Replace #[allow attributes with expect (#7796)

We do have `clippy::allow_attributes` turned on, but it doesn't seem to
work properly

crates/egui-wgpu/src/capture.rs

@@ -126,7 +126,7 @@ impl CaptureState {
         // It would be more efficient to reuse the Buffer, e.g. via some kind of ring buffer, but
         // for most screenshot use cases this should be fine. When taking many screenshots (e.g. for a video)
         // it might make sense to revisit this and implement a more efficient solution.
-        #[allow(clippy::arc_with_non_send_sync, clippy::allow_attributes)] // For wasm
+        #[allow(clippy::allow_attributes, clippy::arc_with_non_send_sync)] // For wasm
         let buffer = device.create_buffer(&wgpu::BufferDescriptor {
             label: Some("egui_screen_capture_buffer"),
             size: (self.padding.padded_bytes_per_row * self.texture.height()) as u64,
@@ -186,7 +186,7 @@ impl CaptureState {
         tx: CaptureSender,
         viewport_id: ViewportId,
     ) {
-        #[allow(clippy::arc_with_non_send_sync, clippy::allow_attributes)] // For wasm
+        #[allow(clippy::allow_attributes, clippy::arc_with_non_send_sync)] // For wasm
         let buffer = Arc::new(buffer);
         let buffer_clone = Arc::clone(&buffer);
         let buffer_slice = buffer_clone.slice(..);

crates/egui-wgpu/src/lib.rs

@@ -16,8 +16,6 @@
 #![doc = document_features::document_features!()]
 //!
 
-#![allow(unsafe_code)]
-
 pub use wgpu;
 
 /// Low-level painting of [`egui`](https://github.com/emilk/egui) on [`wgpu`].
@@ -247,7 +245,7 @@ impl RenderState {
 
         // On wasm, depending on feature flags, wgpu objects may or may not implement sync.
         // It doesn't make sense to switch to Rc for that special usecase, so simply disable the lint.
-        #[allow(clippy::arc_with_non_send_sync, clippy::allow_attributes)] // For wasm
+        #[allow(clippy::allow_attributes, clippy::arc_with_non_send_sync)] // For wasm
         Ok(Self {
             adapter,
             #[cfg(not(target_arch = "wasm32"))]

crates/egui-wgpu/src/setup.rs

@@ -48,7 +48,7 @@ impl WgpuSetup {
     pub async fn new_instance(&self) -> wgpu::Instance {
         match self {
             Self::CreateNew(create_new) => {
-                #[allow(unused_mut, clippy::allow_attributes)]
+                #[allow(clippy::allow_attributes, unused_mut)]
                 let mut backends = create_new.instance_descriptor.backends;
 
                 // Don't try WebGPU if we're not in a secure context.

crates/egui-wgpu/src/winit.rs

@@ -1,6 +1,7 @@
 #![expect(clippy::missing_errors_doc)]
 #![expect(clippy::undocumented_unsafe_blocks)]
 #![expect(clippy::unwrap_used)] // TODO(emilk): avoid unwraps
+#![expect(unsafe_code)]
 
 use crate::{RenderState, SurfaceErrorAction, WgpuConfiguration, renderer};
 use crate::{