[...]

 84850K .......... .......... .......... .......... .......... 99% 11.2M 0s
 84900K .......... .......... .......... .......... .......... 99% 10.8M 0s
 84950K .......... .......... .......... .......... .......... 99% 10.1M 0s
 85000K .......... .......... .......... .......... .......... 99% 10.9M 0s
 85050K .......... .......... .......... .......... .......... 99% 10.4M 0s
 85100K .......... .......... .......... .......... .......... 99% 10.3M 0s
 85150K .......... .......... .......... .......... .......... 99% 10.8M 0s
 85200K .......... .......... .......... .......... ......... 100% 10.6M=8.1s
2016-08-23 06:26:17 (10.3 MB/s) - 'linux-4.4.tar.xz' saved [87295988/87295988]
--2016-08-23 06:26:18--  http://df.tld-linux.org/distfiles/by-md5/8/c/8cd0a643e0233960a72145731a8b6bdd/patch-4.4.19.xz
Resolving df.tld-linux.org (df.tld-linux.org)... 46.4.78.55
Connecting to df.tld-linux.org (df.tld-linux.org)|46.4.78.55|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 589516 (576K) [application/x-xz]
Saving to: 'patch-4.4.19.xz'
     0K .......... .......... .......... .......... ..........  8% 1.38M 0s
    50K .......... .......... .......... .......... .......... 17% 3.14M 0s
   100K .......... .......... .......... .......... .......... 26% 5.37M 0s
   150K .......... .......... .......... .......... .......... 34% 7.28M 0s
   200K .......... .......... .......... .......... .......... 43% 8.02M 0s
   250K .......... .......... .......... .......... .......... 52% 6.25M 0s
   300K .......... .......... .......... .......... .......... 60% 8.42M 0s
   350K .......... .......... .......... .......... .......... 69% 9.79M 0s
   400K .......... .......... .......... .......... .......... 78% 10.7M 0s
   450K .......... .......... .......... .......... .......... 86% 10.2M 0s
   500K .......... .......... .......... .......... .......... 95% 10.3M 0s
   550K .......... .......... .....                           100% 12.6M=0.1s
2016-08-23 06:26:18 (5.24 MB/s) - 'patch-4.4.19.xz' saved [589516/589516]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/kernel-4.4-vanilla-4.4.19-1.src.rpm
exit status 0
builder: Active branch LINUX_4_4. Use -r BRANCHNAME to override
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.19209
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf kernel-4.4-vanilla-4.4.19
Begin-TLD-Builder-Info
Build-Time: user:17.55s sys:6.03s real:39.24s (faults io:168 non-io:129379)
Files queued for ftp:
  88017570 kernel-4.4-vanilla-4.4.19-1.src.rpm
End-TLD-Builder-Info