A 20 page document on how to use basic variables, function calls and methods. Except for the threading paragraph, which is hard in any language, this is all complexity and refactoring pain that Rust hoists onto every programmer every day, for relatively modest benefits, somewhat improved performance and memory usage vs the garbage collected/ref-counted version of the same code.
Essentially, you wouldn't and shouldn't make that tradeoff for anything other than system programming.
Essentially, you wouldn't and shouldn't make that tradeoff for anything other than system programming.