INFO: The SSH key ssh-ed25519 a0:c5:cc:b7:f8:3a:63:a5:58:92:a8:a8:b4:42:c9:44 has been successfully checked against the instance console for connections to EC2 (ubuntu-slave) - AWS Linux Jenkins Slave (i-0e5f54a8345c92453)
Jul 31, 2020 1:11:34 AM hudson.plugins.ec2.EC2Cloud
INFO: Connected via SSH.
Jul 31, 2020 1:11:34 AM hudson.plugins.ec2.EC2Cloud
INFO: connect fresh as root
Jul 31, 2020 1:11:34 AM hudson.plugins.ec2.EC2Cloud
INFO: Connecting to 10.27.252.14 on port 22, with timeout 10000.
Jul 31, 2020 1:11:34 AM hudson.plugins.ec2.EC2Cloud
INFO: Connection allowed after the host key has been verified
Jul 31, 2020 1:11:34 AM hudson.plugins.ec2.EC2Cloud
INFO: Connected via SSH.
Jul 31, 2020 1:11:34 AM hudson.plugins.ec2.EC2Cloud
INFO: Creating tmp directory (/tmp) if it does not exist
Jul 31, 2020 1:11:37 AM hudson.plugins.ec2.EC2Cloud
INFO: Verifying: java -fullversion
bash: java: command not found
Jul 31, 2020 1:11:37 AM hudson.plugins.ec2.EC2Cloud
INFO: Installing: sudo yum install -y java-1.8.0-openjdk.x86_64
sudo: yum: command not found
Jul 31, 2020 1:11:38 AM hudson.plugins.ec2.EC2Cloud
WARNING: Failed to install: sudo yum install -y java-1.8.0-openjdk.x86_64
Jul 31, 2020 1:11:38 AM hudson.plugins.ec2.EC2Cloud
INFO: Verifying: which scp
/usr/bin/scp
Jul 31, 2020 1:11:38 AM hudson.plugins.ec2.EC2Cloud
INFO: Copying remoting.jar to: /tmp
Jul 31, 2020 1:11:38 AM hudson.plugins.ec2.EC2Cloud
INFO: Launching remoting agent (via Trilead SSH2 Connection):  java  -jar /tmp/remoting.jar -workDir /home/ubuntu/
ERROR: unexpected stream termination
java.io.EOFException: unexpected stream termination
	at hudson.remoting.ChannelBuilder.negotiate(ChannelBuilder.java:415)
	at hudson.remoting.ChannelBuilder.build(ChannelBuilder.java:360)
	at hudson.slaves.SlaveComputer.setChannel(SlaveComputer.java:428)
	at hudson.plugins.ec2.ssh.EC2UnixLauncher.launchScript(EC2UnixLauncher.java:267)
	at hudson.plugins.ec2.EC2ComputerLauncher.launch(EC2ComputerLauncher.java:48)
	at hudson.slaves.SlaveComputer.lambda$_connect$0(SlaveComputer.java:297)
	at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46)
	at jenkins.security.ImpersonatingExecutorService$2.call(ImpersonatingExecutorService.java:71)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)