syntax_data: {"ast_node_type":"variable","tokens":[{"end":93,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:     let fut_ref_place = Place::from(body.local_decls.push(LocalDecl::new(fut_ref_ty, span)));
context_before:     let fut_ref_ty = Ty::new_mut_ref(tcx, tcx.lifetimes.re_erased, fut_ty);
context_after:     let pin_fut_new_unchecked_fn =