structuredAttrs is enabled

trying https://github.com/dense-analysis/ale/archive/d0ea94323207abcdee717d76bb57b38d46055664.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
100 473.1k   0 473.1k   0      0  1.14M      0                              0
unpacking source archive /nix/var/nix/builds/nix-25564-710126607/download.tar.gz