[...]

c-4.0.0.tar.gz having proper md5sum already exists
./builder[2756]: ulimit: unlimited exceeds allowable coredump(blocks) limit
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/lerc-4.0.0-1.src.rpm
real 0.15
user 0.13
sys 0.01
Writing git revision for tag tld/lerc-4.0.0-1
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:0.94s sys:0.25s real:3.36s (faults io:0 non-io:120128)
Files queued for ftp:
   4715945 lerc-4.0.0-1.src.rpm
       182 lerc-4.0.0-1.src.rpm.uploadinfo
End-TLD-Builder-Info