Build failed in Jenkins: calligra_master » NoOpenGL,LINBUILDER #114

[KDE CI System]

See <http://build.kde.org/job/calligra_master/Variation=NoOpenGL,label=LINBUILDER/114/>

------------------------------------------
Started by upstream project "calligra_master" build number 114
originally caused by:
 Started by remote host 127.0.0.1 with note: Triggered by commit
Building remotely on LinuxSlave - 4 in workspace <http://build.kde.org/job/calligra_master/Variation=NoOpenGL,label=LINBUILDER/ws/>
Running Prebuild steps
[LINBUILDER] $ /bin/sh -xe /tmp/hudson5958020636263281717.sh
+ /home/jenkins/scripts/setup-env.sh

Preparing to perform KDE Continuous Integration build
== Setting Up Sources

>From git://anongit.kde.org/calligra
   c624ca5..c607783  krita-sketch_theming-ahiemstra -> origin/krita-sketch_theming-ahiemstra
   52739d9..9378801  master     -> origin/master
Branch jenkins set up to track remote branch master from origin.

== Cleaning Source Tree

HEAD is now at 52739d9 Remove KoView::canvas() method
Removing build/
Removing install/
Success build forhudson.tasks.Shell at fdcd766
Fetching changes from the remote Git repository
Fetching upstream changes from git://anongit.kde.org/calligra.git
Checking out Revision 4eddb768f0c2b71f822fcdf93dc1007bd8428691 (refs/heads/jenkins)
FATAL: Could not checkout null with start point 4eddb768f0c2b71f822fcdf93dc1007bd8428691
hudson.plugins.git.GitException: Could not checkout null with start point 4eddb768f0c2b71f822fcdf93dc1007bd8428691
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.checkoutBranch(CliGitAPIImpl.java:1274)
	at sun.reflect.GeneratedMethodAccessor162.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:299)
	at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:280)
	at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:239)
	at hudson.remoting.UserRequest.perform(UserRequest.java:118)
	at hudson.remoting.UserRequest.perform(UserRequest.java:48)
	at hudson.remoting.Request$2.run(Request.java:328)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:744)
Caused by: hudson.plugins.git.GitException: Command "git checkout -f 4eddb768f0c2b71f822fcdf93dc1007bd8428691" returned status code 128:
stdout: 
stderr: fatal: reference is not a tree: 4eddb768f0c2b71f822fcdf93dc1007bd8428691

	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1148)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1125)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1121)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommand(CliGitAPIImpl.java:937)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommand(CliGitAPIImpl.java:947)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.checkout(CliGitAPIImpl.java:1248)
	at hudson.plugins.git.GitAPI.checkout(GitAPI.java:208)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.checkoutBranch(CliGitAPIImpl.java:1258)
	... 14 more