{"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"tcx.dcx().emit_err(errors::MainFunctionGenericParameters"}]}
        tcx.dcx().emit_err(errors::MainFunctionGenericParameters {
        let generics_param_span = main_fn_generics_params_span(tcx, main_def_id);
            span: generics_param_span.unwrap_or(main_span),