symfony/symfony — comment on commit 8cc3158d8901b8aefadde7f24be92fd9ed2b07e7
File: src/Symfony/Bundle/FrameworkBundle/Command/RouterMatchCommand.php line 68
By fabpot:

Doing the matching with the cached router is not possible. But in the dev env, the cache should never be out of date, and in the production env, there is no way to check if it is up to date or not as we don't have the meta file.