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ICE in debug when matching two constants to the same reference #105173

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hashworks opened this issue Dec 2, 2022 · 2 comments
Closed

ICE in debug when matching two constants to the same reference #105173

hashworks opened this issue Dec 2, 2022 · 2 comments
Labels
C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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@hashworks
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hashworks commented Dec 2, 2022 •
edited
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Code

When one creates two constants to the same reference and matches both, a cargo +nightly build debug compile runs into an ICE.

const A: &char = &'A';
const ALSOA: &char = &'A';

fn main() {
    match &'A' {
        A => 0,
        ALSOA => 0,
        _ => 0,
    };
}

With cargo +nightly build --release this builds just fine.

One can also use two match arms for a more reasonable usage:

const A: &char = &'A';
const ALSOA: &char = &'A';

fn main() {
    match &'A' {
        A => 0,
        _ => 0,
    };

    match &'B' {
        ALSOA => 0,
        _ => 0,
    };
}

This happens in both stable and nightly.

I'm not sure how to trigger this with rustc. A simple cargo project created with cargo new works though.

Meta

rustc --version --verbose:

rustc 1.67.0-nightly (c090c6880 2022-12-01)
binary: rustc
commit-hash: c090c6880c0183ba248bde4a16e29ba29ac4fbba
commit-date: 2022-12-01
host: x86_64-unknown-linux-gnu
release: 1.67.0-nightly
LLVM version: 15.0.4

cargo +nightly --version:

cargo 1.67.0-nightly (e027c4b5d 2022-11-25)

