runc checkpoint: destroy only on success #3655
Merged
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If checkpointing has failed, the container is kept running. We do not want to, and we can't remove it in such case.
Do not try to remove the container if there's an error from checkpointing.
This avoids an unclear error message from destroy() saying "container still running" or "container paused".
While at it, avoid using defer since it does not make a lot of sense here.
Fixes: #3577