these 2 derivations will be built:
  /nix/store/baky1ag95n30v2ffs67wi4dp8hf7v24c-nix-grpc-store-0.1.0.drv
  /nix/store/kglskf0nksca6d8sgldlq1v8z52d328z-nix-grpc-store-exit-stress.drv