Function jail::helpers::jail_mount_bind_if_exists

pub fn jail_mount_bind_if_exists<P: AsRef<OsStr>>(
    jail: &mut Minijail,
    dirs: &[P]
) -> Result<()>

Mirror-mount all the directories in dirs into jail on a best-effort basis.

This function will not return an error if any of the directories in dirs is missing.