these 2 derivations will be built:
  /nix/store/iv3109knsf42r0fig8w95arz09766gha-iets-fuzzers-0.0.0.drv
  /nix/store/gfhnbvp4z3cgb24anav8f6nw1bdgswmf-iets-fuzz-drv-check.drv