From d95e25f3990f6741a4e453f6a8e304a328f743d3 Mon Sep 17 00:00:00 2001
From: Erich Gubler <erichdongubler@gmail.com>
Date: Mon, 12 Aug 2024 11:43:07 +0100
Subject: [PATCH] chore: remove `std::mem::*` imports now unnecessary with Rust
 1.80

`std::mem::{size,align}_of{,_val}` was added to `std::prelude` in Rust
1.80; see
[`rust`#123168](https://github.com/rust-lang/rust/pull/123168/).
---
 examples/src/boids/mod.rs                     | 2 +-
 examples/src/cube/mod.rs                      | 2 +-
 examples/src/hello_compute/mod.rs             | 2 +-
 examples/src/hello_synchronization/mod.rs     | 2 --
 examples/src/hello_workgroups/mod.rs          | 2 --
 examples/src/mipmap/mod.rs                    | 2 +-
 examples/src/msaa_line/mod.rs                 | 2 +-
 examples/src/repeated_compute/mod.rs          | 2 --
 examples/src/shadow/mod.rs                    | 2 +-
 examples/src/skybox/mod.rs                    | 2 +-
 examples/src/stencil_triangles/mod.rs         | 1 -
 examples/src/storage_texture/mod.rs           | 2 --
 examples/src/texture_arrays/mod.rs            | 5 +----
 examples/src/timestamp_queries/mod.rs         | 2 --
 examples/src/uniform_values/mod.rs            | 2 +-
 examples/src/water/mod.rs                     | 2 +-
 naga/src/back/msl/mod.rs                      | 1 -
 player/tests/test.rs                          | 1 -
 tests/tests/compute_pass_ownership.rs         | 2 +-
 tests/tests/occlusion_query/mod.rs            | 2 +-
 tests/tests/render_pass_ownership.rs          | 2 +-
 tests/tests/subgroup_operations/mod.rs        | 2 +-
 tests/tests/vertex_formats/mod.rs             | 2 +-
 tests/tests/vertex_indices/mod.rs             | 2 +-
 wgpu-core/src/command/bundle.rs               | 2 +-
 wgpu-core/src/command/compute.rs              | 2 +-
 wgpu-core/src/command/render.rs               | 2 +-
 wgpu-core/src/id.rs                           | 1 -
 wgpu-core/src/pipeline_cache.rs               | 2 --
 wgpu-core/src/registry.rs                     | 2 +-
 wgpu-hal/examples/halmark/main.rs             | 4 +---
 wgpu-hal/examples/ray-traced-triangle/main.rs | 4 +---
 wgpu-hal/src/dx12/adapter.rs                  | 7 +------
 wgpu-hal/src/dx12/device.rs                   | 3 +--
 wgpu-hal/src/dx12/instance.rs                 | 2 +-
 wgpu-hal/src/gles/command.rs                  | 5 +----
 wgpu-hal/src/gles/queue.rs                    | 1 -
 wgpu-hal/src/gles/wgl.rs                      | 2 +-
 wgpu-hal/src/metal/command.rs                 | 2 +-
 wgpu-hal/src/vulkan/command.rs                | 6 +-----
 wgpu-types/src/lib.rs                         | 1 -
 wgpu/src/macros.rs                            | 2 --
 wgpu/src/util/mod.rs                          | 6 +-----
 43 files changed, 30 insertions(+), 74 deletions(-)

diff --git a/examples/src/boids/mod.rs b/examples/src/boids/mod.rs
index c527be96d9..712712f1bb 100644
--- a/examples/src/boids/mod.rs
+++ b/examples/src/boids/mod.rs
@@ -2,7 +2,7 @@
 // adapted from https://github.com/austinEng/webgpu-samples/blob/master/src/examples/computeBoids.ts
 
 use nanorand::{Rng, WyRand};
-use std::{borrow::Cow, mem::size_of};
+use std::borrow::Cow;
 use wgpu::util::DeviceExt;
 
