Update Dockerfile for nightly build 1.6.1-nightly-b6b4004d5a5bf7099ac9ab76777797236da7fe63
Update Dockerfile for nightly build 1.6.1-nightly-b6b4004d5a5bf7099ac9ab76777797236da7fe63
strarsis/docker-golang-nightly,strarsis/docker-golang-nightly