rust/tests/ui/issues/issue-37534.stderr

error[E0404]: expected trait, found derive macro `Hash`
  --> $DIR/issue-37534.rs:1:16
   |
LL | struct Foo<T: ?Hash> {}
   |                ^^^^ not a trait
   |
help: consider importing this trait instead
   |
LL + use std::hash::Hash;
   |

warning: relaxing a default bound only does something for `?Sized`; all other traits are not bound by default
  --> $DIR/issue-37534.rs:1:15
   |
LL | struct Foo<T: ?Hash> {}
   |               ^^^^^

error[E0392]: type parameter `T` is never used
  --> $DIR/issue-37534.rs:1:12
   |
LL | struct Foo<T: ?Hash> {}
   |            ^ unused type parameter
   |
   = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`

error: aborting due to 2 previous errors; 1 warning emitted

Some errors have detailed explanations: E0392, E0404.
For more information about an error, try `rustc --explain E0392`.
resolve: Attempt to resolve unresolved paths in macro namespace 2019-07-15 00:28:17 +00:00			error[E0404]: expected trait, found derive macro `Hash`
Remove licenses 2018-12-25 15:56:47 +00:00			`--> $DIR/issue-37534.rs:1:16`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00			`\|`
Improve some diagnostics around `?Trait` bounds 2023-10-30 17:47:07 +00:00			`LL \| struct Foo<T: ?Hash> {}`
resolve: Attempt to resolve unresolved paths in macro namespace 2019-07-15 00:28:17 +00:00			`\| ^^^^ not a trait`
Increase spacing for suggestions in diagnostics Make the spacing between the code snippet and verbose structured suggestions consistent with note and help messages. 2019-10-24 05:20:58 +00:00			`\|`
reword "possible candidate" import suggestion 2020-05-04 22:12:06 +00:00			`help: consider importing this trait instead`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00			`\|`
Tweak output for 'add line' suggestion 2023-03-18 02:18:39 +00:00			`LL + use std::hash::Hash;`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00			`\|`

Improve some diagnostics around `?Trait` bounds 2023-10-30 17:47:07 +00:00			warning: relaxing a default bound only does something for `?Sized`; all other traits are not bound by default
			`--> $DIR/issue-37534.rs:1:15`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00			`\|`
Improve some diagnostics around `?Trait` bounds 2023-10-30 17:47:07 +00:00			`LL \| struct Foo<T: ?Hash> {}`
			`\| ^^^^^`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00
Improve the diagnostics for unused generic parameters 2024-02-01 14:58:07 +00:00			error[E0392]: type parameter `T` is never used
Remove licenses 2018-12-25 15:56:47 +00:00			`--> $DIR/issue-37534.rs:1:12`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00			`\|`
Improve some diagnostics around `?Trait` bounds 2023-10-30 17:47:07 +00:00			`LL \| struct Foo<T: ?Hash> {}`
Improve the diagnostics for unused generic parameters 2024-02-01 14:58:07 +00:00			`\| ^ unused type parameter`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00			`\|`
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			= help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00
rustc: Add a warning count upon completion 2020-03-11 15:30:09 +00:00			`error: aborting due to 2 previous errors; 1 warning emitted`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00
resolve: Attempt to resolve unresolved paths in macro namespace 2019-07-15 00:28:17 +00:00			`Some errors have detailed explanations: E0392, E0404.`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00			For more information about an error, try `rustc --explain E0392`.