[...]

builder: SMP make flags are set to -j2
Cloning into 'libmd'...
Already up to date.
Available branches: martin.hinner.info-implementation master
--2022-04-03 08:42:44--  http://distfiles.pld-linux.org/by-md5/e/8/e8e955f8d53d2c9306b07c90ff6ae395/libmd-1.0.4.tar.xz
Resolving distfiles.pld-linux.org... 193.239.45.41
Connecting to distfiles.pld-linux.org|193.239.45.41|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 264472 (258K) [application/octet-stream]
Saving to: 'libmd-1.0.4.tar.xz'
     0K .......... .......... .......... .......... .......... 19%  807K 0s
    50K .......... .......... .......... .......... .......... 38% 1.57M 0s
   100K .......... .......... .......... .......... .......... 58% 80.6M 0s
   150K .......... .......... .......... .......... .......... 77% 74.3M 0s
   200K .......... .......... .......... .......... .......... 96% 1.61M 0s
   250K ........                                              100%  129M=0.1s
2022-04-03 08:42:44 (2.02 MB/s) - 'libmd-1.0.4.tar.xz' saved [264472/264472]
./builder[2756]: ulimit: exceeds allowable limit
Building target platforms: i686-linux
Building for target i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libmd-1.0.4-1.src.rpm
real 0.08
user 0.05
sys 0.03
exit status 0
Writing package revision
builder: SMP make flags are set to -j2
Already up to date.
Available branches: martin.hinner.info-implementation master
libmd-1.0.4.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/libmd-1.0.4-1.src.rpm
real 0.19
user 0.07
sys 0.05
Writing git revision for tag tld/libmd-1.0.4-1
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:1.07s sys:1.17s real:3.55s (faults io:0 non-io:93263)
Files queued for ftp:
    274406 libmd-1.0.4-1.src.rpm
       183 libmd-1.0.4-1.src.rpm.uploadinfo
End-TLD-Builder-Info