betty-arc64-paladin failing, looks like ssh commands cannot run? 


Possibly related change?
https://chromium-review.googlesource.com/c/chromiumos/platform/tast-tests/+/1357258

https://cros-goldeneye.corp.google.com/chromeos/healthmonitoring/buildDetails?buildbucketId=8928207545579329984

stderr:
08:51:08 INFO | autoserv| mm_send_fd: file descriptor passing not supported
08:51:08 INFO | autoserv| mux_client_request_session: send fds failed
08:51:08 INFO | autoserv| after_hook completed
08:51:08 INFO | autoserv| ERROR	cheets_CTS_N.7.1_r23.x86.CtsDramTestCases	cheets_CTS_N.7.1_r23.x86.CtsDramTestCases	timestamp=1543855868	localtime=Dec 03 08:51:08	Unhandled AutoservRunError: command execution error
08:51:08 INFO | autoserv| * Command:
08:51:08 INFO | autoserv| /usr/bin/ssh -a -x  -o ControlPath=/tmp/_autotmp_bFhIkEssh-master/socket
08:51:08 INFO | autoserv| -o Protocol=2 -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null
08:51:08 INFO | autoserv| -o BatchMode=yes -o ConnectTimeout=30 -o ServerAliveInterval=900 -o
08:51:08 INFO | autoserv| ServerAliveCountMax=3 -o ConnectionAttempts=4 -l root -p 9228 127.0.0.1
08:51:08 INFO | autoserv| "export LIBC_FATAL_STDERR_=1; if type \"logger\" > /dev/null 2>&1; then
08:51:08 INFO | autoserv| logger -tag \"autotest\"
08:51:08 INFO | autoserv| \"server[stack::get_release_builder_path|_get_lsb_release_content|run] ->
08:51:08 INFO | autoserv| ssh_run(cat \\\"/etc/lsb-release\\\")\";fi; cat \"/etc/lsb-release\""
08:51:08 INFO | autoserv| Exit status: 255
08:51:08 INFO | autoserv| Duration: 0.00615692138672
08:51:08 INFO | autoserv|