anchor.diff:          libsasl2-dev \
           libsnappy-dev \
           libssl-dev \
  +        libsnappy-dev \
           libtool \
           libzstd1-dev \
           locales \
  
positive.code:         python-setuptools \
          python-wheel \
          rsync \
          software-properties-common \
          snappy \
          sudo \
          valgrind \
          zlib1g-dev \
  
negative.code:     && apt-get clean \
      && rm -rf /var/lib/apt/lists/*
  
  ######
  # Install Google Protobuf 3.7.1 (3.0.0 ships with Bionic)
  ######
  # hadolint ignore=DL3003
  RUN mkdir -p /opt/protobuf-src \
  