structuredAttrs is enabled

trying https://github.com/asheshgoplani/agent-deck/archive/refs/tags/v1.14.0.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
 20 142.6M  20 28.71M   0      0 22.14M      0   00:06   00:01   00:05 27.66M
 43 142.6M  43 62.41M   0      0 27.13M      0   00:05   00:02   00:03 30.58M
 66 142.6M  66 95.51M   0      0 28.90M      0   00:04   00:03   00:01 31.35M
 90 142.6M  90 129.5M   0      0 30.08M      0   00:04   00:04         32.00M
100 142.6M 100 142.6M   0      0 30.61M      0   00:04   00:04         32.00M
100 142.6M 100 142.6M   0      0 30.61M      0   00:04   00:04         32.00M
100 142.6M 100 142.6M   0      0 30.60M      0   00:04   00:04         32.00M
unpacking source archive /nix/var/nix/builds/nix-53757-3463996618/download.tar.gz