rust/tests/ui/issues/issue-7364.stderr

error[E0277]: `RefCell<isize>` cannot be shared between threads safely
  --> $DIR/issue-7364.rs:4:15
   |
LL | static boxed: Box<RefCell<isize>> = Box::new(RefCell::new(0));
   |               ^^^^^^^^^^^^^^^^^^^ `RefCell<isize>` cannot be shared between threads safely
   |
   = help: the trait `Sync` is not implemented for `RefCell<isize>`
   = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead
   = note: required for `Unique<RefCell<isize>>` to implement `Sync`
note: required because it appears within the type `Box<RefCell<isize>>`
  --> $SRC_DIR/alloc/src/boxed.rs:LL:COL
   = note: shared static variables must have a type that implements `Sync`

error: aborting due to 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]: `RefCell<isize>` cannot be shared 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-7364.rs:4:15`
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 \| static boxed: Box<RefCell<isize>> = Box::new(RefCell::new(0));`
Perform Sync check on static items in wf-check instead of during const checks 2021-11-26 14:11:45 +00:00			\| ^^^^^^^^^^^^^^^^^^^ `RefCell<isize>` cannot be shared between threads safely
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: the trait `Sync` is not implemented for `RefCell<isize>`
Add `rustc_on_unimplemented` on `Sync` for cell types Suggest using a lock instead. 2023-01-16 17:51:31 +00:00			= note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead
Reword "Required because of the requirements on the impl of ..." 2022-08-15 20:31:37 +00:00			= note: required for `Unique<RefCell<isize>>` to implement `Sync`
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 `Box<RefCell<isize>>`
			`--> $SRC_DIR/alloc/src/boxed.rs:LL:COL`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00			= note: shared static variables must have a type that implements `Sync`

Perform Sync check on static items in wf-check instead of during const checks 2021-11-26 14:11:45 +00:00			`error: aborting due to previous error`
Move some `compile-fail` tests to `ui` 2018-07-15 21:11:54 +00:00
Perform Sync check on static items in wf-check instead of during const checks 2021-11-26 14:11:45 +00:00			For more information about this error, try `rustc --explain E0277`.