these 2 derivations will be built:
  /nix/store/wk5g6vbyj0swr3iwd7n39b74ivgsqjkl-nix-grpc-store-0.1.0-beta.3.drv
  /nix/store/1xzvn5lwh9yqs2iwj19zlrhc55fa13l1-nix-grpc-store-exit-stress.drv