18 files declare their use of ContainerAwareInterface in Zircon Profile 8

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

CacheFactory.php in core/lib/Drupal/Core/Cache/CacheFactory.php

Contains \Drupal\Core\Cache\CacheFactory.

ClassResolver.php in core/lib/Drupal/Core/DependencyInjection/ClassResolver.php

Contains \Drupal\Core\DependencyInjection\ClassResolver.

ContextualController.php in core/modules/contextual/src/ContextualController.php

Contains \Drupal\contextual\ContextualController.

DependencySerializationTest.php in core/tests/Drupal/Tests/Core/DependencyInjection/DependencySerializationTest.php

Contains \Drupal\Tests\Core\DependencyInjection\DependencySerializationTest.

DrupalKernelInterface.php in core/lib/Drupal/Core/DrupalKernelInterface.php

Contains \Drupal\Core\DrupalKernelInterface.

EntityManager.php in core/lib/Drupal/Core/Entity/EntityManager.php

Contains \Drupal\Core\Entity\EntityManager.

EntityTypeManager.php in core/lib/Drupal/Core/Entity/EntityTypeManager.php

Contains \Drupal\Core\Entity\EntityTypeManager.

KernelDestructionSubscriber.php in core/lib/Drupal/Core/EventSubscriber/KernelDestructionSubscriber.php

Contains \Drupal\Core\EventSubscriber\KernelDestructionSubscriber.

LazyRouteEnhancer.php in core/lib/Drupal/Core/Routing/LazyRouteEnhancer.php

Contains \Drupal\Core\Routing\LazyRouteEnhancer.

LazyRouteFilter.php in core/lib/Drupal/Core/Routing/LazyRouteFilter.php

Contains \Drupal\Core\Routing\LazyRouteFilter.

LoggerChannelFactory.php in core/lib/Drupal/Core/Logger/LoggerChannelFactory.php

Contains \Drupal\Core\Logger\LoggerChannelFactory.

QueryFactory.php in core/lib/Drupal/Core/Entity/Query/QueryFactory.php

Contains \Drupal\Core\Entity\Query\QueryFactory.

QueueFactory.php in core/lib/Drupal/Core/Queue/QueueFactory.php

Contains \Drupal\Core\Queue\QueueFactory.

RequestHandler.php in core/modules/rest/src/RequestHandler.php

Contains \Drupal\rest\RequestHandler.

TestClass.php in core/modules/system/tests/modules/service_provider_test/src/TestClass.php

Contains \Drupal\service_provider_test\TestClass.

UpdateRegistryFactory.php in core/lib/Drupal/Core/Update/UpdateRegistryFactory.php

Contains \Drupal\Core\Update\UpdateRegistryFactory.

ZfExtensionManagerSfContainer.php in core/lib/Drupal/Component/Bridge/ZfExtensionManagerSfContainer.php

Contains \Drupal\Component\Bridge\ZfExtensionManagerSfContainer.