hg log shows nothing after upgrade.

[Matt Mackall]

On Tue, 2015-01-13 at 12:28 -0600, Rob Landley wrote:
>   http://landley.net/dothg.tar.gz

You have a "new" repo with a missing requires file.. which causes
Mercurial to treat it as a paleolithic repo because it claims to have no
requirements. To fix:

$ hg init foo
$ cp foo/.hg/requires .hg/requires
$ hg log

Mercurial only touches this file at repo creation time.. so someone else
must have touched it in the meantime.

-- 
Mathematics is the supreme nostalgia of our time.