openbabel version 2.3.0+dfsg-1ubuntu1 failed to build on armel

openbabel version 2.3.0+dfsg-1ubuntu1 failed to build on armel
Link to failed build: https://launchpad.net/ubuntu/+source/openbabel/2.3.0+dfsg-1ubuntu1/+build/2517328

Direct link to the build log: https://launchpad.net/ubuntu/+source/openbabel/2.3.0+dfsg-1ubuntu1/+build/2517328/+files/buildlog_ubuntu-oneiric-armel.openbabel_2.3.0%2Bdfsg-1ubuntu1_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 3942 lines into the build log:

98% tests passed, 1 tests failed out of 60

Total Test time (real) = 2523.23 sec

The following tests FAILED:
  54 - pytest_sym (Timeout)
Errors while running CTest
make[2]: *** [test] Error 8
make[2]: Leaving directory `/build/buildd/openbabel-2.3.0+dfsg/build'
dh_auto_test: make -j1 test returned exit code 2
make[1]: *** [override_dh_auto_test] Error 29
make[1]: Leaving directory `/build/buildd/openbabel-2.3.0+dfsg'
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110521-1519
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/openbabel-2.3.0+dfsg