these 2 derivations will be built:
  /nix/store/ph74c2hy45rgcganlkn66clkkppx0q1p-nix-grpc-store-0.1.0.drv
  /nix/store/7x8y4q38l9dv08ii0fj6mljj02i67xkr-nix-grpc-store-exit-stress.drv