[...]

ser 0.16
sys 0.02
exit status 0
Writing package revision
builder: SMP make flags are set to -j2
Already up to date.
Available branches: AC-branch master
po4a-0.70.tar.gz having proper md5sum already exists
./builder[2756]: ulimit: unlimited exceeds allowable coredump(blocks) limit
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/po4a-0.70-2.src.rpm
real 0.16
user 0.15
sys 0.01
Writing git revision for tag tld/po4a-0.70-2
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:1.12s sys:0.33s real:3.51s (faults io:3 non-io:146559)
Files queued for ftp:
   4842779 po4a-0.70-2.src.rpm
       181 po4a-0.70-2.src.rpm.uploadinfo
End-TLD-Builder-Info