these 3 derivations will be built:
  /nix/store/g0ixwcfb72idfnny4kpghxmdp37y8w3b-iets-fuzz-diff-0.0.0.drv
  /nix/store/vqm1a53l6hksm4hxj9cm8cdh7vq1rzzp-iets-fuzzers-0.0.0.drv
  /nix/store/8wjjrxyp3rfsci7r0mppjmdfg415ndb4-iets-fuzz-drv-check.drv