RS.CLIPPY.FOUR_FORWARD_SLASHES

Comments with 4 forward slashes (`////`) likely intended to be doc comments (`///`)

This checker is a Clippy lint created by The Rust Project Contributors. The documentation shown here is a copy of the original documentation for: four_forward_slashes. Copyright ©2025 The Rust Team. All rights reserved.

What it does

Checks for outer doc comments written with 4 forward slashes (////).

Why is this bad?

This is (probably) a typo, and results in it not being a doc comment; just a regular comment.

Example

//// My amazing data structure
pub struct Foo {
    // ...
}

Use instead:

/// My amazing data structure
pub struct Foo {
    // ...
}