clutter-1.0 version 1.6.10-3ubuntu1 failed to build on armel

clutter-1.0 version 1.6.10-3ubuntu1 failed to build on armel
Link to failed build: https://launchpad.net/ubuntu/+source/clutter-1.0/1.6.10-3ubuntu1/+buildjob/2419477

Direct link to the build log: https://launchpad.net/ubuntu/+source/clutter-1.0/1.6.10-3ubuntu1/+buildjob/2419477/+files/buildlog_ubuntu-natty-armel.clutter-1.0_1.6.10-3ubuntu1_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 5425 lines into the build log:

dpkg-gensymbols: warning: debian/libclutter-1.0-0/DEBIAN/symbols doesn't match completely debian/libclutter-1.0-0.symbols.armel
--- debian/libclutter-1.0-0.symbols.armel (libclutter-1.0-0_1.6.10-3ubuntu1_armel)
+++ dpkg-gensymbolsClUpfs 2011-03-31 22:56:07.000000000 +0000
@@ -430,7 +430,7 @@
  clutter_click_action_get_type@Base 1.4.0
  clutter_click_action_new@Base 1.4.0
  clutter_click_action_release@Base 1.4.0
- clutter_clone_get_paint_volume@Base 1.5.12
+#MISSING: 1.6.10-3ubuntu1# clutter_clone_get_paint_volume@Base 1.5.12
  clutter_clone_get_source@Base 1.0.0
  clutter_clone_get_type@Base 1.0.0
  clutter_clone_new@Base 1.0.0
dh_makeshlibs: dpkg-gensymbols -plibclutter-1.0-0 -Idebian/libclutter-1.0-0.symbols.armel -Pdebian/libclutter-1.0-0 -c4 returned exit code 1
make: *** [binary-fixup/libclutter-1.0-0] Error 1
dpkg-buildpackage: error: /usr/bin/fakeroot debian/rules binary-arch gave error exit status 2
******************************************************************************
Build finished at 20110331-2256
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/clutter-1.0-1.6.10