these 4 derivations will be built:
  /nix/store/m2qya2zzlbggxjz1chgsapgs7irmrrlm-iets-fuzz-diff-0.0.0.drv
  /nix/store/zv72935xspcwyw02pxsk53hhzjzmzj6b-iets-0.1.0.drv
  /nix/store/03rqax9ssmr1myhlhq19h458rfj76fd8-iets-conformance-adapter.drv
  /nix/store/xi36vnmcw7pbj9rcki8crhkniqfn73gq-nix-conformance-iets.drv