these 2 derivations will be built:
  /nix/store/jj7dkys1nng29dccbw4lijqvz1vjb7dr-nix-grpc-store-0.1.0-beta.1.drv
  /nix/store/j6nbqzxxb6r35v21i7fkw97hvks5kpww-nix-grpc-store-exit-stress.drv