these 3 derivations will be built:
  /nix/store/8d3xffragfmbsangjzb97ayrjh5d7ah3-iets-fuzzers-0.0.0.drv
  /nix/store/ra3cqrbw97yapmsv41mjb93c9bxh8yw1-iets-fuzz-diff-0.0.0.drv
  /nix/store/xjx9dydb55xkmm7mml3njd35ckm6619b-iets-fuzz-drv-check.drv