anchor.diff:  
   # Install Go
   ENV GO_VERSION 1.4.2
  -RUN curl -sSL https://golang.org/dl/go${GO_VERSION}.src.tar.gz | tar -v -C /usr/local -xz \
  +RUN curl -sSL http://golangtc.com/static/go/go${GO_VERSION}.src.tar.gz | tar -v -C /usr/local -xz \
   	&& mkdir -p /go/bin
   ENV PATH /go/bin:/usr/local/go/bin:$PATH
   ENV GOPATH /go:/go/src/github.com/docker/docker/vendor
  
positive.code: 	done
  
  # We still support compiling with older Go, so need to grab older "gofmt"
  ENV GOFMT_VERSION 1.3.3
  RUN curl -sSL https://storage.googleapis.com/golang/go${GOFMT_VERSION}.$(go env GOOS)-$(go env GOARCH).tar.gz | tar -C /go/bin -xz --strip-components=2 go/bin/gofmt
  
  # Grab Go's cover tool for dead-simple code coverage testing
  RUN go get golang.org/x/tools/cmd/cover
  
  # TODO replace FPM with some very minimal debhelper stuff
  RUN gem install --no-rdoc --no-ri fpm --version 1.3.2
  
negative.code: RUN ln -sfv $PWD/.bashrc ~/.bashrc
  
  # Get useful and necessary Hub images so we can "docker load" locally instead of pulling
  #COPY contrib/download-frozen-image.sh /go/src/github.com/docker/docker/contrib/
  #RUN ./contrib/download-frozen-image.sh /docker-frozen-images \
  #	busybox:latest@4986bf8c15363d1c5d15512d5266f8777bfba4974ac56e3270e7760f6f0a8125 \
  #	hello-world:frozen@e45a5af57b00862e5ef5782a9925979a02ba2b12dff832fd0991335f4a11e5c5
  # see also "hack/make/.ensure-frozen-images" (which needs to be updated any time this list is)
  
  # Install man page generator
  