structuredAttrs is enabled

trying https://download.calibre-ebook.com/9.12.0/calibre-9.12.0.dmg
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100 327.9M 100 327.9M   0      0 13.87M      0   00:23   00:23         16.72M