these 4 derivations will be built:
  /nix/store/42hhi6vpq1q8ph8rjnbd479nsk6incy5-iets-fuzz-diff-0.0.0.drv
  /nix/store/mln64g0nwk075bpwcvr1vp64phnawd0x-iets-0.1.0.drv
  /nix/store/1fjjz8yh1fgyj7mxv8sjywz7mzlh3svy-iets-conformance-adapter.drv
  /nix/store/rq506bci406ncxmrgmb65gfim816frsj-nix-conformance-iets.drv