Rollup of 5 pull requests#98263

Closed

JohnTitor wants to merge 12 commits intorust-lang:masterfrom

JohnTitor:rollup-ndppuff

Commits on Jun 14, 2022

Stabilize `Path::try_exists()` and improve doc
Kixunil
committed

Commits on Jun 16, 2022

Leak pthreax_mutex_t when it's dropped while locked.
m-ou-se
committed

Commits on Jun 18, 2022

Make debug_triple depend on target json file content rather than file path
bjorn3
committed

Commits on Jun 19, 2022