these 2 derivations will be built:
  /nix/store/bmjcahj22cpsjqmf2zmsdwncplffc5m8-nix-grpc-store-0.1.0.drv
  /nix/store/p8bm542af29yhslf6s5pfaxzplpg15mb-nix-grpc-store-exit-stress.drv