[...]

Saving to: 'libbluray-1.1.2.tar.bz2'
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2019-08-16 10:09:03 (3.52 MB/s) - 'libbluray-1.1.2.tar.bz2' saved [745779/745779]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libbluray-1.1.2-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at 68b6f16 up to 1.1.2
fatal: HEAD does not point to a branch
No conditional flags passed
from available:
--with   :	
--without:	 java static_libs
Writing git revision for tag auto/ti/libbluray-1.1.2-1
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.60327
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libbluray-1.1.2
Begin-TLD-Builder-Info
Build-Time: user:1.06s sys:0.34s real:3.85s (faults io:19 non-io:93380)
Files queued for ftp:
    752262 libbluray-1.1.2-1.src.rpm
       187 libbluray-1.1.2-1.src.rpm.uploadinfo
End-TLD-Builder-Info