[...]

Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/x265-3.5-1.src.rpm
RPM build warnings:
    Macro expanded in comment on line 19: %{name}_%{version}.tar.gz
real 0.07
user 0.06
sys 0.01
exit status 0
Writing package revision
builder: SMP make flags are set to -j2
Already up to date.
warning: Macro expanded in comment on line 19: %{name}_%{version}.tar.gz
No conditional flags passed
from available:
--with   :	 vmaf
--without:	 asm
Available branches: master
x265_3.5.tar.gz having proper md5sum already exists
./builder[2756]: ulimit: unlimited exceeds allowable coredump(blocks) limit
warning: Macro expanded in comment on line 19: %{name}_%{version}.tar.gz
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/x265-3.5-1.src.rpm
RPM build warnings:
    Macro expanded in comment on line 19: %{name}_%{version}.tar.gz
real 0.07
user 0.06
sys 0.00
warning: Macro expanded in comment on line 19: %{name}_%{version}.tar.gz
Writing git revision for tag tld/x265-3.5-1
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:1.11s sys:0.36s real:3.14s (faults io:2 non-io:215453)
Files queued for ftp:
   1536021 x265-3.5-1.src.rpm
       180 x265-3.5-1.src.rpm.uploadinfo
End-TLD-Builder-Info