anchor.diff:      && chmod +x $HOME/bin/minio
   
   # set TRAVIS_BUILD_DIR for integration script
  -ENV TRAVIS_BUILD_DIR $GOPATH/src/github.com/restic/restic
  -ENV GOPATH $GOPATH:${TRAVIS_BUILD_DIR}/Godeps/_workspace
  +ENV TRAVIS_BUILD_DIR $HOME/restic
   
  -WORKDIR $TRAVIS_BUILD_DIR
  +WORKDIR $HOME/restic
  
positive.code: RUN wget -q -O /tmp/go.tar.gz https://storage.googleapis.com/golang/go${GOVERSION}.linux-${GOARCH}.tar.gz
  RUN tar xf /tmp/go.tar.gz && rm -f /tmp/go.tar.gz
  ENV GOROOT $HOME/go
  ENV PATH $PATH:$GOROOT/bin
  
  ENV GOPATH $HOME/gopath
  ENV PATH $PATH:$GOPATH/bin
  
  RUN mkdir -p $GOPATH/src/github.com/restic/restic
  
  # pre-install tools, this speeds up running the tests itself
  RUN go get github.com/tools/godep
  RUN go get golang.org/x/tools/cmd/cover
  RUN go get github.com/mattn/goveralls
  RUN go get github.com/mitchellh/gox
  
negative.code: # build the image:
  #   docker build -t restic/test .
  #
  # run all tests and cross-compile restic:
  #   docker run --rm -v $PWD:/home/travis/restic restic/test go run run_integration_tests.go -minio minio
  #
  # run interactively:
  #   docker run --interactive --tty --rm -v $PWD:/home/travis/restic restic/test /bin/bash
  #
  # run a subset of tests:
  #   docker run --rm -v $PWD:/home/travis/restic restic/test gb test -v ./backend
  #
  # build the image for an older version of Go:
  #   docker build --build-arg GOVERSION=1.3.3 -t restic/test:go1.3.3 .
  
  FROM ubuntu:14.04
  
  ARG GOVERSION=1.6
  ARG GOARCH=amd64
  
  # install dependencies
  