these 4 derivations will be built:
  /nix/store/gdqy7parfi6jbd8d83069gdq74gsb1lh-iets-0.2.0.drv
  /nix/store/j41s5av03kdp93l1w74sq1k1gis951k7-iets-fuzz-diff-0.0.0.drv
  /nix/store/p7dqaga5i6vbjfgkagnmdnhsyfijqbwq-iets-conformance-adapter.drv
  /nix/store/y1ih79kd4hy8df7pj3as9lccp3rx98y6-nix-conformance-iets.drv