these 4 derivations will be built:
  /nix/store/55vcpfz1im7kpswgb3mnn3r9wlzlgh7q-iets-0.1.0.drv
  /nix/store/99rk6nxfl0b9w5adszix2lygg7l94yy1-iets-fuzz-diff-0.0.0.drv
  /nix/store/fk1ms51kcb5zihphpdi65ab6yfm28z29-iets-conformance-adapter.drv
  /nix/store/zm1x1nfn8xijj62g6mprv17jv8gazj8b-nix-conformance-iets.drv