structuredAttrs is enabled

trying https://github.com/nix-community/nix-index-database/releases/download/2026-09-13-074012/index-aarch64-darwin
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed

  0      0   0      0   0      0      0      0                              0
  0      0   0      0   0      0      0      0                              0
  0      0   0      0   0      0      0      0                              0

  0      0   0      0   0      0      0      0                              0
 65 63.52M  65 41.49M   0      0 32.70M      0   00:01   00:01         41.49M
100 63.52M 100 63.52M   0      0 31.96M      0   00:01   00:01         41.49M
100 63.52M 100 63.52M   0      0 31.96M      0   00:01   00:01         41.49M
100 63.52M 100 63.52M   0      0 31.96M      0   00:01   00:01         41.49M