Subject: Hydra: failures to create GC root /home/hydra/offload-*
From: Mark H Weaver <[email-masked]>
To: [email-masked]
Date: Wed, 24 Sep 2014 22:30:42 -0400
List-Id: <debbugs-submit.debbugs.gnu.org>

I've seen several failed builds on Hydra where the build log ends with
something like this:

--8<---------------cut here---------------start------------->8---
phase `strip' succeeded after 0 seconds
@ build-succeeded /gnu/store/b20viwrr0h5y2mqdpx9bpi21snb4fv5c-xkeyboard-config-2.6.drv -
/gnu/store/sp60mrd8hashvh0v8l17gn2mz87a34kl-xkeyboard-config-2.6
guix build: error: failed to create GC root `/home/hydra/offload-20121227-hydra.gnu.org-18304': File exists
--8<---------------cut here---------------end--------------->8---

Simply restarting the jobs typically result in successful builds.

     Mark