these 2 derivations will be built:
  /nix/store/r46iwfxigvkadkzscn0adh67m4sm7dd8-nix-grpc-store-0.2.3.drv
  /nix/store/2sw9hcp4g2fnghpf00mwp9isxjjdsb4w-nix-grpc-store-exit-stress.drv