anchor.diff:  
   #timeout is a fallback in case an error with node
   #prevents it from exiting properly
  -ENTRYPOINT ["timeout", "15", "node"]
  +#ENTRYPOINT ["timeout", "15", "node"]
  
positive.code: # Install Coffeescript
  RUN npm -g install coffee-script
  RUN npm -g install chai
  #RUN npm -g install mocha
  
  # Install Python 3
  
  
negative.code: RUN cabal update
  RUN cabal install hspec
  
  # Install Julia
  # Julia is really slow, but v0.3 is okay (see http://stackoverflow.com/a/20566032)
  # In the future, don't use nightly builds, use releases
  RUN add-apt-repository ppa:staticfloat/julianightlies
  RUN add-apt-repository ppa:staticfloat/julia-deps
  RUN apt-get update
  RUN apt-get -y install julia
  # Nightly builds have a noisy OpenBLAS error, workaround
  RUN mv /usr/bin/julia /usr/bin/julia-noisy
  RUN printf '#!/bin/bash\njulia-noisy "$@" 2> >(grep -v "OpenBLAS : Your OS does not support AVX instructions." 1>&2)' > /usr/bin/julia
  RUN chmod a+x /usr/bin/julia
  
  # ADD cli-runner and install node deps
  ADD . /cli-runner
  WORKDIR /cli-runner
  