{"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"#![cfg_attr(feature"}]}
#![cfg_attr(feature = "in-rust-tree", feature(rustc_private))]
#![cfg_attr(not(feature = "sysroot-abi"), allow(unused_crate_dependencies))]
#![feature(proc_macro_internals, proc_macro_diagnostic, proc_macro_span)]