Internal Compiler Error: unexpected panic

[qtigercom]

Rust Version: rustc 1.0.0-nightly (3ef8ff1 2015-02-12 00:38:24 +0000)

Description: When compiling the following code with rustc

use std::ops::{Add};

fn f<T: Add>(a: T, b: T) -> Add::Output {
    a + b
}

fn main() {
    println!("a + b is {}", f::<f32>(100f32, 200f32));
}

the output is:

ERROR:rbml::reader: failed to find block with tag 7
error: internal compiler error: unexpected panic
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 'explicit panic', C:\bot\slave\nightly-dist-rustc-win-64\build\src\librbml\lib.rs:266

stack backtrace:
1: 0x69bfbbeb - sys::backtrace::write::h57b621d79849130fitB
2: 0x69c13974 - rt::unwind::register::h686925f8fa692ab9GSJ
3: 0x69b836ef - rt::unwind::begin_unwind_inner::hc2a974b1bdaa4639YPJ
4: 0x302da8 - reader::maybe_get_doc::h2547f886a15a227erHa
5: 0x301d2f - reader::get_doc::hc198b8918d0de179nLa
6: 0x1138635 - metadata::decoder::item_type::h7f6e008c4a79af18mck
7: 0x11480d9 - metadata::decoder::get_type::h9620389d7a7d23c0Xok
8: 0x10fb7a8 - metadata::csearch::get_type::h3af5a6a2534b2d8bCkn
9: 0x6d605059 - collect::CollectCtxt<'a, 'tcx>.AstConv<'tcx>::get_item_type_scheme::he174d5be00f2627cMFw
10: 0x6d5f49ab - rscope::ShiftedRscope<'r>.RegionScope::anon_regions::h0a5ed4a2d46d3aeeqlu
11: 0x6d5f64ef - rscope::ShiftedRscope<'r>.RegionScope::anon_regions::h0a5ed4a2d46d3aeeqlu
12: 0x6d5978bd - astconv::ast_ty_to_ty::h1dadfccc9ddb5e90VHv
13: 0x6d5ef523 - rscope::ShiftedRscope<'r>.RegionScope::anon_regions::h0a5ed4a2d46d3aeeqlu
14: 0x6d5fa734 - rscope::ShiftedRscope<'r>.RegionScope::anon_regions::h0a5ed4a2d46d3aeeqlu
15: 0x6d61330f - collect::CollectCtxt<'a, 'tcx>.AstConv<'tcx>::tcx::hf449f596d422460aAFw
16: 0x6d60a79a - collect::CollectCtxt<'a, 'tcx>.AstConv<'tcx>::get_item_type_scheme::he174d5be00f2627cMFw
17: 0x6d643867 - check_crate::h72731a5b4298723fkrB
18: 0x6d64131c - check_crate::h72731a5b4298723fkrB
19: 0x70b1eb58 - driver::phase_3_run_analysis_passes::hc863f28a1bd50b11SGa
20: 0x70b02618 - driver::compile_input::hd580d8c011d24ba3Eba
21: 0x70bcfc4c - run_compiler::hb48a33a057cced0e5bc
22: 0x70bcd85b - run::h3df2025cf41d43b3Ibc
23: 0x70bcc56a - run::h3df2025cf41d43b3Ibc
24: 0x69c4180c - rust_try
25: 0x69c417e9 - rust_try
26: 0x70bccbdc - run::h3df2025cf41d43b3Ibc
27: 0x69c03ae2 - sys::tcp::TcpListener::bind::h2319ec78a0f49dc2faF
28: 0x770f59ed - BaseThreadInitThunk

[jdm]

Same error as #21867.