structuredAttrs is enabled

trying https://static.crates.io/crates/num-conv/num-conv-0.2.0.crate
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100   7034 100   7034   0      0 227.8k      0                              0