[Qa-jenkins-scm] Build failed in Jenkins: reproducible_setup_schroot_unstable_armhf_ff2a #555

[jenkins at jenkins.debian.net]

See <https://jenkins.debian.net/job/reproducible_setup_schroot_unstable_armhf_ff2a/555/display/redirect>

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Failed to access build log

java.util.concurrent.TimeoutException: Ping started at 1498699591600 hasn't completed by 1498699831600
Caused: java.io.IOException
	at hudson.remoting.Channel.close(Channel.java:1292)
	at hudson.slaves.ChannelPinger$1.onDead(ChannelPinger.java:180)
	at hudson.remoting.PingThread.ping(PingThread.java:130)
	at hudson.remoting.PingThread.run(PingThread.java:86)
Caused: hudson.remoting.ChannelClosedException: channel is already closed
	at hudson.remoting.Channel.send(Channel.java:605)
	at hudson.remoting.Request.call(Request.java:130)
	at hudson.remoting.Channel.call(Channel.java:829)
	at hudson.FilePath.act(FilePath.java:986)
Caused: java.io.IOException: remote file operation failed: /srv/jenkins/pseudo-hosts/ff2a-armhf-rb/workspace/reproducible_setup_schroot_unstable_armhf_ff2a at hudson.remoting.Channel at faac18e:ff2a-armhf-rb.debian.net
	at hudson.FilePath.act(FilePath.java:993)
	at hudson.FilePath.act(FilePath.java:975)
	at hudson.FilePath.toURI(FilePath.java:1120)
	at hudson.tasks.MailSender.createFailureMail(MailSender.java:319)
	at hudson.tasks.MailSender.createMail(MailSender.java:181)
	at hudson.tasks.MailSender.run(MailSender.java:112)
	at hudson.tasks.Mailer.perform(Mailer.java:170)
	at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:81)
	at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
	at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:735)
	at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:676)
	at hudson.model.Build$BuildExecution.post2(Build.java:186)
	at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:621)
	at hudson.model.Run.execute(Run.java:1760)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
	at hudson.model.ResourceController.execute(ResourceController.java:97)
	at hudson.model.Executor.run(Executor.java:405)