var net/http.errRequestCanceledConn

5 uses

	net/http (current package)
		transport.go#L1381: 				return nil, errRequestCanceledConn
		transport.go#L1386: 					err = errRequestCanceledConn
		transport.go#L1395: 		return nil, errRequestCanceledConn
		transport.go#L1400: 			err = errRequestCanceledConn
		transport.go#L2508: var errRequestCanceledConn = errors.New("net/http: request canceled while waiting for connection") // TODO: unify?