[...]

builder: SMP make flags are set to -j2
Cloning into 'mm'...
From git://git.pld-linux.org/packages/mm
 * [new ref]         refs/notes/commits -> refs/notes/commits
4ee59c4569d0d3047272ff44287807adaec7aedf
Already on 'master'
Your branch is up-to-date with 'origin/master'.
Already up-to-date.
Available branches: AC-branch RA-branch master
Searching for tag auto/ti/mm-1.4.2-4...
Searching for tag auto/ti/mm-1_4_2-4...
--2015-07-07 15:21:06--  http://distfiles.pld-linux.org/distfiles/by-md5/b/d/bdb34c6c14071364c8f69062d2e8c82b/mm-1.4.2.tar.gz
Resolving distfiles.pld-linux.org (distfiles.pld-linux.org)... 193.239.45.41
Connecting to distfiles.pld-linux.org (distfiles.pld-linux.org)|193.239.45.41|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 344903 (337K) [application/x-gzip]
Saving to: 'mm-1.4.2.tar.gz'
     0K .......... .......... .......... .......... .......... 14%  815K 0s
    50K .......... .......... .......... .......... .......... 29% 1.53M 0s
   100K .......... .......... .......... .......... .......... 44% 1.59M 0s
   150K .......... .......... .......... .......... .......... 59% 1.69M 0s
   200K .......... .......... .......... .......... .......... 74% 11.5M 0s
   250K .......... .......... .......... .......... .......... 89% 1.99M 0s
   300K .......... .......... .......... ......               100% 6.45M=0.2s
2015-07-07 15:21:07 (1.76 MB/s) - 'mm-1.4.2.tar.gz' saved [344903/344903]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/mm-1.4.2-4.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
Writing git revision for tag auto/ti/mm-1.4.2-4
error: Macro %_builddir has empty body
error: Macro %_builddir has empty body
Executing(--clean): env -i TMP=/home/users/builder/tmp HOME=/home/users/builder PATH=/bin:/usr/bin:/usr/sbin:/sbin:/usr/X11R6/bin TMPDIR=/home/users/builder/tmp  /bin/sh -e /home/users/builder/tmp/rpm-tmp.85286
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf mm-1.4.2
Begin-PLD-Builder-Info
Build-Time: user:2.63s sys:1.26s real:12.11s (faults io:54 non-io:194415)
Files queued for ftp:
    350116 mm-1.4.2-4.src.rpm
       180 mm-1.4.2-4.src.rpm.uploadinfo
End-PLD-Builder-Info