anchor.diff:  ENV LANGUAGE=en_US.UTF-8
   ENV LANG=en_US.UTF-8
   ENV LC_ALL=en_US.UTF-8
  +
  +RUN apt-get -y update && apt-get -y install \
  +    apt-utils \
  +    locales \
  +    wget \
  +    && apt-get -y autoremove && apt-get clean autoclean && \
  +    rm -rf /var/cache/apt/archives/* && \
  +    rm -rf /var/lib/{apt,dpkg,cache,log}/
   
   RUN locale-gen en_US.UTF-8 && \
       update-locale LANG=en_US.UTF-8 && \
  
positive.code:     echo LC_MESSAGES=POSIX    >> /etc/default/locale && \
      echo LC_ALL=en_US.UTF-8   >> /etc/environment && \
      echo LANGUAGE=en_US.UTF-8 >> /etc/environment
  
  RUN apt-get -y update && apt-get -y install wget apt-utils
  
  # Erlang and elixir repositories
  RUN wget https://packages.erlang-solutions.com/erlang-solutions_1.0_all.deb && \
  
negative.code:     wget \
      zlib1g-dev \
      && apt-get -y autoremove && apt-get clean autoclean && \
      rm -rf /var/cache/apt/archives/* && \
      rm -rf /var/lib/{apt,dpkg,cache,log}/
  
  RUN update-alternatives --install /usr/bin/clang clang /usr/bin/clang-3.6 100 && \
  