these 3 derivations will be built:
  /nix/store/1h79li2sk8jpmcaaxags2s9vm5iiz5fs-iets-fuzz-diff-0.0.0.drv
  /nix/store/wcixji8sah3q6sgb6aydbf3sqj2y6j2h-iets-fuzzers-0.0.0.drv
  /nix/store/408qdjh7v7x9r2xfyc9xhf78hc476sh3-iets-fuzz-parse-check.drv