message: Fix overlapping progress with stdout.
diff: @@ -300,6 +300,7 @@ impl<'a, 'cfg> JobQueue<'a, 'cfg> {
  plan.update(&module_name, &cmd, &filenames)?;
  }
  Message::Stdout(out) => {
  + self.progress.clear();
  println!("{}", out);
  }
  Message::Stderr(err) => {
  