[...]

 18550K .......... .......... .......... .......... .......... 95%  389M 0s
 18600K .......... .......... .......... .......... .......... 96% 75.3M 0s
 18650K .......... .......... .......... .......... .......... 96% 85.0M 0s
 18700K .......... .......... .......... .......... .......... 96% 75.1M 0s
 18750K .......... .......... .......... .......... .......... 96%  381M 0s
 18800K .......... .......... .......... .......... .......... 97% 82.0M 0s
 18850K .......... .......... .......... .......... .......... 97% 79.4M 0s
 18900K .......... .......... .......... .......... .......... 97% 71.4M 0s
 18950K .......... .......... .......... .......... .......... 97%  368M 0s
 19000K .......... .......... .......... .......... .......... 98% 93.5M 0s
 19050K .......... .......... .......... .......... .......... 98% 79.1M 0s
 19100K .......... .......... .......... .......... .......... 98% 75.3M 0s
 19150K .......... .......... .......... .......... .......... 98%  444M 0s
 19200K .......... .......... .......... .......... .......... 99% 76.3M 0s
 19250K .......... .......... .......... .......... .......... 99% 83.4M 0s
 19300K .......... .......... .......... .......... .......... 99% 77.7M 0s
 19350K .......... .......... .......... .......... .......... 99%  453M 0s
 19400K .......... .......... .....                           100% 46.0M=0.2s
2018-08-10 20:40:39 (98.4 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.3288
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf gcc-8.2.0
Begin-TLD-Builder-Info
Build-Time: user:3.78s sys:0.41s real:72.70s (faults io:12 non-io:183537)
Files queued for ftp:
  67007800 gcc-8.2.0-1.src.rpm
       181 gcc-8.2.0-1.src.rpm.uploadinfo
End-TLD-Builder-Info