[...]

from available:
--with   :	 bootstrap
--without:	 doc
Available branches: master
Searching for tag auto/ti/ninja-1.10.0-1...
Searching for tag auto/ti/ninja-1_10_0-1...
--2020-04-06 18:06:51--  http://distfiles.pld-linux.org/by-md5/c/f/cf1d964113a171da42a8940e7607e71a/ninja-1.10.0.tar.gz
Resolving distfiles.pld-linux.org (distfiles.pld-linux.org)... 193.239.45.41
Connecting to distfiles.pld-linux.org (distfiles.pld-linux.org)|193.239.45.41|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 210313 (205K) [application/x-gzip]
Saving to: 'ninja-1.10.0.tar.gz'
     0K .......... .......... .......... .......... .......... 24% 1.19M 0s
    50K .......... .......... .......... .......... .......... 48% 2.23M 0s
   100K .......... .......... .......... .......... .......... 73%  140M 0s
   150K .......... .......... .......... .......... .......... 97%  162M 0s
   200K .....                                                 100% 71.0M=0.06s
2020-04-06 18:06:51 (3.15 MB/s) - 'ninja-1.10.0.tar.gz' saved [210313/210313]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/ninja-1.10.0-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	 bootstrap
--without:	 doc
Writing git revision for tag auto/ti/ninja-1.10.0-1
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.88547
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf ninja-1.10.0
Begin-TLD-Builder-Info
Build-Time: user:1.38s sys:0.90s real:5.25s (faults io:0 non-io:81288)
Files queued for ftp:
    216405 ninja-1.10.0-1.src.rpm
       184 ninja-1.10.0-1.src.rpm.uploadinfo
End-TLD-Builder-Info