[...]

lder[2756]: ulimit: exceeds allowable limit
Building target platforms: i686-linux
Building for target i686-linux
Wrote: /home/users/builder/rpm/SRPMS/qt5-qtconnectivity-5.15.10-1.src.rpm
real 0.23
user 0.22
sys 0.01
exit status 0
Writing package revision
Already up to date.
No conditional flags passed
from available:
--with   :	
--without:	 doc qm
Available branches: master
qtconnectivity-everywhere-opensource-src-5.15.10.tar.xz having proper md5sum already exists
qttranslations-everywhere-opensource-src-5.15.10.tar.xz having proper md5sum already exists
./builder[2756]: ulimit: exceeds allowable limit
Building target platforms: i686-linux
Building for target i686-linux
Wrote: /home/users/builder/rpm/SRPMS/qt5-qtconnectivity-5.15.10-1.src.rpm
real 0.25
user 0.22
sys 0.02
Writing git revision for tag tld/qt5-qtconnectivity-5.15.10-1
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:1.08s sys:0.47s real:4.19s (faults io:1 non-io:132427)
Files queued for ftp:
   4479273 qt5-qtconnectivity-5.15.10-1.src.rpm
       198 qt5-qtconnectivity-5.15.10-1.src.rpm.uploadinfo
End-TLD-Builder-Info