Theano timeout

[alston]

I'm running this command sudo docker build -t floydhub/dl-docker:gpu -f Dockerfile.gpu . on my NVidia GTX 1080 Ubuntu 16.04 machine but got this error:

Collecting git+git://github.com/Theano/Theano.git@rel-0.8.2
  Cloning git://github.com/Theano/Theano.git (to rel-0.8.2) to /tmp/pip-5nHE0U-build
fatal: unable to connect to github.com:
github.com[0: 192.30.253.112]: errno=Connection timed out
github.com[1: 192.30.253.113]: errno=Connection timed out

Command "git clone -q git://github.com/Theano/Theano.git /tmp/pip-5nHE0U-build" failed with error code 128 in None

The command '/bin/sh -c pip --no-cache-dir install git+git://github.com/Theano/Theano.git@${THEANO_VERSION} && 		echo "[global]\ndevice=gpu\nfloatX=float32\noptimizer_including=cudnn\nmode=FAST_RUN 		\n[lib]\ncnmem=0.95 		\n[nvcc]\nfastmath=True 		\n[blas]\nldflag = -L/usr/lib/openblas-base -lopenblas 		\n[DebugMode]\ncheck_finite=1" 	> /root/.theanorc' returned a non-zero code: 1

Any ideas?