auto merge of #86 : alexcrichton/cargo/issue-77, r=wycats
authorbors <bors@rust-lang.org>
Mon, 30 Jun 2014 20:20:07 +0000 (20:20 +0000)
committerbors <bors@rust-lang.org>
Mon, 30 Jun 2014 20:20:07 +0000 (20:20 +0000)
Instead, keep a table of what we've visited and halt recursion whenever we
re-visit a package.


Trivial merge