libc 0.2.168

on Rust Cargo

Added

• Linux: Add new process flags (#4174)
• Linux: Make IFA_* constants available on all Linux targets #4185
• Linux: add MAP_DROPPABLE #4173
• Solaris, Illumos: add SIGRTMIN and SIGRTMAX #4171
• Unix, Linux: adding POSIX memccpy and mempcpy GNU extension <#4186.

Deprecated

• FreeBSD: Deprecate the CAP_UNUSED* and CAP_ALL* constants (#4183)

Fixed

• Make the Debug implementation for unions opaque (#4176)

Other

• Allow the unpredictable_function_pointer_comparisons lint where needed #4177
• CI: Upload artifacts created by libc-test #4180
• CI: Use workflow commands to group output by target #4179
• CI: add caching #4183