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`
```
96 lines
4.3 KiB
Plaintext
96 lines
4.3 KiB
Plaintext
error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
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--> $DIR/offset-of-dst-field.rs:36:5
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LL | offset_of!(Alpha, z);
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| ^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `[u8]`
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= note: this error originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
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error[E0277]: the size for values of type `(dyn Trait + 'static)` cannot be known at compilation time
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--> $DIR/offset-of-dst-field.rs:37:5
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LL | offset_of!(Beta, z);
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| ^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `(dyn Trait + 'static)`
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= note: this error originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
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error[E0277]: the size for values of type `Extern` cannot be known at compilation time
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--> $DIR/offset-of-dst-field.rs:38:5
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LL | offset_of!(Gamma, z);
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| ^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `Extern`
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= note: this error originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
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error[E0277]: the size for values of type `dyn Trait` cannot be known at compilation time
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--> $DIR/offset-of-dst-field.rs:40:5
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LL | offset_of!((u8, dyn Trait), 1);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `dyn Trait`
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= note: this error originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
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error[E0277]: the size for values of type `Extern` cannot be known at compilation time
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--> $DIR/offset-of-dst-field.rs:45:5
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LL | offset_of!(Delta<Extern>, z);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `Extern`
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= note: this error originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
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error[E0277]: the size for values of type `dyn Trait` cannot be known at compilation time
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--> $DIR/offset-of-dst-field.rs:46:5
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LL | offset_of!(Delta<dyn Trait>, z);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `dyn Trait`
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= note: this error originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
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error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
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--> $DIR/offset-of-dst-field.rs:44:5
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LL | offset_of!(Delta<Alpha>, z);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: within `Alpha`, the trait `Sized` is not implemented for `[u8]`
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note: required because it appears within the type `Alpha`
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--> $DIR/offset-of-dst-field.rs:5:8
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LL | struct Alpha {
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| ^^^^^
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= note: this error originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
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error[E0277]: the size for values of type `T` cannot be known at compilation time
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--> $DIR/offset-of-dst-field.rs:50:5
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LL | fn generic_with_maybe_sized<T: ?Sized>() -> usize {
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| - this type parameter needs to be `Sized`
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LL | offset_of!(Delta<T>, z)
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| ^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= note: this error originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
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help: consider removing the `?Sized` bound to make the type parameter `Sized`
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LL - fn generic_with_maybe_sized<T: ?Sized>() -> usize {
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LL + fn generic_with_maybe_sized<T>() -> usize {
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error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
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--> $DIR/offset-of-dst-field.rs:54:16
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LL | offset_of!(([u8], u8), 1);
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| ^^^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `[u8]`
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= note: only the last element of a tuple may have a dynamically sized type
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error: aborting due to 9 previous errors
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For more information about this error, try `rustc --explain E0277`.
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