[...]

builder: SMP make flags are set to -j2
Cloning into 'upower'...
7a345ab6e3ec9000fe5a7b7a623324cf4f3cc371
Already on 'master'
Your branch is up-to-date with 'origin/master'.
Already up-to-date.
Available branches: master
Searching for tag auto/ti/upower-0.99.2-2...
Searching for tag auto/ti/upower-0_99_2-2...
--2015-05-14 08:47:14--  http://df.tld-linux.org/distfiles/by-md5/9/3/93119fcb617a75ff9cd44999179ec217/upower-0.99.2.tar.xz
Resolving df.tld-linux.org (df.tld-linux.org)... 46.4.78.55
Connecting to df.tld-linux.org (df.tld-linux.org)|46.4.78.55|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 428668 (419K) [application/x-xz]
Saving to: 'upower-0.99.2.tar.xz'
     0K .......... .......... .......... .......... .......... 11% 1.78M 0s
    50K .......... .......... .......... .......... .......... 23% 3.80M 0s
   100K .......... .......... .......... .......... .......... 35% 10.7M 0s
   150K .......... .......... .......... .......... .......... 47% 11.4M 0s
   200K .......... .......... .......... .......... .......... 59% 5.99M 0s
   250K .......... .......... .......... .......... .......... 71% 10.8M 0s
   300K .......... .......... .......... .......... .......... 83% 11.5M 0s
   350K .......... .......... .......... .......... .......... 95% 11.3M 0s
   400K .......... ........                                   100% 11.1M=0.07s
2015-05-14 08:47:14 (5.67 MB/s) - 'upower-0.99.2.tar.xz' saved [428668/428668]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/upower-0.99.2-2.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
Writing git revision for tag auto/ti/upower-0.99.2-2
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.47374
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf upower-0.99.2
Begin-PLD-Builder-Info
Build-Time: user:3.07s sys:1.33s real:5.14s (faults io:0 non-io:166408)
Files queued for ftp:
    434196 upower-0.99.2-2.src.rpm
       185 upower-0.99.2-2.src.rpm.uploadinfo
End-PLD-Builder-Info