File	Line Coverage			Functions		Branches
mutex.rs	0%	0%	0 / 62	0%	0 / 13	100%	0 / 0
once.rs	0%	0%	0 / 63	0%	0 / 13	100%	0 / 0
rw_lock.rs	0%	0%	0 / 179	0%	0 / 28	100%	0 / 0