these 2 derivations will be built:
  /nix/store/275v2n744ww2dvz73rlni362f1d9rg7r-nix-grpc-store-0.1.0.drv
  /nix/store/hwcq6qnj3s0bcks17admxzixxi8nf472-nix-grpc-store-exit-stress.drv