anchor.diff: -FROM ubuntu
  +FROM ubuntu:trusty
   MAINTAINER Songge Chen <chen.s@wustl.edu>
   
   ENV project-name belvedere
  
positive.code: RUN chmod 755 /root/belvedere/scripts/ci/test.sh
  
  RUN /root/belvedere/scripts/ci/prepare.sh
  RUN /root/belvedere/scripts/ci/test.sh
negative.code: ENV LANGUAGE en_US:en
  ENV LC_ALL en_US.UTF-8
  
  RUN apt-get update && apt-get -y upgrade
  RUN apt-get install -y \
  curl \
  build-essential \
  libncurses5-dev \
  