these 4 derivations will be built:
  /nix/store/ld5df6lj0yi9r65xxdcd9kddm6d0hnhi-iets-fuzz-diff-0.0.0.drv
  /nix/store/pzkk408k48dpikjs9nz2gm1f1yg57xa8-iets-0.1.0.drv
  /nix/store/p2370vq61qs0zyl072mi928kr0pbngsj-iets-conformance-adapter.drv
  /nix/store/mps4lqv62sx6fqimyz6hfxx6w4ikyn5v-nix-conformance-iets.drv