Why doesn't "wget -r" work for /scratch/ directory of koji.fedoraproject.org?

[Mamoru Tasaka]

Hello.

I remember that recursive and pattern matching download by "wget"
against /scratch/ directory of koji.fedoraproject.org like:

$ wget -N -r -A.i386.rpm http://koji.fedoraproject.org/scratch/mtasaka/task_511288/

was working before. However it seems now this does not work, only returning
like:
-------------------------------------------------------------------------------------
[tasaka1 at localhost gambas2]$ LANG=C wget -N -r -A.i386.rpm http://koji.fedoraproject.org/scratch/mtasaka/task_511288/
--03:00:54--  http://koji.fedoraproject.org/scratch/mtasaka/task_511288/
           => `koji.fedoraproject.org/scratch/mtasaka/task_511288/index.html'
Resolving koji.fedoraproject.org... 209.132.176.98
Connecting to koji.fedoraproject.org|209.132.176.98|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]

    [  <=>                                                               ] 12,205        37.25K/s             

Last-modified header missing -- time-stamps turned off.
03:00:56 (37.14 KB/s) - `koji.fedoraproject.org/scratch/mtasaka/task_511288/index.html' saved [12205]

Loading robots.txt; please ignore errors.
--03:00:56--  http://koji.fedoraproject.org/robots.txt
           => `koji.fedoraproject.org/robots.txt'
Connecting to koji.fedoraproject.org|209.132.176.98|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 26 [text/plain]
Server file no newer than local file `koji.fedoraproject.org/robots.txt' -- not retrieving.

Removing koji.fedoraproject.org/scratch/mtasaka/task_511288/index.html since it should be rejected.

FINISHED --03:00:56--
Downloaded: 12,205 bytes in 1 files
-------------------------------------------------------------------------------------

Does someone know why? I really want to use this wget usage (perhaps
browsing the above URL will show the reason :) )

Regards,
Mamoru