these 4 derivations will be built:
  /nix/store/p621yfxiqq8rk0l43rgbsvwachg44xhh-source.drv
  /nix/store/4hbiazmd5lgsg8v4wgar1m3wf8qprpf2-gitnexus-1.6.12-npm-deps.drv
  /nix/store/5szwfvz64i1r9493i2r438rd1nwwbj77-gitnexus-1.6.12.drv
  /nix/store/188cr0bzz31zrbx92k4f5fsfvwy3j770-check-gitnexus.drv