Initialized empty Git repository in /home/gitlab-runner/builds/cd221133/0/hanzhanli/readings/.git/ Checking out d6fb1e93 as master... Skipping Git submodules setup $ # Auto DevOps variables and functions # collapsed multi-line command $ setup_docker $ build Logging to GitLab Container Registry with CI credentials... bash: line 80: docker: command not found ERROR: Job failed: exit status 1