[...]

 18550K .......... .......... .......... .......... .......... 95% 84.3M 0s
 18600K .......... .......... .......... .......... .......... 96% 82.0M 0s
 18650K .......... .......... .......... .......... .......... 96%  329M 0s
 18700K .......... .......... .......... .......... .......... 96% 78.1M 0s
 18750K .......... .......... .......... .......... .......... 96% 76.7M 0s
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 18850K .......... .......... .......... .......... .......... 97% 77.6M 0s
 18900K .......... .......... .......... .......... .......... 97% 83.4M 0s
 18950K .......... .......... .......... .......... .......... 97% 79.5M 0s
 19000K .......... .......... .......... .......... .......... 98% 82.1M 0s
 19050K .......... .......... .......... .......... .......... 98%  364M 0s
 19100K .......... .......... .......... .......... .......... 98% 77.8M 0s
 19150K .......... .......... .......... .......... .......... 98% 83.1M 0s
 19200K .......... .......... .......... .......... .......... 99% 83.0M 0s
 19250K .......... .......... .......... .......... .......... 99%  325M 0s
 19300K .......... .......... .......... .......... .......... 99% 80.5M 0s
 19350K .......... .......... .......... .......... .......... 99% 76.9M 0s
 19400K .......... .......... .....                           100%  258M=0.2s
2018-08-10 23:03:03 (95.7 MB/s) - 'gcc-branch.diff' saved [19891510/19891510]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/gcc-8.2.0-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at c883bf0 - df
fatal: HEAD does not point to a branch
No conditional flags passed
from available:
--with   :	 gcc_libffi symvers tests
--without:	 ada apidocs bootstrap cxx fortran go gomp multilib objc objcxx profiling python
Writing git revision for tag auto/ti/gcc-8.2.0-1
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.39907
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf gcc-8.2.0
Begin-TLD-Builder-Info
Build-Time: user:3.82s sys:0.41s real:72.24s (faults io:0 non-io:182996)
Files queued for ftp:
  67007799 gcc-8.2.0-1.src.rpm
       181 gcc-8.2.0-1.src.rpm.uploadinfo
End-TLD-Builder-Info