anchor.diff:      --no-install-recommends \
       && rm -rf /var/lib/apt/lists/*
   
  -# Below copied from nodejs/docker-node/4.1
  +# Below copied from nodejs/docker-node/5.5
   #
   # LICENSE:
   #  The MIT License (MIT)
  
positive.code: FROM golang:1.5
  ENV GOOS linux
  ENV GOARCH amd64
  RUN go get github.com/tools/godep && go get github.com/jteeuwen/go-bindata/...
  
negative.code:     FD3A5288F042B6850C66B31F09FE44734EB7990E \
      71DCFD284A79C3B38668286BC97EC7A07EDE3FC1 \
      DD8F2338BAE7501E3DD5AC78C273792F7D83545D \
      B9AE9905FFD7803F25714661B63B535A4C206CA9 \
      C4F0DFFF4E8C1A8236409D08E73BC641CC11F4C8 \
    ; do \
      gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
    done
  
  ENV NPM_CONFIG_LOGLEVEL info
  ENV NODE_VERSION 5.5.0
  
  RUN curl -SLO "https://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_VERSION-linux-x64.tar.gz" \
    && curl -SLO "https://nodejs.org/dist/v$NODE_VERSION/SHASUMS256.txt.asc" \
  