8.x-1.x-dev test with PHP 7 & MySQL 5.5, Drupal 8.9.20

exception: [Other] Line 0 of sites/default/files/simpletest/phpunit-1.xml:
PHPUnit Test failed to complete; Error: PHPUnit 6.5.14 by Sebastian Bergmann and contributors.

Testing Drupal\Tests\rpt\Kernel\RptTestUserInput
EEEEE                                                               5 / 5 (100%)

Time: 3.27 seconds, Memory: 4.00MB

There were 5 errors:

1) Drupal\Tests\rpt\Kernel\RptTestUserInput::testUserInputPassword with data set #0 ('fM4izYvqTS')
Error: Call to undefined function Drupal\user\system_time_zones()

/var/www/html/core/modules/user/src/AccountForm.php:296
/var/www/html/core/modules/user/src/RegisterForm.php:54
/var/www/html/core/lib/Drupal/Core/Entity/EntityForm.php:149
/var/www/html/modules/contrib/rpt/tests/src/Kernel/RptTestUserInput.php:59

2) Drupal\Tests\rpt\Kernel\RptTestUserInput::testUserInputPassword with data set #1 ('CposTronfg')
Error: Call to undefined function Drupal\user\system_time_zones()

/var/www/html/core/modules/user/src/AccountForm.php:296
/var/www/html/core/modules/user/src/RegisterForm.php:54
/var/www/html/core/lib/Drupal/Core/Entity/EntityForm.php:149
/var/www/html/modules/contrib/rpt/tests/src/Kernel/RptTestUserInput.php:59

3) Drupal\Tests\rpt\Kernel\RptTestUserInput::testUserInputPassword with data set #2 ('cGZ2oNAAut')
Error: Call to undefined function Drupal\user\system_time_zones()

/var/www/html/core/modules/user/src/AccountForm.php:296
/var/www/html/core/modules/user/src/RegisterForm.php:54
/var/www/html/core/lib/Drupal/Core/Entity/EntityForm.php:149
/var/www/html/modules/contrib/rpt/tests/src/Kernel/RptTestUserInput.php:59

4) Drupal\Tests\rpt\Kernel\RptTestUserInput::testUserInputPassword with data set #3 ('3gbi2ztqfC')
Error: Call to undefined function Drupal\user\system_time_zones()

/var/www/html/core/modules/user/src/AccountForm.php:296
/var/www/html/core/modules/user/src/RegisterForm.php:54
/var/www/html/core/lib/Drupal/Core/Entity/EntityForm.php:149
/var/www/html/modules/contrib/rpt/tests/src/Kernel/RptTestUserInput.php:59

5) Drupal\Tests\rpt\Kernel\RptTestUserInput::testUserInputPassword with data set #4 ('PeaTAwNreX')
Error: Call to undefined function Drupal\user\system_time_zones()

/var/www/html/core/modules/user/src/AccountForm.php:296
/var/www/html/core/modules/user/src/RegisterForm.php:54
/var/www/html/core/lib/Drupal/Core/Entity/EntityForm.php:149
/var/www/html/modules/contrib/rpt/tests/src/Kernel/RptTestUserInput.php:59

ERRORS!
Tests: 5, Assertions: 15, Errors: 5.

fail: [run-tests.sh check] Line 0 of :
FATAL Drupal\Tests\rpt\Kernel\RptTestUserInput: test runner returned a non-zero error code (2).

exception: [Other] Line 0 of sites/default/files/simpletest/phpunit-2.xml:
PHPUnit Test failed to complete; Error: PHPUnit 6.5.14 by Sebastian Bergmann and contributors.

Testing Drupal\Tests\rpt\Kernel\RptTestGenerated
EEEEE                                                               5 / 5 (100%)

Time: 3.26 seconds, Memory: 4.00MB

There were 5 errors:

1) Drupal\Tests\rpt\Kernel\RptTestGenerated::testGeneratedPassword with data set #0 (10)
Error: Call to undefined function Drupal\user\system_time_zones()

/var/www/html/core/modules/user/src/AccountForm.php:296
/var/www/html/core/modules/user/src/RegisterForm.php:54
/var/www/html/core/lib/Drupal/Core/Entity/EntityForm.php:149
/var/www/html/modules/contrib/rpt/tests/src/Kernel/RptTestGenerated.php:64

2) Drupal\Tests\rpt\Kernel\RptTestGenerated::testGeneratedPassword with data set #1 (20)
Error: Call to undefined function Drupal\user\system_time_zones()

/var/www/html/core/modules/user/src/AccountForm.php:296
/var/www/html/core/modules/user/src/RegisterForm.php:54
/var/www/html/core/lib/Drupal/Core/Entity/EntityForm.php:149
/var/www/html/modules/contrib/rpt/tests/src/Kernel/RptTestGenerated.php:64

3) Drupal\Tests\rpt\Kernel\RptTestGenerated::testGeneratedPassword with data set #2 (15)
Error: Call to undefined function Drupal\user\system_time_zones()

/var/www/html/core/modules/user/src/AccountForm.php:296
/var/www/html/core/modules/user/src/RegisterForm.php:54
/var/www/html/core/lib/Drupal/Core/Entity/EntityForm.php:149
/var/www/html/modules/contrib/rpt/tests/src/Kernel/RptTestGenerated.php:64

4) Drupal\Tests\rpt\Kernel\RptTestGenerated::testGeneratedPassword with data set #3 (35)
Error: Call to undefined function Drupal\user\system_time_zones()

/var/www/html/core/modules/user/src/AccountForm.php:296
/var/www/html/core/modules/user/src/RegisterForm.php:54
/var/www/html/core/lib/Drupal/Core/Entity/EntityForm.php:149
/var/www/html/modules/contrib/rpt/tests/src/Kernel/RptTestGenerated.php:64

5) Drupal\Tests\rpt\Kernel\RptTestGenerated::testGeneratedPassword with data set #4 (1)
Error: Call to undefined function Drupal\user\system_time_zones()

/var/www/html/core/modules/user/src/AccountForm.php:296
/var/www/html/core/modules/user/src/RegisterForm.php:54
/var/www/html/core/lib/Drupal/Core/Entity/EntityForm.php:149
/var/www/html/modules/contrib/rpt/tests/src/Kernel/RptTestGenerated.php:64

ERRORS!
Tests: 5, Assertions: 15, Errors: 5.

fail: [run-tests.sh check] Line 0 of :
FATAL Drupal\Tests\rpt\Kernel\RptTestGenerated: test runner returned a non-zero error code (2).