[...]

 10500K .......... .......... .......... .......... .......... 92% 32.9M 0s
 10550K .......... .......... .......... .......... .......... 92% 27.1M 0s
 10600K .......... .......... .......... .......... .......... 93% 72.7M 0s
 10650K .......... .......... .......... .......... .......... 93% 1.35M 0s
 10700K .......... .......... .......... .......... .......... 93% 19.6M 0s
 10750K .......... .......... .......... .......... .......... 94% 26.5M 0s
 10800K .......... .......... .......... .......... .......... 94% 36.0M 0s
 10850K .......... .......... .......... .......... .......... 95% 38.9M 0s
 10900K .......... .......... .......... .......... .......... 95% 37.3M 0s
 10950K .......... .......... .......... .......... .......... 96% 1.32M 0s
 11000K .......... .......... .......... .......... .......... 96% 28.7M 0s
 11050K .......... .......... .......... .......... .......... 97% 27.9M 0s
 11100K .......... .......... .......... .......... .......... 97% 36.1M 0s
 11150K .......... .......... .......... .......... .......... 97% 37.8M 0s
 11200K .......... .......... .......... .......... .......... 98% 1.32M 0s
 11250K .......... .......... .......... .......... .......... 98% 32.2M 0s
 11300K .......... .......... .......... .......... .......... 99% 34.4M 0s
 11350K .......... .......... .......... .......... .......... 99% 37.9M 0s
 11400K .......... .......... .......... .......... .         100% 38.9M=2.2s
2019-05-29 13:27:52 (5.19 MB/s) - 'cargo-0.26.0-vendor.tar.xz' saved [11715884/11715884]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/cargo-0.26.0-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	 bootstrap
--without:	 tests
Writing git revision for tag auto/ti/cargo-0.26.0-1
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.70282
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf cargo-0.26.0
Begin-TLD-Builder-Info
Build-Time: user:1.59s sys:0.31s real:8.17s (faults io:0 non-io:126583)
Files queued for ftp:
  22253259 cargo-0.26.0-1.src.rpm
       184 cargo-0.26.0-1.src.rpm.uploadinfo
End-TLD-Builder-Info