these 2 derivations will be built:
  /nix/store/lz53dqm2v2j7hjfq70lkfd1addpnzwm8-nix-grpc-store-0.2.2.drv
  /nix/store/272x0aiafhm86hbj8zfi2b7grmcs6ky1-nix-grpc-store-exit-stress.drv