{"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"self.tcx.def_span(self.body_id),"}]}
                self.tcx.def_span(self.body_id),
                self.tcx.local_def_id_to_hir_id(self.body_id),
                errors::DependencyOnUnitNeverTypeFallback {