message: Unconditionally update symbols
  All paths to an ArchiveBuilder::build call update_symbols first.
diff: @@ -105,8 +105,6 @@ fn add_archive<F>(&mut self, archive_path: &Path, mut skip: F) -> std::io::Resul
  Ok(())
  }
  - fn update_symbols(&mut self) {}
  -
  fn build(mut self) {
  enum BuilderKind {
  Bsd(ar::Builder<File>),
  