rust/tests/ui/traits/issue-7013.stderr

error[E0277]: `Rc<RefCell<A>>` cannot be sent between threads safely
  --> $DIR/issue-7013.rs:24:19
   |
LL |     let a = A {v: Box::new(B{v: None}) as Box<dyn Foo + Send>};
   |                   ^^^^^^^^^^^^^^^^^^^^ `Rc<RefCell<A>>` cannot be sent between threads safely
   |
   = help: within `B`, the trait `Send` is not implemented for `Rc<RefCell<A>>`, which is required by `B: Send`
note: required because it appears within the type `Option<Rc<RefCell<A>>>`
  --> $SRC_DIR/core/src/option.rs:LL:COL
note: required because it appears within the type `B`
  --> $DIR/issue-7013.rs:8:8
   |
LL | struct B {
   |        ^
   = note: required for the cast from `Box<B>` to `Box<dyn Foo + Send>`

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]: `Rc<RefCell<A>>` cannot be sent between threads safely
Remove even more box syntax uses from src/test Prior work, notably 6550021124451628b1efc60c59284465b109e3aa from #88316 has removed box syntax from most of the testsuite. However, some tests were left out. This commit removes box_syntax uses from more locations in src/test. Some tests that are very box syntax specific are not being migrated. 2022-07-07 02:36:10 +00:00			`--> $DIR/issue-7013.rs:24:19`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00			`\|`
Remove even more box syntax uses from src/test Prior work, notably 6550021124451628b1efc60c59284465b109e3aa from #88316 has removed box syntax from most of the testsuite. However, some tests were left out. This commit removes box_syntax uses from more locations in src/test. Some tests that are very box syntax specific are not being migrated. 2022-07-07 02:36:10 +00:00			`LL \| let a = A {v: Box::new(B{v: None}) as Box<dyn Foo + Send>};`
			\| ^^^^^^^^^^^^^^^^^^^^ `Rc<RefCell<A>>` cannot be sent between threads safely
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00			`\|`
Provide more context on derived obligation error primary label Expand the primary span of E0277 when the immediate unmet bound is not what the user wrote: ``` error[E0277]: the trait bound `i32: Bar` is not satisfied --> f100.rs:6:6 \| 6 \| <i32 as Foo>::foo(); \| ^^^ the trait `Bar` is not implemented for `i32`, which is required by `i32: Foo` \| help: this trait has no implementations, consider adding one --> f100.rs:2:1 \| 2 \| trait Bar {} \| ^^^^^^^^^ note: required for `i32` to implement `Foo` --> f100.rs:3:14 \| 3 \| impl<T: Bar> Foo for T {} \| --- ^^^ ^ \| \| \| unsatisfied trait bound introduced here ``` Fix #40120. 2024-01-29 18:31:02 +00:00			= help: within `B`, the trait `Send` is not implemented for `Rc<RefCell<A>>`, which is required by `B: Send`
rustc_middle: Fix `opt_item_ident` for non-local def ids 2023-05-03 16:27:29 +00:00			note: required because it appears within the type `Option<Rc<RefCell<A>>>`
			`--> $SRC_DIR/core/src/option.rs:LL:COL`
Point at `impl` and type defs introducing requirements on E0277 2021-03-30 20:37:30 +00:00			note: required because it appears within the type `B`
Remove even more box syntax uses from src/test Prior work, notably 6550021124451628b1efc60c59284465b109e3aa from #88316 has removed box syntax from most of the testsuite. However, some tests were left out. This commit removes box_syntax uses from more locations in src/test. Some tests that are very box syntax specific are not being migrated. 2022-07-07 02:36:10 +00:00			`--> $DIR/issue-7013.rs:8:8`
Point at `impl` and type defs introducing requirements on E0277 2021-03-30 20:37:30 +00:00			`\|`
			`LL \| struct B {`
			`\| ^`
Note base types of coercion 2023-05-11 02:10:56 +00:00			= note: required for the cast from `Box<B>` to `Box<dyn Foo + Send>`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +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`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00
			For more information about this error, try `rustc --explain E0277`.