structuredAttrs is enabled

trying https://static.crates.io/crates/ref-cast-impl/1.0.25/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  10167 100  10167   0      0 637.8k      0                              0
100  10167 100  10167   0      0 635.5k      0                              0
100  10167 100  10167   0      0 633.0k      0                              0