New week, new Rust! What are you folks up to?
The test stand for Step/Dir is largely done. I'll work on finishing it up this week.
The second half of the Ray tracer challenge! 
Since I'm a beginner/intermediate Rustacean though, large part of the job is wrestl... ahem, understanding language functionalities/patterns, more than the project itself 
upgrading trees crate to 0.4.0