# Error code E0584

A doc comment that is not attached to anything has been encountered.

Erroneous code example:

    #![allow(unused)]
    fn main() {
    trait Island {
        fn lost();

        /// I'm lost!
    }
    }

A little reminder: a doc comment has to be placed before the item it's supposed to document. So if you want to document the `Island` trait, you need to put a doc comment before it, not inside it. Same goes for the `lost` method: the doc comment needs to be before it:

    #![allow(unused)]
    fn main() {
    /// I'm THE island!
    trait Island {
        /// I'm lost!
        fn lost();
    }
    }