[Dovecot] error in 1.1.2

[Cor Bosman]

> Since it's copying related, try running two instances of imaptest where
> one copies messages and another runs on the destination box:
> 
> ./imaptest logout=0 copy=100 copybox=Trash
> ./imaptest box=Trash append=0

It took about 1.5 hours, but I got 1..running the above 2 tests at the same
time.

Sep 10 22:06:41 imap dovecot: IMAP(scorpio): rename(/var/spool/mail/dovecot-control/indexes/s/sc/scorpio/.Trash/dovecot.index.cache.lock, /var/spool/mail/dovecot-control/indexes/s/sc/scorpio/.Trash/dovecot.index.cache) failed: No such file or directory
Sep 10 22:06:41 imap dovecot: IMAP(scorpio): file_dotlock_replace() failed with index cache file /var/spool/mail/dovecot-control/indexes/s/sc/scorpio/.Trash/dovecot.index.cache: No such file or directory

Thats on an unpatched server.. default 1.1.2 code. It seems to be a very
rare occurance.

Cor