Started by upstream project "<a href='/jenkins/job/buildsystem/' class='model-link'>buildsystem</a>" build number <a href='/jenkins/job/buildsystem/1465' class='model-link'>1465</a>
originally caused by:
 Started by user <a href='/jenkins/user/vince' class='model-link'>Vincent Sanders</a>
Building remotely on <a href='/jenkins/computer/ciworker1' class='model-link'>ciworker1</a> (m68k-atari-mint m5475-atari-mint) in workspace /var/lib/jenkins/workspace/buildsystem/HOST/m5475-atari-mint
java.io.IOException: remote file operation failed: /var/lib/jenkins/workspace/buildsystem/HOST/m5475-atari-mint at hudson.remoting.Channel@3aa1b8e1:ciworker1: java.io.IOException: Remote call on ciworker1 failed
	at hudson.FilePath.act(FilePath.java:985)
	at hudson.FilePath.act(FilePath.java:967)
	at org.jenkinsci.plugins.gitclient.Git.getClient(Git.java:131)
	at hudson.plugins.git.GitSCM.createClient(GitSCM.java:705)
	at hudson.plugins.git.GitSCM.createClient(GitSCM.java:697)
	at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1037)
	at hudson.scm.SCM.checkout(SCM.java:484)
	at hudson.model.AbstractProject.checkout(AbstractProject.java:1270)
	at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:609)
	at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:531)
	at hudson.model.Run.execute(Run.java:1741)
	at hudson.matrix.MatrixRun.run(MatrixRun.java:146)
	at hudson.model.ResourceController.execute(ResourceController.java:98)
	at hudson.model.Executor.run(Executor.java:374)
Caused by: java.io.IOException: Remote call on ciworker1 failed
	at hudson.remoting.Channel.call(Channel.java:761)
	at hudson.FilePath.act(FilePath.java:978)
	... 14 more
Caused by: java.lang.NoClassDefFoundError: Could not initialize class jdk.proxy4.$Proxy11
	at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
	at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:480)
	at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:1053)
	at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:1039)
	at hudson.remoting.RemoteInvocationHandler.wrap(RemoteInvocationHandler.java:111)
	at hudson.remoting.Channel.export(Channel.java:593)
	at hudson.remoting.Channel.export(Channel.java:562)
	at org.jenkinsci.plugins.gitclient.LegacyCompatibleGitAPIImpl.writeReplace(LegacyCompatibleGitAPIImpl.java:201)
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:568)
	at java.io.ObjectStreamClass.invokeWriteReplace(ObjectStreamClass.java:1160)
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1139)
	at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:350)
	at hudson.remoting.UserRequest._serialize(UserRequest.java:158)
	at hudson.remoting.UserRequest.serialize(UserRequest.java:167)
	at hudson.remoting.UserRequest.perform(UserRequest.java:129)
	at hudson.remoting.UserRequest.perform(UserRequest.java:49)
	at hudson.remoting.Request$2.run(Request.java:325)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
	at java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at hudson.remoting.Engine$1$1.run(Engine.java:69)
	at java.lang.Thread.run(Thread.java:840)
	at ......remote call to ciworker1(Native Method)
	at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1360)
	at hudson.remoting.UserResponse.retrieve(UserRequest.java:221)
	at hudson.remoting.Channel.call(Channel.java:753)
	... 15 more
Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.ExceptionInInitializerError [in thread "pool-1-thread-7 for channel"]
	at com.thoughtworks.xstream.XStream.setupConverters(XStream.java:811)
	at com.thoughtworks.xstream.XStream.&lt;init&gt;(XStream.java:574)
	at com.thoughtworks.xstream.XStream.&lt;init&gt;(XStream.java:496)
	at com.thoughtworks.xstream.XStream.&lt;init&gt;(XStream.java:465)
	at com.thoughtworks.xstream.XStream.&lt;init&gt;(XStream.java:411)
	at com.thoughtworks.xstream.XStream.&lt;init&gt;(XStream.java:350)
	at hudson.util.XStream2.&lt;init&gt;(XStream2.java:88)
	at hudson.ProxyConfiguration.&lt;clinit&gt;(ProxyConfiguration.java:266)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:375)
	at jdk.proxy4.$Proxy11.&lt;clinit&gt;(Unknown Source)
	at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
	at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:480)
	at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:1053)
	at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:1039)
	at hudson.remoting.RemoteInvocationHandler.wrap(RemoteInvocationHandler.java:111)
	at hudson.remoting.Channel.export(Channel.java:593)
	at hudson.remoting.Channel.export(Channel.java:562)
	at org.jenkinsci.plugins.gitclient.LegacyCompatibleGitAPIImpl.writeReplace(LegacyCompatibleGitAPIImpl.java:201)
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:568)
	at java.io.ObjectStreamClass.invokeWriteReplace(ObjectStreamClass.java:1160)
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1139)
	at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:350)
	at hudson.remoting.UserRequest._serialize(UserRequest.java:158)
	at hudson.remoting.UserRequest.serialize(UserRequest.java:167)
	at hudson.remoting.UserRequest.perform(UserRequest.java:129)
	at hudson.remoting.UserRequest.perform(UserRequest.java:49)
	at hudson.remoting.Request$2.run(Request.java:325)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
	at java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at hudson.remoting.Engine$1$1.run(Engine.java:69)
	at java.lang.Thread.run(Thread.java:840)
Finished: FAILURE