structuredAttrs is enabled

trying https://static.crates.io/crates/proc-macro-crate/proc-macro-crate-3.4.0.crate
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100  12690 100  12690   0      0 416.6k      0                              0