structuredAttrs is enabled

trying https://github.com/sipyourdrink-ltd/bernstein/archive/refs/tags/v3.18.2.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 10.25M   0 10.25M   0      0  8.31M      0           00:01         10.20M
100 17.94M   0 17.94M   0      0  8.03M      0           00:02          8.95M
100 22.46M   0 22.46M   0      0  8.04M      0           00:02          8.95M
100 22.46M   0 22.46M   0      0  8.04M      0           00:02          8.95M
100 22.46M   0 22.46M   0      0  8.04M      0           00:02          8.95M
unpacking source archive /nix/var/nix/builds/nix-41234-129001618/download.tar.gz