{"ast_node_type":"variable","tokens":[{"end":36,"kind":"keyword","start":0,"text":"let"}]}
                let is_rustc_box = {
                // FIXME: Remove this once we drop support for <1.86, https://github.com/rust-lang/rust/commit/ac9cb908ac4301dfc25e7a2edee574320022ae2c
                    let attrs = e.attrs();