Not understanding rdiff

[Neal Becker]

This shows there are changes on the remote, not present in my local repo (or wd):

hg incoming ssh://adgchassis7/eos
comparing with ssh://adgchassis7/eos
searching for changes
changeset:   27:f722d434c84e
parent:      25:cc9210d3f951
user:        nbecker at localhost.localdomain
date:        Thu Dec 04 10:56:39 2008 -0500
summary:     Add install

changeset:   28:cb3d9c0d6ac0
parent:      27:f722d434c84e
parent:      26:aa5d4a32b300
user:        nbecker at localhost.localdomain
date:        Mon Dec 15 13:17:01 2008 -0500
summary:     merge

changeset:   29:22a8ad8f3d69
tag:         tip
user:        nbecker at localhost.localdomain
date:        Mon Dec 15 14:03:28 2008 -0500
summary:     Check success of downloads.

hg diff ssh://adgchassis7/eos
comparing with ssh://adgchassis7/eos
searching for changes

[silence]

What's wrong?  I thought this would show me the diffs.