[...]

building SRPM using: cd rpm/packages; nice -n 0 ./builder -nu -nm --nodeps --http --define '_tld_builder 1' -bs  -r HEAD  -Tp auto/ti/ -tt   twolame.spec 2>&1
Cloning into 'twolame'...
57b93230fc44706aa8d3ea8e480f71c315170452
Already on 'master'
Your branch is up-to-date with 'origin/master'.
Already up-to-date.
Available branches: AC-branch master
Searching for tag auto/ti/twolame-0.3.13-2...
Searching for tag auto/ti/twolame-0_3_13-2...
--2017-07-04 23:30:41--  http://distfiles.pld-linux.org/distfiles/by-md5/4/1/4113d8aa80194459b45b83d4dbde8ddb/twolame-0.3.13.tar.gz
Resolving distfiles.pld-linux.org (distfiles.pld-linux.org)... 193.239.45.41
Connecting to distfiles.pld-linux.org (distfiles.pld-linux.org)|193.239.45.41|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 660415 (645K) [application/x-gzip]
Saving to: 'twolame-0.3.13.tar.gz'
     0K .......... .......... .......... .......... ..........  7% 1.02M 1s
    50K .......... .......... .......... .......... .......... 15% 2.01M 0s
   100K .......... .......... .......... .......... .......... 23% 74.9M 0s
   150K .......... .......... .......... .......... .......... 31%  113M 0s
   200K .......... .......... .......... .......... .......... 38% 2.06M 0s
   250K .......... .......... .......... .......... .......... 46% 51.3M 0s
   300K .......... .......... .......... .......... .......... 54%  111M 0s
   350K .......... .......... .......... .......... .......... 62%  175M 0s
   400K .......... .......... .......... .......... .......... 69% 2.18M 0s
   450K .......... .......... .......... .......... .......... 77% 59.4M 0s
   500K .......... .......... .......... .......... .......... 85%  111M 0s
   550K .......... .......... .......... .......... .......... 93%  141M 0s
   600K .......... .......... .......... .......... ....      100%  183M=0.1s
2017-07-04 23:30:41 (5.12 MB/s) - 'twolame-0.3.13.tar.gz' saved [660415/660415]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/twolame-0.3.13-2.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
Writing git revision for tag auto/ti/twolame-0.3.13-2
Tag auto/ti/twolame-0.3.13-2 already exists
error: Macro %_builddir has empty body
error: Macro %_builddir has empty body
Executing(--clean): env -i TMP=/home/users/builder/tmp HOME=/home/users/builder PATH=/bin:/usr/bin:/usr/sbin:/sbin:/usr/X11R6/bin TMPDIR=/home/users/builder/tmp  /bin/sh -e /home/users/builder/tmp/rpm-tmp.36455
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf twolame-0.3.13
Begin-TLD-Builder-Info
Build-Time: user:0.77s sys:0.19s real:5.93s (faults io:0 non-io:79627)
End-TLD-Builder-Info