{"ast_node_type":"variable","tokens":[{"end":81,"kind":"keyword","start":0,"text":"let"}]}
    let out_filename = filename_for_metadata(tcx.sess, tcx.output_filenames(()));
pub fn encode_and_write_metadata(tcx: TyCtxt<'_>) -> EncodedMetadata {
    // To avoid races with another rustc process scanning the output directory,