net/http.transportRequest.mu (field)

5 uses

	net/http (current package)
		transport.go#L458: 	mu  sync.Mutex // guards err
		transport.go#L470: 	tr.mu.Lock()
		transport.go#L474: 	tr.mu.Unlock()
		transport.go#L2018: 	req.mu.Lock()
		transport.go#L2020: 	req.mu.Unlock()