these 3 derivations will be built:
  /nix/store/c7pn9rs9p0ilvg50699z3vfv74lgh7mf-iets-fuzzers-0.0.0.drv
  /nix/store/zlsz5mp0gpclvg5j28xc5r3zjzb7ay1a-iets-fuzz-diff-0.0.0.drv
  /nix/store/sp6w7sk5cirk9ar1pgfjnvbnpabw8yhh-iets-fuzz-eval-check.drv