ICE with incorrect use of box (...) ... syntax

[huonw]

fn main() {
    box ( () ) 0;
}

boxerror.rs:2:5: 2:17 error: only the managed heap and exchange heap are currently supported
boxerror.rs:2     box ( () ) 0;
                  ^~~~~~~~~~~~
error: internal compiler error: no type for expr in fcx 0x7f86a744d1f0
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 'Box<Any>', /home/rustbuild/src/rust-buildbot/slave/nightly-linux/build/src/libsyntax/diagnostic.rs:155
stack backtrace:
   1:     0x7f86aa5dd8f0 - rt::backtrace::imp::write::h340bb8281d15ea8bULG::v0.11.pre
   2:     0x7f86aa540890 - rt::unwind::begin_unwind_inner::ha5714b5a6cc155c7XlG::v0.11.pre
   3:     0x7f86a8d64da0 - rt::unwind::begin_unwind::h5789193983823282263::v0.11.pre
   4:     0x7f86a8d65760 - diagnostic::Handler::bug::h80d6b66aba079169d0b::v0.11.pre
   5:     0x7f86aadf3e80 - driver::session::Session::bug::h897259b04f4252c6EOj::v0.11.pre
   6:     0x7f86ab032690 - middle::typeck::check::FnCtxt<'a>::expr_ty::h2337632ebecc0584MO9::v0.11.pre
   7:     0x7f86ab0f86b0 - middle::typeck::check::check_stmt::h7163081a87ec573cITc::v0.11.pre
   8:     0x7f86ab0b9620 - middle::typeck::check::check_block_with_expected::h9fd251d9a78dad62FXc::v0.11.pre
   9:     0x7f86ab0b49b0 - middle::typeck::check::check_fn::hac748cb7e7308e44Ol8::v0.11.pre
  10:     0x7f86ab0b4750 - middle::typeck::check::check_bare_fn::h28a87458660755e0lb8::v0.11.pre
  11:     0x7f86ab0ad160 - middle::typeck::check::check_item::h48543c64daaebc31mI8::v0.11.pre
  12:     0x7f86ab0b4550 - middle::typeck::check::check_item_types::hde9a7e2b6728cc4bDa8::v0.11.pre
  13:     0x7f86ab1fc0b0 - util::common::time::h10787029449497713397::v0.11.pre
  14:     0x7f86ab1faec0 - middle::typeck::check_crate::h72f3f2daa8759965u7v::v0.11.pre
  15:     0x7f86ab647cd0 - driver::driver::phase_3_run_analysis_passes::hde3b57d26e526733yZh::v0.11.pre
  16:     0x7f86ab64dd50 - driver::driver::compile_input::h6759abd4323d54dcDpi::v0.11.pre
  17:     0x7f86ab673b70 - run_compiler::hbee176bc48ee6bff8Sp::v0.11.pre
  18:     0x7f86ab68fee0 - main_args::closure.93842
  19:     0x7f86ab68e5c0 - monitor::closure.93717
  20:     0x7f86ab688d80 - task::TaskBuilder::try::closure.93483
  21:     0x7f86ad5a60b0 - task::spawn_opts::closure.7345
  22:     0x7f86aa5d4b50 - rt::task::Task::run::closure.28893
  23:     0x7f86aa5f5ed0 - rust_try
  24:     0x7f86aa5d4990 - rt::task::Task::run::hf6429b1224a2ea83FaE::v0.11.pre
  25:     0x7f86ad5a5e80 - task::spawn_opts::closure.7318
  26:     0x7f86aa5dc380 - rt::thread::thread_start::h456eeec20de48520QSE::v0.11.pre
  27:     0x7f86a9f19fa0 - start_thread
  28:     0x7f86aa214a09 - __clone
  29:                0x0 - <unknown>