[...]

    line 62: It's not recommended to have unversioned Obsoletes: Obsoletes:	xml-common
real 0.15
user 0.14
sys 0.00
exit status 0
Writing package revision
builder: SMP make flags are set to -j2
Already up to date.
warning: Macro expanded in comment on line 24: %{name}-%{version}.tar.gz
warning: line 62: It's not recommended to have unversioned Obsoletes: Obsoletes:	xml-common
No conditional flags passed
from available:
--with   :	 ftp
--without:	 apidocs legacy python2 python3 static_libs tests zlib
Available branches: RA-branch master
libxml2-2.13.7.tar.xz having proper md5sum already exists
./builder[2768]: ulimit: unlimited exceeds allowable coredump(blocks) limit
Updating .distbcond
warning: Macro expanded in comment on line 24: %{name}-%{version}.tar.gz
warning: line 62: It's not recommended to have unversioned Obsoletes: Obsoletes:	xml-common
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/libxml2-2.13.7-2.src.rpm
RPM build warnings:
    Macro expanded in comment on line 24: %{name}-%{version}.tar.gz
    line 62: It's not recommended to have unversioned Obsoletes: Obsoletes:	xml-common
real 0.18
user 0.16
sys 0.02
warning: Macro expanded in comment on line 24: %{name}-%{version}.tar.gz
warning: line 62: It's not recommended to have unversioned Obsoletes: Obsoletes:	xml-common
Writing git revision for tag tld/libxml2-2.13.7-2
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:2.12s sys:0.66s real:4.76s (faults io:1 non-io:317909)
Files queued for ftp:
   2454541 libxml2-2.13.7-2.src.rpm
       186 libxml2-2.13.7-2.src.rpm.uploadinfo
End-TLD-Builder-Info