structuredAttrs is enabled

trying https://github.com/asheshgoplani/agent-deck/archive/refs/tags/v1.15.0.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
 15 142.2M  15 22.45M   0      0 18.83M      0   00:07   00:01   00:06 22.46M
 37 142.2M  37 53.26M   0      0 23.76M      0   00:05   00:02   00:03 26.00M
 61 142.2M  61 88.15M   0      0 27.19M      0   00:05   00:03   00:02 28.91M
 86 142.2M  86 122.4M   0      0 28.62M      0   00:04   00:04         29.97M
100 142.2M 100 142.2M   0      0 29.50M      0   00:04   00:04         29.97M
100 142.2M 100 142.2M   0      0 29.50M      0   00:04   00:04         29.97M
100 142.2M 100 142.2M   0      0 29.50M      0   00:04   00:04         29.97M
unpacking source archive /nix/var/nix/builds/nix-19448-3798624473/download.tar.gz