If I navigate to:

https://ci.jenkins.io/blue/organizations/jenkins/Core%2Fjenkins/detail/PR-1883/53/tests

and click on line 6 of the logs, I cannot get a hyperlink to that line.

However, if I go to 

https://ci.jenkins.io/blue/organizations/jenkins/Core%2Fjenkins/detail/PR-1883/53/pipeline

I can get a direct hyperlink to a log line such as:

https://ci.jenkins.io/blue/organizations/jenkins/Core%2Fjenkins/detail/PR-1883/53/pipeline#step-98-log-5