message: Add dyn to the screenshot-asynchronous test
diff: @@ -42,7 +42,7 @@ mod screenshot {
  }
  impl AsyncScreenshotTask {
  - fn new(facade: &glium::backend::Facade, target_frame: u64) -> Self {
  + fn new(facade: &dyn glium::backend::Facade, target_frame: u64) -> Self {
  // Get information about current framebuffer
  let dimensions = facade.get_context().get_framebuffer_dimensions();
  let rect = glium::Rect {
  @@ -118,7 +118,7 @@ mod screenshot {
  ScreenshotIterator(self)
  }
  - pub fn take_screenshot(&mut self, facade: &glium::backend::Facade) {
  + pub fn take_screenshot(&mut self, facade: &dyn glium::backend::Facade) {
  self.screenshot_tasks
  .push_back(AsyncScreenshotTask::new(facade, self.frame + self.screenshot_delay));
  }
  