{"ast_node_type":"variable","tokens":[{"end":44,"kind":"keyword","start":0,"text":"let"}]}
                    let alloc_actual_mutbl =
                        global_alloc.size_and_align(*self.ecx.tcx, self.ecx.typing_env);
                        global_alloc.mutability(*self.ecx.tcx, self.ecx.typing_env);