these 4 derivations will be built:
  /nix/store/f4wzg5dx2yvdaj9jasvlrs7r3kviypb0-iets-0.1.0.drv
  /nix/store/pb1w1rjb1ijjy9z8ilwcsrhj9vdh79yx-iets-fuzz-diff-0.0.0.drv
  /nix/store/9si5mzc34m90xc736b653s0isgbx7x69-iets-conformance-adapter.drv
  /nix/store/cln487288166n71ax7gqq42spkyxf7jb-nix-conformance-iets.drv