these 4 derivations will be built:
  /nix/store/px5aj0b33yaly53cjxgf0v4j62z65afg-iets-0.1.0.drv
  /nix/store/wkcnwmbjzxhqv42cwvydw6bpvz8kvi86-iets-fuzz-diff-0.0.0.drv
  /nix/store/ixhvkybcdnzyjksin8x40qi5q4h966fk-iets-conformance-adapter.drv
  /nix/store/w8hkbnsy80bwxx538jwf98wxncgw67jh-nix-conformance-iets.drv