Supervisor => INFO gave up: phpci_00 entered FATAL state, too many start retries too quickly

Before submitting your issue, please make sure that you've checked all of the checkboxes below.

[x] You're running the latest release version of PHPCI.
[x] Ensure that you're running at least PHP 5.3.6, you can check this by running php -v
[x] You've run composer install --no-dev -o from the root of your installation.
[x] You have set up either the PHPCI Worker, Daemon or Cron Job to run builds.

To help us better understand your issue, please answer the following.

Expected behaviour

Run queued builds as expected.

Actual behaviour

My build are queued but not running. For some reason, the queued build is throwing an error and they cannot be build.

Steps to reproduce

Queue several builds one after another (like a set of commits, using more than 1 branch). GitHub will call the WebHook.

Set-up Supervisor.

Environment info

Operating System: Ubuntu 16.04.2 LTS (GNU/Linux 4.4.0-62-generic x86_64) PHP Version: PHP 7.0.13-0ubuntu0.16.04.1 (cli) ( NTS ) MySQL Version: mysql Ver 15.1 Distrib 10.0.29-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2

Logs or other output that would be helpful

==> /tmp/supervisord.log <==
2017-02-16 13:07:57,485 INFO exited: phpci_00 (exit status 1; not expected)
2017-02-16 13:07:59,488 INFO spawned: 'phpci_00' with pid 31698

==> /var/log/phpci-err.log <==
[2017-02-16 13:07:59] WorkerCommand.INFO: Received build #87 from Beanstalkd [] []
[2017-02-16 13:07:59] WorkerCommand.WARNING: Build #87 does not exist in the database. [] []
[2017-02-16 13:07:59] RebuildQueueCommand.NOTICE: E_NOTICE: Undefined variable: build {"code":8,"message":"Undefined variable: build","file":"/path/to/my/virtual/host/phpci/PHPCI/Worker/BuildWorker.php","line":133} []
[2017-02-16 13:07:59] WorkerCommand.NOTICE: E_NOTICE: Undefined variable: build {"code":8,"message":"Undefined variable: build","file":"/path/to/my/virtual/host/phpci/PHPCI/Worker/BuildWorker.php","line":133} []
[2017-02-16 13:07:59] PollCommand.NOTICE: E_NOTICE: Undefined variable: build {"code":8,"message":"Undefined variable: build","file":"/path/to/my/virtual/host/phpci/PHPCI/Worker/BuildWorker.php","line":133} []
[2017-02-16 13:07:59] DaemonCommand.NOTICE: E_NOTICE: Undefined variable: build {"code":8,"message":"Undefined variable: build","file":"/path/to/my/virtual/host/phpci/PHPCI/Worker/BuildWorker.php","line":133} []
[2017-02-16 13:07:59] UpdateCommand.NOTICE: E_NOTICE: Undefined variable: build {"code":8,"message":"Undefined variable: build","file":"/path/to/my/virtual/host/phpci/PHPCI/Worker/BuildWorker.php","line":133} []
[2017-02-16 13:07:59] RunCommand.NOTICE: E_NOTICE: Undefined variable: build {"code":8,"message":"Undefined variable: build","file":"/path/to/my/virtual/host/phpci/PHPCI/Worker/BuildWorker.php","line":133} []
[2017-02-16 13:07:59] WorkerCommand.NOTICE: E_NOTICE: Undefined variable: build {"code":8,"message":"Undefined variable: build","file":"/path/to/my/virtual/host/phpci/PHPCI/Worker/BuildWorker.php","line":148} []
[2017-02-16 13:07:59] PollCommand.NOTICE: E_NOTICE: Undefined variable: build {"code":8,"message":"Undefined variable: build","file":"/path/to/my/virtual/host/phpci/PHPCI/Worker/BuildWorker.php","line":148} []
[2017-02-16 13:07:59] DaemonCommand.NOTICE: E_NOTICE: Undefined variable: build {"code":8,"message":"Undefined variable: build","file":"/path/to/my/virtual/host/phpci/PHPCI/Worker/BuildWorker.php","line":148} []
[2017-02-16 13:07:59] UpdateCommand.NOTICE: E_NOTICE: Undefined variable: build {"code":8,"message":"Undefined variable: build","file":"/path/to/my/virtual/host/phpci/PHPCI/Worker/BuildWorker.php","line":148} []
[2017-02-16 13:07:59] RunCommand.NOTICE: E_NOTICE: Undefined variable: build {"code":8,"message":"Undefined variable: build","file":"/path/to/my/virtual/host/phpci/PHPCI/Worker/BuildWorker.php","line":148} []

  [ErrorException]
  Notice: Undefined variable: build in /path/to/my/virtual/host/phpci/PHPCI/Worker/BuildWorker.php line 148

phpci:worker [--debug]

==> /tmp/supervisord.log <==
2017-02-16 13:07:59,552 INFO exited: phpci_00 (exit status 1; not expected)
2017-02-16 13:08:00,553 INFO gave up: phpci_00 entered FATAL state, too many start retries too quickly

dancryer / PHPCI