{"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"debug!(\"OutlivesConstraintSet::push({:?})\","}]}
        debug!("OutlivesConstraintSet::push({:?})", constraint);
    pub(crate) fn push(&mut self, constraint: OutlivesConstraint<'tcx>) {
        if constraint.sup == constraint.sub {