[...]

Cloning into 'libnetfilter_conntrack'...
Already up to date.
Available branches: AC-branch master
--2021-05-09 19:26:52--  http://distfiles.pld-linux.org/by-md5/3/1/3121b55acf97322db830da75d8407cba/libnetfilter_conntrack-1.0.8.tar.bz2
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: 331750 (324K) [application/x-bzip2]
Saving to: 'libnetfilter_conntrack-1.0.8.tar.bz2'
     0K .......... .......... .......... .......... .......... 15%  804K 0s
    50K .......... .......... .......... .......... .......... 30% 1.59M 0s
   100K .......... .......... .......... .......... .......... 46% 73.6M 0s
   150K .......... .......... .......... .......... .......... 61% 58.2M 0s
   200K .......... .......... .......... .......... .......... 77% 1.64M 0s
   250K .......... .......... .......... .......... .......... 92%  115M 0s
   300K .......... .......... ...                             100% 68.7M=0.1s
2021-05-09 19:26:52 (2.53 MB/s) - 'libnetfilter_conntrack-1.0.8.tar.bz2' saved [331750/331750]
./builder[2756]: ulimit: exceeds allowable limit
Building target platforms: i686-linux
Building for target i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libnetfilter_conntrack-1.0.8-1.src.rpm
real 0.06
user 0.05
sys 0.01
exit status 0
Writing package revision
builder: SMP make flags are set to -j2
Already up to date.
Available branches: AC-branch master
libnetfilter_conntrack-1.0.8.tar.bz2 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/libnetfilter_conntrack-1.0.8-1.src.rpm
real 0.06
user 0.05
sys 0.01
Writing git revision for tag tld/libnetfilter_conntrack-1.0.8-1
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:0.78s sys:0.58s real:1.88s (faults io:0 non-io:110543)
Files queued for ftp:
    342989 libnetfilter_conntrack-1.0.8-1.src.rpm
       200 libnetfilter_conntrack-1.0.8-1.src.rpm.uploadinfo
End-TLD-Builder-Info