these 2 derivations will be built:
  /nix/store/fwhfnlnxjx8f5l53aa0q4hzbgvy31v7c-nix-grpc-store-0.1.0.drv
  /nix/store/550mln39fhzbhbyb6yzyw2j7nc88c2xr-nix-grpc-store-exit-stress.drv