CI: exit when fail any step. (#10579)

paddle/scripts/paddle_build.sh

@@ -473,6 +473,7 @@ EOF
 }
 
 function main() {
+    set -e
     local CMD=$1
     init
     case $CMD in

paddle/scripts/paddle_docker_build.sh

@@ -59,7 +59,7 @@ EOL
     if [ ! -d "${HOME}/.ccache" ]; then
         mkdir ${HOME}/.ccache
     fi
-    set -x
+    set -ex
     ${DOCKER_CMD} run -it \
         --name $CONTAINER_ID \
         ${DOCKER_ENV} \