Data Structures in Rust

What are some tips and tricks and best practices with rust?

Also, I'm used to clearly defined classes and implementation files with C++. Are there any tips and tricks on that with Rust? I haven't found any decent commentary/ documentation on figuring this out correctly with Rust. Yes, I know Rust is not an oop language, but I'm having issues creating clear separation of files so they don't become a scrolling dungeon.