message: Docker image will use HEAD commit when building
diff: FROM simplestakingcom/tezos-opam-builder:debian10
  # Checkout and compile tezedge source code
  ARG tezedge_git="https://github.com/simplestaking/tezedge.git"
  -ARG tezedge_commit_hash="11b3b5ed26efbecd0a62635c009338461aad3f56"
  ARG rust_toolchain="nightly-2019-10-14"
  RUN curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain ${rust_toolchain} -y
  ENV PATH=/home/appuser/.cargo/bin:$PATH
  @@ -12,7 +11,7 @@ ENV OCAML_BUILD_CHAIN=remote
  RUN cd /home/appuser && \
  git clone ${tezedge_git} && \
  cd tezedge && \
  - git checkout ${tezedge_commit_hash} && \
  + git checkout master && \
  cargo build
  # Build stage 2
  