[...]

builder: SMP make flags are set to -j2
Cloning into 'xorg-lib-libXext'...
From git://git.pld-linux.org/packages/xorg-lib-libXext
 * [new ref]         refs/notes/commits -> refs/notes/commits
71ff76901206947dd0744ffce1b70ada2777f231
Already on 'master'
Your branch is up to date with 'origin/master'.
Already up to date.
Available branches: master
Searching for tag auto/ti/xorg-lib-libXext-1.3.4-1...
Searching for tag auto/ti/xorg-lib-libXext-1_3_4-1...
--2019-06-01 23:09:56--  http://distfiles.pld-linux.org/by-md5/f/5/f5b48bb76ba327cd2a8dc7a383532a95/libXext-1.3.4.tar.bz2
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: 389114 (380K) [application/x-bzip2]
Saving to: 'libXext-1.3.4.tar.bz2'
     0K .......... .......... .......... .......... .......... 13%  583K 1s
    50K .......... .......... .......... .......... .......... 26% 1.13M 0s
   100K .......... .......... .......... .......... .......... 39% 73.4M 0s
   150K .......... .......... .......... .......... .......... 52% 26.1M 0s
   200K .......... .......... .......... .......... .......... 65% 1.20M 0s
   250K .......... .......... .......... .......... .......... 78% 72.7M 0s
   300K .......... .......... .......... .......... .......... 92% 74.1M 0s
   350K .......... .......... .........                       100% 25.9M=0.2s
2019-06-01 23:09:56 (2.13 MB/s) - 'libXext-1.3.4.tar.bz2' saved [389114/389114]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/xorg-lib-libXext-1.3.4-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
Writing git revision for tag auto/ti/xorg-lib-libXext-1.3.4-1
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.485
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libXext-1.3.4
Begin-TLD-Builder-Info
Build-Time: user:0.79s sys:0.13s real:3.15s (faults io:0 non-io:93491)
Files queued for ftp:
    394854 xorg-lib-libXext-1.3.4-1.src.rpm
       194 xorg-lib-libXext-1.3.4-1.src.rpm.uploadinfo
End-TLD-Builder-Info