 // number of boid particles to simulate
diff --git a/examples/src/cube/mod.rs b/examples/src/cube/mod.rs
index 78dc06e061..8a6d9eb58d 100644
--- a/examples/src/cube/mod.rs
+++ b/examples/src/cube/mod.rs
@@ -1,5 +1,5 @@
 use bytemuck::{Pod, Zeroable};
-use std::{borrow::Cow, f32::consts, mem::size_of};
+use std::{borrow::Cow, f32::consts};
 use wgpu::util::DeviceExt;
 
 #[repr(C)]
diff --git a/examples/src/hello_compute/mod.rs b/examples/src/hello_compute/mod.rs
index e53f49fa43..6caca2538e 100644
--- a/examples/src/hello_compute/mod.rs
+++ b/examples/src/hello_compute/mod.rs
@@ -1,4 +1,4 @@
-use std::{borrow::Cow, mem::size_of_val, str::FromStr};
+use std::{borrow::Cow, str::FromStr};
 use wgpu::util::DeviceExt;
 
 // Indicates a u32 overflow in an intermediate Collatz value
diff --git a/examples/src/hello_synchronization/mod.rs b/examples/src/hello_synchronization/mod.rs
index fad5d7a9da..d6f36d0784 100644
--- a/examples/src/hello_synchronization/mod.rs
+++ b/examples/src/hello_synchronization/mod.rs
@@ -1,5 +1,3 @@
-use std::mem::size_of_val;
-
 const ARR_SIZE: usize = 128;
 
 struct ExecuteResults {
diff --git a/examples/src/hello_workgroups/mod.rs b/examples/src/hello_workgroups/mod.rs
index 7a653cf3e8..04a72fb574 100644
--- a/examples/src/hello_workgroups/mod.rs
+++ b/examples/src/hello_workgroups/mod.rs
@@ -7,8 +7,6 @@
 //!
 //! Only parts specific to this example will be commented.
 
-use std::mem::size_of_val;
-
 use wgpu::util::DeviceExt;
 
 async fn run() {
diff --git a/examples/src/mipmap/mod.rs b/examples/src/mipmap/mod.rs
index 179970ad7f..84f21519b3 100644
--- a/examples/src/mipmap/mod.rs
+++ b/examples/src/mipmap/mod.rs
@@ -1,5 +1,5 @@
 use bytemuck::{Pod, Zeroable};
-use std::{borrow::Cow, f32::consts, mem::size_of};
+use std::{borrow::Cow, f32::consts};
 use wgpu::util::DeviceExt;
 
 const TEXTURE_FORMAT: wgpu::TextureFormat = wgpu::TextureFormat::Rgba8UnormSrgb;
diff --git a/examples/src/msaa_line/mod.rs b/examples/src/msaa_line/mod.rs
index 431fe02bab..cce98c3250 100644
--- a/examples/src/msaa_line/mod.rs
+++ b/examples/src/msaa_line/mod.rs
@@ -7,7 +7,7 @@
 //! *   Set the primitive_topology to PrimitiveTopology::LineList.
 //! *   Vertices and Indices describe the two points that make up a line.
 
-use std::{borrow::Cow, iter, mem::size_of};
+use std::{borrow::Cow, iter};
 
 use bytemuck::{Pod, Zeroable};
 use wgpu::util::DeviceExt;
diff --git a/examples/src/repeated_compute/mod.rs b/examples/src/repeated_compute/mod.rs
index 83dcd4099e..bc8748dc31 100644
--- a/examples/src/repeated_compute/mod.rs
+++ b/examples/src/repeated_compute/mod.rs
@@ -5,8 +5,6 @@
 //! hello-compute example does not such as mapping buffers
 //! and why use the async channels.
 
