diff --git a/examples/hello_triangle_rust/main.rs b/examples/hello_triangle_rust/main.rs
index a00d6b8e11..0a7fa35531 100644
--- a/examples/hello_triangle_rust/main.rs
+++ b/examples/hello_triangle_rust/main.rs
@@ -1,10 +1,10 @@
 extern crate wgpu;
 fn main() {
     let instance = wgpu::Instance::new();
-    let adapter = instance.get_adapter(wgpu::AdapterDescriptor {
+    let adapter = instance.get_adapter(&wgpu::AdapterDescriptor {
         power_preference: wgpu::PowerPreference::LowPower,
     });
-    let device = adapter.create_device(wgpu::DeviceDescriptor {
+    let device = adapter.create_device(&wgpu::DeviceDescriptor {
         extensions: wgpu::Extensions {
             anisotropic_filtering: false,
         },
@@ -15,20 +15,20 @@ fn main() {
     let fs_bytes = include_bytes!("./../data/hello_triangle.frag.spv");
     let fs_module = device.create_shader_module(fs_bytes);
 
-    let bind_group_layout = device.create_bind_group_layout(wgpu::BindGroupLayoutDescriptor {
+    let bind_group_layout = device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
         bindings: &[],
     });
-    let pipeline_layout = device.create_pipeline_layout(wgpu::PipelineLayoutDescriptor {
+    let pipeline_layout = device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
         bind_group_layouts: &[&bind_group_layout],
     });
 
-    let blend_state0 = device.create_blend_state(wgpu::BlendStateDescriptor::REPLACE);
-    let depth_stencil_state = device.create_depth_stencil_state(wgpu::DepthStencilStateDescriptor::IGNORE);
-    let attachment_state = device.create_attachment_state(wgpu::AttachmentStateDescriptor {
+    let blend_state0 = device.create_blend_state(&wgpu::BlendStateDescriptor::REPLACE);
+    let depth_stencil_state = device.create_depth_stencil_state(&wgpu::DepthStencilStateDescriptor::IGNORE);
+    let attachment_state = device.create_attachment_state(&wgpu::AttachmentStateDescriptor {
         formats: &[wgpu::TextureFormat::R8g8b8a8Unorm],
     });
 
-    let _render_pipeline = device.create_render_pipeline(wgpu::RenderPipelineDescriptor {
+    let _render_pipeline = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
         layout: &pipeline_layout,
         stages: &[
             wgpu::PipelineStageDescriptor {
@@ -50,11 +50,11 @@ fn main() {
         attachment_state: &attachment_state,
     });
 
-    let mut cmd_buf = device.create_command_buffer(wgpu::CommandBufferDescriptor {});
+    let mut cmd_buf = device.create_command_buffer(&wgpu::CommandBufferDescriptor {});
 
     {
         let color_view = unimplemented!(); //TODO!
-        let rpass = cmd_buf.begin_render_pass(wgpu::RenderPassDescriptor {
+        let rpass = cmd_buf.begin_render_pass(&wgpu::RenderPassDescriptor {
             color_attachments: &[
                 wgpu::RenderPassColorAttachmentDescriptor {
                     attachment: &color_view,
diff --git a/wgpu-rs/src/lib.rs b/wgpu-rs/src/lib.rs
index 2efffe2172..1a5bf14a20 100644
--- a/wgpu-rs/src/lib.rs
+++ b/wgpu-rs/src/lib.rs
@@ -144,7 +144,7 @@ impl Device {
             },
         };
         ShaderModule {
-            id: wgn::wgpu_device_create_shader_module(self.id, desc),
+            id: wgn::wgpu_device_create_shader_module(self.id, &desc),
         }
     }
 
@@ -162,7 +162,7 @@ impl Device {
 
     pub fn create_bind_group_layout(&self, desc: &BindGroupLayoutDescriptor) -> BindGroupLayout {
         BindGroupLayout {
-            id: wgn::wgpu_device_create_bind_group_layout(self.id, wgn::BindGroupLayoutDescriptor {
+            id: wgn::wgpu_device_create_bind_group_layout(self.id, &wgn::BindGroupLayoutDescriptor {
                 bindings: desc.bindings.as_ptr(),
                 bindings_length: desc.bindings.len(),
             }),
@@ -171,7 +171,7 @@ impl Device {
 
     pub fn create_pipeline_layout(&self, desc: &PipelineLayoutDescriptor) -> PipelineLayout {
         PipelineLayout {
-            id: wgn::wgpu_device_create_pipeline_layout(self.id, wgn::PipelineLayoutDescriptor {
+            id: wgn::wgpu_device_create_pipeline_layout(self.id, &wgn::PipelineLayoutDescriptor {
                 bind_group_layouts: desc.bind_group_layouts.as_ptr() as *const _,
                 bind_group_layouts_length: desc.bind_group_layouts.len(),
             }),
@@ -192,7 +192,7 @@ impl Device {
 
     pub fn create_attachment_state(&self, desc: &AttachmentStateDescriptor) -> AttachmentState {
         AttachmentState {
-            id: wgn::wgpu_device_create_attachment_state(self.id, wgn::AttachmentStateDescriptor {
+            id: wgn::wgpu_device_create_attachment_state(self.id, &wgn::AttachmentStateDescriptor {
                 formats: desc.formats.as_ptr(),
                 formats_length: desc.formats.len(),
             }),
@@ -215,7 +215,7 @@ impl Device {
             .collect::<ArrayVec<[_; 2]>>();
 
         RenderPipeline {
-            id: wgn::wgpu_device_create_render_pipeline(self.id, wgn::RenderPipelineDescriptor {
+            id: wgn::wgpu_device_create_render_pipeline(self.id, &wgn::RenderPipelineDescriptor {
                 layout: desc.layout.id,
                 stages: stages.as_ptr(),
                 stages_length: stages.len(),
@@ -242,6 +242,7 @@ impl CommandBuffer {
             .collect::<ArrayVec<[_; 4]>>();
 
         let depth_stencil = desc.depth_stencil_attachment
+            .as_ref()
             .map(|dsa| RenderPassDepthStencilAttachmentDescriptor {
                 attachment: dsa.attachment.id,
                 depth_load_op: dsa.depth_load_op,