ICE matching a tuple containing a string

[lucy]

Code:

fn main() {
    match ("", ()) {
        (_, _) => (),
        ("", _) => (),
    }
}

Output:

~ > rustc test.rs
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 'index out of bounds: the len is 0 but the index is 0', /build/rust-git/src/rust/src/librustc/middle/check_match.rs:262
stack backtrace:
   1:     0x7fb6b7174290 - rt::backtrace::imp::write::h2bd81792b12baabaPUy::v0.11.0.pre
   2:     0x7fb6b70f1020 - rt::unwind::begin_unwind_inner::hf025459ac89965dbXuy::v0.11.0.pre
   3:     0x7fb6b70e97e0 - rt::unwind::begin_unwind_fmt::hdf2abde05ea171af7ty::v0.11.0.pre
   4:     0x7fb6b7174030 - rust_begin_unwind
   5:     0x7fb6b71b6120 - failure::begin_unwind::hd8511e7163654fd6IOv::v0.11.0.pre
   6:     0x7fb6b71b6d70 - failure::fail_bounds_check::ha1974902474a29f7IMv::v0.11.0.pre
   7:     0x7fb6b7e3d900 - <unknown>
   8:     0x7fb6b7e3d900 - <unknown>
   9:     0x7fb6b7e43830 - <unknown>
  10:     0x7fb6b7e3d900 - <unknown>
  11:     0x7fb6b7e43830 - <unknown>
  12:     0x7fb6b7e3d900 - <unknown>
  13:     0x7fb6b7e37170 - <unknown>
  14:     0x7fb6b7e3ced0 - <unknown>
  15:     0x7fb6b7e39d90 - <unknown>
  16:     0x7fb6b7e3a960 - <unknown>
  17:     0x7fb6b7e3a010 - middle::check_match::check_crate::h4ecc262850114c4bYQw::v0.11.0.pre
  18:     0x7fb6b7e32380 - <unknown>
  19:     0x7fb6b82a2f60 - driver::driver::phase_3_run_analysis_passes::h9fe69b3bb03d321dITj::v0.11.0.pre
  20:     0x7fb6b829c160 - driver::driver::compile_input::hc60c22b08c843c82iJj::v0.11.0.pre
  21:     0x7fb6b8367980 - <unknown>
  22:     0x7fb6b83678a0 - <unknown>
  23:     0x7fb6b837cb70 - <unknown>
  24:     0x7fb6b8377e60 - <unknown>
  25:     0x7fb6ba209f10 - <unknown>
  26:     0x7fb6b716e410 - <unknown>
  27:     0x7fb6b71cbdf0 - rust_try
  28:     0x7fb6b716e360 - rt::task::Task::run::h5672b3545148c66eAjw::v0.11.0.pre
  29:     0x7fb6ba209cc0 - <unknown>
  30:     0x7fb6b7172690 - <unknown>
  31:     0x7fb6b6ab8060 - start_thread
  32:     0x7fb6b6db8489 - __clone
  33:                0x0 - <unknown>
~ > rustc -v
rustc 0.11.0-pre (87ad19e 2014-05-22 15:16:31 -0700)
host: x86_64-unknown-linux-gnu