Comment 3 for bug 628414

Thanks for the explanation Loïc. I have no idea either :(

It looks like it's happening because you're depending on:
deb http://ppa.launchpad.net/ubuntu-toolchain-r/ppa/ubuntu maverick main
in the sources.list.

A couple of things come to mind:
1. Change the buildd code so that it downloads the keys for all relevant PPAs before starting.
2. You change your package to do it.

Both have heavy cons:
1. This will massively increase the load on the keyserver, which is already under tremendous strain (so I am told).
2. While this works for PPA packages, it's pretty nasty for rebuilds.

More ideas would be good here.