[...]

./builder[2768]: ulimit: unlimited exceeds allowable coredump(blocks) limit
Updating .distbcond
warning: %patchN is deprecated (2 usages found), use %patch N (or %patch -P N)
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/qt5-qtlocation-5.15.16-2.src.rpm
RPM build warnings:
    %patchN is deprecated (2 usages found), use %patch N (or %patch -P N)
real 0.48
user 0.40
sys 0.06
exit status 0
Writing package revision
builder: SMP make flags are set to -j2
Already up to date.
warning: %patchN is deprecated (2 usages found), use %patch N (or %patch -P N)
No conditional flags passed
from available:
--with   :	 bootstrap
--without:	 doc gypsy qm
Available branches: master
qtlocation-everywhere-opensource-src-5.15.16.tar.xz having proper md5sum already exists
qttranslations-everywhere-opensource-src-5.15.16.tar.xz having proper md5sum already exists
./builder[2768]: ulimit: unlimited exceeds allowable coredump(blocks) limit
Updating .distbcond
warning: %patchN is deprecated (2 usages found), use %patch N (or %patch -P N)
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/qt5-qtlocation-5.15.16-2.src.rpm
RPM build warnings:
    %patchN is deprecated (2 usages found), use %patch N (or %patch -P N)
real 0.49
user 0.38
sys 0.03
warning: %patchN is deprecated (2 usages found), use %patch N (or %patch -P N)
Writing git revision for tag tld/qt5-qtlocation-5.15.16-2
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:2.52s sys:1.46s real:9.91s (faults io:4 non-io:249749)
Files queued for ftp:
   8211016 qt5-qtlocation-5.15.16-2.src.rpm
       194 qt5-qtlocation-5.15.16-2.src.rpm.uploadinfo
End-TLD-Builder-Info