{"ast_node_type":"import","tokens":[{"end":75,"kind":"keyword","start":0,"text":"///"}]}
    /// Allows use of unary negate on unsigned integers, e.g., -e for e: u8
     Some("subsumed by `#![feature(allocator_internals)]`")),
    (removed, negate_unsigned, "1.0.0", Some(29645), None),