{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"[std::backtrace::Backtrace][std::io::Stdout][std::io::Stderr][std::io::Error][std::fs::File]"}]}
    [std::backtrace::Backtrace][std::io::Stdout][std::io::Stderr][std::io::Error][std::fs::File]
already_send!(
        [rustc_arena::DroplessArena][jobserver_crate::Client][jobserver_crate::HelperThread]