pubkey auth doesn't work for hg clone

Hi

I tried to clone

hg clone ssh://hg@bitbucket.org/laczoka/grcrawler
running ssh hg@bitbucket.org "hg -R laczoka/grcrawler serve --stdio"
destination directory: grcrawler
requesting all changes
adding changesets
adding manifests
adding file changes

this is where it stopped and I had to hit ctrl-c.
http:// works, but password-only which is tedious

confirmed by alexstolz too.

thx