these 4 derivations will be built:
  /nix/store/dmpfvk31awlsz7l0556ip78qgwdpcwj4-iets-0.2.0.drv
  /nix/store/hpzp1wrnw0bgl5hymx10i5x5w6128blf-iets-fuzz-diff-0.0.0.drv
  /nix/store/w3fnamfqnyb34bdalgm74m5i6n2yv9zc-iets-conformance-adapter.drv
  /nix/store/5v401901ib2izd1rdl6d45wn3jmplxc5-nix-conformance-iets.drv