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?
time="2020-02-12T09:23:52Z" level=error msg="failed to dial gRPC: cannot connect to the Docker daemon. Is 'docker daemon' running on this host?: dial tcp 127.0.0.1:2375: connect: connection refused"
error during connect: Post http://localhost:2375/v1.40/build?buildargs=%7B%22BUILDPACK_URL%22%3A%22%22%2C%22FTP_PROXY%22%3A%22%22%2C%22HTTPS_PROXY%22%3A%22%22%2C%22HTTP_PROXY%22%3A%22%22%2C%22NO_PROXY%22%3A%22%22%2C%22ftp_proxy%22%3A%22%22%2C%22http_proxy%22%3A%22%22%2C%22https_proxy%22%3A%22%22%2C%22no_proxy%22%3A%22%22%7D&cachefrom=%5B%22registry-git.herzen.spb.ru%2F190710%2F2sem-pr%2Fmaster%3Af98309adf5bb0e753396513ff985bd712cec169c%22%2C%22registry-git.herzen.spb.ru%2F190710%2F2sem-pr%2Fmaster%3Alatest%22%5D&cgroupparent=&cpuperiod=0&cpuquota=0&cpusetcpus=&cpusetmems=&cpushares=0&dockerfile=Dockerfile&labels=%7B%7D&memory=0&memswap=0&networkmode=default&rm=1&session=l71oilz84244071v2fz53t4ck&shmsize=0&t=registry-git.herzen.spb.ru%2F190710%2F2sem-pr%2Fmaster%3A46be642de60ef99f99e60e0a4dda39fe7293a062&t=registry-git.herzen.spb.ru%2F190710%2F2sem-pr%2Fmaster%3Alatest&target=&ulimits=null&version=1: context canceled
section_end:1581499432:build_script
section_start:1581499432:after_script
section_end:1581499432:after_script
section_start:1581499432:upload_artifacts_on_failure
section_end:1581499433:upload_artifacts_on_failure
ERROR: Job failed: command terminated with exit code 1