structuredAttrs is enabled

trying https://static.crates.io/crates/rkyv_derive/0.8.15/download
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed

  0      0   0      0   0      0      0      0           00:01              0
100  22651 100  22651   0      0  19982      0   00:01   00:01              0
100  22651 100  22651   0      0  19981      0   00:01   00:01              0
100  22651 100  22651   0      0  19980      0   00:01   00:01              0