[...]

HTTP request sent, awaiting response... 200 OK
Length: 629090 (614K) [application/x-bzip2]
Saving to: 'x264-snapshot-20140824-2245.tar.bz2'
     0K .......... .......... .......... .......... ..........  8%  816K 1s
    50K .......... .......... .......... .......... .......... 16% 1.52M 0s
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   200K .......... .......... .......... .......... .......... 40% 11.6M 0s
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   600K .......... ....                                       100% 1.48M=0.2s
2015-05-28 11:00:32 (2.49 MB/s) - 'x264-snapshot-20140824-2245.tar.bz2' saved [629090/629090]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libx264-0.1.3-1.20140824_2245.6.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at cb93607... - apply x32 patch - rel 6
fatal: HEAD does not point to a branch
No conditional flags passed
from available:
--with   :	 bootstrap
--without:	 asm
Writing git revision for tag auto/ti/libx264-0.1.3-1.20140824_2245.6
On detached HEAD. Use -r BRANCHNAME to override
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.73595
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf x264-snapshot-20140824-2245
Begin-PLD-Builder-Info
Build-Time: user:2.89s sys:1.66s real:17.90s (faults io:99 non-io:250730)
Files queued for ftp:
    637334 libx264-0.1.3-1.20140824_2245.6.src.rpm
       201 libx264-0.1.3-1.20140824_2245.6.src.rpm.uploadinfo
End-PLD-Builder-Info