{"ast_node_type":"variable","tokens":[{"end":59,"kind":"keyword","start":0,"text":"let"}]}
    let size = buffer.len().try_into().unwrap_or_default();
fn backtrace_stderr(buffer: &[*mut libc::c_void]) {
    unsafe { backtrace_symbols_fd(buffer.as_ptr(), size, libc::STDERR_FILENO) };