-use std::mem::size_of_val;
-
 const OVERFLOW: u32 = 0xffffffff;
 
 async fn run() {
diff --git a/examples/src/shadow/mod.rs b/examples/src/shadow/mod.rs
index a7edcce7e8..009a270c61 100644
--- a/examples/src/shadow/mod.rs
+++ b/examples/src/shadow/mod.rs
@@ -1,4 +1,4 @@
-use std::{borrow::Cow, f32::consts, iter, mem::size_of, ops::Range, sync::Arc};
+use std::{borrow::Cow, f32::consts, iter, ops::Range, sync::Arc};
 
 use bytemuck::{Pod, Zeroable};
 use wgpu::util::{align_to, DeviceExt};
diff --git a/examples/src/skybox/mod.rs b/examples/src/skybox/mod.rs
index 82e58ef6d5..a5977a0c3c 100644
--- a/examples/src/skybox/mod.rs
+++ b/examples/src/skybox/mod.rs
@@ -1,5 +1,5 @@
 use bytemuck::{Pod, Zeroable};
-use std::{borrow::Cow, f32::consts, mem::size_of};
+use std::{borrow::Cow, f32::consts};
 use wgpu::{util::DeviceExt, AstcBlock, AstcChannel};
 
 const IMAGE_SIZE: u32 = 256;
diff --git a/examples/src/stencil_triangles/mod.rs b/examples/src/stencil_triangles/mod.rs
index bb433af11c..5867a3b907 100644
--- a/examples/src/stencil_triangles/mod.rs
+++ b/examples/src/stencil_triangles/mod.rs
@@ -1,6 +1,5 @@
 use bytemuck::{Pod, Zeroable};
 use std::borrow::Cow;
-use std::mem::size_of;
 use wgpu::util::DeviceExt;
 
 #[repr(C)]
diff --git a/examples/src/storage_texture/mod.rs b/examples/src/storage_texture/mod.rs
index a687584196..763a9ee46f 100644
--- a/examples/src/storage_texture/mod.rs
+++ b/examples/src/storage_texture/mod.rs
@@ -14,8 +14,6 @@
 //! A lot of things aren't explained here via comments. See hello-compute and
 //! repeated-compute for code that is more thoroughly commented.
 
-use std::mem::size_of_val;
-
 #[cfg(not(target_arch = "wasm32"))]
 use crate::utils::output_image_native;
 #[cfg(target_arch = "wasm32")]
diff --git a/examples/src/texture_arrays/mod.rs b/examples/src/texture_arrays/mod.rs
index 8c81950e9a..fae8d42aa1 100644
--- a/examples/src/texture_arrays/mod.rs
+++ b/examples/src/texture_arrays/mod.rs
@@ -1,8 +1,5 @@
 use bytemuck::{Pod, Zeroable};
-use std::{
-    mem::size_of,
-    num::{NonZeroU32, NonZeroU64},
-};
+use std::num::{NonZeroU32, NonZeroU64};
 use wgpu::util::DeviceExt;
 
 #[repr(C)]
diff --git a/examples/src/timestamp_queries/mod.rs b/examples/src/timestamp_queries/mod.rs
index 2921ae4c85..2cf06b84a9 100644
--- a/examples/src/timestamp_queries/mod.rs
+++ b/examples/src/timestamp_queries/mod.rs
@@ -17,8 +17,6 @@
 //! The period, i.e. the unit of time, of the timestamps in wgpu is undetermined and needs to be queried with `wgpu::Queue::get_timestamp_period`
 //! in order to get comparable results.
 
-use std::mem::size_of;
-
 use wgpu::util::DeviceExt;
 
 struct Queries {
diff --git a/examples/src/uniform_values/mod.rs b/examples/src/uniform_values/mod.rs
index 1ef58de09a..58a1da9c57 100644
--- a/examples/src/uniform_values/mod.rs
+++ b/examples/src/uniform_values/mod.rs
@@ -16,7 +16,7 @@
 //! The usage of the uniform buffer within the shader itself is pretty self-explanatory given
 //! some understanding of WGSL.
 
