I am experiencing a really annoying bug which is causing Jenkins to constantly build one of my Git projects.
The build for this project takes 6 hours to run, and usually around 2-3 hours into a build, it decides to queue another build. It has been going for an entire week!
Every time I kill a build, it starts a new one.

The only thing I can think which could have triggered it is I have started using branches with git.
It's configured to be triggered by "Poll SCM: * /5 * * * *", with no advanced options and a branch specifier as **. I tried switching it over to only the master branch, but it made no difference.

What sort of information do you need to debug this?
It's making it pointless to even run this through Jenkins, but with a 5-hour build it's hard to test on it's own.

Start of the Console Output:

Started by an SCM change
Started by an SCM change
Checkout:workspace / /var/lib/jenkins/jobs/DMSv3_Tools/workspace - hudson.remoting.LocalChannel@c4fa1cd
Using strategy: Default
Last Built Revision: Revision cb798e65db7ffab1a3ffc8eca065f589bcddea70 (origin/HEAD, origin/master)
Checkout:workspace / /var/lib/jenkins/jobs/DMSv3_Tools/workspace - hudson.remoting.LocalChannel@c4fa1cd
Wiping out workspace first.
Cloning the remote Git repository
Cloning repository origin
Fetching upstream changes from git@github.com:uberglobal/dmsv3_tools.git
Seen branch in repository origin/HEAD
Seen branch in repository origin/master
Seen branch in repository origin/migrate
Commencing build of Revision cb798e65db7ffab1a3ffc8eca065f589bcddea70 (origin/HEAD, origin/master)
Checking out Revision cb798e65db7ffab1a3ffc8eca065f589bcddea70 (origin/HEAD, origin/master)
Trying to fetch library into /var/lib/jenkins/jobs/DMSv3_Tools/workspace/library
Fetching upstream changes from git@github.com:uberglobal/php_ccl.git
Warning : There are multiple branch changesets here
[workspace] $ ant
Buildfile: build.xml

Polling log:

Started on Aug 19, 2011 2:45:52 PM
Using strategy: Default
[poll] Last Build : #92
[poll] Last Built Revision: Revision cb798e65db7ffab1a3ffc8eca065f589bcddea70 (origin/HEAD, origin/master)
Fetching changes from the remote Git repositories
Fetching upstream changes from git@github.com:uberglobal/dmsv3_tools.git
Polling for changes in
Seen branch in repository origin/HEAD
Seen branch in repository origin/master
Seen branch in repository origin/migrate
Seen branch in repository origin/scheduler
Done. Took 6.5 sec
Changes found