structuredAttrs is enabled

trying https://github.com/multica-ai/multica/archive/refs/tags/v0.6.1.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 11.00M   0 11.00M   0      0  8.79M      0           00:01         10.90M
100 18.75M   0 18.75M   0      0  8.23M      0           00:02          9.21M
100 20.18M   0 20.18M   0      0  8.26M      0           00:02          9.21M
100 20.18M   0 20.18M   0      0  8.26M      0           00:02          9.21M
100 20.18M   0 20.18M   0      0  8.26M      0           00:02          9.21M
unpacking source archive /nix/var/nix/builds/nix-38460-2872912103/download.tar.gz