these 4 derivations will be built:
  /nix/store/fxlmff6xcazxibk2nplpp1qq5m9n21iq-iets-fuzz-diff-0.0.0.drv
  /nix/store/k66gnqg70z80wgbkf8q3hmmghq38c868-iets-0.1.0.drv
  /nix/store/bn5wsn5pcplknskhm537gid4rkis0n4k-iets-conformance-adapter.drv
  /nix/store/3kkq25qd8m4s42zpp3fzpd6wazm0ddsh-nix-conformance-iets.drv