changed log warning to error and conformed to maintainer CR

Author: ShaharKatz

src/google/adk/evaluation/local_eval_service.py

@@ -162,6 +162,18 @@ async def evaluate(
     )
 
     async def run_evaluation(inference_result):
+      if (inference_result.status == InferenceStatus.FAILURE or
+        inference_result.inferences is None):
+        logger.warning('Skipping evaluation for eval case `%s` due to inference failure: %s',
+                      inference_result.eval_case_id, inference_result.error_message)
+        return (
+          inference_result, 
+          self._build_not_evaluated_eval_case_result(
+            inference_result=inference_result,
+            eval_case=eval_case,
+            reason='Inference failed',
+          )
+        )
       async with semaphore:
         return await self._evaluate_single_inference_result(
             inference_result=inference_result,
@@ -269,10 +281,11 @@ async def _evaluate_single_inference_result(
       return (inference_result, eval_case_result)
 
     if inference_result.inferences is None:
-      logger.warning(
-          'Inference result for eval case `%s` did not include inferences;'
-          ' marking as not evaluated.',
+      logger.error(
+          'Evaluation attempted on failed inference for eval case `%s`.'
+          ' Error: %s',
           inference_result.eval_case_id,
+          inference_result.error_message
       )
       eval_case_result = await self._build_not_evaluated_eval_case_result(
           inference_result=inference_result,