structuredAttrs is enabled

trying https://github.com/backnotprop/plannotator/archive/refs/tags/v0.27.25.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 17.40M   0 17.40M   0      0 11.74M      0           00:01         16.29M
100 47.67M   0 47.67M   0      0 19.20M      0           00:02         23.04M
100 58.84M   0 58.84M   0      0 19.37M      0           00:03         23.04M
100 58.84M   0 58.84M   0      0 19.37M      0           00:03         23.04M
100 58.84M   0 58.84M   0      0 19.37M      0           00:03         23.04M
unpacking source archive /nix/var/nix/builds/nix-14721-724416658/download.tar.gz