these 3 derivations will be built:
  /nix/store/rkm3dllrwgdcdcamjysys918311nqli3-nix-fast-build-with-grpc-store-2.0.4.drv
  /nix/store/l14q51yqyl9ihx6jxgn0b27r0a86i5ga-nix-grpc-store-client.drv
  /nix/store/i05kw2g8z5jg7vxky1xn0sbf7vkms4g4-nix-grpc-store-client-check.drv