[...]

   950K .......... .......... .......... .......... .......... 55% 84.2M 0s
  1000K .......... .......... .......... .......... .......... 58%  114M 0s
  1050K .......... .......... .......... .......... .......... 61% 92.4M 0s
  1100K .......... .......... .......... .......... .......... 64%  116M 0s
  1150K .......... .......... .......... .......... .......... 66% 83.1M 0s
  1200K .......... .......... .......... .......... .......... 69% 93.4M 0s
  1250K .......... .......... .......... .......... .......... 72%  112M 0s
  1300K .......... .......... .......... .......... .......... 75% 84.4M 0s
  1350K .......... .......... .......... .......... .......... 78% 96.1M 0s
  1400K .......... .......... .......... .......... .......... 80%  108M 0s
  1450K .......... .......... .......... .......... .......... 83% 94.0M 0s
  1500K .......... .......... .......... .......... .......... 86%  114M 0s
  1550K .......... .......... .......... .......... .......... 89%  109M 0s
  1600K .......... .......... .......... .......... .......... 92%  105M 0s
  1650K .......... .......... .......... .......... .......... 94%  111M 0s
  1700K .......... .......... .......... .......... .......... 97% 82.3M 0s
  1750K .......... .......... .......... .......... .         100%  110M=0.2s
2021-03-21 11:19:08 (8.88 MB/s) - 'zstd-1.4.9.tar.gz' saved [1834843/1834843]
./builder[2756]: ulimit: exceeds allowable limit
Building target platforms: i686-linux
Building for target i686-linux
Wrote: /home/users/builder/rpm/SRPMS/zstd-1.4.9-1.src.rpm
real 0.13
user 0.10
sys 0.02
exit status 0
Writing pkgrev
builder: SMP make flags are set to -j2
Already up to date.
Available branches: master
zstd-1.4.9.tar.gz 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/zstd-1.4.9-1.src.rpm
real 0.13
user 0.11
sys 0.02
Writing git revision for tag tld/zstd-1.4.9-1
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:0.83s sys:0.63s real:4.24s (faults io:0 non-io:110555)
Files queued for ftp:
   1844098 zstd-1.4.9-1.src.rpm
       182 zstd-1.4.9-1.src.rpm.uploadinfo
End-TLD-Builder-Info