More test fix

src/Compilers/CSharp/Test/Emit/CodeGen/CodeGenCapturing.cs

@@ -422,7 +422,7 @@ private void SerializeMethod(MethodInfo methodInfo, StringBuilder builder, int m
         /// a maximum number of local functions, and a maximum scope depth to decide the
         /// limits of the combinations.
         /// </summary>
-        [NoIOperationValidationFact]
+        [ConditionalFact(typeof(WindowsOnly), typeof(NoIOperationValidation), Reason = "https://github.com/dotnet/roslyn/issues/30212")]
         public void AllCaptureTests()
         {
             var methods = MakeAllMethods().ToList();