How to find out which test failed if the logs and console are empty?

Question

PHPUnit

Due to php limitations for testing objects with dependencies, Symfony UploadedFile had to be disabled processIsolation=falsein phpunit 7+, now during the tests some tests sometimes fail without logs in the console or var/logs.
How would you fix this? Are there any other settings for Phpunit?'
Example

[email protected]:/var/www/test$ phpunit
PHPUnit 7.3.3 by Sebastian Bergmann and contributors.

Runtime:       PHP 7.2.12-1+0~20181112102304.11+stretch~1.gbp55f215
Configuration: /var/www/test/phpunit.xml

[email protected]:/var/www/test$

Of course, you can test each file in turn, but there are only 100+ of them.
In theory, the tests go from the top folder to the bottom recursively, you can roughly determine in which folder the test falls and test classes from that folder, this is also a long time.
Number of tests 500+

<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="./vendor/phpunit/phpunit/phpunit.xsd"
         backupGlobals="false"
         colors="true"
         bootstrap="./vendor/autoload.php"
         backupStaticAttributes="false"
         convertErrorsToExceptions="true"
         convertNoticesToExceptions="true"
         convertWarningsToExceptions="true"
         beStrictAboutTestsThatDoNotTestAnything="true"
         beStrictAboutCoversAnnotation="true"
         beStrictAboutOutputDuringTests="true"
         verbose="true"
         beStrictAboutChangesToGlobalState="true"
         beStrictAboutTodoAnnotatedTests="true"
         stopOnError="false"
         stopOnIncomplete="false"
         stopOnSkipped="false"
         stopOnRisky="false"
         processIsolation="false"
         stopOnFailure="false">

And yet, processIsolation="false"tests can hang.