{"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"[proj_base"}]}
            [proj_base @ .., ProjectionElem::Deref] => {
        let deref_base = match deref_target_place.projection.as_ref() {
                PlaceRef { local: deref_target_place.local, projection: proj_base }