ICE: indexes do not lie on character boundaries with byte literal and \r\n

[alexcrichton]

$ xxd foo.rs
0000000: 666e 2061 2829 207b 6222 5c0d 0a22 7d0a  fn a() {b"\.."}.
0000010: 0a                                       .
$ RUST_BACKTRACE=1 rustc foo.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://doc.rust-lang.org/complement-bugreport.html
note: run with `RUST_BACKTRACE=1` for a backtrace
task 'rustc' failed at 'index 2 and/or 4 in `\
` do not lie on character boundary', /home/rustbuild/src/rust-buildbot/slave/nightly-linux/build/src/libcore/str.rs:1768

stack backtrace:
   1:     0x7febd0162ef0 - rt::backtrace::imp::write::h738a1ec329d2ab70gcq
   2:     0x7febd0165f90 - failure::on_fail::he9f78b437e48797etxq
   3:     0x7febd0944860 - unwind::begin_unwind_inner::he4cbc144b846e4e2D8d
   4:     0x7febd0944550 - unwind::begin_unwind_fmt::h74ea8b12177cb5dd85d
   5:     0x7febd0944510 - rust_begin_unwind
   6:     0x7febd098a010 - failure::begin_unwind::h1acee634f6abe01ec0j
   7:     0x7febcc611080 - str::_&'a str.StrSlice<'a>::slice::hd2359a4b1465e5ce2Bi
   8:     0x7febcc643db0 - parse::byte_lit::h565f1502238b1235TDS
   9:     0x7febcc647360 - parse::binary_lit::h7a2ff40febd7d0d1SHS
  10:     0x7febcc6438b0 - parse::parser::Parser<'a>::lit_from_token::h2619d982bc809899VQJ
  11:     0x7febcc6479a0 - parse::parser::Parser<'a>::parse_lit::hb5dcfc17d4946d3bYSJ
  12:     0x7febcc649480 - parse::parser::Parser<'a>::parse_bottom_expr::hd048ad4072bbb63dR8J
  13:     0x7febcc6512b0 - parse::parser::Parser<'a>::parse_dot_or_call_expr::hf20fe37ea296ddd5hrK
  14:     0x7febcc6540a0 - parse::parser::Parser<'a>::parse_prefix_expr::hf0b790766645ef4c0IK
  15:     0x7febcc655360 - parse::parser::Parser<'a>::parse_binops::hdf675d76b72fe5a5uPK
  16:     0x7febcc655c00 - parse::parser::Parser<'a>::parse_assign_expr::h2ac986e1e60571a2VSK
  17:     0x7febcc657810 - parse::parser::Parser<'a>::parse_stmt::h36b2a72856d89d44tvL
  18:     0x7febcc662c00 - parse::parser::Parser<'a>::parse_block_tail_::h951e9bedaabb2323DGL
  19:     0x7febcc63bb00 - parse::parser::Parser<'a>::parse_inner_attrs_and_block::h5b6c6b27c4431517YEL
  20:     0x7febcc667b20 - parse::parser::Parser<'a>::parse_item_fn::ha36980a5a6b45c0d8jM
  21:     0x7febcc659e60 - parse::parser::Parser<'a>::parse_item_or_view_item::hfd0e5b474e14f140LhN
  22:     0x7febcc664080 - parse::parser::Parser<'a>::parse_items_and_view_items::hcce67098758a89eaGIN
  23:     0x7febcc66a710 - parse::parser::Parser<'a>::parse_mod_items::ha7d070970331324eLEM
  24:     0x7febcc6768b0 - parse::parser::Parser<'a>::parse_crate_mod::ha89f3d3a9b8794d2QNN
  25:     0x7febcc67bab0 - parse::parse_crate_from_file::h1a6e7e81a219b791B4R
  26:     0x7febd1597de0 - driver::driver::phase_1_parse_input::closure.129302
  27:     0x7febd13c1050 - driver::driver::phase_1_parse_input::hf54fd8b219bba0d1P0v
  28:     0x7febd158dcb0 - driver::driver::compile_input::h4d83a8e70f2d899ddWv
  29:     0x7febd162f310 - driver::run_compiler::h94472815a3840836V0y
  30:     0x7febd162f220 - driver::main_args::closure.134819
  31:     0x7febd1641220 - task::TaskBuilder<S>::try_future::closure.135966
  32:     0x7febd1641020 - task::TaskBuilder<S>::spawn_internal::closure.135943
  33:     0x7febd205fdd0 - task::spawn_opts::closure.8306
  34:     0x7febd099bb40 - rust_try
  35:     0x7febd0941ed0 - unwind::try::hb4e1dd4afa7176d00Wd
  36:     0x7febd0941c70 - task::Task::run::h2bae4479a1d71315C4c
  37:     0x7febd205fb90 - task::spawn_opts::closure.8249
  38:     0x7febd0943ab0 - thread::thread_start::h3fdd510979cf01c4Msd
  39:     0x7febcfbf90c0 - start_thread
  40:     0x7febd060d2d9 - __clone
  41:                0x0 - <unknown>

This is one reason rust-openssl cannot compile on windows.