ICE when trying to call Ord::cmp as a free function

[giogadi]

Here's the offending code:

use std::cmp::Ord;

fn main() {
    let x = 1i;
    let y = 2i;
    println!("{}", Ord::cmp(&x, &y));
}

rustc version info:

rustc 0.13.0-nightly (6ef8392b3 2014-10-20 22:17:49 +0000)
binary: rustc
commit-hash: 6ef8392b3fd5f81165f1b4637a94c7c226420070
commit-date: 2014-10-20 22:17:49 +0000
host: x86_64-apple-darwin
release: 0.13.0-nightly

and the stack trace:

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://doc.rust-lang.org/complement-bugreport.html
note: run with `RUST_BACKTRACE=1` for a backtrace
task 'rustc' failed at 'assertion failed: `(left == right) && (right == left)` (left: `3`,     right: `0`)',     /Users/rustbuild/src/rust-buildbot/slave/nightly-mac/build/src/librustc/middle/trans/callee.rs:528

stack backtrace:
   1:        0x10e5a93a9 - rt::backtrace::imp::write::hf323fec74faa7c8cmlq
   2:        0x10e5ac677 - failure::on_fail::h7143e6cb367a2e37VBq
   3:        0x10e806c15 - unwind::begin_unwind_inner::h38e7fe7d6aaf16401ud
   4:        0x10e8068dc - unwind::begin_unwind_fmt::hdf2ca956055cbb79tsd
   5:        0x10b5abab5 - middle::trans::callee::trans_fn_ref_with_substs::haa010be8569e1e4dLo3
   6:        0x10b5a8e61 - middle::trans::callee::trans_fn_ref::h0ffccf42044363afBc3
   7:        0x10b5b1e5b - middle::trans::callee::trans_call::closure.123047
   8:        0x10b58aab4 - middle::trans::callee::trans_call_inner::h765ee787cdb0c185vK3
   9:        0x10b5b1547 - middle::trans::callee::trans_call::he5f5f0bf10cb35cfPE3
  10:        0x10b5c1071 - middle::trans::expr::trans_rvalue_dps_unadjusted::he07ca709524b78858S5
  11:        0x10b5bf281 - middle::trans::expr::trans_unadjusted::h85d3b8a83dc2d19eEf5
  12:        0x10b584382 - middle::trans::expr::trans::ha3267407ca5ddba4Ay4
  13:        0x10b5ca548 - middle::trans::expr::trans_addr_of::h015af9fdde5130d6QG6
  14:        0x10b5bfa7f - middle::trans::expr::trans_unadjusted::h85d3b8a83dc2d19eEf5
  15:        0x10b582f09 - middle::trans::expr::trans_into::hf23cf72a72a546ffGu4
  16:        0x10b5d39e1 - middle::trans::expr::trans_adt::h9ba9f0020fc6ddb7ar6
  17:        0x10b5c0fe8 - middle::trans::expr::trans_rvalue_dps_unadjusted::he07ca709524b78858S5
  18:        0x10b5bf281 - middle::trans::expr::trans_unadjusted::h85d3b8a83dc2d19eEf5
  19:        0x10b584382 - middle::trans::expr::trans::ha3267407ca5ddba4Ay4
  20:        0x10b5d183d - middle::trans::_match::trans_match::h9f4265fbf73063c376j
  21:        0x10b5c09a7 - middle::trans::expr::trans_rvalue_dps_unadjusted::he07ca709524b78858S5
  22:        0x10b582ee9 - middle::trans::expr::trans_into::hf23cf72a72a546ffGu4
  23:        0x10b58223c - middle::trans::controlflow::trans_stmt_semi::he823a76747e978233J0
  24:        0x10b5818b0 - middle::trans::controlflow::trans_stmt::h81b833b282ae446dQF0
  25:        0x10b583138 - middle::trans::controlflow::trans_block::hd7b32b77ecb61a2bWK0
  26:        0x10b62c502 - middle::trans::base::trans_closure::hb1275bd745d019a30Qg
  27:        0x10b575f1a - middle::trans::base::trans_fn::h3b8a7282ce9f4feco2g
  28:        0x10b573655 - middle::trans::base::trans_item::h71d45f92e9d22ff3Hlh
  29:        0x10b635978 - middle::trans::base::trans_crate::h3a3fd248eb88c863yji
  30:        0x10ba7a355 - driver::driver::phase_4_translate_to_llvm::h7182abf670862972XjA
  31:        0x10ba72fe6 - driver::driver::compile_input::h320087e927cf6176RQz
  32:        0x10baf903f - driver::run_compiler::hc4176702d8610954vDD
  33:        0x10baf71c6 - driver::run::closure.145651
  34:        0x10b20843b - task::TaskBuilder<S>::try_future::closure.103161
  35:        0x10b208323 - task::TaskBuilder<S>::spawn_internal::closure.103132
  36:        0x10c4457fd - task::NativeSpawner.Spawner::spawn::closure.8519
  37:        0x10e86d1dc - rust_try_inner
  38:        0x10e86d1c6 - rust_try
  39:        0x10e804287 - unwind::try::h36b9cbf695564505Jjd
  40:        0x10e80410c - task::Task::run::h3041fca9d0c3b994Uzc
  41:        0x10c445622 - task::NativeSpawner.Spawner::spawn::closure.8458
  42:        0x10e805aca - thread::thread_start::hb7e526bd935a9ae15Tc
  43:     0x7fff940a72fc - _pthread_body
  44:     0x7fff940a7279 - _pthread_body

[alexcrichton]

Dupe of #18061, but thanks! #18177 should be a fix for this.