svoid addTestToScorerWithPrintLog(Scorer<S> scorer, Runnable test) {
  if (test == null) ret;
  try {
    new Flag error;
    S output = hijackPrint_tee(r {
      try {
        test.run();
      } catch print e {
        error.raise();
      }
    };
    scorer.add(!error!, output);
  }
}