difftest runner: update wgpu 29 -> 30

Author: Firestar99

tests/difftests/tests/Cargo.lock

@@ -24,7 +24,7 @@ spirv-builder.workspace = true
 difftest-types.workspace = true
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-wgpu = { version = "29.0.1", default-features = false, features = ["std", "parking_lot", "spirv", "wgsl", "vulkan", "vulkan-portability", "metal"] }
+wgpu = { version = "30.0.0", default-features = false, features = ["std", "parking_lot", "spirv", "wgsl", "vulkan", "vulkan-portability", "metal"] }
 ash = { version = "0.38" }
 tempfile = "3.5"
 futures = "0.3.31"

tests/difftests/tests/lib/Cargo.toml

@@ -58,11 +58,9 @@ where
 
     pub fn run(&self) -> anyhow::Result<Vec<Option<Vec<u8>>>> {
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor::new_without_display_handle());
-        let adapter = block_on(instance.request_adapter(&wgpu::RequestAdapterOptions {
-            power_preference: wgpu::PowerPreference::HighPerformance,
-            compatible_surface: None,
-            force_fallback_adapter: false,
-        }))
+        let adapter = block_on(wgpu::util::initialize_adapter_from_env_or_default(
+            &instance, None,
+        ))
         .context("Failed to find a suitable GPU adapter")?;
         let (device, queue) = block_on(adapter.request_device(&wgpu::DeviceDescriptor {
             label: Some("wgpu Device"),
@@ -218,7 +216,7 @@ where
         // copy data from buffers into Vecs
         let results = download_buffers
             .into_iter()
-            .map(|buffer| buffer.map(|buffer| buffer.get_mapped_range(..).to_vec()))
+            .map(|buffer| buffer.map(|buffer| buffer.get_mapped_range(..).unwrap().to_vec()))
             .collect::<Vec<_>>();
         Ok(results)
     }