Segmentation fault with Xdebug

segmentation-fault.php

<?php

# src/app.php
require_once __DIR__ . "/../vendor/autoload.php";

$app = new Silex\Application();
$app->register(new \Silex\Provider\MonologServiceProvider());

$app['monolog'] = $app->share($app->extend("monolog", function($monolog, $app) {
  // Code
}));

$app->error(function (\Exception $exception) use ($app) {
  // Code
});

return $app;


# tests/Test.php
class Test extends \Silex\WebTestCase
{
  public function createApplication()
  {
    return require __DIR__ . "/../src/app.php";
  }

  public function testHealthPage()
  {
    $client = $this->createClient();
    $client->request("GET", "/");
  }
}


# composer.json
{
  "require": {
    "silex/silex": "~1.2",
    "monolog/monolog": "~1.12.0",
    "symfony/browser-kit": "~2.6.4",
    "phpunit/phpunit": "~4.4.5"
  }
}