我正在尝试在我的虚拟机箱（Ubuntu 16.04）上使用gitlab执行CI / CD并收到以下错误： -
BGitlab跑者跑得很好：
Running with gitlab-runner 10.5.0 (80b03db9)
on sr-runner 1d32ebc7
Using Docker executor with image node:carbon-alpine ...
Pulling docker image node:carbon-alpine ...
Using docker image sha256:e707e7ad71865cab957512e1fab31873b7996e239859d733470eb707c31dd37d for node:carbon-alpine ...
Running on runner-1d32ebc7-project-1-concurrent-0 via practice-VirtualBox...
Fetching changes...
HEAD is now at 9618581 Removing yarn
fatal: unable to access 'http://gitlab-ci-token:xxxxxxxxxxxxxxxxxxxx@localhost/personal/firstAngular.git/': Failed to connect to localhost port 80: Connection refused
ERROR: Job failed: exit code 1
请告知这里可能出现的问题？