anchor.diff:  COPY ./scripts/setup_cache.sh .
   ARG RUSTC_WRAPPER
   ENV SCCACHE_REDIS=redis://localhost
  -RUN . ./setup_cache.sh 
  +RUN . ./setup_cache.sh
   # Cache the built dependencies
   COPY gluon_master/Cargo.toml gluon_master/
   COPY gluon_crates_io/Cargo.toml gluon_crates_io/
  
positive.code:     cargo build ${RELEASE} --tests --bins && \
      cargo install --path . --root target/try_gluon $([ -n "${RELEASE:-}" ] && echo ${RELEASE} || echo --debug)
  
  FROM rust:1.31.1-slim-stretch
  
  WORKDIR /root/
  
  
negative.code: FROM dependencies as builder
  
  COPY ./scripts/build_docs.sh ./scripts/
  RUN ./scripts/build_docs.sh
  
  COPY . .
  
  