anchor.diff:  RUN git --version
   RUN curl --version
   RUN wget --version
  -RUN cabal --version
   
   # Add user "nvm" as non-root user
   RUN useradd -ms /bin/bash nvm
  
positive.code:         realpath              \
          zsh                   \
          ksh                   \
          ghc                   \
          gcc-4.8               \
          g++-4.8               \
          cabal-install         \
          build-essential       \
          bash-completion       && \
      apt-get clean
  
  # Set locale
  RUN locale-gen en_US.UTF-8
  
negative.code: 
  # Switch to user "nvm" from now
  USER nvm
  
  # nvm
  COPY . /home/nvm/.nvm/
  