Multiple jenkins failures with the mwext-php72-phan-docker job, eg https://integration.wikimedia.org/ci/job/mwext-php72-phan-docker/35233/console
11:53:36 <?xml version="1.0" encoding="ISO-8859-15"?> 11:53:36 <checkstyle version="6.5"/> 11:53:37 FATAL: Remote call on integration-agent-docker-1001 failed 11:53:37 Also: hudson.remoting.Channel$CallSiteStackTrace: Remote call to integration-agent-docker-1001 11:53:37 at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1737) 11:53:37 at hudson.remoting.UserRequest$ExceptionResponse.retrieve(UserRequest.java:356) 11:53:37 at hudson.remoting.Channel.call(Channel.java:951) 11:53:37 at hudson.Launcher$RemoteLauncher.kill(Launcher.java:1083) 11:53:37 at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:510) 11:53:37 at hudson.model.Run.execute(Run.java:1853) 11:53:37 at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43) 11:53:37 at hudson.model.ResourceController.execute(ResourceController.java:97) 11:53:37 at hudson.model.Executor.run(Executor.java:428) 11:53:37 java.lang.NoClassDefFoundError: Could not initialize class hudson.slaves.SlaveComputer 11:53:37 at hudson.util.ProcessTree.get(ProcessTree.java:432) 11:53:37 at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1100) 11:53:37 at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1091) 11:53:37 at hudson.remoting.UserRequest.perform(UserRequest.java:211) 11:53:37 at hudson.remoting.UserRequest.perform(UserRequest.java:54) 11:53:37 at hudson.remoting.Request$2.run(Request.java:369) 11:53:37 at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72) 11:53:37 at java.util.concurrent.FutureTask.run(FutureTask.java:266) 11:53:37 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) 11:53:37 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 11:53:37 at java.lang.Thread.run(Thread.java:748) 11:53:37 Caused: java.io.IOException: Remote call on integration-agent-docker-1001 failed 11:53:37 at hudson.remoting.Channel.call(Channel.java:957) 11:53:37 at hudson.Launcher$RemoteLauncher.kill(Launcher.java:1083) 11:53:37 at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:510) 11:53:37 at hudson.model.Run.execute(Run.java:1853) 11:53:37 at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43) 11:53:37 at hudson.model.ResourceController.execute(ResourceController.java:97) 11:53:37 at hudson.model.Executor.run(Executor.java:428)