these 2 derivations will be built:
  /nix/store/y6k7l9aw7yapz60dqnpssaib5kwhkhzd-nix-grpc-store-0.1.0-beta.2.drv
  /nix/store/zz0x1vw22k7pcq6fii44n2s7dy21qn7p-nix-grpc-store-exit-stress.drv