structuredAttrs is enabled

trying https://static.crates.io/crates/modular-bitfield/0.13.1/download
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100  47558 100  47558   0      0  1.15M      0                              0