message: Show abnormal errors on windows, too.
diff: @@ -281,7 +281,7 @@ fn rustc<'a, 'cfg>(
  .downcast_ref::<ProcessError>()
  .as_ref()
  .and_then(|perr| perr.exit.and_then(|e| e.code()))
  - .is_none()
  + != Some(1)
  {
  return err;
  }
  