Merge pull request #63 from automata-network/fix/dockerfile

Fix dockerfile

Author: RyuH1

Dockerfile

@@ -4,7 +4,6 @@ LABEL maintainer "Automata Team"
 
 ARG PROFILE=release
 ARG TOOLCHAIN=nightly-2021-06-16
-ARG FEATURES
 
 RUN apt-get update && \
 	apt-get install -y --no-install-recommends cmake clang curl
@@ -29,11 +28,13 @@ WORKDIR /automata
 
 COPY . /automata
 
+ARG FEATURES
+
 RUN --mount=type=cache,target=/root/.cache/sccache \
 	--mount=type=cache,target=/usr/local/cargo/registry/index \
 	--mount=type=cache,target=/usr/local/cargo/registry/cache \
 	--mount=type=cache,target=/usr/local/cargo/git/db \
-	cargo build --$PROFILE --bin automata --features ${FEATURES} && \
+	cargo build --$PROFILE --bin automata --features $FEATURES && \
 	cp /automata/target/${PROFILE}/automata /usr/local/bin/automata
 
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