these 4 derivations will be built:
  /nix/store/1gx8p68ihl8va5njj3529whvl8i8iydb-iets-0.1.0.drv
  /nix/store/x27byqwijlaz2jr714rila68p1p5gi07-iets-fuzz-diff-0.0.0.drv
  /nix/store/98966fr0qh720xk5bfjcnwh294247pzb-iets-conformance-adapter.drv
  /nix/store/3j0kqlcs90dwyrgmqd0k0k0pzfr8h40l-nix-conformance-iets.drv