fix dockerfile

Dockerfile

@@ -1,9 +1,9 @@
-
 FROM	rust	as	builder
 ENV	PKG_CONFIG_ALLOW_CROSS	1
 WORKDIR	/usr/src/openlab-rest
 COPY	.	.
 RUN	cargo install --path .
+
 FROM	debian
 COPY	/usr/local/cargo/bin/openlab-rest	/usr/local/bin/openlab-rest
 CMD	["openlab-rest"]