[...]

Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/mailx-12.4-8.src.rpm
RPM build warnings:
    line 24: It's not recommended to have unversioned Obsoletes: Obsoletes:	nail
    line 25: It's not recommended to have unversioned Obsoletes: Obsoletes:	nail-mail
real 0.03
user 0.01
sys 0.01
exit status 0
Writing package revision
builder: SMP make flags are set to -j2
Already up to date.
warning: line 24: It's not recommended to have unversioned Obsoletes: Obsoletes:	nail
warning: line 25: It's not recommended to have unversioned Obsoletes: Obsoletes:	nail-mail
No conditional flags passed
from available:
--with   :	
--without:	 kerberos5
Available branches: AC-branch RA-branch master
mailx-12.4.tar.bz2 having proper md5sum already exists
./builder[2756]: ulimit: unlimited exceeds allowable coredump(blocks) limit
warning: line 24: It's not recommended to have unversioned Obsoletes: Obsoletes:	nail
warning: line 25: It's not recommended to have unversioned Obsoletes: Obsoletes:	nail-mail
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/mailx-12.4-8.src.rpm
RPM build warnings:
    line 24: It's not recommended to have unversioned Obsoletes: Obsoletes:	nail
    line 25: It's not recommended to have unversioned Obsoletes: Obsoletes:	nail-mail
real 0.03
user 0.03
sys 0.00
warning: line 24: It's not recommended to have unversioned Obsoletes: Obsoletes:	nail
warning: line 25: It's not recommended to have unversioned Obsoletes: Obsoletes:	nail-mail
Writing git revision for tag tld/mailx-12.4-8
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:1.38s sys:0.39s real:3.53s (faults io:2 non-io:302333)
Files queued for ftp:
    287872 mailx-12.4-8.src.rpm
       182 mailx-12.4-8.src.rpm.uploadinfo
End-TLD-Builder-Info