Constant STICKY_BIT

Source
pub(crate) const STICKY_BIT: u32 = 0o1000;
Available on target_family="unix" only.
Expand description

Definition for the “sticky bit”, which on Unix means that the contents of directory may not be renamed, deleted, or otherwise modified by a non-owner of those contents, even if the user has write permissions on the directory.

This is the usual behavior for /tmp: You can make your own directories in /tmp, but you can’t modify other people’s.

(We’d use libc’s version of S_ISVTX, but they vacillate between u16 and u32 depending what platform you’re on.)