-use std::{mem::size_of, sync::Arc};
+use std::sync::Arc;
 // We won't bring StorageBuffer into scope as that might be too easy to confuse
 // with actual GPU-allocated WGPU storage buffers.
 use encase::ShaderType;
diff --git a/examples/src/water/mod.rs b/examples/src/water/mod.rs
index 505f5707e5..69a9317958 100644
--- a/examples/src/water/mod.rs
+++ b/examples/src/water/mod.rs
@@ -3,7 +3,7 @@ mod point_gen;
 use bytemuck::{Pod, Zeroable};
 use glam::Vec3;
 use nanorand::{Rng, WyRand};
-use std::{borrow::Cow, f32::consts, iter, mem::size_of};
+use std::{borrow::Cow, f32::consts, iter};
 use wgpu::util::DeviceExt;
 
 ///
diff --git a/naga/src/back/msl/mod.rs b/naga/src/back/msl/mod.rs
index 96dd142a50..68ebc90e4e 100644
--- a/naga/src/back/msl/mod.rs
+++ b/naga/src/back/msl/mod.rs
@@ -669,6 +669,5 @@ pub fn write_string(
 
 #[test]
 fn test_error_size() {
-    use std::mem::size_of;
     assert_eq!(size_of::<Error>(), 32);
 }
diff --git a/player/tests/test.rs b/player/tests/test.rs
index ec96f54469..ece623f58c 100644
--- a/player/tests/test.rs
+++ b/player/tests/test.rs
@@ -14,7 +14,6 @@ use player::GlobalPlay;
 use std::{
     fs::{read_to_string, File},
     io::{Read, Seek, SeekFrom},
-    mem::size_of,
     path::{Path, PathBuf},
     slice,
 };
diff --git a/tests/tests/compute_pass_ownership.rs b/tests/tests/compute_pass_ownership.rs
index 6b5bad8cf7..68754f3fbd 100644
--- a/tests/tests/compute_pass_ownership.rs
+++ b/tests/tests/compute_pass_ownership.rs
@@ -1,7 +1,7 @@
 //! Tests that compute passes take ownership of resources that are associated with.
 //! I.e. once a resource is passed in to a compute pass, it can be dropped.
 
-use std::{mem::size_of, num::NonZeroU64};
+use std::num::NonZeroU64;
 
 use wgpu::util::DeviceExt as _;
 use wgpu_test::{gpu_test, valid, GpuTestConfiguration, TestParameters, TestingContext};
diff --git a/tests/tests/occlusion_query/mod.rs b/tests/tests/occlusion_query/mod.rs
index 20c7fff82b..2dffc77d1c 100644
--- a/tests/tests/occlusion_query/mod.rs
+++ b/tests/tests/occlusion_query/mod.rs
@@ -1,4 +1,4 @@
-use std::{borrow::Cow, mem::size_of};
+use std::borrow::Cow;
 use wgpu_test::{gpu_test, FailureCase, GpuTestConfiguration, TestParameters};
 
 #[gpu_test]
diff --git a/tests/tests/render_pass_ownership.rs b/tests/tests/render_pass_ownership.rs
index 5086d38d91..755f25d01e 100644
--- a/tests/tests/render_pass_ownership.rs
+++ b/tests/tests/render_pass_ownership.rs
@@ -9,7 +9,7 @@
 //! * rpass.multi_draw_indirect_count
 //! * rpass.multi_draw_indexed_indirect_count
 //!
-use std::{mem::size_of, num::NonZeroU64};
+use std::num::NonZeroU64;
 
 use wgpu::util::DeviceExt as _;
 use wgpu_test::{gpu_test, valid, GpuTestConfiguration, TestParameters, TestingContext};
diff --git a/tests/tests/subgroup_operations/mod.rs b/tests/tests/subgroup_operations/mod.rs
index ecf8adfd7d..68f2ca73bd 100644
--- a/tests/tests/subgroup_operations/mod.rs
+++ b/tests/tests/subgroup_operations/mod.rs
@@ -1,4 +1,4 @@
-use std::{borrow::Cow, mem::size_of, num::NonZeroU64};
+use std::{borrow::Cow, num::NonZeroU64};
 
 use wgpu_test::{gpu_test, GpuTestConfiguration, TestParameters};
 
diff --git a/tests/tests/vertex_formats/mod.rs b/tests/tests/vertex_formats/mod.rs
index d447ac8f7e..0b6ec2f9ca 100644
--- a/tests/tests/vertex_formats/mod.rs
+++ b/tests/tests/vertex_formats/mod.rs
@@ -1,6 +1,6 @@
 //! Tests that vertex formats pass through to vertex shaders accurately.
 
