aleli | Alelí Virtual dom prototype implemeted with TDD | Unit Testing library

It turned out that this was not a VIM or ALE issue, it was a cargo issue. ALE used cargo check to check code without doing codegen (it's faster and leaves less artifacts), and while cargo build did not return any errors or warning, cargo check for some reason returned warning from an older version of the project (not just the file). This was fixed with cargo clean, and then running cargo build and cargo check again. Because I ran cargo clean, I no longer have a project that causes this behavior, so I can't really delve deeper to find out what was wrong with the project.