This is where I think linters can shine as educational tools. Underline either as an error and you’ve taught someone something that’s actually quite tricky to discover on your own.

Similar to all the times I defensively str(something) in Python to find that “oh that has __str__ called on it anyways.”

When I was starting out in rust, replacing my IDE’s `cargo check` invocation with pedantic clippy (which has a lint for this use of `into_iter` [0]) was very useful in learning these parts of the language.

[0]: https://rust-lang.github.io/rust-clippy/master/index.html#ex...