rebuilderd: unexpected error while rebuilding package: Failed to download original package from "http://deb.debian.org/debian/pool/main/s/shntool/shntool_3.0.10+git20130108.4ca41f4-1.1_armel.deb": HTTP status client error (404 Not Found) for url (http://deb.debian.org/debian/pool/main/s/shntool/shntool_3.0.10+git20130108.4ca41f4-1.1_armel.deb)