php-vcr: php-vcr unit test fail on Windows 7

Trying to run unit test on latest master branch fails. Could it be that PHP-VCR is overwriting its own class?

On windows 7, with PHP 5.6 RC3

Khalifah@KHALIFAH-PC /e/Khalifah/Projects/php-vcr (master)
$ phpunit
PHPUnit 3.7.37 by Sebastian Bergmann.

Configuration read from E:\Khalifah\Projects\php-vcr\phpunit.xml

...............................................................  63 / 198 ( 31%)
...............
Fatal error: Class 'VCR\Util\SoapClient' not found in E:\Khalifah\Projects\php-vcr\src\VCR\Util\SoapClient.php on line 12

Call Stack:
    0.0000     124248   1. {main}() C:\Users\Khalifah\vendor\phpunit\phpunit\phpunit:0
    0.0040     326056   2. PHPUnit_TextUI_Command::main() C:\Users\Khalifah\vendor\phpunit\phpunit\phpunit:54
    0.0040     326384   3. PHPUnit_TextUI_Command->run() C:\Users\Khalifah\vendor\phpunit\phpunit\src\TextUI\Command.php:138
    0.7470    3746792   4. PHPUnit_TextUI_TestRunner->doRun() C:\Users\Khalifah\vendor\phpunit\phpunit\src\TextUI\Command.php:186
    0.8020    3926400   5. PHPUnit_Framework_TestSuite->run() E:\Khalifah\Projects\php-vcr\vendor\phpunit\phpunit\PHPUnit\TextUI\TestRunner.php:350
    1.7681    6218960   6. PHPUnit_Framework_TestSuite->run() E:\Khalifah\Projects\php-vcr\vendor\phpunit\phpunit\PHPUnit\Framework\TestSuite.php:709
    1.7681    6219440   7. PHPUnit_Framework_TestSuite->runTest() E:\Khalifah\Projects\php-vcr\vendor\phpunit\phpunit\PHPUnit\Framework\TestSuite.php:
749
    1.7681    6219792   8. PHPUnit_Framework_TestCase->run() E:\Khalifah\Projects\php-vcr\vendor\phpunit\phpunit\PHPUnit\Framework\TestSuite.php:779
    1.7691    6220040   9. PHPUnit_Framework_TestResult->run() E:\Khalifah\Projects\php-vcr\vendor\phpunit\phpunit\PHPUnit\Framework\TestCase.php:783
    1.7691    6221264  10. PHPUnit_Framework_TestCase->runBare() E:\Khalifah\Projects\php-vcr\vendor\phpunit\phpunit\PHPUnit\Framework\TestResult.php:
648
    1.7691    6255192  11. PHPUnit_Framework_TestCase->runTest() E:\Khalifah\Projects\php-vcr\vendor\phpunit\phpunit\PHPUnit\Framework\TestCase.php:83
8
    1.7691    6255720  12. ReflectionMethod->invokeArgs() E:\Khalifah\Projects\php-vcr\vendor\phpunit\phpunit\PHPUnit\Framework\TestCase.php:988
    1.7691    6255856  13. VCR\LibraryHooks\SoapHookTest->testShouldInterceptCallWhenEnabled() E:\Khalifah\Projects\php-vcr\vendor\phpunit\phpunit\PHP
Unit\Framework\TestCase.php:988
    1.7701    6256616  14. spl_autoload_call() E:\Khalifah\Projects\php-vcr\vendor\phpunit\phpunit\PHPUnit\Framework\TestCase.php:34
    1.7701    6256648  15. Composer\Autoload\ClassLoader->loadClass() E:\Khalifah\Projects\php-vcr\vendor\phpunit\phpunit\PHPUnit\Framework\TestCase.p
hp:0
    1.7701    6256984  16. Composer\Autoload\includeFile() C:\Users\Khalifah\vendor\composer\ClassLoader.php:274
    1.7731    6265192  17. include('E:\Khalifah\Projects\php-vcr\src\VCR\Util\SoapClient.php') C:\Users\Khalifah\vendor\composer\ClassLoader.php:382