Add building Tor with Rust support to Jenkins
In order to better understand if we've broken something when Rust support is enabled, we should start additionally building Tor on our Jenkins setup with Rust. See https://trac.torproject.org/projects/tor/wiki/RustInTor for the different ways to do this (one pulls the dependencies down and the other is given a local directory).
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information