Build failing on Debian 7 and Debian 8 i386

[matricali]

On Debian Wheezy

W: Failed to fetch http://deb.debian.org/debian/dists/wheezy/main/binary-amd64/Packages  404  Not Found
W: Failed to fetch http://deb.debian.org/debian/dists/wheezy-updates/main/binary-amd64/Packages  404  Not Found
W: Failed to fetch http://security.debian.org/dists/wheezy/updates/main/binary-amd64/Packages  404  Not Found
W: Failed to fetch http://ftp.debian.org/debian/dists/wheezy-backports/main/source/Sources  404  Not Found
W: Failed to fetch http://ftp.debian.org/debian/dists/wheezy-backports/main/binary-amd64/Packages  404  Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
make: *** [/build/cbrutekrag_0.4.6-1_amd64.changes] Error 100

On Debian Jessie arch=i386

W: There is no public key available for the following key IDs:
AA8E81B4331F7F50
W: Failed to fetch http://ftp.debian.org/debian/dists/jessie-backports/main/source/Sources  404  Not Found
W: Failed to fetch http://ftp.debian.org/debian/dists/jessie-backports/main/binary-i386/Packages  404  Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
/pack//deb.mk:115: recipe for target '/build/cbrutekrag_0.4.6-1_i386.changes' failed
make: *** [/build/cbrutekrag_0.4.6-1_i386.changes] Error 100

[matricali]

Related to packpack/packpack#112 and packpack/packpack-docker-images#40

[matricali]

I have momentarily added the OS distributions that fail to the "allow_failures" list in .travis.yml