anchor.diff:  RUN mkdir -p $CARGO_TARGET_DIR
   WORKDIR /src
   CMD cargo test --no-fail-fast --all-features --all --exclude aarch64 $TEST_FLAGS -- \
  -    --test-threads=1 $TEST_RUNNER_FLAGS
  +    --test-threads=1 $TEST_RUNNER_FLAGS && \
  +    cargo fmt --all -- --check
  
positive.code: FROM debian:stretch
  LABEL description="Test crosvm using a command like the following: \
  docker run --privileged -v /dev/log:/dev/log -v <path to crosvm>:/src:ro <crosvm base image>"
  
negative.code:     && echo "f69dafcca62fe70d7882113e21bb96a2cbdf4fc4636d25337d6de9191bdec8da *rustup-init" | sha256sum -c - \
      && chmod +x rustup-init \
      && ./rustup-init -y --no-modify-path --default-toolchain $RUST_VERSION \
      && rustup component add rustfmt-preview \
      && rm rustup-init \
      && chmod -R a+w $RUSTUP_HOME $CARGO_HOME \
      && rustup --version \
  