"-ignerr" => { ignore_errors = true; },
"-dumpfrm" => { dump_frames = true; },
_ => { println!("unknown option {}", args[cur_arg]); return; },
"-ignerr" => { ignore_errors = true; },
"-dumpfrm" => { dump_frames = true; },
_ => { println!("unknown option {}", args[cur_arg]); return; },