[...]

 18550K .......... .......... .......... .......... .......... 95% 72.1M 0s
 18600K .......... .......... .......... .......... .......... 96% 80.1M 0s
 18650K .......... .......... .......... .......... .......... 96% 83.1M 0s
 18700K .......... .......... .......... .......... .......... 96%  374M 0s
 18750K .......... .......... .......... .......... .......... 96% 77.5M 0s
 18800K .......... .......... .......... .......... .......... 97% 80.9M 0s
 18850K .......... .......... .......... .......... .......... 97%  416M 0s
 18900K .......... .......... .......... .......... .......... 97% 78.0M 0s
 18950K .......... .......... .......... .......... .......... 97% 80.6M 0s
 19000K .......... .......... .......... .......... .......... 98% 87.1M 0s
 19050K .......... .......... .......... .......... .......... 98% 72.2M 0s
 19100K .......... .......... .......... .......... .......... 98%  377M 0s
 19150K .......... .......... .......... .......... .......... 98% 81.1M 0s
 19200K .......... .......... .......... .......... .......... 99% 81.1M 0s
 19250K .......... .......... .......... .......... .......... 99% 77.2M 0s
 19300K .......... .......... .......... .......... .......... 99%  372M 0s
 19350K .......... .......... .......... .......... .......... 99% 82.2M 0s
 19400K .......... .......... .....                           100%  444M=0.2s
2018-08-10 22:08:56 (98.2 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.51296
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf gcc-8.2.0
Begin-TLD-Builder-Info
Build-Time: user:3.89s sys:0.43s real:74.82s (faults io:226 non-io:183628)
Files queued for ftp:
  67007804 gcc-8.2.0-1.src.rpm
       181 gcc-8.2.0-1.src.rpm.uploadinfo
End-TLD-Builder-Info