structuredAttrs is enabled

trying https://github.com/kunchenguid/treehouse/archive/refs/tags/v3.1.5.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
100 739.1k   0 739.1k   0      0 650.3k      0           00:01              0
100 739.1k   0 739.1k   0      0 650.3k      0           00:01              0
100 739.1k   0 739.1k   0      0 650.2k      0           00:01              0
unpacking source archive /nix/var/nix/builds/nix-1371461-2564558165/download.tar.gz