these 2 derivations will be built:
  /nix/store/ymqycfk82w1w4xj8jhkn40hrpw7xkpzb-nix-grpc-store-0.1.0.drv
  /nix/store/0y8hgcg8x4cp7g4v9m5nkwwjbp2b7idf-nix-grpc-store-exit-stress.drv