Console Output

$ docker login -u dockerbuildbot -p ******** https://index.docker.io/v1/
WARNING! Using --password via the CLI is insecure. Use --password-stdin.
WARNING! Your password will be stored unencrypted in /home/ubuntu/workspace/docker-ce-packaging_PR-672@tmp/24c019d5-2ecd-4754-b020-b90f76a87f6f/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store

Login Succeeded