these 4 derivations will be built:
  /nix/store/88yiw22wiiaxna2fvjx80ry5k5gdcqy6-iets-0.1.0.drv
  /nix/store/ixzijvyb5zdym4n2wl9z96c25c3yz5bv-iets-fuzz-diff-0.0.0.drv
  /nix/store/8hksqj6w5iaksl8wcbavs7cb1l5r58b9-iets-conformance-adapter.drv
  /nix/store/90phwpcz0vnldv90g1kkl28nrjd6337q-nix-conformance-iets.drv