apt-move archive not being picked up by apt

["Chris Stiles" <chris.stiles@gmail.com>]

Hi --

I have the following cron job that runs nightly :

/usr/bin/apt-get update &&
/usr/bin/apt-get autoclean &&
/usr/bin/apt-get -dy dist-upgrade &&
/usr/bin/apt-move update &&
/usr/bin/apt-get update

This downloads updates currently needed, and puts them into an
apt-move style archive in /usr/mirror, which is then picked up like so
in sources.list:

deb file:/usr/mirror/debian testing main

However, even if a file exists in /usr/mirror, apt-upgrade will still
tryn and download it.

What is going wrong?

--
regards, chris