these 2 derivations will be built:
  /nix/store/lkzzh8giq598iilf6ffvzg7ik8wsp4bc-nix-grpc-store-0.1.0.drv
  /nix/store/yxris05mkm35a6h8pz8x6n52gsra2465-nix-grpc-store-exit-stress.drv