Basically I start hacking on a project, then when finally something is working, I want to split it into a separate "something". Coming from the C++ world, I'd c

Basically I start hacking on a project, then when finally something is working, I want to split it into a separate "something". Coming from the C++ world, I'd create a new cpp/h couple, maybe in its own subdir. I understand that the equivalent in Rust is creating a module. I made a simple example with just two files: (In the meanwhile I realized that my first example was wrong :) https://github.com/lucaotta/rust_modules https://github.com/lucaotta/rust_modules Let's say that after my refactor, I've "moved" the crate import into the module since "logically" it belongs there. In this case the compilation fails if I don't use self::. But previously it was working in main.rs! And I have no idea why...