structuredAttrs is enabled

trying https://github.com/raine/aven/archive/refs/tags/v0.1.41.tar.gz
  % 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
100  4.89M   0  4.89M   0      0  3.61M      0           00:01          4.52M
100  6.00M   0  6.00M   0      0  4.39M      0           00:01          4.52M
100  6.00M   0  6.00M   0      0  4.39M      0           00:01          4.52M
100  6.00M   0  6.00M   0      0  4.39M      0           00:01          4.52M
unpacking source archive /nix/var/nix/builds/nix-78752-2864516379/download.tar.gz