{"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"for"}]}
    for (i, capture) in captures.iter().enumerate() {
    let mut upvar_map: FxHashMap<LocalId, Vec<(&CapturedItem, usize)>> = FxHashMap::default();
        let local = ctx.binding_local(capture.place.local)?;