ICE: Referenced variable location is not an alloca

Introduced in the last few days, happens with nonzero --debuginfo.

rustc 0.13.0-nightly (34d680009 2014-12-22 00:12:47 +0000).

#![crate_type="lib"]
#![allow(warnings)]

fn foo() {
    for _i in SIZES.iter() {}
}

static SIZES: [u64, ..1] = [
    40_u64,
];

jurily@jurily ~/p/p/scratch> rustc src/lib.rs # success
jurily@jurily ~/p/p/scratch> rustc src/lib.rs -g
src/lib.rs:5:9: 5:11 error: internal compiler error: debuginfo::create_for_loop_var_metadata() - Referenced variable location is not an alloca!
src/lib.rs:5     for _i in SIZES.iter() {}
                     ^~
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: http://doc.rust-lang.org/complement-bugreport.html
note: run with `RUST_BACKTRACE=1` for a backtrace
thread 'rustc' panicked at 'Box<Any>', /home/rustbuild/src/rust-buildbot/slave/nightly-linux/build/src/libsyntax/diagnostic.rs:123

stack backtrace:
   1:     0x7fbfd75047f0 - sys::backtrace::write::hc1f09f1eae19d77aQxt
   2:     0x7fbfd7525710 - failure::on_fail::h0fb87b850ab6cd900Xz
   3:     0x7fbfd74914a0 - rt::unwind::begin_unwind_inner::habde574b4f76ade20Bz
   4:     0x7fbfd2532f00 - rt::unwind::begin_unwind::h16328291673998487577
   5:     0x7fbfd2532e80 - diagnostic::SpanHandler::span_bug::hbb7934a78e265d5dSXF
   6:     0x7fbfd540c350 - session::Session::span_bug::h8e056d7b667a2fcb1on
   7:     0x7fbfd63932a0 - middle::pat_util::pat_bindings::closure.49058
   8:     0x7fbfd24fdd50 - ast_util::walk_pat::hab0b8805a667994dlxC
   9:     0x7fbfd62c0f90 - trans::expr::trans_rvalue_stmt_unadjusted::hb3ffc0f604cb73e4l4i
  10:     0x7fbfd627b2c0 - trans::expr::trans_into::h71668aa506e1a690uGh
  11:     0x7fbfd627ba20 - trans::controlflow::trans_block::hc167a4817215f70d9Zd
  12:     0x7fbfd6327310 - trans::base::trans_closure::h0f21c829c37744a86au
  13:     0x7fbfd626ffd0 - trans::base::trans_fn::h5a95a6b70c2d9335nmu
  14:     0x7fbfd626b520 - trans::base::trans_item::hf517e1dbb2128044rHu
  15:     0x7fbfd632f230 - trans::base::trans_crate::he5a814094c8a4da1HDv
  16:     0x7fbfd7a64f70 - driver::phase_4_translate_to_llvm::hc65b794b160978481Ca
  17:     0x7fbfd7a3be40 - driver::compile_input::hec1a59cac622cf55vba
  18:     0x7fbfd7be3220 - thunk::F.Invoke<A,$u{20}R$GT$::invoke::h10851168864564136615
  19:     0x7fbfd7be18d0 - rt::unwind::try::try_fn::h10692001439554181982
  20:     0x7fbfd75893f0 - rust_try_inner
  21:     0x7fbfd75893e0 - rust_try
  22:     0x7fbfd7be1c00 - thunk::F.Invoke<A,$u{20}R$GT$::invoke::h18028200319240022992
  23:     0x7fbfd7514f60 - sys::thread::thread_start::hdeb95f039f29863doww
  24:     0x7fbfd1d35190 - <unknown>
  25:     0x7fbfd7146f29 - __clone
  26:                0x0 - <unknown>

[mitchmindtree]

I'm also hitting this

   Compiling pitch_calc v0.8.0 (file:///Users/Mitch/Programming/Rust/pitch_calc)
/Users/Mitch/Programming/Rust/pitch_calc/examples/test.rs:27:9: 27:10 error: internal compiler error: debuginfo::create_for_loop_var_metadata() - Referenced variable location is not an alloca!
/Users/Mitch/Programming/Rust/pitch_calc/examples/test.rs:27     for i in range(0u, 12) {
                                                                     ^
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: http://doc.rust-lang.org/complement-bugreport.html
note: run with `RUST_BACKTRACE=1` for a backtrace
thread 'rustc' panicked at 'Box<Any>', /Users/rustbuild/src/rust-buildbot/slave/nightly-mac/build/src/libsyntax/diagnostic.rs:123

stack backtrace:
   1:        0x112c042f8 - sys::backtrace::write::he7909da9eb6468e9fBt
   2:        0x112c24c03 - failure::on_fail::hb7ba51d37f883f003Qz
   3:        0x112b90cfa - rt::unwind::begin_unwind_inner::hf4af2222e6b64258uyz
   4:        0x110a91d97 - rt::unwind::begin_unwind::h8565474196370893881
   5:        0x110a91d30 - rt::unwind::begin_unwind::h8565474196370893881
   6:        0x10ff0852d - session::Session::span_bug::hf51aebfd6f9bd43e1on
   7:        0x10f6b5904 - middle::pat_util::pat_bindings::closure.49095
   8:        0x110a5ccd1 - ast_util::walk_pat::h8ae3b0f1f213c350lxC
   9:        0x10f5eaa90 - trans::expr::trans_rvalue_stmt_unadjusted::hd7e98e6041ff86d1l4i
  10:        0x10f5a2835 - trans::expr::trans_into::h24b0113a1e4ebf0euGh
  11:        0x10f5a17cb - trans::controlflow::trans_stmt_semi::he012fdd638652fbcgZd
  12:        0x10f5a2e72 - trans::controlflow::trans_block::hc3b3fec5a3fb9ff79Zd
  13:        0x10f64d234 - trans::base::trans_closure::hd46f470562b1daa76au
  14:        0x10f597622 - trans::base::trans_fn::hbf7352ab9dfcd879nmu
  15:        0x10f592e33 - trans::base::trans_item::hf69d9d491dc08772rHu
  16:        0x10f653d38 - trans::base::trans_crate::h82eea2293a06ce55HDv
  17:        0x10f39550e - driver::phase_4_translate_to_llvm::h3268e7acb055bc171Ca
  18:        0x10f36f2d8 - driver::compile_input::ha7c31ba4e10c023avba
  19:        0x10f4e78e6 - thunk::F.Invoke<A,$u{20}R$GT$::invoke::h2822247860475515909
  20:        0x10f4e41e9 - rt::unwind::try::try_fn::h6416506685293600697
  21:        0x112c8ad29 - rust_try_inner
  22:        0x112c8ad16 - rust_try
  23:        0x10f4e48e7 - thunk::F.Invoke<A,$u{20}R$GT$::invoke::h15537213600061603954
  24:        0x112c141d4 - sys::thread::thread_start::h3cbfc0fe9ecfb222Kww
  25:     0x7fff886662fc - _pthread_body
  26:     0x7fff88666279 - _pthread_body

Build failed, waiting for other jobs to finish...
Could not compile `pitch_calc`.

To learn more, run the command again with --verbose.

shell returned 101

Here's a link to the very simple code where the error occurs.

[jdm]

Dup of #20127.