Strongly second Rustlings. I found it to be quite fun — felt like playing a puzzle game... the pacing of the course is very well done.
Once you get the fundamentals of Rust down, I recommend writing something multi-threaded. It's not that much harder than writing single threaded Rust and a good test of knowledge; in my case I wrote a tiny web app:
Once you get the fundamentals of Rust down, I recommend writing something multi-threaded. It's not that much harder than writing single threaded Rust and a good test of knowledge; in my case I wrote a tiny web app:
https://github.com/ylukem/pin-go