Error output

   Compiling const-ref-match-bug v0.1.0 (/home/hashworks/Documents/Projects/Rust/const-ref-match-bug)
thread '<unnamed>' panicked at 'forcing query with already existing `DepNode`
- query-key: ParamEnvAnd { param_env: ParamEnv { caller_bounds: [], reveal: UserFacing, constness: NotConst }, value: Val(Scalar(alloc6), &char) }
- dep-node: deref_mir_constant(fde8d4e96c9678c3-5625764330578e40)', /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/compiler/rustc_query_system/src/dep_graph/graph.rs:316:9
stack backtrace:
   0:     0x7f6d6a96661a - std::backtrace_rs::backtrace::libunwind::trace::hec1c9a33ec35a782
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7f6d6a96661a - std::backtrace_rs::backtrace::trace_unsynchronized::hef44794102f9589c
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f6d6a96661a - std::sys_common::backtrace::_print_fmt::h3d085ebafa3ff4d4
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7f6d6a96661a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1dc483ce0b0acc38
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7f6d6a9c920e - core::fmt::write::hdde74b1f9f025400
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/core/src/fmt/mod.rs:1208:17
   5:     0x7f6d6a956b35 - std::io::Write::write_fmt::h93bb2bce537087eb
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/io/mod.rs:1682:15
   6:     0x7f6d6a9663e5 - std::sys_common::backtrace::_print::hffbee7406e6f5871
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7f6d6a9663e5 - std::sys_common::backtrace::print::ha3e39199dd4aff7e
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7f6d6a96912f - std::panicking::default_hook::{{closure}}::h9d3052b99dbdb269
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/panicking.rs:267:22
   9:     0x7f6d6a968e6b - std::panicking::default_hook::hf85cde60e828679e
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/panicking.rs:286:9
  10:     0x7f6d6a96994c - std::panicking::rust_panic_with_hook::h7bb6b938bd4ce622
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/panicking.rs:688:13
  11:     0x7f6d6a9696e9 - std::panicking::begin_panic_handler::{{closure}}::h894513d3c9ea77f1
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/panicking.rs:579:13
  12:     0x7f6d6a966acc - std::sys_common::backtrace::__rust_end_short_backtrace::h478da9df1dc8d9c3
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/sys_common/backtrace.rs:137:18
  13:     0x7f6d6a9693f2 - rust_begin_unwind
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/panicking.rs:575:5
  14:     0x7f6d6a9c5c23 - core::panicking::panic_fmt::h0f7f0682c1639601
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/core/src/panicking.rs:65:14
  15:     0x7f6d6d396813 - <rustc_query_system[81284d9f3abc9bae]::dep_graph::graph::DepGraph<rustc_middle[46c205e3f9247fc2]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[46c205e3f9247fc2]::ty::context::TyCtxt, rustc_middle[46c205e3f9247fc2]::ty::ParamEnvAnd<rustc_middle[46c205e3f9247fc2]::mir::ConstantKind>, rustc_middle[46c205e3f9247fc2]::mir::ConstantKind>
  16:     0x7f6d6d394eff - rustc_query_system[81284d9f3abc9bae]::query::plumbing::try_execute_query::<rustc_query_impl[8e5827c450177fda]::plumbing::QueryCtxt, rustc_query_system[81284d9f3abc9bae]::query::caches::DefaultCache<rustc_middle[46c205e3f9247fc2]::ty::ParamEnvAnd<rustc_middle[46c205e3f9247fc2]::mir::ConstantKind>, rustc_middle[46c205e3f9247fc2]::mir::ConstantKind>>
  17:     0x7f6d6d3943e2 - rustc_query_system[81284d9f3abc9bae]::query::plumbing::get_query::<rustc_query_impl[8e5827c450177fda]::queries::deref_mir_constant, rustc_query_impl[8e5827c450177fda]::plumbing::QueryCtxt>
  18:     0x7f6d6d3942e7 - <rustc_query_impl[8e5827c450177fda]::Queries as rustc_middle[46c205e3f9247fc2]::ty::query::QueryEngine>::deref_mir_constant
  19:     0x7f6d6c0939da - <rustc_mir_build[cc372544a685ce91]::thir::pattern::const_to_pat::ConstToPat>::recur
  20:     0x7f6d6c090ec6 - <rustc_mir_build[cc372544a685ce91]::thir::pattern::const_to_pat::ConstToPat>::to_pat
  21:     0x7f6d6c090a4e - <rustc_mir_build[cc372544a685ce91]::thir::pattern::PatCtxt>::const_to_pat
  22:     0x7f6d6c08f481 - <rustc_mir_build[cc372544a685ce91]::thir::pattern::PatCtxt>::lower_path
  23:     0x7f6d6c08b56b - <rustc_mir_build[cc372544a685ce91]::thir::pattern::PatCtxt>::lower_pattern
  24:     0x7f6d6bff5fe6 - <rustc_mir_build[cc372544a685ce91]::thir::pattern::check_match::MatchVisitor>::check_match
  25:     0x7f6d6bff5272 - <rustc_mir_build[cc372544a685ce91]::thir::pattern::check_match::MatchVisitor as rustc_hir[8087fa9ceaba5c65]::intravisit::Visitor>::visit_expr
  26:     0x7f6d6c6e166f - rustc_mir_build[cc372544a685ce91]::thir::pattern::check_match::check_match
  27:     0x7f6d6c36561f - <rustc_query_system[81284d9f3abc9bae]::dep_graph::graph::DepGraph<rustc_middle[46c205e3f9247fc2]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[46c205e3f9247fc2]::ty::context::TyCtxt, rustc_span[e9db05e073d6ae0e]::def_id::DefId, ()>
