these 2 derivations will be built:
  /nix/store/gmz4aybq6yg5cfqfzgjvxpq3ljbb1kvd-nix-grpc-store-0.1.0.drv
  /nix/store/g2r5rzcm79d5kr8lrk1vp2kw9nzvkj19-nix-grpc-store-exit-stress.drv