Update Dockerfile for nightly build 1.6beta1-nightly-40a26c92812a0b49a6a8335c9cb70a78fd380967
Update Dockerfile for nightly build 1.6beta1-nightly-40a26c92812a0b49a6a8335c9cb70a78fd380967
strarsis/docker-golang-nightly,strarsis/docker-golang-nightly