structuredAttrs is enabled

trying https://github.com/ctxrs/ctx/archive/refs/tags/v2.2.8.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  4.25M   0  4.25M   0      0  3.38M      0           00:01          4.25M
100 10.63M   0 10.63M   0      0  5.19M      0           00:02          4.25M
100 10.63M   0 10.63M   0      0  5.18M      0           00:02          4.25M
100 10.63M   0 10.63M   0      0  5.18M      0           00:02          4.25M
unpacking source archive /nix/var/nix/builds/nix-84113-1500980146/download.tar.gz