fwiw, mine here is:

C:\family\ruby>fastri-server -b
Indexing RI docs for ZenTest version 3.4.3.
Indexing RI docs for actionmailer version 1.3.1.
<snip>...
Indexing RI docs for win32-sound version 0.4.0.
Indexing RI docs for win32console-1.0.8-i386 version mswin32.
Indexing RI docs for windows-pr version 0.6.2.
Building index.
Indexed:
* 10240 methods
* 2046 classes/modules
Needed 3.984 seconds

ok, i think that's success alright. 
Now,

C:\family\ruby>fastri-server -B
Indexing RI docs for ZenTest version 3.4.3.
<snip>....
Indexing RI docs for win32-sound version 0.4.0.
Indexing RI docs for win32console-1.0.8-i386 version mswin32.
Indexing RI docs for windows-pr version 0.6.2.
c:/ruby/lib/ruby/gems/1.8/gems/fastri-0.3.0.1/bin/fastri-server:70:
C:\family\ruby>

is that a success or what?
i think the full rebuild is buggy, how can we debug it using just ruby?

kind regards -botp