ethos version 0.2.2-1.1ubuntu1 failed to build in oneiric

ethos version 0.2.2-1.1ubuntu1 failed to build in oneiric
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110816/+build/2692475

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/2692475/+files/buildlog_ubuntu-oneiric-amd64.ethos_0.2.2-1.1ubuntu1_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 1415 lines into the build log:

ethos-manager.c: In function 'ethos_manager_get_plugin':
ethos-manager.c:985:30: warning: passing argument 2 of 'g_hash_table_lookup' makes pointer from integer without a cast [enabled by default]
/usr/include/glib-2.0/glib/ghash.h:79:13: note: expected 'gconstpointer' but argument is of type 'int'
ethos-manager.c: In function 'ethos_manager_real_initialized':
ethos-manager.c:1021:4: warning: format '%s' expects argument of type 'char *', but argument 4 has type 'int' [-Wformat]
make[4]: *** [libethos_1.0_la-ethos-manager.lo] Error 1
make[4]: Leaving directory `/build/buildd/ethos-0.2.2/ethos'
make[3]: *** [all] Error 2
make[3]: Leaving directory `/build/buildd/ethos-0.2.2/ethos'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/build/buildd/ethos-0.2.2'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/build/buildd/ethos-0.2.2'
make: *** [debian/stamp-makefile-build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110820-0948
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/ethos-0.2.2