-use std::{mem::size_of_val, num::NonZeroU64};
+use std::num::NonZeroU64;
 
 use wgpu::util::{BufferInitDescriptor, DeviceExt};
 
diff --git a/tests/tests/vertex_indices/mod.rs b/tests/tests/vertex_indices/mod.rs
index 5c5ce8a202..5428490185 100644
--- a/tests/tests/vertex_indices/mod.rs
+++ b/tests/tests/vertex_indices/mod.rs
@@ -3,7 +3,7 @@
 //! We need tests for these as the backends use various schemes to work around the lack
 //! of support for things like `gl_BaseInstance` in shaders.
 
-use std::{mem::size_of_val, num::NonZeroU64, ops::Range};
+use std::{num::NonZeroU64, ops::Range};
 
 use itertools::Itertools;
 use strum::IntoEnumIterator;
diff --git a/wgpu-core/src/command/bundle.rs b/wgpu-core/src/command/bundle.rs
index 394858f9fd..eb202f0686 100644
--- a/wgpu-core/src/command/bundle.rs
+++ b/wgpu-core/src/command/bundle.rs
@@ -103,7 +103,7 @@ use crate::{
 };
 use arrayvec::ArrayVec;
 
-use std::{borrow::Cow, mem::size_of, num::NonZeroU32, ops::Range, sync::Arc};
+use std::{borrow::Cow, num::NonZeroU32, ops::Range, sync::Arc};
 use thiserror::Error;
 
 use super::{
diff --git a/wgpu-core/src/command/compute.rs b/wgpu-core/src/command/compute.rs
index 5de03917d2..d78cfd24a8 100644
--- a/wgpu-core/src/command/compute.rs
+++ b/wgpu-core/src/command/compute.rs
@@ -29,7 +29,7 @@ use thiserror::Error;
 use wgt::{BufferAddress, DynamicOffset};
 
 use std::sync::Arc;
-use std::{fmt, mem::size_of, str};
+use std::{fmt, str};
 
 use super::{bind::BinderError, memory_init::CommandBufferTextureMemoryActions};
 
diff --git a/wgpu-core/src/command/render.rs b/wgpu-core/src/command/render.rs
index b6680333c2..df3179a3de 100644
--- a/wgpu-core/src/command/render.rs
+++ b/wgpu-core/src/command/render.rs
@@ -46,7 +46,7 @@ use serde::Deserialize;
 use serde::Serialize;
 
 use std::sync::Arc;
-use std::{borrow::Cow, fmt, iter, mem::size_of, num::NonZeroU32, ops::Range, str};
+use std::{borrow::Cow, fmt, iter, num::NonZeroU32, ops::Range, str};
 
 use super::render_command::ArcRenderCommand;
 use super::{
diff --git a/wgpu-core/src/id.rs b/wgpu-core/src/id.rs
index 4e4897c832..5e723ea7d3 100644
--- a/wgpu-core/src/id.rs
+++ b/wgpu-core/src/id.rs
@@ -4,7 +4,6 @@ use std::{
     fmt::{self, Debug},
     hash::Hash,
     marker::PhantomData,
-    mem::size_of,
     num::NonZeroU64,
 };
 use wgt::WasmNotSendSync;
diff --git a/wgpu-core/src/pipeline_cache.rs b/wgpu-core/src/pipeline_cache.rs
index e506d2cd5b..057223fb57 100644
--- a/wgpu-core/src/pipeline_cache.rs
+++ b/wgpu-core/src/pipeline_cache.rs
@@ -1,5 +1,3 @@
-use std::mem::size_of;
-
 use thiserror::Error;
 use wgt::AdapterInfo;
 
