libqt4pas version 2.1Qt4.5.3-5 failed to build in oneiric

libqt4pas version 2.1Qt4.5.3-5 failed to build in oneiric
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110816/+build/2702672

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/2702672/+files/buildlog_ubuntu-oneiric-amd64.libqt4pas_2.1Qt4.5.3-5_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 940 lines into the build log:

install /build/buildd/libqt4pas-2.1Qt4.5.3/qt4.pas /build/buildd/libqt4pas-2.1Qt4.5.3/debian/tmp/usr/share/pascal/qt4/
for type in pas p txt ; do find /build/buildd/libqt4pas-2.1Qt4.5.3/debian/tmp/usr/share/ -type f -name "*$type" -exec chmod -x '{}' \; ; done
dh_auto_install --destdir=/build/buildd/libqt4pas-2.1Qt4.5.3/debian/tmp
make[2]: Entering directory `/build/buildd/libqt4pas-2.1Qt4.5.3'
install -m 755 -p "libQt4Pas.so.5.2.1" "/build/buildd/libqt4pas-2.1Qt4.5.3/debian/tmp/usr/lib/x86_64-linux-gnu/libQt4Pas.so.5.2.1"
: --strip-unneeded "/build/buildd/libqt4pas-2.1Qt4.5.3/debian/tmp/usr/lib/x86_64-linux-gnu/libQt4Pas.so.5.2.1"
ln -f -s "libQt4Pas.so.5.2.1" "/build/buildd/libqt4pas-2.1Qt4.5.3/debian/tmp/usr/lib/x86_64-linux-gnu/libQt4Pas.so"
ln -f -s "libQt4Pas.so.5.2.1" "/build/buildd/libqt4pas-2.1Qt4.5.3/debian/tmp/usr/lib/x86_64-linux-gnu/libQt4Pas.so.5"
ln -f -s "libQt4Pas.so.5.2.1" "/build/buildd/libqt4pas-2.1Qt4.5.3/debian/tmp/usr/lib/x86_64-linux-gnu/libQt4Pas.so.5.2"
make[2]: Leaving directory `/build/buildd/libqt4pas-2.1Qt4.5.3'
make[1]: Leaving directory `/build/buildd/libqt4pas-2.1Qt4.5.3'
   dh_install -a -O--parallel
dh_install: libqt4pas5 missing files (usr/lib/libQt4Pas.so.*), aborting
make: *** [binary-arch] Error 255
dpkg-buildpackage: error: /usr/bin/fakeroot debian/rules binary-arch gave error exit status 2
******************************************************************************
Build finished at 20110821-2249
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/libqt4pas-2.1Qt4.5.3