these 3 derivations will be built:
  /nix/store/dir4ms5mgc7rh8k4la6gxvxrfk7vbswm-iets-fuzzers-0.0.0.drv
  /nix/store/kjg8m3fg294r1gs1nxdh1pz6065vghwm-iets-fuzz-diff-0.0.0.drv
  /nix/store/glq6258pbm24pidzkxh6ynkgiin79l5w-iets-fuzz-parse-check.drv