$ /build/build.sh Logging to GitLab Container Registry with CI credentials... WARNING! Using --password via the CLI is insecure. Use --password-stdin. Get https://registry-1.docker.io/v2/: unauthorized: incorrect username or password Building Heroku-based application using gliderlabs/herokuish docker image... invalid argument "/develop:531b6ccb6ea1eae11d0a9d04846e2866cf6acec5" for "-t, --tag" flag: invalid reference format See 'docker build --help'. invalid reference format ERROR: Job failed: exit code 1