Update Dockerfile for nightly build 1.6rc1-nightly-af15beeab5ff9cde411c3db086ca9a24ace4c898
Update Dockerfile for nightly build 1.6rc1-nightly-af15beeab5ff9cde411c3db086ca9a24ace4c898
strarsis/docker-golang-nightly,strarsis/docker-golang-nightly