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: FROM rust:1.38.0-slim-stretch as dependencies
  
  WORKDIR /usr/src/try_gluon
  
  
negative.code: FROM dependencies as builder
  
  COPY ./scripts/build_docs.sh ./scripts/
  RUN ./scripts/build_docs.sh
  
  COPY . .
  
  