error: internal compiler error: ident only path should have been covered already

[dpc]

src/ui/curses.rs:925:25: 925:31 error: internal compiler error: ident only path should have been covered already                                                [5/1813]
src/ui/curses.rs:925     fn input(&mut self, Option<astate : actor::State>) -> Option<Action> {
                                             ^~~~~~
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
note: run with `RUST_BACKTRACE=1` for a backtrace
thread 'rustc' panicked at 'Box<Any>', /home/rustbuild/src/rust-buildbot/slave/nightly-dist-rustc-linux/build/src/libsyntax/diagnostic.rs:129

stack backtrace:
   1:     0x7f143d757210 - sys::backtrace::write::h58f3688f47ea9825KlC
   2:     0x7f143d77fac0 - panicking::on_panic::h6a53d3220988f2eebYL
   3:     0x7f143d6c0720 - rt::unwind::begin_unwind_inner::h72a0c6e103bfcdc3zCL
   4:     0x7f143a993de0 - rt::unwind::begin_unwind::h2955836616559227712
   5:     0x7f143a993d70 - diagnostic::SpanHandler::span_bug::h3f1d138a57b9309dqZE
   6:     0x7f143a9b6780 - parse::parser::Parser<'a>::parse_pat::h809bd931d91273bfrML
   7:     0x7f143a9af1c0 - parse::parser::Parser<'a>::parse_arg_general::h7f637322c002079335J
   8:     0x7f143a9ddbd0 - parse::parser::Parser<'a>::parse_seq_to_before_end::h6385074398263587049
   9:     0x7f143a9daea0 - parse::parser::Parser<'a>::parse_method::h69be3d43b9c18e71UXM
  10:     0x7f143a9de930 - parse::parser::Parser<'a>::parse_item_impl::hb260387cee1097d8u5M
  11:     0x7f143a9cf6e0 - parse::parser::Parser<'a>::parse_item_::h9be2ca1f12dcd0aeuVN
  12:     0x7f143a9e0c50 - parse::parser::Parser<'a>::parse_mod_items::hb94387fccea63b29KkN
  13:     0x7f143a9e1fe0 - parse::parser::Parser<'a>::eval_src_mod::hcbd8c557b230c4ddKsN
  14:     0x7f143a9cf6e0 - parse::parser::Parser<'a>::parse_item_::h9be2ca1f12dcd0aeuVN
  15:     0x7f143a9e0c50 - parse::parser::Parser<'a>::parse_mod_items::hb94387fccea63b29KkN
  16:     0x7f143a9e1fe0 - parse::parser::Parser<'a>::eval_src_mod::hcbd8c557b230c4ddKsN
  17:     0x7f143a9cf6e0 - parse::parser::Parser<'a>::parse_item_::h9be2ca1f12dcd0aeuVN
  18:     0x7f143a9e0c50 - parse::parser::Parser<'a>::parse_mod_items::hb94387fccea63b29KkN
  19:     0x7f143a9ec1a0 - parse::parser::Parser<'a>::parse_crate_mod::h961b7044a0ca58e2AmO
  20:     0x7f143a9ff060 - parse::parse_crate_from_file::h8fb07d2676fac76cqOV
  21:     0x7f143dde15a0 - driver::phase_1_parse_input::closure.16948
  22:     0x7f143ddbb8d0 - driver::phase_1_parse_input::h49108518c50c4641Qra
  23:     0x7f143ddb82d0 - driver::compile_input::hfb1bb38c59866d0fGba
  24:     0x7f143de87510 - run_compiler::hf2a7d9848e51e3b5Zbc
  25:     0x7f143de85e10 - thunk::F.Invoke<A, R>::invoke::h12698859262113329290
  26:     0x7f143de84d00 - rt::unwind::try::try_fn::h10854600533917764358
  27:     0x7f143d7ec880 - rust_try_inner
  28:     0x7f143d7ec870 - rust_try
  29:     0x7f143de85000 - thunk::F.Invoke<A, R>::invoke::h4174228679526982116
  30:     0x7f143d76bb60 - sys::thread::thread_start::h60ae7cb39d135ef7R4G
  31:     0x7f1437653460 - start_thread
  32:     0x7f143d347769 - clone
  33:                0x0 - <unknown>

rustc 1.0.0-nightly (2b01a37ec 2015-02-21) (built 2015-02-22)

Source commit and place compiler complains about: https://github.com/dpc/rhex/blob/24c1326c2f792fbd5da5305fb8014cdd36a161bb/src/ui/curses.rs#L925

Obviously the syntax is wrong, but I report as I guess compiler should not crash because of it.

[edwardw]

@dpc, what rustc version did you use? #22544 should've fixed this bug.

[dpc]

Confirmed, after rustup the panic went away. Thank you.