diff --git a/wgpu-core/src/registry.rs b/wgpu-core/src/registry.rs
index b3349235e9..aded1a3c72 100644
--- a/wgpu-core/src/registry.rs
+++ b/wgpu-core/src/registry.rs
@@ -1,4 +1,4 @@
-use std::{mem::size_of, sync::Arc};
+use std::sync::Arc;
 
 use crate::{
     id::Id,
diff --git a/wgpu-hal/examples/halmark/main.rs b/wgpu-hal/examples/halmark/main.rs
index 8ab7f1cb47..8f92f8137b 100644
--- a/wgpu-hal/examples/halmark/main.rs
+++ b/wgpu-hal/examples/halmark/main.rs
@@ -14,9 +14,7 @@ use winit::{
 
 use std::{
     borrow::{Borrow, Cow},
-    iter,
-    mem::size_of,
-    ptr,
+    iter, ptr,
     time::Instant,
 };
 
diff --git a/wgpu-hal/examples/ray-traced-triangle/main.rs b/wgpu-hal/examples/ray-traced-triangle/main.rs
index dd91843734..150870f235 100644
--- a/wgpu-hal/examples/ray-traced-triangle/main.rs
+++ b/wgpu-hal/examples/ray-traced-triangle/main.rs
@@ -8,9 +8,7 @@ use raw_window_handle::{HasDisplayHandle, HasWindowHandle};
 use glam::{Affine3A, Mat4, Vec3};
 use std::{
     borrow::{Borrow, Cow},
-    iter,
-    mem::size_of,
-    ptr,
+    iter, ptr,
     time::Instant,
 };
 use winit::window::WindowButtons;
diff --git a/wgpu-hal/src/dx12/adapter.rs b/wgpu-hal/src/dx12/adapter.rs
index 45d69f5584..d464ce91a2 100644
--- a/wgpu-hal/src/dx12/adapter.rs
+++ b/wgpu-hal/src/dx12/adapter.rs
@@ -1,9 +1,4 @@
-use std::{
-    mem::{size_of, size_of_val},
-    ptr,
-    sync::Arc,
-    thread,
-};
+use std::{ptr, sync::Arc, thread};
 
 use parking_lot::Mutex;
 use windows::{
diff --git a/wgpu-hal/src/dx12/device.rs b/wgpu-hal/src/dx12/device.rs
index 43425bb5f1..284b2af500 100644
--- a/wgpu-hal/src/dx12/device.rs
+++ b/wgpu-hal/src/dx12/device.rs
@@ -1,6 +1,5 @@
 use std::{
-    ffi,
-    mem::{self, size_of},
+    ffi, mem,
     num::NonZeroU32,
     ptr,
     sync::Arc,
diff --git a/wgpu-hal/src/dx12/instance.rs b/wgpu-hal/src/dx12/instance.rs
index 31d0511d39..9d25c2f3f6 100644
--- a/wgpu-hal/src/dx12/instance.rs
+++ b/wgpu-hal/src/dx12/instance.rs
@@ -1,4 +1,4 @@
-use std::{mem::size_of_val, sync::Arc};
+use std::sync::Arc;
 
 use parking_lot::RwLock;
 use windows::{
diff --git a/wgpu-hal/src/gles/command.rs b/wgpu-hal/src/gles/command.rs
index 2df3c1a991..7d8ce41375 100644
--- a/wgpu-hal/src/gles/command.rs
+++ b/wgpu-hal/src/gles/command.rs
@@ -1,9 +1,6 @@
 use super::{conv, Command as C};
 use arrayvec::ArrayVec;
-use std::{
-    mem::{self, size_of, size_of_val},
-    ops::Range,
-};
+use std::{mem, ops::Range};
 
