var net/http.errRequestCanceledConn

5 uses

	net/http (current package)
		transport.go#L1406: 				return nil, errRequestCanceledConn
		transport.go#L1411: 					err = errRequestCanceledConn
		transport.go#L1420: 		return nil, errRequestCanceledConn
		transport.go#L1425: 			err = errRequestCanceledConn
		transport.go#L2550: var errRequestCanceledConn = errors.New("net/http: request canceled while waiting for connection") // TODO: unify?