6 files declare their use of ContainerAware in Zircon Profile 8

BookNavigationCacheContext.php in core/modules/book/src/Cache/BookNavigationCacheContext.php

Contains \Drupal\book\Cache\BookNavigationCacheContext.

Bundle.php in vendor/symfony/http-kernel/Bundle/Bundle.php

CheckProvider.php in core/lib/Drupal/Core/Access/CheckProvider.php

Contains \Drupal\Core\Access\CheckProvider.

ControllerResolverTest.php in core/tests/Drupal/Tests/Core/Controller/ControllerResolverTest.php

Contains \Drupal\Tests\Core\Controller\ControllerResolverTest.

MenuActiveTrailsCacheContext.php in core/lib/Drupal/Core/Cache/Context/MenuActiveTrailsCacheContext.php

Contains \Drupal\Core\Cache\Context\MenuActiveTrailsCacheContext.

StreamWrapperManager.php in core/lib/Drupal/Core/StreamWrapper/StreamWrapperManager.php

Contains \Drupal\Core\StreamWrapper\StreamWrapperManager.