structuredAttrs is enabled

trying https://static.crates.io/crates/ptr_meta_derive/0.3.1/download
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed

  0      0   0      0   0      0      0      0                              0
100   4693 100   4693   0      0 123.5k      0                              0
100   4693 100   4693   0      0 123.3k      0                              0
100   4693 100   4693   0      0 123.0k      0                              0