{"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"///"}]}
    /// `rustc_interface::passes::write_dep_info` to make that work.
    /// analysis, codegen and linking passes, place extra code at the top of
    query env_var_os(key: &'tcx OsStr) -> Option<&'tcx OsStr> {