diff --git a/Jenkinsfile b/Jenkinsfile
index d07738f..61018b8 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,6 +1,7 @@
 def build_rust_and_frontend() {
     sh '''#!/bin/bash
     set -e
+    set -x
     export RUSTUP_HOME=/opt/rust/rustup
     export CARGO_HOME=/opt/rust/cargo
     TARGET=
@@ -32,6 +33,7 @@ def build_rust_and_frontend() {
 def build_server_and_backend() {
     sh '''#!/bin/bash
     set -e
+    set -x
     TARGET=
     case "$arch" in
         amd64)
@@ -57,6 +59,7 @@ def build_server_and_backend() {
 def build_package() {
     sh '''#!/bin/bash
     set -e
+    set -x
     TARGET=
     case "$arch" in
         amd64)
diff --git a/Makefile b/Makefile
index 0c06f9d..6c5f93c 100644
--- a/Makefile
+++ b/Makefile
@@ -73,6 +73,7 @@ antd-% sil%: httpd
 luafcgi:
 ifeq ($(LUAFCGI_IGNORE),)
 	@echo "Building $@"
+	mkdir -p $(BUILD_PREFIX)/bin
 	RUSTUP_HOME=$(RUSTUP_HOME) CARGO_HOME=$(CARGO_HOME) \
 	. $(CARGO_HOME)/env && \
 		rustup default stable && \
@@ -100,11 +101,13 @@ clean:
 
 backend:
 	@echo "Building $@"
+	mkdir -p $(BUILD_PREFIX)/htdocs/os
 	DESTDIR=$(BUILD_PREFIX)/htdocs/os make -C antos-backend
 
 frontend:
 ifeq ($(FRONTEND_IGNORE),)
 	@echo "Building $@"
+	mkdir -p $(BUILD_PREFIX)/htdocs/os
 	BUILDDIR=$(BUILD_PREFIX)/htdocs/os make -C antos-frontend install_dev release
 else
 	@echo "Ignore building $@"