[...]

 23950K .......... .......... .......... .......... .......... 96% 11.5M 0s
 24000K .......... .......... .......... .......... .......... 96% 10.8M 0s
 24050K .......... .......... .......... .......... .......... 96% 11.5M 0s
 24100K .......... .......... .......... .......... .......... 97% 10.9M 0s
 24150K .......... .......... .......... .......... .......... 97% 11.5M 0s
 24200K .......... .......... .......... .......... .......... 97% 10.8M 0s
 24250K .......... .......... .......... .......... .......... 97% 11.5M 0s
 24300K .......... .......... .......... .......... .......... 97% 10.9M 0s
 24350K .......... .......... .......... .......... .......... 98% 11.5M 0s
 24400K .......... .......... .......... .......... .......... 98% 11.5M 0s
 24450K .......... .......... .......... .......... .......... 98% 10.8M 0s
 24500K .......... .......... .......... .......... .......... 98% 11.5M 0s
 24550K .......... .......... .......... .......... .......... 98% 11.4M 0s
 24600K .......... .......... .......... .......... .......... 99% 10.9M 0s
 24650K .......... .......... .......... .......... .......... 99% 11.5M 0s
 24700K .......... .......... .......... .......... .......... 99% 10.8M 0s
 24750K .......... .......... .......... .......... .......... 99% 11.5M 0s
 24800K .......... .......... .......... .......... .......... 99% 10.9M 0s
 24850K .......... .......... .......... ........             100% 11.6M=2.4s
2015-02-06 09:51:09 (10.2 MB/s) - 'icu4c-54_1-src.tgz' saved [25485678/25485678]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/icu-54.1-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 static_libs
Writing git revision for tag auto/ti/icu-54.1-1
error: Macro %_builddir has empty body
error: Macro %_builddir has empty body
Executing(--clean):  env -i TMP=/home/users/builder/tmp PATH=/bin:/usr/bin:/usr/sbin:/sbin:/usr/X11R6/bin HOME=/home/users/builder TMPDIR=/home/users/builder/tmp  /bin/sh -e /home/users/builder/tmp/rpm-tmp.60440
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf icu
Begin-PLD-Builder-Info
Build-Time: user:6.83s sys:2.61s real:21.16s (faults io:3 non-io:224062)
Files queued for ftp:
  24292874 icu-54.1-1.src.rpm
       180 icu-54.1-1.src.rpm.uploadinfo
End-PLD-Builder-Info