these 4 derivations will be built:
  /nix/store/7hlcbp41qplw5lyb3vlqfkalfjn2w1sa-iets-fuzz-diff-0.0.0.drv
  /nix/store/f26v7m49lp1rqg1ch97c11kp5iglashf-iets-0.1.0.drv
  /nix/store/l2prghwgrh59dnp2ia4dyb08anj7c2b8-iets-conformance-adapter.drv
  /nix/store/x3xcay4aww5aqqqn29df8s4f3cmpf9j2-nix-conformance-iets.drv