these 4 derivations will be built:
  /nix/store/n99sg1arwb9h845nxrb2a9xak98rmgg0-iets-fuzz-diff-0.0.0.drv
  /nix/store/y93b2viy5zklxaxn6vwckvch240k2lb9-iets-0.1.0.drv
  /nix/store/zamvr9mcz9y41j27f4rdl6pq8j5cvc10-iets-conformance-adapter.drv
  /nix/store/qp21n8si37v5rv036bp2qvlyaa460fcv-nix-conformance-iets.drv