diff --git a/check_container_upgrade b/check_container_upgrade
index 4d4d4bc..8c94d5b 100755
--- a/check_container_upgrade
+++ b/check_container_upgrade
@@ -319,12 +319,14 @@ if [[ $DEPLOY_CRON -eq 1 ]]; then
     for container in "${to_deploy[@]}"; do
         message "  $container: deploying..."
         log="$REBUILD_DATA_DIR/$container.log"
-        if $COMPOSE_BIN -f "$DOCKERCOMPOSE_FILE" up -d --no-deps "$container" > "$log" 2>&1; then
-            message "  $container: done"
+        start_time=$(current_time)
+        if $COMPOSE_BIN -f "$DOCKERCOMPOSE_FILE" up -d --no-deps "$container" >> "$log" 2>&1; then
+            message "  $container: done (in $(format_duration "$(( $(current_time)-start_time ))"))"
             update_rebuild_status -d "$container"
             rm -f "$log"
         else
-            error "  $container: fail to deploy new container image"
+            error "  $container: fail to deploy new container image (in" \
+                "$(format_duration "$(( $(current_time)-start_time ))"), see log: $log)"
             update_rebuild_status "$container" "error=fail to deploy new container image"
             error=1
         fi