these 2 derivations will be built:
  /nix/store/k0djaqq5g82fszfhkj79ldsa4q88ybzi-nix-grpc-store-0.2.0.drv
  /nix/store/i02ps0qc3bb3mpgvzh4np158qdlvz6k3-nix-grpc-store-exit-stress.drv