these 2 derivations will be built:
  /nix/store/rbrf9mw2ll02s08837ynam6vd377c1n0-nix-grpc-store-0.2.3.drv
  /nix/store/a6lyjwppx29n53giylil7cv41c7alnr5-nix-grpc-store-exit-stress.drv