Bug: Pipeline log shows incomplete

Summary

When I run a pipeline, I found the pipeline logs can not show completed. as following, the pipeline already failed, but I don't know why through the logs.

Steps to reproduce

1. create a project
2. create a pipeline which command may cause errors, like following:

stages:
    - get

job:
    stage: get
    script:
        - BODY='comments one'
        - DUPLICATE=`curl -s --header "PRIVATE-TOKEN:$TOKEN" "https://jihulab.com/api/v4/projects/22724/issues/1/notes" | grep "comment" |wc -l`
        - echo result-$DUPLICATE

3. when pipeline run completed, pipeline failed and no errors show

Example Project

What is the current bug behavior?

What is the expected correct behavior?

Relevant logs and/or screenshots

Output of checks

Results of GitLab environment info

SaaS Platform

Expand for output related to GitLab environment info

(For installations with omnibus-gitlab package run and paste the output of:
`sudo gitlab-rake gitlab:env:info`)

(For installations from source run and paste the output of:
`sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production`)

Results of GitLab application Check

Expand for output related to the GitLab application check

(For installations with omnibus-gitlab package run and paste the output of:
sudo gitlab-rake gitlab:check SANITIZE=true)
(For installations from source run and paste the output of:
sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production SANITIZE=true)
(we will only investigate if the tests are passing)

Possible fixes