Several test cases fail with errors

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Several test cases fail with errors:

phpunit RemotePharVerifierTest.php
PHPUnit 3.7.13 by Sebastian Bergmann.

...EE.......................EEEEE

Time: 0 seconds, Memory: 6.00Mb

There were 7 errors:

1. PharUtil_RemotePharVerifierTest::testVerifyDoesntCopyToVerifiedDir
   RuntimeException: rmdir(/usr/share/php/tests/PharUtil/test/PharUtil/tmp/tmp/..): Directory not empty

/usr/share/php/PharUtil/RemotePharVerifier.php:182
/usr/share/php/tests/PharUtil/test/PharUtil/RemotePharVerifierTest.php:247
/usr/share/php/tests/PharUtil/test/PharUtil/RemotePharVerifierTest.php:27

2. PharUtil_RemotePharVerifierTest::testVerifyCorrectlyVerifies with data set #0 ('wrongsig.phar')
   RuntimeException: unlink(/usr/share/php/tests/PharUtil/test/PharUtil/tmp/tmp): No such file or directory

/usr/share/php/PharUtil/RemotePharVerifier.php:182
/usr/share/php/tests/PharUtil/test/PharUtil/RemotePharVerifierTest.php:249
/usr/share/php/tests/PharUtil/test/PharUtil/RemotePharVerifierTest.php:17

3. PharUtil_RemotePharVerifierTest::testMovingToVerifiedDirectory
   RuntimeException: rmdir(/usr/share/php/tests/PharUtil/test/PharUtil/tmp/verified/.): Directory not empty

/usr/share/php/PharUtil/RemotePharVerifier.php:182
/usr/share/php/tests/PharUtil/test/PharUtil/RemotePharVerifierTest.php:247
/usr/share/php/tests/PharUtil/test/PharUtil/RemotePharVerifierTest.php:27

4. PharUtil_RemotePharVerifierTest::testInvalidFileWontReachVerifiedDirectory
   RuntimeException: rmdir(/usr/share/php/tests/PharUtil/test/PharUtil/tmp/verified/.): Directory not empty

/usr/share/php/PharUtil/RemotePharVerifier.php:182
/usr/share/php/tests/PharUtil/test/PharUtil/RemotePharVerifierTest.php:247
/usr/share/php/tests/PharUtil/test/PharUtil/RemotePharVerifierTest.php:27

5. PharUtil_RemotePharVerifierTest::testRenamingAFileStillMaintainsValidation
   RuntimeException: rmdir(/usr/share/php/tests/PharUtil/test/PharUtil/tmp/tmp/..): Directory not empty

/usr/share/php/PharUtil/RemotePharVerifier.php:182
/usr/share/php/tests/PharUtil/test/PharUtil/RemotePharVerifierTest.php:247
/usr/share/php/tests/PharUtil/test/PharUtil/RemotePharVerifierTest.php:17

6. PharUtil_RemotePharVerifierTest::testIncludingVerifiedFile
   RuntimeException: rmdir(/usr/share/php/tests/PharUtil/test/PharUtil/tmp/verified/.): Directory not empty

/usr/share/php/PharUtil/RemotePharVerifier.php:182
/usr/share/php/tests/PharUtil/test/PharUtil/RemotePharVerifierTest.php:247
/usr/share/php/tests/PharUtil/test/PharUtil/RemotePharVerifierTest.php:27

7. PharUtil_RemotePharVerifierTest::testVerifyingUsuallyKeepsFilenames
   RuntimeException: rmdir(/usr/share/php/tests/PharUtil/test/PharUtil/tmp/verified/.): Directory not empty

/usr/share/php/PharUtil/RemotePharVerifier.php:182
/usr/share/php/tests/PharUtil/test/PharUtil/RemotePharVerifierTest.php:247
/usr/share/php/tests/PharUtil/test/PharUtil/RemotePharVerifierTest.php:27

FAILURES!
Tests: 33, Assertions: 62, Errors: 7.