Update test

Author: SteveIntensifies

ash/src/vk.rs

@@ -274,20 +274,23 @@ mod tests {
     #[test]
     fn test_ptr_chains() {
         let mut variable_pointers = vk::PhysicalDeviceVariablePointerFeatures::default();
-        let mut corner = vk::PhysicalDeviceCornerSampledImageFeaturesNV::default();
-        let chain = alloc::vec![
-            <*mut _>::cast(&mut variable_pointers),
-            <*mut _>::cast(&mut corner),
-        ];
-        let mut device_create_info = vk::DeviceCreateInfo::default()
-            .push(&mut corner)
-            .push(&mut variable_pointers);
-        let chain2: Vec<*mut vk::BaseOutStructure<'_>> = unsafe {
-            vk::ptr_chain_iter(&mut device_create_info)
-                .skip(1)
-                .collect()
-        };
-        assert_eq!(chain, chain2);
+        {
+            let mut corner = vk::PhysicalDeviceCornerSampledImageFeaturesNV::default();
+            let chain = alloc::vec![
+                <*mut _>::cast(&mut variable_pointers),
+                <*mut _>::cast(&mut corner),
+            ];
+            let mut device_create_info = vk::DeviceCreateInfo::default()
+                .push(&mut corner)
+                .push(&mut variable_pointers);
+            let chain2: Vec<*mut vk::BaseOutStructure<'_>> = unsafe {
+                vk::ptr_chain_iter(&mut device_create_info)
+                    .skip(1)
+                    .collect()
+            };
+            assert_eq!(chain, chain2);
+        }
+        let _ = variable_pointers;
     }
 
     #[test]