~/src/phacility/core (master) $ ./bin/remote --trace deploy aux001.phacility.com
Deploying host aux001.phacility.com (with role aux).
>>> [0] <exec> $ ssh -t -q -o 'StrictHostKeyChecking=no' -o 'UserKnownHostsFile=/dev/null' bastion-external.phacility.net -- 'sudo -E -n -u ubuntu -- /core/bin/bastion ssh --host aux001.phacility.com -- '\''cat '\''\'\'''\''/core/conf/device.id'\''\'\'''\'''\'''
<<< [0] <exec> 1,166,734 us
>>> [1] <exec> $ ssh -t -q -o 'StrictHostKeyChecking=no' -o 'UserKnownHostsFile=/dev/null' bastion-external.phacility.net -- 'sudo -E -n -u ubuntu -- /core/bin/bastion ssh --host aux001.phacility.com -- '\''sudo -En -- add-apt-repository -y -- '\''\'\'''\''ppa:git-core/ppa'\''\'\'''\'''\'''
<<< [1] <exec> 817,070 us
[2018-04-11 23:19:29] EXCEPTION: (Exception) Command failed with error 255! at [<libcore>/workflow/remote/CoreRemoteWorkflow.php:59]
libcore(), phutil(head=master, ref.master=02012dae43a5)
  #0 CoreRemoteWorkflow::passthruRemote(string, string) called at [<libcore>/workflow/remote/CoreRemoteDeployWorkflow.php:105]
  #1 CoreRemoteDeployWorkflow::execute(PhutilArgumentParser) called at [<phutil>/src/parser/argument/PhutilArgumentParser.php:441]
  #2 PhutilArgumentParser::parseWorkflowsFull(array) called at [<phutil>/src/parser/argument/PhutilArgumentParser.php:333]
  #3 PhutilArgumentParser::parseWorkflows(array) called at [/Users/amckinley/src/phacility/core/scripts/remote.php:54]