INDEX build failed for 8.x

[Ports Index build]

INDEX build failed with errors:
Generating INDEX-8 - please wait..--- describe.accessibility ---
--- describe.arabic ---
--- describe.archivers ---
--- describe.astro ---
--- describe.audio ---
--- describe.benchmarks ---
--- describe.biology ---
--- describe.cad ---
--- describe.chinese ---
--- describe.comms ---
--- describe.converters ---
--- describe.databases ---
--- describe.deskutils ---
--- describe.devel ---
--- describe.dns ---
--- describe.editors ---
--- describe.emulators ---
--- describe.finance ---
--- describe.french ---
--- describe.ftp ---
[...]
--- describe.misc ---
--- describe.multimedia ---
--- describe.net ---
--- describe.net-im ---
--- describe.devel ---
make[5]: "/home/indexbuild/tindex/ports/devel/py-stevedore/Makefile" line 19: Unassociated shell command "${PKGNAMEPREFIX}pbr>=0.10.0:${PORTSDIR}/devel/py-pbr  ${PKGNAMEPREFIX}six>=1.7.0:${PORTSDIR}/devel/py-six"
make[5]: Fatal errors encountered -- cannot continue===> devel/py-stevedore failed
*** [describe.devel] Error code 1

make[2]: stopped in /home/indexbuild/tindex/ports

make[2]: stopped in /home/indexbuild/tindex/ports
*** Error code 1

Stop.
make[1]: stopped in /home/indexbuild/tindex/ports
*** Error code 1

Stop.
make: stopped in /home/indexbuild/tindex/ports
1 error

Committers on the hook:
 antoine bofh gerald johans mandree nivit riggs 

Most recent SVN update was:
Updating '.':
U    lang/gcc49/Makefile
U    lang/gcc49/distinfo
U    print/ft2demos/Makefile
U    print/ft2demos/distinfo
U    archivers/lzo2/Makefile
U    archivers/lzo2/distinfo
D    archivers/lzo2/files/patch-util__check.sh
U    archivers/lzo2/files/patch-lzotest__lzotest.c
U    devel/patch/distinfo
U    devel/patch/Makefile
U    devel/py-stevedore/Makefile
U    audio/libsidplayfp/Makefile
U    audio/libsidplayfp/distinfo
U    audio/libsidplayfp/files/patch-Makefile.in
U    mail/dbmail/Makefile
U    mail/dbmail/distinfo
U    MOVED
U    sysutils/3dm/Makefile
U    sysutils/dar/pkg-plist
U    sysutils/dar/Makefile
U    sysutils/dar/distinfo
U    sysutils/Makefile
U    sysutils/parallel/Makefile
U    sysutils/parallel/distinfo
A    sysutils/avfs
A    sysutils/avfs/pkg-plist
A    sysutils/avfs/Makefile
A    sysutils/avfs/distinfo
A    sysutils/avfs/pkg-descr
A    sysutils/avfs/files
A    sysutils/avfs/files/patch-scripts_mountavs
A    sysutils/avfs/files/patch-scripts_umountavs
A    sysutils/avfs/files/patch-src_Makefile.in
Updated to revision 378594.