Strange build failure on koji dist-f11

[Mamoru Tasaka]

Hello, all:

Currently it seems that all builds on dist-f11 fails due to some
strange error:

Example:
http://koji.fedoraproject.org/koji/taskinfo?taskID=1283342
http://koji.fedoraproject.org/koji/taskinfo?taskID=1283286

root.log on i586 says:
--------------------------------------------------------
DEBUG util.py:280:  Executing command: ['rpm', '-Uvh', '--nodeps', '/builddir/build/originals/ccrtp-1.7.1-1.fc11.src.rpm']
DEBUG util.py:256:  error: Unterminated {: {_%{_keyringpath}/*.k
DEBUG util.py:256:    0< /
DEBUG util.py:256:  error: /: reading of public key failed.
DEBUG util.py:256:  error: cannot open Packages index using db3 - No such file or directory (2)
DEBUG util.py:256:  error: Unterminated {: {_%{_dbpat)
DEBUG util.py:256:    0< /
DEBUG util.py:256:  error: cannot open Packages database in /
DEBUG util.py:256:  error: Unterminated {: {_%{_topdiY"
DEBUG util.py:256:    0< /
DEBUG util.py:256:  error: Unterminated {: {_%{_sourcedi
DEBUG util.py:256:    0< /
DEBUG util.py:256:  error: Unterminated {: {_%{_specdi


DEBUG util.py:256:    0< /
DEBUG util.py:256:  ccrtp                       ##################################################
DEBUG util.py:256:  error: unpacking of archive failed on file /b/builddir/build/SOURCE/cccrtp-1.7.1.tar.gz²÷<§	;49db7c7d: cpio: mkdir failed - Invalid argument
--------------------------------------------------------

Would some investigate what is happening?

Regards,
Mamoru