Hi, On Monday 14 January 2019 03:43 AM, Utkarsh Gupta wrote: > Hi, > > I was building ruby-sidekiq-cron (via dpkg-buildpackage -uc -us) and got > the following errors [1]. > Could someone possibly walk me through the possible workaround? > > [1]: https://paste.debian.net/1060317/ > Some test in sidekiq-cron has to open a port which is already in use. Have you to tried building with sbuild or in any other chroots ?