error: internal compiler error: range_to_inttype: found ReprPacked on an enum

[fitzgen]

http://is.gd/XqFILb

stack backtrace:
   1:        0x10e063be3 - sys::backtrace::write::hc8e3cee73e646c590nC
   2:        0x10e091be5 - panicking::on_panic::h00b47941f5bc8a02HOL
   3:        0x10dfbb418 - rt::unwind::begin_unwind_inner::h539538ef7f909326UvL
   4:        0x10d678dcf - rt::unwind::begin_unwind::h17340398235865146743
   5:        0x10d6796fd - diagnostic::Handler::bug::h7e78f4ac01756c63w4E
   6:        0x10aef2028 - session::Session::bug::hb92b783f7b3446ffSnt
   7:        0x10a947da8 - check::check_item::h4a1b4ae849c9e701nTn
   8:        0x10aa19b73 - check_crate::closure.35867
   9:        0x10aa14911 - check_crate::hbe2eb4aab434ad7cVjC
  10:        0x10a3768db - driver::phase_3_run_analysis_passes::h50728865d3ffa6b2gHa
  11:        0x10a35bb9d - driver::compile_input::h349b039ebe75c13eGba
  12:        0x10a434857 - run_compiler::h1e4d87c6044fbf6dZbc
  13:        0x10a431cd1 - thunk::F.Invoke<A, R>::invoke::h2059937391804860278
  14:        0x10a430930 - rt::unwind::try::try_fn::h11862807381821880905
  15:        0x10e10b7e9 - rust_try_inner
  16:        0x10e10b7d6 - rust_try
  17:        0x10a431095 - thunk::F.Invoke<A, R>::invoke::h6573516661401600357
  18:        0x10e07aac3 - sys::thread::thread_start::h9e3555425c6999b2e4G
  19:     0x7fff966f1268 - _pthread_body
  20:     0x7fff966f11e5 - _pthread_body

[tamird]

Still ICEs.

use std::mem;

#[repr(packed)]
pub enum BytecodeInstruction {
A, B, C
}

fn main() {
    println!("Hello, world! {}", std::mem::size_of::<BytecodeInstruction>())
}