https://docs.docker.com/engine/reference/commandline/login/#credentials-store

Login Succeeded
Building Heroku-based application using gliderlabs/herokuish docker image...
Cannot connect to the Docker daemon at tcp://localhost:2375. Is the docker daemon running?
Cannot connect to the Docker daemon at tcp://localhost:2375. Is the docker daemon running?
Cannot connect to the Docker daemon at tcp://localhost:2375. Is the docker daemon running?
time="2020-02-07T09:01:28Z" level=error msg="Can't add file /builds/190710/2sem-pr/.git/objects/f6/880ae8f54bf0538b22f21b75c40dde46637c2f to tar: io: read/write on closed pipe"
section_end:1581066088:build_script
section_start:1581066088:after_script
section_end:1581066089:after_script
section_start:1581066089:upload_artifacts_on_failure
section_end:1581066089:upload_artifacts_on_failure
ERROR: Job failed: command terminated with exit code 1