The builds of python-ltfatpy for s390x and the non-release
architectures ppc64 and sparc64 failed with

E   ValueError: Little-endian buffer not supported on big-endian compiler

You can find the full s390x log at

https://buildd.debian.org/status/fetch.php?pkg=python-ltfatpy&arch=s390x&ver=1.0.8-1&stamp=1492853102&raw=0#

The builds for the big-endian non-release architectures m68k and
powerpcspe both nominally succeeded, but AFAICT only because they
skipped the test suite altogether for some reason.

Could you please take a look?

Thanks!

Thanks for breaking this issues down. Forwarding upstream.