When run:
php ./vendor/bin/phpunit --configuration=phpunit.xml.dist
Get following output:
PHPUnit 4.5.0 by Sebastian Bergmann and contributors.
Configuration read from /var/www/xdebug_realloc_error/phpunit.xml.dist
Deprecated configuration setting "strict" used
*** glibc detected *** php: realloc(): invalid next size: 0x0000000002dc3130 ***