^^^^^^^ doesn't have a size known at compile-time
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= help: within `A<[u8]>`, the trait `Sized` is not implemented for `[u8]`
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note: required because it appears within the type `A<[u8]>`
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--> $DIR/unsized-exprs.rs:3:8
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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 3 previous errors
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For more information about this error, try `rustc --explain E0277`.
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