CFbot does not recognize patch contents

After sending out my v18 patches:
https://www.postgresql.org/message-id/20240511.162307.2246647987352188848.t-ishii%40sranhm.sra.co.jp

CFbot complains that the patch was broken:
http://cfbot.cputube.org/patch_48_4460.log

=== Applying patches on top of PostgreSQL commit ID 31e8f4e619d9b5856fa2bd5713cb1e2e170a9c7d ===
=== applying patch ./v18-0001-Row-pattern-recognition-patch-for-raw-parser.patch
gpatch: **** Only garbage was found in the patch input.

The patch was generated by git-format-patch (same as previous
patches).  I failed to find any patch format problem in the
patch. Does anybody know what's wrong here?

Best reagards,
--
Tatsuo Ishii
SRA OSS LLC
English: http://www.sraoss.co.jp/index_en/
Japanese:http://www.sraoss.co.jp