these 2 derivations will be built:
  /nix/store/vh716yf5j70kjmsc4m65vzsxqyq5chj6-nix-grpc-store-0.1.0.drv
  /nix/store/5kmm9zpnbdh53g05l8s7hz9fq8c21dvf-nix-grpc-store-exit-stress.drv