def addError(self, test, error):
        self.errors.append((test, self._getFailure(error)))
yield lines with hexdump of data
dataset/ETHPy150Open twisted/twisted/twisted/trial/reporter.py/TestResult.addError--crossover with--dataset/ETHPy150Open pyserial/pyserial/serial/urlhandler/protocol_spy.py/hexdump