 #[derive(Clone, Copy, Debug, Default)]
 struct TextureSlotDesc {
diff --git a/wgpu-hal/src/gles/queue.rs b/wgpu-hal/src/gles/queue.rs
index 39315f72b7..6ea3bd0b87 100644
--- a/wgpu-hal/src/gles/queue.rs
+++ b/wgpu-hal/src/gles/queue.rs
@@ -2,7 +2,6 @@ use super::{conv::is_layered_target, Command as C, PrivateCapabilities};
 use arrayvec::ArrayVec;
 use glow::HasContext;
 use std::{
-    mem::size_of,
     slice,
     sync::{atomic::Ordering, Arc},
 };
diff --git a/wgpu-hal/src/gles/wgl.rs b/wgpu-hal/src/gles/wgl.rs
index 2d6c91aee0..dfb7bf25db 100644
--- a/wgpu-hal/src/gles/wgl.rs
+++ b/wgpu-hal/src/gles/wgl.rs
@@ -1,7 +1,7 @@
 use std::{
     collections::HashSet,
     ffi::{c_void, CStr, CString},
-    mem::{self, size_of, size_of_val, ManuallyDrop},
+    mem::{self, ManuallyDrop},
     os::raw::c_int,
     ptr,
     sync::{
diff --git a/wgpu-hal/src/metal/command.rs b/wgpu-hal/src/metal/command.rs
index 069013570f..98c395b870 100644
--- a/wgpu-hal/src/metal/command.rs
+++ b/wgpu-hal/src/metal/command.rs
@@ -1,6 +1,6 @@
 use super::{conv, AsNative, TimestampQuerySupport};
 use crate::CommandEncoder as _;
-use std::{borrow::Cow, mem::size_of, ops::Range};
+use std::{borrow::Cow, ops::Range};
 
 // has to match `Temp::binding_sizes`
 const WORD_SIZE: usize = 4;
diff --git a/wgpu-hal/src/vulkan/command.rs b/wgpu-hal/src/vulkan/command.rs
index 6b02e35f4e..5759ad53b0 100644
--- a/wgpu-hal/src/vulkan/command.rs
+++ b/wgpu-hal/src/vulkan/command.rs
@@ -3,11 +3,7 @@ use super::conv;
 use arrayvec::ArrayVec;
 use ash::vk;
 
-use std::{
-    mem::{self, size_of},
-    ops::Range,
-    slice,
-};
+use std::{mem, ops::Range, slice};
 
 const ALLOCATION_GRANULARITY: u32 = 16;
 const DST_IMAGE_LAYOUT: vk::ImageLayout = vk::ImageLayout::TRANSFER_DST_OPTIMAL;
diff --git a/wgpu-types/src/lib.rs b/wgpu-types/src/lib.rs
index ebb9da98a9..d5c68d7597 100644
--- a/wgpu-types/src/lib.rs
+++ b/wgpu-types/src/lib.rs
@@ -18,7 +18,6 @@ use serde::Deserialize;
 #[cfg(any(feature = "serde", test))]
 use serde::Serialize;
 use std::hash::{Hash, Hasher};
-use std::mem::size_of;
 use std::path::PathBuf;
 use std::{num::NonZeroU32, ops::Range};
 
diff --git a/wgpu/src/macros.rs b/wgpu/src/macros.rs
index db9548d90c..4acbb30e89 100644
--- a/wgpu/src/macros.rs
+++ b/wgpu/src/macros.rs
@@ -32,8 +32,6 @@ macro_rules! vertex_attr_array {
 
 #[test]
 fn test_vertex_attr_array() {
-    use std::mem::size_of;
-
     let attrs = vertex_attr_array![0 => Float32x2, 3 => Uint16x4];
     // VertexAttribute does not support PartialEq, so we cannot test directly
     assert_eq!(attrs.len(), 2);
diff --git a/wgpu/src/util/mod.rs b/wgpu/src/util/mod.rs
index 11148179b4..339b08dddc 100644
--- a/wgpu/src/util/mod.rs
+++ b/wgpu/src/util/mod.rs
@@ -9,11 +9,7 @@ mod encoder;
 mod init;
 
 use std::sync::Arc;
-use std::{
-    borrow::Cow,
-    mem::{align_of, size_of},
-    ptr::copy_nonoverlapping,
-};
+use std::{borrow::Cow, ptr::copy_nonoverlapping};
 
 pub use belt::StagingBelt;
 pub use device::{BufferInitDescriptor, DeviceExt, TextureDataOrder};