structuredAttrs is enabled

trying https://static.crates.io/crates/roman-numerals-rs/3.1.0/download
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100   5308 100   5308   0      0 149.8k      0                              0