[...]

builder: SMP make flags are set to -j2
Cloning into 'tdb'...
267cb02f3b52c0cac3f95cb53c32087121dd9d76
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/tdb-1.3.6-1...
Searching for tag auto/ti/tdb-1_3_6-1...
--2015-08-05 11:14:55--  http://distfiles.pld-linux.org/distfiles/by-md5/d/4/d4df2bcebbcd18463408b5a1ccb5b71b/tdb-1.3.6.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: 490881 (479K) [application/x-gzip]
Saving to: 'tdb-1.3.6.tar.gz'
     0K .......... .......... .......... .......... .......... 10%  899K 0s
    50K .......... .......... .......... .......... .......... 20% 1.67M 0s
   100K .......... .......... .......... .......... .......... 31% 1.73M 0s
   150K .......... .......... .......... .......... .......... 41% 1.81M 0s
   200K .......... .......... .......... .......... .......... 52% 11.5M 0s
   250K .......... .......... .......... .......... .......... 62% 1.97M 0s
   300K .......... .......... .......... .......... .......... 73% 10.9M 0s
   350K .......... .......... .......... .......... .......... 83% 2.08M 0s
   400K .......... .......... .......... .......... .......... 93% 11.5M 0s
   450K .......... .......... .........                       100% 11.4M=0.2s
2015-08-05 11:14:55 (2.30 MB/s) - 'tdb-1.3.6.tar.gz' saved [490881/490881]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/tdb-1.3.6-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
Writing git revision for tag auto/ti/tdb-1.3.6-1
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.32464
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf tdb-1.3.6
Begin-PLD-Builder-Info
Build-Time: user:2.94s sys:1.26s real:6.96s (faults io:10 non-io:190839)
Files queued for ftp:
    496299 tdb-1.3.6-1.src.rpm
       181 tdb-1.3.6-1.src.rpm.uploadinfo
End-PLD-Builder-Info