anchor.diff:      SWIFT_WEBDIR="$SWIFT_WEBROOT/$SWIFT_BRANCH/$(echo $SWIFT_PLATFORM | tr -d .)/" \
       && SWIFT_BIN_URL="$SWIFT_WEBDIR/$SWIFT_VERSION/$SWIFT_VERSION-$SWIFT_PLATFORM.tar.gz" \
       && SWIFT_SIG_URL="$SWIFT_BIN_URL.sig" \
  +    # - Grab curl here so we cache better up above
  +    && export DEBIAN_FRONTEND=noninteractive \
  +    && apt-get -q update && apt-get -q install -y curl && rm -rf /var/lib/apt/lists/* \
       # - Download the GPG keys, Swift toolchain, and toolchain signature, and verify.
       && export GNUPGHOME="$(mktemp -d)" \
       && curl -fsSL "$SWIFT_BIN_URL" -o swift.tar.gz "$SWIFT_SIG_URL" -o swift.tar.gz.sig \
  
positive.code:     sudo apt-get install -y esl-erlang && \
      sudo apt-get install -y elixir
  
  # install bundler
  RUN bash -lc "gem update --system && gem install bundler"
  
  # install conan
  RUN apt-get install -y python-dev && \
  	pip install --no-cache-dir --ignore-installed six --ignore-installed colorama \
  
negative.code: ENV LANGUAGE=en_US:en
  ENV LC_ALL=en_US.UTF-8
  
  # install Cargo
  RUN curl https://sh.rustup.rs -sSf | bash -ls -- -y --profile minimal
  
  #install rvm
  RUN apt-add-repository -y ppa:rael-gc/rvm && \
      apt update && apt install -y rvm && \
      /usr/share/rvm/bin/rvm install --default $RUBY_VERSION
  
  # install bundler
  RUN bash -lc "gem update --system && gem install bundler"
  
  #install mix
  RUN wget https://packages.erlang-solutions.com/erlang-solutions_${MIX_VERSION}_all.deb && \
  