PHP Fatal error: Uncaught RuntimeException: Failed to listen on "tcp://127.0.0.1:35110": Address already in use

[sghoweri]

Unfortunately it looks like #46 might not be the cure-all I was hoping it would be.

Still semi-frequently seeing random PHP runtime errors regarding ports being already taken:

• https://travis-ci.com/bolt-design-system/bolt/jobs/217538328#L685
• https://travis-ci.com/bolt-design-system/bolt/jobs/217551252#L700