unable to use gem cleanup on ubuntu feisty

anyone else having this problem? i got the same error on two clean
installs.

I noticed the same thing here, on my SuSE build.

It looks like the "cleanup" option has been removed, either by choice or
accident in the latest gem release.

Phil

Well I noticed the same thing on my machine (SuSE) but not only with
'cleanup', also with

rubygems-0.9.3 # gem update rails --include-dependencies
Updating installed gems...
ERROR: While executing gem ... (NoMethodError)
    undefined method `refresh' for #<Hash:0xb795fba0>

Any suggestions what goes wrong here ?