metadata << "mode: " << (stat_buf.st_mode & 07777) << "\n";
metadata << "atime: " << stat_buf.st_atime << "\n";
metadata << "ctime: " << stat_buf.st_ctime << "\n";
metadata << "mode: " << (stat_buf.st_mode & 07777) << "\n";
metadata << "atime: " << stat_buf.st_atime << "\n";
metadata << "ctime: " << stat_buf.st_ctime << "\n";