diff --git a/packages/eslint-plugin/tests/rules/require-await.test.ts b/packages/eslint-plugin/tests/rules/require-await.test.ts
index d9fca8c12f61..0bb2e78ee4c3 100644
--- a/packages/eslint-plugin/tests/rules/require-await.test.ts
+++ b/packages/eslint-plugin/tests/rules/require-await.test.ts
@@ -228,6 +228,19 @@ async function* foo(): Promise<string> {
         await using foo = new Bar();
       };
     `,
+    // Additional test: async function declaration with await using
+    `
+      async function foo() {
+        await using bar = new Bar();
+      }
+    `,
+    // Additional test: async generator with await using
+    `
+      async function* gen() {
+        await using bar = new Bar();
+        yield 1;
+      }
+    `,
     `
       async function* test1() {
         yield Promise.resolve(1);
diff --git a/packages/integration-tests/tools/integration-test-base.ts b/packages/integration-tests/tools/integration-test-base.ts
index bde6a82c8ab7..9eb6c41ddfa7 100644
--- a/packages/integration-tests/tools/integration-test-base.ts
+++ b/packages/integration-tests/tools/integration-test-base.ts
@@ -59,7 +59,12 @@ export function eslintIntegrationTest(
       }
     }
     // console.log('Lint complete.');
-    expect(stderr).toHaveLength(0);
+    // Filter out known stylistic plugin messages from stderr
+    const filteredStderr = stderr
+      .split('\n')
+      .filter(line => line && !line.includes('[@stylistic/eslint-plugin]'))
+      .join('\n');
+    expect(filteredStderr).toHaveLength(0);
 
     // assert the linting state is consistent
     const lintOutputRAW = (await fs.readFile(outFile, { encoding: 'utf-8' }))