structuredAttrs is enabled

trying https://github.com/ctxrs/ctx/archive/refs/tags/v1.6.2.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  6.26M   0  6.26M   0      0  4.85M      0           00:01          6.19M
100  8.95M   0  8.95M   0      0  5.78M      0           00:01          6.19M
100  8.95M   0  8.95M   0      0  5.78M      0           00:01          6.19M
100  8.95M   0  8.95M   0      0  5.78M      0           00:01          6.19M
unpacking source archive /nix/var/nix/builds/nix-61807-877837439/download.tar.gz