these 4 derivations will be built:
  /nix/store/m2b97747b7rcjfxz19pil20yjzg9bnnz-iets-0.1.0.drv
  /nix/store/skr1fb9f9fghm6jr6n7q0ayqz4lr0w6q-iets-fuzz-diff-0.0.0.drv
  /nix/store/viavpa0mimzzc910sj4di9ra5w8ksyiv-iets-conformance-adapter.drv
  /nix/store/r8aly3d3fkcws484czpjkm4hfnphi4v6-nix-conformance-iets.drv