[abiro]

This is great. I'd recommend the Learn Rust With Entirely Too Many Linked Lists [0] tutorial as the next step. It really helps you grok the borrow checker.

[0]: https://rust-unofficial.github.io/too-many-lists/index.html

[mrtngslr]

Yeah, that is a fun tutorial indeed :-D I forgot to add that one to the list of https://google.github.io/comprehensive-rust/other-resources..... Would you care to open a PR for that?