anchor.diff:  RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
   
   VOLUME /workspace
  -#ENTRYPOINT ["/bin/bash", "--login", "-i", "-c"]
  +
   CMD ["bash"]
  
positive.code: ENV PATH="${HOME}/.cabal/bin:/opt/cabal/1.22/bin:/opt/ghc/7.10.2/bin:${PATH}"
  
  WORKDIR /workspace/haskell
  RUN mkdir -p src/main/haskell
  RUN wget https://www.stackage.org/lts/cabal.config
  
  # install stackage
  
negative.code:   rm sbt-$SBT_VERSION.deb && \
    apt-get update 
  RUN sbt update
  
  ###############################
  # Install nvm with node and npm
  ###############################
  