Apparently the error message appears even with --verbosity=error.
- Bug#851551: FutureWarning: CTR mode needs counter par... Antonis Christofides
- Bug#851551: FutureWarning: CTR mode needs counte... Sebastian Ramacher
- Bug#851551: FutureWarning: CTR mode needs counte... Olivier Berger
- Bug#851551: FutureWarning: CTR mode needs co... Antonis Christofides
- Bug#851551: Info received (Bug#851551: F... Antonis Christofides
