func sync.fatal

4 uses

	sync (current package)
		mutex.go#L21: func fatal(string)
		mutex.go#L231: 		fatal("sync: unlock of unlocked mutex")
		rwmutex.go#L130: 		fatal("sync: RUnlock of unlocked RWMutex")
		rwmutex.go#L210: 		fatal("sync: Unlock of unlocked RWMutex")