message: Remove warnings in `wgpu::image`
diff: @@ -251,8 +251,8 @@ impl Pipeline {
  let instance_buffer = device
  .create_buffer_mapped(1, wgpu::BufferUsage::COPY_SRC)
  .fill_from_slice(&[Instance {
  - position: image.position,
  - scale: image.scale,
  + _position: image.position,
  + _scale: image.scale,
  }]);
  encoder.copy_buffer_to_buffer(
  @@ -433,6 +433,6 @@ const QUAD_VERTS: [Vertex; 4] = [
  #[derive(Clone, Copy)]
  struct Instance {
  - position: [f32; 2],
  - scale: [f32; 2],
  + _position: [f32; 2],
  + _scale: [f32; 2],
  }
  