structuredAttrs is enabled

trying https://static.crates.io/crates/syn/2.0.119/download
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100 300.2k 100 300.2k   0      0 13.42M      0                              0