Update Dockerfile for nightly build 1.6beta1-nightly-1f26864f88a419e6e99c6a4d171a5a15b09739a1
Update Dockerfile for nightly build 1.6beta1-nightly-1f26864f88a419e6e99c6a4d171a5a15b09739a1
strarsis/docker-golang-nightly,strarsis/docker-golang-nightly