fatal: [localhost]: FAILED! => {"changed": true, "cmd": ["/home/isucon/.xbuild/php-install", "5.6.13", "/home/isucon/.local/php", "--", "--with-pear", "--with-openssl"], "delta": "0:00:30.165388", "end": "2017-08-01 21:48:17.316274", "failed": true, "rc": 1, "start": "2017-08-01 21:47:47.150886", "stderr": "", "stdout": "Start to build php 5.6.13 ...\nphp-build failed. see log: /tmp/isucon-php-install.log", "stdout_lines": ["Start to build php 5.6.13 ...", "php-build failed. see log: /tmp/isucon-php-install.log"], "warnings": []}

[Info]: Loaded extension plugin
[Info]: Loaded apc Plugin.
[Info]: Loaded composer Plugin.
[Info]: Loaded github Plugin.
[Info]: Loaded uprofiler Plugin.
[Info]: Loaded xdebug Plugin.
[Info]: Loaded xhprof Plugin.
[Info]: Loaded zendopcache Plugin.
[Info]: php.ini-production gets used as php.ini
[Info]: Building 5.6.13 into /home/isucon/.local/php
[Downloading]: https://secure.php.net/distributions/php-5.6.13.tar.bz2
[Preparing]: /tmp/php-build/source/5.6.13

-----------------
|  BUILD ERROR  |
-----------------

Here are the last 10 lines from the log:

-----------------------------------------
shtool:echo:Warning: unable to determine terminal sequence for bold mode
shtool:echo:Warning: unable to determine terminal sequence for bold mode
configure: WARNING: This bison version is not supported for regeneration of the Zend/PHP parsers (found: 3.0, min: 204, excluded: 3.0).
configure: error: Please reinstall the BZip2 distribution
-----------------------------------------

The full Log is available at '/tmp/php-build.5.6.13.20170801214748.log'.
[Warn]: Aborting build.