Manage display form cannot be accessed

[colorfield]

The Manage display form throws "Drupal\Component\Plugin\Exception\PluginException: The plugin (integer) did not specify an instance class. in Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass() (line 79 of /var/www/drupal82/core/lib/Drupal/Component/Plugin/Factory/DefaultFactory.php)."

[colorfield]

This was caused by the hook_field_formatter_info_alter() implementation.

function serial_field_formatter_info_alter(array &$info) {
  $info['integer']['field_types'][] = SerialStorageInterface::SERIAL_FIELD_TYPE;
}

where integer is now replaced by text_default.