Fix inference CI bug (#26080)

* Fix inference bug

* fix inference lib

paddle/scripts/paddle_build.sh

@@ -1267,9 +1267,13 @@ EOF
     ./run.sh ${PADDLE_ROOT} ${WITH_MKL:-ON} ${WITH_GPU:-OFF} ${INFERENCE_DEMO_INSTALL_DIR} \
              ${TENSORRT_INCLUDE_DIR:-/usr/local/TensorRT/include} \
              ${TENSORRT_LIB_DIR:-/usr/local/TensorRT/lib}
+    EXIT_CODE=$?
     fluid_endTime_s=`date +%s`
     echo "test_fluid_lib Total Time: $[ $fluid_endTime_s - $fluid_startTime_s ]s"          
     ./clean.sh
+    if [[ "$EXIT_CODE" != "0" ]]; then
+        exit 8;
+    fi
 }
 
 function test_fluid_lib_train() {
@@ -1281,9 +1285,13 @@ EOF
     fluid_train_startTime_s=`date +%s`
     cd ${PADDLE_ROOT}/paddle/fluid/train/demo
     ./run.sh ${PADDLE_ROOT} ${WITH_MKL:-ON}
+    EXIT_CODE=$?
     fluid_train_endTime_s=`date +%s`
     echo "test_fluid_lib_train Total Time: $[ $fluid_train_endTime_s - $fluid_train_startTime_s ]s"
     ./clean.sh
+    if [[ "$EXIT_CODE" != "0" ]]; then
+        exit 8;
+    fi
 }
 
 function build_document_preview() {
@@ -1387,7 +1395,7 @@ function main() {
       test_inference)
         gen_fluid_lib ${parallel_number}
         test_fluid_lib
-        test_fluid_lib_train
+        #test_fluid_lib_train
         ;;
       test_train)
         gen_fluid_lib ${parallel_number}