[10/26/17 15:28:30] [SSH] Starting slave process: cd "/srv/jenkins/home/jenkins-deploy" && java  -jar slave.jar

<===[JENKINS REMOTING CAPACITY]===>ERROR: Unexpected error in launching a slave. This is probably a bug in Jenkins.
java.lang.IllegalStateException: Already connected
	at hudson.slaves.SlaveComputer.setChannel(SlaveComputer.java:485)
	at hudson.slaves.SlaveComputer.setChannel(SlaveComputer.java:390)
	at hudson.plugins.sshslaves.SSHLauncher.startSlave(SSHLauncher.java:1074)
	at hudson.plugins.sshslaves.SSHLauncher.access$500(SSHLauncher.java:145)
	at hudson.plugins.sshslaves.SSHLauncher$2.call(SSHLauncher.java:818)
	at hudson.plugins.sshslaves.SSHLauncher$2.call(SSHLauncher.java:793)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
[10/26/17 15:28:30] Launch failed - cleaning up connection
[10/26/17 15:28:30] [SSH] Connection closed.