message: Take `self` by value in `Layout::children`
diff: @@ -64,7 +64,7 @@ impl<'a> Layout<'a> {
  ///
  /// [`Layout`]: struct.Layout.html
  /// [`Node`]: struct.Node.html
  - pub fn children(&self) -> impl Iterator<Item = Layout<'a>> + '_ {
  + pub fn children(self) -> impl Iterator<Item = Layout<'a>> {
  self.node.children().iter().map(move |node| {
  Layout::with_offset(
  Vector::new(self.position.x, self.position.y),
  