static void logModuleOutput() {
  final File logFile = getProgramFile("output.txt");
  final LineBuffer buf = new(voidfunc(S line) {
    appendToTextFile(logFile, "[" + localDateWithMilliseconds() + "] " + line + "\n");
  });
  
  print_forAllThreads(voidfunc(S s) {
    buf.append(s);
  });
}