structuredAttrs is enabled

trying https://github.com/raine/aven/archive/refs/tags/v0.1.44.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  6.01M   0  6.01M   0      0  8.02M      0                              0
100  6.01M   0  6.01M   0      0  8.01M      0                              0
100  6.01M   0  6.01M   0      0  8.01M      0                              0
unpacking source archive /nix/var/nix/builds/nix-36456-3094583495/download.tar.gz