gypsy version 0.8-0ubuntu2 failed to build in oneiric

gypsy version 0.8-0ubuntu2 failed to build in oneiric
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110816/+build/2695504

Details about the rebuild:
http://people.ubuntuwire.org/~wgrant/rebuild-ftbfs-test/test-rebuild-20110816-oneiric.html

Direct link to the build log: https://launchpad.net/ubuntu/+archive/test-rebuild-20110816/+build/2695504/+files/buildlog_ubuntu-oneiric-amd64.gypsy_0.8-0ubuntu2_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 450 lines into the build log:

gypsy-time.c: In function 'get_property':
gypsy-time.c:158:20: error: variable 'priv' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors

make[4]: *** [libgypsy_la-gypsy-time.lo] Error 1
make[4]: Leaving directory `/build/buildd/gypsy-0.8/gypsy'
make[3]: *** [all] Error 2
make[3]: Leaving directory `/build/buildd/gypsy-0.8/gypsy'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/build/buildd/gypsy-0.8'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/build/buildd/gypsy-0.8'
dh_auto_build: make -j1 returned exit code 2
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110821-0354
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/gypsy-0.8