{"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"///"}]}
    /// Allows using `#[start]` on a function indicating that it is the program entrypoint.
    (removed, simd, "1.0.0", Some(27731), Some("removed in favor of `#[repr(simd)]`")),
    (removed, start, "1.86.0", Some(29633), Some("not portable enough and never RFC'd"), 134299),