My iterate directory was missing some patches. With the latest version from darcs 5 tests fail:

5 out of 268 total tests failed: ITERATE.TEST::ALWAYS.FINALLY,
ITERATE.TEST::NEVER.FINALLY, ITERATE.TEST::THEREIS.FINALLY,
ITERATE.TEST::BUG/WALK.2, ITERATE.TEST::BUG/COLLECT-AT-BEGINNING.

Apologies for the confusion.

Ilya