these 4 derivations will be built:
  /nix/store/6f3sxpl6khqbhpblv4llhbl8cg981hgp-iets-0.1.0.drv
  /nix/store/szkwgk8v1nmmjmip3iz14sbqybm00rlg-iets-fuzz-diff-0.0.0.drv
  /nix/store/aj1a2gfv814fpnh061mgwj8ygwm2hdzl-iets-conformance-adapter.drv
  /nix/store/1zxl0iagagsn6blqylqmnpxkcvvdppwb-nix-conformance-iets.drv