$form = $crawler->selectButton('user.form.save')->form(array(
'new_user[username]' => 'test_user',
'new_user[email]' => 'test@test.io',
$form = $crawler->selectButton('user.form.save')->form(array(
'new_user[username]' => 'test_user',
'new_user[email]' => 'test@test.io',