[jbosstools-builds] Build failed in Jenkins: jbosstools-build-sites.aggregate.site_master #6752

[ci-builds at redhat.com]

See <http://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/jbosstools-build-sites.aggregate.site_master/6752/>

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Started by upstream project "jbosstools-composite-install_master" build number 2553
Started by upstream project "jbosstools-composite-install_master" build number 2554
[EnvInject] - Loading node environment variables.
Building remotely on soa3-RHEL5-x86 in workspace <http://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/jbosstools-build-sites.aggregate.site_master/ws/>
Checkout:jbosstools-build-sites.aggregate.site_master / <http://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/jbosstools-build-sites.aggregate.site_master/ws/> - hudson.remoting.Channel at 144dc65a:soa3-RHEL5-x86
Using strategy: Default
Last Built Revision: Revision 6db485efd759c39f213b8b3e7faf4d3cc4d4fee0 (origin/master)
Fetching changes from 1 remote Git repository
Fetching upstream changes from git://github.com/jbosstools/jbosstools-build-sites.git
Commencing build of Revision 6db485efd759c39f213b8b3e7faf4d3cc4d4fee0 (origin/master)
Checking out Revision 6db485efd759c39f213b8b3e7faf4d3cc4d4fee0 (origin/master)
FATAL: Could not checkout null with start point 6db485efd759c39f213b8b3e7faf4d3cc4d4fee0
hudson.plugins.git.GitException: Could not checkout null with start point 6db485efd759c39f213b8b3e7faf4d3cc4d4fee0
	at hudson.plugins.git.GitAPI.checkoutBranch(GitAPI.java:978)
	at hudson.plugins.git.GitSCM$4.invoke(GitSCM.java:1239)
	at hudson.plugins.git.GitSCM$4.invoke(GitSCM.java:1223)
	at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2236)
	at hudson.remoting.UserRequest.perform(UserRequest.java:118)
	at hudson.remoting.UserRequest.perform(UserRequest.java:48)
	at hudson.remoting.Request$2.run(Request.java:326)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
	at java.lang.Thread.run(Thread.java:662)
Caused by: hudson.plugins.git.GitException: Command "git checkout -f 6db485efd759c39f213b8b3e7faf4d3cc4d4fee0" returned status code 128:
stdout: 
stderr: fatal: unable to write new index file

	at hudson.plugins.git.GitAPI.launchCommandIn(GitAPI.java:885)
	at hudson.plugins.git.GitAPI.launchCommand(GitAPI.java:846)
	at hudson.plugins.git.GitAPI.launchCommand(GitAPI.java:856)
	at hudson.plugins.git.GitAPI.checkoutBranch(GitAPI.java:965)
	... 12 more