anchor.diff:  RUN apt-get install -y build-essential
   RUN apt-get install -y automake autoconf
   
  -# SSHD
  +# SSH Daemon
   RUN apt-get install -y ssh && \
     mkdir /var/run/sshd && \
     chmod 0755 /var/run/sshd
  
positive.code: ENV LANG en_US.UTF-8
  ENV LANGUAGE en_US.UTF-8
  
  # Basic tools
  RUN apt-get update
  RUN apt-get install -y wget bcrypt curl
  RUN apt-get install -y unzip zip
  
negative.code: RUN git clone https://github.com/yegor256/rultor.git && \
    cd rultor && \
    gem install jekyll && \
    mvn clean install -Pqulice && \
    cd .. && \
    rm -rf rultor
  
  