rust/tests/ui/traits/issue-71036.stderr

error[E0277]: the trait bound `&'a T: Unsize<&'a U>` is not satisfied
  --> $DIR/issue-71036.rs:11:1
   |
LL | impl<'a, T: ?Sized + Unsize<U>, U: ?Sized> DispatchFromDyn<Foo<'a, U>> for Foo<'a, T> {}
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Unsize<&'a U>` is not implemented for `&'a T`
   |
   = note: all implementations of `Unsize` are provided automatically by the compiler, see <https://doc.rust-lang.org/stable/std/marker/trait.Unsize.html> for more information
   = note: required for `&'a &'a T` to implement `DispatchFromDyn<&'a &'a U>`

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0277`.
pretty: trim paths of unique symbols If a symbol name can only be imported from one place for a type, and as long as it was not glob-imported anywhere in the current crate, we can trim its printed path and print only the name. This has wide implications on error messages with types, for example, shortening `std::vec::Vec` to just `Vec`, as long as there is no other `Vec` importable anywhere. This adds a new '-Z trim-diagnostic-paths=false' option to control this feature. On the good path, with no diagnosis printed, we should try to avoid issuing this query, so we need to prevent trimmed_def_paths query on several cases. This change also relies on a previous commit that differentiates between `Debug` and `Display` on various rustc types, where the latter is trimmed and presented to the user and the former is not. 2020-09-02 07:40:56 +00:00			error[E0277]: the trait bound `&'a T: Unsize<&'a U>` is not satisfied
Don't ICE on missing `Unsize` impl 2020-05-14 10:37:58 +00:00			`--> $DIR/issue-71036.rs:11:1`
			`\|`
			`LL \| impl<'a, T: ?Sized + Unsize<U>, U: ?Sized> DispatchFromDyn<Foo<'a, U>> for Foo<'a, T> {}`
Remove detail from label/note that is already available in other note 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 \| LL \| static FOO: IsCopy<Option<NotCopy>> = IsCopy { t: None }; \| ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `NotCopy` \| = note: required for `Option<NotCopy>` to implement `Copy` note: required by a bound in `IsCopy` --> $DIR/wf-static-type.rs:7:17 \| 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 \| 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 \| LL \| struct IsCopy<T:Copy> { t: T } \| ^^^^ required by this bound in `IsCopy` ``` 2024-10-24 21:14:17 +00:00			\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Unsize<&'a U>` is not implemented for `&'a T`
Don't ICE on missing `Unsize` impl 2020-05-14 10:37:58 +00:00			`\|`
			= note: all implementations of `Unsize` are provided automatically by the compiler, see <https://doc.rust-lang.org/stable/std/marker/trait.Unsize.html> for more information
Reword "Required because of the requirements on the impl of ..." 2022-08-15 20:31:37 +00:00			= note: required for `&'a &'a T` to implement `DispatchFromDyn<&'a &'a U>`
Don't ICE on missing `Unsize` impl 2020-05-14 10:37:58 +00:00
Show number in error message even for one error Co-authored-by: Adrian <adrian.iosdev@gmail.com> 2023-11-21 15:44:16 +00:00			`error: aborting due to 1 previous error`
Don't ICE on missing `Unsize` impl 2020-05-14 10:37:58 +00:00
			For more information about this error, try `rustc --explain E0277`.