these 4 derivations will be built:
  /nix/store/d45cn368wgkwb1ap7wgn1dsgz4y4cyw7-iets-0.1.0.drv
  /nix/store/lwp371j3nzbzd31h6f87q923fxxjczxl-iets-fuzz-diff-0.0.0.drv
  /nix/store/lrjvkvqqd1f5r1j3m5ad8f807msmsj19-iets-conformance-adapter.drv
  /nix/store/3zbk0mwaa1wz0hab8h4myj9pnfbxqfiy-nix-conformance-iets.drv