{"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"#[instrument(skip(self),"}]}
    #[instrument(skip(self), level = "debug", ret)]
    // This is `pub` because it's used by unstable external borrowck data users, see `consumers.rs`.
    pub fn eval_outlives(&self, sup_region: RegionVid, sub_region: RegionVid) -> bool {