rust/src/test/ui/panic-while-printing.rs, branch 1.56.1

Merge set_panic and set_print into set_output_capture.

2020-11-10T20:58:13+00:00

There were no use cases for setting them separately. Merging them simplifies some things.

Use Vec for LOCAL_STD{OUT,ERR} instead of dyn Write.

2020-11-10T20:58:09+00:00

It was only ever used with Vec anyway. This simplifies some things. - It no longer needs to be flushed, because that's a no-op anyway for a Vec. - Writing to a Vec never fails. - No #[cfg(test)] code is needed anymore to use `realstd` instead of `std`, because Vec comes from alloc, not std (like Write).

Update tests for updated set_panic.

2020-11-10T20:57:05+00:00

Capture output from threads spawned in tests

2020-10-23T01:15:44+00:00

Fixes #42474.

std: Don't abort process when printing panics in tests

2020-03-18T14:06:13+00:00

This commit fixes an issue when using `set_print` and friends, notably used by libtest, to avoid aborting the process if printing panics. This previously panicked due to borrowing a mutable `RefCell` twice, and this is worked around by borrowing these cells for less time, instead taking out and removing contents temporarily. Closes #69558