[...]

./builder[2756]: ulimit: exceeds allowable limit
warning: Macro expanded in comment on line 1: %{_bindir}/event_rpcgen.py - rename to event_rpcgen?
warning: line 26: It's not recommended to have unversioned Obsoletes: Obsoletes:	libevent-dietlibc
Building target platforms: i686-linux
Building for target i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libevent-2.1.12-2.src.rpm
real 0.11
user 0.09
sys 0.01
exit status 0
Writing package revision
builder: SMP make flags are set to -j2
Already up to date.
warning: Macro expanded in comment on line 1: %{_bindir}/event_rpcgen.py - rename to event_rpcgen?
warning: line 26: It's not recommended to have unversioned Obsoletes: Obsoletes:	libevent-dietlibc
No conditional flags passed
from available:
--with   :	
--without:	 static_libs
Available branches: AC-branch japhy-libevent1_on_th master
libevent-2.1.12-stable.tar.gz having proper md5sum already exists
./builder[2756]: ulimit: exceeds allowable limit
warning: Macro expanded in comment on line 1: %{_bindir}/event_rpcgen.py - rename to event_rpcgen?
warning: line 26: It's not recommended to have unversioned Obsoletes: Obsoletes:	libevent-dietlibc
Building target platforms: i686-linux
Building for target i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libevent-2.1.12-2.src.rpm
real 0.11
user 0.10
sys 0.01
warning: Macro expanded in comment on line 1: %{_bindir}/event_rpcgen.py - rename to event_rpcgen?
warning: line 26: It's not recommended to have unversioned Obsoletes: Obsoletes:	libevent-dietlibc
Writing git revision for tag tld/libevent-2.1.12-2
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:1.04s sys:0.74s real:2.97s (faults io:0 non-io:145989)
Files queued for ftp:
   1112713 libevent-2.1.12-2.src.rpm
       187 libevent-2.1.12-2.src.rpm.uploadinfo
End-TLD-Builder-Info