structuredAttrs is enabled

trying https://static.crates.io/crates/ctor-proc-macro/0.0.7/download
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100   6462 100   6462   0      0 411.9k      0                              0