anchor.diff:  
       && mkdir -p /usr/src/sentry \
       && cd /usr/src/sentry \
  -    && curl -SL "https://github.com/getsentry/sentry/archive/${SENTRY_BUILD}.tar.gz" | tar -xzf - --strip-components=1 \
  +    && wget -qO - "https://github.com/getsentry/sentry/archive/${SENTRY_BUILD}.tar.gz" | tar -xzf - --strip-components=1 \
       && python setup.py bdist_wheel \
       && npm cache clear \
       && rm -rf /usr/local/node \
   
       && pip install dist/*.whl \
   
  -    && apt-get purge -y --auto-remove make g++ \
  +    && apt-get purge -y --auto-remove make g++ wget \
       && rm -rf /usr/src/sentry
   
   ENV SENTRY_CONF=/etc/sentry \
  
positive.code: # grab gosu for easy step-down from root
  ENV GOSU_VERSION 1.7
  RUN set -x \
      && curl -o /usr/local/bin/gosu -SL "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture)" \
      && curl -o /usr/local/bin/gosu.asc -SL "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture).asc" \
      && export GNUPGHOME="$(mktemp -d)" \
      && gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
      && gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu \
      && rm -r "$GNUPGHOME" /usr/local/bin/gosu.asc \
      && chmod +x /usr/local/bin/gosu \
      && gosu nobody true
  
  # grab tini for signal processing and zombie killing
  ENV TINI_VERSION v0.9.0
  RUN set -x \
      && curl -o /usr/local/bin/tini -sSL "https://github.com/krallin/tini/releases/download/$TINI_VERSION/tini" \
      && curl -o /usr/local/bin/tini.asc -sSL "https://github.com/krallin/tini/releases/download/$TINI_VERSION/tini.asc" \
      && export GNUPGHOME="$(mktemp -d)" \
      && gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 6380DC428747F6C393FEACA59A84159D7001A4E5 \
      && gpg --batch --verify /usr/local/bin/tini.asc /usr/local/bin/tini \
      && rm -r "$GNUPGHOME" /usr/local/bin/tini.asc \
      && chmod +x /usr/local/bin/tini \
      && tini -h
  
  # Support for RabbitMQ
  RUN pip install librabbitmq==1.6.1
  
negative.code: RUN groupadd -r sentry && useradd -r -m -g sentry sentry
  
  RUN apt-get update && apt-get install -y --no-install-recommends \
          gcc \
          git \
          libffi-dev \
  