[...]

lder[2768]: ulimit: unlimited exceeds allowable coredump(blocks) limit
Updating .distbcond
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/nginx-1.27.5-1.src.rpm
real 0.29
user 0.25
sys 0.03
Writing git revision for tag tld/nginx-1.27.5-1
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:4.08s sys:1.21s real:8.67s (faults io:4 non-io:666887)
Files queued for ftp:
   2131513 nginx-1.27.5-1.src.rpm
       184 nginx-1.27.5-1.src.rpm.uploadinfo
End-TLD-Builder-Info