these 2 derivations will be built:
  /nix/store/j0s6yvrrk1xz1nyxlqrq5pjjg16i1i4c-gitclaw-2.2.0.drv
  /nix/store/1wzf2wxsip2vra11g3swzg0x0rsd473f-check-gitclaw.drv