anchor.diff:    && curl https://bazel.build/bazel-release.pub.gpg | apt-key add -
   
   RUN apt-get update \
  -  && apt-get install -y bazel
  +  && apt-get install -y bazel && \
  +  rm -rf /var/lib/apt/lists/*
   
   ENV CONTAINER_STRUCTURE_TEST_VERSION=1.5.0
   RUN curl -LO https://storage.googleapis.com/container-structure-test/v${CONTAINER_STRUCTURE_TEST_VERSION}/container-structure-test-linux-amd64 \
  
positive.code:         software-properties-common \
          ruby-dev \
          apt-transport-https && \
      gem install  --no-document "asciidoctor-pdf:${ASCIIDOCTOR_PDF_VERSION}" \
          asciidoctor:${ASCIIDOCTOR_VERSION} \
          pygments.rb rouge && \
  
negative.code: 
  ENV ASCIIDOCTOR_VERSION=1.5.7.1
  ENV ASCIIDOCTOR_PDF_VERSION=1.5.0.alpha.16
  RUN apt-get update && apt-get install --no-install-recommends --no-install-suggests -y \
          ca-certificates \
          curl \
          build-essential \
  