[Wolves] what does this mean?

[dick_turpin]

B wrote:
> Can anyone tell me what this message means?
>
>
> Subject: Anacron job 'cron.daily' on barbelith
>
> /etc/cron.daily/apt:
> Segmentation fault
> Segmentation fault
> Segmentation fault
> /etc/cron.daily/apt: could not lock the APT cache
> run-parts: /etc/cron.daily/apt exited with return code 1
>
> My server emailed it to itself:)
>   
Something else was using APT cache?