structuredAttrs is enabled

trying https://github.com/ccusage/ccusage/archive/refs/tags/v20.0.26.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  6.59M   0  6.59M   0      0 10.83M      0                              0
100  6.59M   0  6.59M   0      0 10.83M      0                              0
100  6.59M   0  6.59M   0      0 10.83M      0                              0
unpacking source archive /nix/var/nix/builds/nix-36381-1478485940/download.tar.gz