message: Add lifetime to push_next
diff: @@ -1595,7 +1595,7 @@ pub fn derive_setters(
  let next_function = if has_next && next_extends.is_none() {
  quote! {
  /// Prepend
  - pub fn push_next<T: #extends_name>(mut self, next: &mut T) -> #name_builder<'a> {
  + pub fn push_next<T: #extends_name>(mut self, next: &'a mut T) -> #name_builder<'a> {
  unsafe{
  let next_ptr = next.as_ptr_mut();
  (*next_ptr).p_next = self.inner.p_next as _;
  