I have two installations of Cygwin (32 bit and 64 bit), and one installation of perl in each.

I'm trying to install Types::Serialiser in the 32-bit Cygwin. CPAN says:

cpan> i Types::Serialiser
CPAN: CPAN::SQLite loaded ok (v0.202)
Database was generated on Wed, 22 Jan 2014 18:00:00 GMT
Updating database file ...
Done!No objects found of any type for argument Types::Serialiser

cpan> o conf urllist
    urllist
        0 [www.cpan.org/]
        1 [mirror.nyi.net/pub/CPAN/]
        2 [mirrors.ccs.neu.edu/CPAN/]
        3 [httpupdate8.cpanel.net/CPAN/]
        4 [www.cpan.org/]
[download]

But in 64-bit Cygwin, CPAN says:

cpan[5]> i Types::Serialiser
Reading '/home/shagbark/.cpan/Metadata'
  Database was generated on Sun, 01 Mar 2015 11:53:20 GMT
Module id = Types::Serialiser
    CPAN_USERID  MLEHMANN (Marc Lehmann <schmorp@schmorp.de>)
    CPAN_VERSION 1.0
    CPAN_FILE    M/ML/MLEHMANN/Types-Serialiser-1.0.tar.gz
    UPLOAD_DATE  2013-11-30
    MANPAGE      Types::Serialiser - simple data types for common seri
+alisation formats
    INST_FILE    /usr/lib/perl5/site_perl/5.14/Types/Serialiser.pm
    INST_VERSION 1.0

cpan[7]> o conf urllist
    urllist
        0 [www.cpan.org/]
        1 [mirror.nyi.net/pub/CPAN/]
        2 [mirrors.ccs.neu.edu/CPAN/]
        3 [httpupdate8.cpanel.net/CPAN/]
[download]

(I had to remove the leading http and ftp from the links to get past perlmonks' spam filter.)

Version numbers on many modules (including CPAN) are different between the two installs, even though both have the same urllist. Where are they getting their info on CPAN packages, if it isn't from the urllist?

UPDATE: Fixed by

cpan> reload index
[download]