[...]

  5400K .......... .......... .......... .......... .......... 99% 85.2M 0s
  5450K .......... .......... .......... .......... ..        100% 73.9M=0.5s
2021-03-21 12:06:34 (10.5 MB/s) - 'libxml2-2.9.10.tar.gz' saved [5624761/5624761]
./builder[2756]: ulimit: exceeds allowable limit
warning: line 61: It's not recommended to have unversioned Obsoletes: Obsoletes:	xml-common
warning: line 153: It's not recommended to have unversioned Obsoletes: Obsoletes:	libxml2-python
Building target platforms: i686-linux
Building for target i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libxml2-2.9.10-3.src.rpm
real 0.47
user 0.41
sys 0.05
exit status 0
Writing pkgrev
builder: SMP make flags are set to -j2
Already up to date.
warning: line 61: It's not recommended to have unversioned Obsoletes: Obsoletes:	xml-common
warning: line 153: It's not recommended to have unversioned Obsoletes: Obsoletes:	libxml2-python
No conditional flags passed
from available:
--with   :	 mem_debug
--without:	 apidocs python2 python3 static_libs tests zlib
Available branches: RA-branch master
libxml2-2.9.10.tar.gz having proper md5sum already exists
./builder[2756]: ulimit: exceeds allowable limit
warning: line 61: It's not recommended to have unversioned Obsoletes: Obsoletes:	xml-common
warning: line 153: It's not recommended to have unversioned Obsoletes: Obsoletes:	libxml2-python
Building target platforms: i686-linux
Building for target i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libxml2-2.9.10-3.src.rpm
real 0.48
user 0.42
sys 0.05
warning: line 61: It's not recommended to have unversioned Obsoletes: Obsoletes:	xml-common
warning: line 153: It's not recommended to have unversioned Obsoletes: Obsoletes:	libxml2-python
Writing git revision for tag tld/libxml2-2.9.10-3
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:2.40s sys:1.53s real:5.74s (faults io:31 non-io:294499)
Files queued for ftp:
   5608546 libxml2-2.9.10-3.src.rpm
       186 libxml2-2.9.10-3.src.rpm.uploadinfo
End-TLD-Builder-Info