anchor.diff: -<<<<<<< HEAD
   FROM ubuntu:trusty
   RUN apt-get update && apt-get install -y curl git-core build-essential wget unzip
   
  
positive.code: ENV GRADLE_VERSION 4.2
  ENV RUBY_VERSION 2.5.1
  ENV MIX_VERSION 1.0
  ||||||| merged common ancestors
  FROM ubuntu:xenial
  RUN apt-get update && apt-get install -y curl git-core build-essential wget unzip locales
  =======
  FROM ruby:2.5.1
  RUN apt-get update && apt-get install -y curl git-core build-essential wget unzip locales
  >>>>>>> use ruby image rather than installing with RVM
  
  # nodejs seems to be required for the one of the gems
  RUN curl -sL https://deb.nodesource.com/setup_8.x | bash - && \
  
negative.code: ENV LANGUAGE=en_US:en
  ENV LC_ALL=en_US.UTF-8
  
  #install rvm
  RUN curl -sSL https://rvm.io/mpapis.asc | gpg --import && \
      curl -sSL https://get.rvm.io | sudo bash -s stable --ruby=$RUBY_VERSION
  ENV PATH=/usr/local/rvm/bin:$PATH
  
  #install mix
  RUN wget https://packages.erlang-solutions.com/erlang-solutions_${MIX_VERSION}_all.deb && \
      sudo dpkg -i erlang-solutions_${MIX_VERSION}_all.deb && \
  