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
 32 63.52M  32 20.90M   0      0 17.29M      0   00:03   00:01   00:02 20.91M
 90 63.52M  90 57.74M   0      0 26.15M      0   00:02   00:02         28.89M
100 63.52M 100 63.52M   0      0 27.04M      0   00:02   00:02         28.89M
100 63.52M 100 63.52M   0      0 27.04M      0   00:02   00:02         28.89M
100 63.52M 100 63.52M   0      0 27.04M      0   00:02   00:02         28.89M