This package supports current rust at the time of writing; it makes no attempt at backwards compatibility. This is intended to be a feature - if keywords no longer highlight, it means that the keyword has changed or will soon
Install the Package Control package if you haven't got it yet. Package Control is the best way to install packages for Sublime Text. See http://wbond.net/sublime_packages/package_control/installation for instructions.
Open the palette (control+shift+P or command+shift+P) in Sublime Text
and select Package Control: Install Package and then select Rust from
the list. That's it.
The files are written in the JSON format supported by the Sublime Text package AAAPackageDev, because the format is much easier to read / edit than the xml based plist format.
So install that package and then work on the .JSON-* files. There is a build system that comes with that package, so if everything is set up right, you should just be able to trigger the build (F7) and get the corresponding .tmLanguage / .tmPreferences files. It will also display errors if you have not formatted the file correctly.
One impact of using this indirect format is that you usually have to double escape anything in the match patterns, ie, "\(" has to be "\\(" as otherwise it will try to interpret '\(' as a JSON escape code (which doesn't exist).
Created 2012 by Daniel Patterson, as a near complete from scratch rewrite of a package by Felix Martini.
Derived primarily from the Vim syntax file, maintained by Patrick Walton and Ben Blum
With a little help from the (now very outdated) TextMate rust mode written by Tom Ellis.
This package is licensed under the MIT License.