Build failed in Jenkins: spring-extensions-v5-multi » JDK-1.8,WindowsServer2012 #994

[Shibboleth Jenkins]

See <https://build.shibboleth.net/jenkins/job/spring-extensions-v5-multi/jdk=JDK-1.8,label=WindowsServer2012/994/display/redirect>

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Started by upstream project "spring-extensions-v5-multi" build number 994
originally caused by:
 Started by timer
Building remotely on WindowsServer2012 (windows) in workspace <https://build.shibboleth.net/jenkins/job/spring-extensions-v5-multi/jdk=JDK-1.8,label=WindowsServer2012/ws/>
 > git rev-parse --is-inside-work-tree # timeout=10
Fetching changes from the remote Git repository
 > git config remote.origin.url git://git.shibboleth.net/spring-extensions # timeout=10
Fetching upstream changes from git://git.shibboleth.net/spring-extensions
 > git --version # timeout=10
 > git fetch --tags --progress git://git.shibboleth.net/spring-extensions +refs/heads/*:refs/remotes/origin/*
Checking out Revision f40a08cde1679ce163c9854fcf564a30690a60d6 (refs/remotes/origin/maint-5)
 > git config core.sparsecheckout # timeout=10
 > git checkout -f f40a08cde1679ce163c9854fcf564a30690a60d6
FATAL: Could not checkout f40a08cde1679ce163c9854fcf564a30690a60d6
hudson.plugins.git.GitException: Command "git checkout -f f40a08cde1679ce163c9854fcf564a30690a60d6" returned status code 128:
stdout: 
stderr: fatal: unable to write new index file

	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2016)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$800(CliGitAPIImpl.java:72)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$9.execute(CliGitAPIImpl.java:2315)
Also:   hudson.remoting.Channel$CallSiteStackTrace: Remote call to WindowsServer2012
		at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1741)
		at hudson.remoting.UserResponse.retrieve(UserRequest.java:389)
		at hudson.remoting.Channel.call(Channel.java:955)
		at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.execute(RemoteGitImpl.java:146)
		at sun.reflect.GeneratedMethodAccessor356.invoke(Unknown Source)
		at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
		at java.lang.reflect.Method.invoke(Method.java:498)
		at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.invoke(RemoteGitImpl.java:132)
		at com.sun.proxy.$Proxy78.execute(Unknown Source)
		at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1236)
		at hudson.scm.SCM.checkout(SCM.java:504)
		at hudson.model.AbstractProject.checkout(AbstractProject.java:1208)
		at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:574)
		at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
		at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:499)
		at hudson.model.Run.execute(Run.java:1798)
		at hudson.matrix.MatrixRun.run(MatrixRun.java:153)
		at hudson.model.ResourceController.execute(ResourceController.java:97)
		at hudson.model.Executor.run(Executor.java:429)
Caused: hudson.plugins.git.GitException: Could not checkout f40a08cde1679ce163c9854fcf564a30690a60d6
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$9.execute(CliGitAPIImpl.java:2339)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:153)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:146)
	at hudson.remoting.UserRequest.perform(UserRequest.java:207)
	at hudson.remoting.UserRequest.perform(UserRequest.java:53)
	at hudson.remoting.Request$2.run(Request.java:358)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
TestNG Reports Processing: START
Looking for TestNG results report in workspace using pattern: **/target/surefire-reports/testng-results.xml
testng-results.xml was last modified before this build started. Ignoring it.
Saving reports...
Found matching files but did not find any TestNG results.