When running in cluster mode, passing references does not work, e.g.,:

auto r3 = Ray::Task(Return1).Remote();
auto r4 = Ray::Task(Plus1, r3).Remote(); // passing r3 as reference argument

CC @SongGuyang

• I have verified my script runs in a clean environment and reproduces the issue.
• I have verified the issue also occurs with the [latest wheels](https://docs.ray.io/en

Vcpkg is a C++ dependency management system that makes installation and consumption as a dependency very easy. We should support this for VW to allow consuming the lib as easy as possible.

Instructions for creating a new package can be found here: https://github.com/microsoft/vcpkg/blob/master/docs/examples/packaging-github-repos.md

How to use Watcher / WatcherClient over tcp/ip network?

Watcher seems to ZMQ server, and WatcherClient is ZMQ Client, but there is no API/Interface to config server IP address.
Do I need to implement a class that inherits from WatcherClient?