dbus failed on x86_64 dockyard-devel (c64.arklinux.org)

dbus failed to build on x86_64 for dockyard-devel.
Last 250 lines of build log:

Installing dbus-1.0.2-3ark.src.rpm
Building target platforms: x86_64
Building for target x86_64
Executing(%prep): /bin/sh -e /var/tmp/rpm-tmp.37391
+ umask 022
+ cd /build-dbus-x86_64/BUILD
+ cd /build-dbus-x86_64/BUILD
+ rm -rf dbus-1.0.2
+ tar -xf /usr/src/ark/SOURCES/dbus-1.0.2.tar.lz
tar: lzmash: Cannot exec: No such file or directory
tar: Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error exit delayed from previous errors
error: Bad exit status from /var/tmp/rpm-tmp.37391 (%prep)


RPM build errors:
    Bad exit status from /var/tmp/rpm-tmp.37391 (%prep)