compiler failure: 'expected bare rust fn or an intrinsic' (cross-crate pub use of empty struct)

foo.rs

extern crate foo;

fn main() {
	foo::Bar;
}

libfoo.rs

#![crate_type="lib"]
#![crate_id="foo"]

pub use self::bar::Bar;

mod bar {
	pub struct Bar;
}

Output

$ rustc libfoo.rs 
$ RUST_BACKTRACE=1 rustc -L . foo.rs 
foo.rs:4:2: 4:11 warning: path statement with no effect, #[warn(path_statement)] on by default
foo.rs:4 	foo::Bar;
         	^~~~~~~~~
error: internal compiler error: unexpected failure
note: the compiler hit an unexpected failure path. this is a bug.
note: we would appreciate a bug report: http://static.rust-lang.org/doc/master/complement-bugreport.html
note: run with `RUST_BACKTRACE=1` for a backtrace
task 'rustc' failed at 'expected bare rust fn or an intrinsic', /home/rustbuild/src/rust-buildbot/slave/nightly-linux/build/src/librustc/middle/trans/base.rs:1720
stack backtrace:
   1:     0x7f8370f52ec0 - rt::backtrace::imp::write::hc98b15d8c291ce18Vwa::v0.11.pre
   2:     0x7f8370ea4530 - rt::unwind::begin_unwind_inner::he19aef5afc5bdae7069::v0.11.pre
   3:     0x7f8371b1d7e0 - rt::unwind::begin_unwind::h7903194064715478821::v0.11.pre
   4:     0x7f8371c236b0 - middle::trans::base::register_fn::hd55b0fd239861367Otp::v0.11.pre
   5:     0x7f8371b2b7f0 - middle::trans::base::get_item_val::h83c660af8fefc3c9YGp::v0.11.pre
   6:     0x7f8371b8e200 - middle::trans::callee::trans_fn_ref_with_vtables::h1581f92db8ba813ejed::v0.11.pre
   7:     0x7f8371b89ad0 - middle::trans::callee::trans_fn_ref::h21b7d08ffe420b4ey7c::v0.11.pre
   8:     0x7f8371bac190 - middle::trans::expr::trans_def::h3d3f72c8d7fb02a4H1e::v0.11.pre
   9:     0x7f8371ba0fa0 - middle::trans::expr::trans_unadjusted::h7eb04b0989b4c1e39He::v0.11.pre
  10:     0x7f8371b63790 - middle::trans::expr::trans_into::h3a621dae798db578Rle::v0.11.pre
  11:     0x7f8371b628e0 - middle::trans::controlflow::trans_stmt_semi::hda64a192370b5d7984a::v0.11.pre
  12:     0x7f8371b61d20 - middle::trans::controlflow::trans_stmt::h2d2abdd00357b53050a::v0.11.pre
  13:     0x7f8371b63cd0 - middle::trans::controlflow::trans_block::h33ec1bc495d9d33115a::v0.11.pre
  14:     0x7f8371c1cc10 - middle::trans::base::trans_closure::h9e908588d56038e2g3o::v0.11.pre
  15:     0x7f8371b2f830 - middle::trans::base::trans_fn::hf8a968e255e75f9dmbp::v0.11.pre
  16:     0x7f8371b2a4c0 - middle::trans::base::trans_item::h7feba7b86e8310954mp::v0.11.pre
  17:     0x7f8371c210c0 - middle::trans::base::trans_mod::h317799af5fdaf543asp::v0.11.pre
  18:     0x7f8371c2aa70 - middle::trans::base::trans_crate::h46b98ca4d03a648aI7p::v0.11.pre
  19:     0x7f837237b890 - driver::driver::phase_4_translate_to_llvm::h9ea228886c0128ebMAf::v0.11.pre
  20:     0x7f837237de90 - driver::driver::compile_input::hc3f616849fdb5e293Rf::v0.11.pre
  21:     0x7f83723a3360 - run_compiler::hcc78fe154df8c362akn::v0.11.pre
  22:     0x7f83723bf7d0 - main_args::closure.91252
  23:     0x7f83723bdcd0 - monitor::closure.91127
  24:     0x7f83723b8540 - task::TaskBuilder::try::closure.90893
  25:     0x7f83715ec8d0 - task::spawn_opts::closure.7140
  26:     0x7f8370f48970 - rt::task::Task::run::closure.40321
  27:     0x7f8370f59240 - rust_try
  28:     0x7f8370f487b0 - rt::task::Task::run::h8d4be746ef52ccf63W7::v0.11.pre
  29:     0x7f83715ec6a0 - task::spawn_opts::closure.7113
  30:     0x7f8370f51a00 - rt::thread::thread_start::h8bb797ab191304afgC8::v0.11.pre
  31:     0x7f836ec210c0 - start_thread
  32:     0x7f8370b712d9 - __clone
  33:                0x0 - <unknown>