these 2 derivations will be built:
  /nix/store/a81wbn0adqqbp5f99i0akwirqgdxcbc7-nix-grpc-store-0.1.0-beta.3.drv
  /nix/store/axbm7ziz69n521icnr3ic44lc6nvf360-nix-grpc-store-exit-stress.drv