Slow tests fail on 3.1 and 3.2

E:\phpBB\Ascraeus>phpBB\vendor\bin\phpunit.bat --group slow

PHPUnit 4.1.0 by Sebastian Bergmann.

Configuration read from E:\phpBB\Ascraeus\phpunit.xml.dist

Fatal error: Call to a member function get() on null in E:\phpBB\Ascraeus\phpBB\includes\functions_admin.php on line 3008

Call Stack:

    0.0000     122216   1. {main}() E:\phpBB\Ascraeus\phpBB\vendor\phpunit\phpunit\phpunit:0

    0.0060     543760   2. PHPUnit_TextUI_Command::main() E:\phpBB\Ascraeus\phpBB\vendor\phpunit\phpunit\phpunit:55

    0.0060     547544   3. PHPUnit_TextUI_Command->run() E:\phpBB\Ascraeus\phpBB\vendor\phpunit\phpunit\src\TextUI\Command.php:132

    6.3744   56688416   4. PHPUnit_TextUI_TestRunner->doRun() E:\phpBB\Ascraeus\phpBB\vendor\phpunit\phpunit\src\TextUI\Command.php:179

    6.8064   56963352   5. PHPUnit_Framework_TestSuite->run() E:\phpBB\Ascraeus\phpBB\vendor\phpunit\phpunit\src\TextUI\TestRunner.php:426

    7.5484   56965520   6. PHPUnit_Framework_TestSuite->run() E:\phpBB\Ascraeus\phpBB\vendor\phpunit\phpunit\src\Framework\TestSuite.php:675

    8.0365   56963320   7. PHPUnit_Framework_TestSuite->run() E:\phpBB\Ascraeus\phpBB\vendor\phpunit\phpunit\src\Framework\TestSuite.php:675

    8.0395   56965840   8. PHPUnit_Framework_TestCase->run() E:\phpBB\Ascraeus\phpBB\vendor\phpunit\phpunit\src\Framework\TestSuite.php:675

    8.0395   56966544   9. PHPUnit_Framework_TestResult->run() E:\phpBB\Ascraeus\phpBB\vendor\phpunit\phpunit\src\Framework\TestCase.php:753

    8.0555   57004736  10. PHPUnit_Framework_TestCase->runBare() E:\phpBB\Ascraeus\phpBB\vendor\phpunit\phpunit\src\Framework\TestResult.php:686

    8.0875   57280720  11. PHPUnit_Framework_TestCase->runTest() E:\phpBB\Ascraeus\phpBB\vendor\phpunit\phpunit\src\Framework\TestCase.php:817

    8.0875   57281232  12. ReflectionMethod->invokeArgs() E:\phpBB\Ascraeus\phpBB\vendor\phpunit\phpunit\src\Framework\TestCase.php:951

    8.0875   57281360  13. phpbb_functions_get_remote_file->test_version_phpbb_com() E:\phpBB\Ascraeus\phpBB\vendor\phpunit\phpunit\src\Framework\TestCase.php:951

    8.1285   57281752  14. get_remote_file() E:\phpBB\Ascraeus\tests\functions\get_remote_file_test.php:36