ICE: `Cannot relate bound region` with `extern mod`

[klutzy]

a.rs:

#[crate_type = "rlib"];
pub struct A<'a>(&'a int);

b.rs:

extern mod a;
fn main() {
    let one = 1;
    let _a = a::A(&one);
}

b.rs:5:19: 5:23 error: internal compiler error: Cannot relate bound region: ReEarlyBound(12, 0, a) <= ReInfer(1)
This message reflects a bug in the Rust compiler.
We would appreciate a bug report: http://static.rust-lang.org/doc/master/complement-bugreport.html
b.rs:5     let _a = a::A(&one);
                         ^~~~

cc @nikomatsakis

[jfager]

This doesn't appear to be a problem anymore, can this be closed?

[alexcrichton]

Flagging as needstest.