these 4 derivations will be built:
  /nix/store/bkhcv1ss28yx3fcn8dafvqfgsmrb8wa8-iets-fuzz-diff-0.0.0.drv
  /nix/store/l71h95lnka6i4hi4x41qf0sy4n500720-iets-0.1.0.drv
  /nix/store/7r1ka0l5y35ah5z02ii3dl7npmxmhf6r-iets-conformance-adapter.drv
  /nix/store/24c7fnqkawswwmf93sw9gyfipzwzy0if-nix-conformance-iets.drv