root@3f6e3073b581:/xxx/zypper-1.12.4# dpkg-buildpackage -us -uc -rfakeroot
dpkg-buildpackage: warning: using a gain-root-command while being root
dpkg-buildpackage: source package zypper
dpkg-buildpackage: source version 1.12.4-1+b1
dpkg-buildpackage: source distribution xenial
dpkg-buildpackage: source changed by Thomas Bechtold <thomasbechtold@jpberlin.de>
dpkg-buildpackage: host architecture amd64
 dpkg-source --before-build zypper-1.12.4
 fakeroot debian/rules clean
I: zypper_1.12.4
test -x debian/rules
rmdir obj-x86_64-linux-gnu
rmdir: failed to remove 'obj-x86_64-linux-gnu': No such file or directory
/usr/share/cdbs/1/rules/buildcore.mk:46: recipe for target 'cleanbuilddir' failed
make: [cleanbuilddir] Error 1 (ignored)
rm -f debian/stamp-makefile-build debian/stamp-makefile-install
/usr/bin/make  -C obj-x86_64-linux-gnu  -k clean
make[1]: *** obj-x86_64-linux-gnu: No such file or directory.  Stop.
/usr/share/cdbs/1/class/makefile.mk:55: recipe for target 'makefile-clean' failed
make: [makefile-clean] Error 2 (ignored)
rm -rf obj-x86_64-linux-gnu
dh_clean 
rm -f debian/copyright_newhints
rm -f debian/cdbs-install-list debian/cdbs-package-list debian/stamp-copyright-check
rm -rf "debian/upstream-cruft"
rm -f debian/stamp-upstream-cruft
 dpkg-source -b zypper-1.12.4
dpkg-source: error: building source for a binary-only release
dpkg-buildpackage: error: dpkg-source -b zypper-1.12.4 gave error exit status 2
root@3f6e3073b581:/xxx/zypper-1.12.4#