  28:     0x7f6d6c364435 - rustc_query_system[81284d9f3abc9bae]::query::plumbing::try_execute_query::<rustc_query_impl[8e5827c450177fda]::plumbing::QueryCtxt, rustc_query_system[81284d9f3abc9bae]::query::caches::DefaultCache<rustc_span[e9db05e073d6ae0e]::def_id::DefId, ()>>
  29:     0x7f6d6d3cfc05 - rustc_data_structures[59f892ce3f414ea5]::sync::par_for_each_in::<&[rustc_span[e9db05e073d6ae0e]::def_id::LocalDefId], <rustc_middle[46c205e3f9247fc2]::hir::map::Map>::par_body_owners<rustc_interface[163ae487477d9c3c]::passes::analysis::{closure#1}::{closure#0}::{closure#0}::{closure#0}>::{closure#0}>
  30:     0x7f6d6d3cf743 - <rustc_session[72ee2d53e3941d51]::session::Session>::time::<(), rustc_interface[163ae487477d9c3c]::passes::analysis::{closure#1}::{closure#0}::{closure#0}>
  31:     0x7f6d6c068b3b - <rustc_session[72ee2d53e3941d51]::session::Session>::time::<(), rustc_interface[163ae487477d9c3c]::passes::analysis::{closure#1}>
  32:     0x7f6d6c067210 - rustc_interface[163ae487477d9c3c]::passes::analysis
  33:     0x7f6d6d3f60ef - <rustc_query_system[81284d9f3abc9bae]::dep_graph::graph::DepGraph<rustc_middle[46c205e3f9247fc2]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[46c205e3f9247fc2]::ty::context::TyCtxt, (), core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>
  34:     0x7f6d6d3f4d97 - rustc_query_system[81284d9f3abc9bae]::query::plumbing::try_execute_query::<rustc_query_impl[8e5827c450177fda]::plumbing::QueryCtxt, rustc_query_system[81284d9f3abc9bae]::query::caches::DefaultCache<(), core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>>
  35:     0x7f6d6d3f47f0 - rustc_query_system[81284d9f3abc9bae]::query::plumbing::get_query::<rustc_query_impl[8e5827c450177fda]::queries::analysis, rustc_query_impl[8e5827c450177fda]::plumbing::QueryCtxt>
  36:     0x7f6d6cefa47b - <rustc_interface[163ae487477d9c3c]::passes::QueryContext>::enter::<rustc_driver[daadfd6292eb5d9f]::run_compiler::{closure#1}::{closure#2}::{closure#2}, core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>
  37:     0x7f6d6cef2a0e - <rustc_interface[163ae487477d9c3c]::interface::Compiler>::enter::<rustc_driver[daadfd6292eb5d9f]::run_compiler::{closure#1}::{closure#2}, core[e5d1a7e8c6989fb6]::result::Result<core[e5d1a7e8c6989fb6]::option::Option<rustc_interface[163ae487477d9c3c]::queries::Linker>, rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>
  38:     0x7f6d6ceeda28 - rustc_span[e9db05e073d6ae0e]::with_source_map::<core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>, rustc_interface[163ae487477d9c3c]::interface::run_compiler<core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>, rustc_driver[daadfd6292eb5d9f]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
  39:     0x7f6d6ceed515 - <scoped_tls[e75e6c3262949904]::ScopedKey<rustc_span[e9db05e073d6ae0e]::SessionGlobals>>::set::<rustc_interface[163ae487477d9c3c]::interface::run_compiler<core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>, rustc_driver[daadfd6292eb5d9f]::run_compiler::{closure#1}>::{closure#0}, core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>
  40:     0x7f6d6ceecb02 - std[819d5ca3b5620c33]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[163ae487477d9c3c]::util::run_in_thread_pool_with_globals<rustc_interface[163ae487477d9c3c]::interface::run_compiler<core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>, rustc_driver[daadfd6292eb5d9f]::run_compiler::{closure#1}>::{closure#0}, core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>
  41:     0x7f6d6ceec818 - <<std[819d5ca3b5620c33]::thread::Builder>::spawn_unchecked_<rustc_interface[163ae487477d9c3c]::util::run_in_thread_pool_with_globals<rustc_interface[163ae487477d9c3c]::interface::run_compiler<core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>, rustc_driver[daadfd6292eb5d9f]::run_compiler::{closure#1}>::{closure#0}, core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>::{closure#1} as core[e5d1a7e8c6989fb6]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  42:     0x7f6d6ea8c8d3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd0b2a5e0dbe3c403
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/alloc/src/boxed.rs:2000:9
  43:     0x7f6d6ea8c8d3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h082e01feb1661ff6
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/alloc/src/boxed.rs:2000:9
  44:     0x7f6d6ea8c8d3 - std::sys::unix::thread::Thread::new::thread_start::hf94610e63e426d69
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/sys/unix/thread.rs:108:17
  45:     0x7f6d6a7068fd - <unknown>
  46:     0x7f6d6a788a60 - <unknown>
  47:                0x0 - <unknown>
error: could not compile `const-ref-match-bug`
Backtrace 

   Compiling const-ref-match-bug v0.1.0 (/home/hashworks/Documents/Projects/Rust/const-ref-match-bug)
thread '<unnamed>' panicked at 'forcing query with already existing `DepNode`
- query-key: ParamEnvAnd { param_env: ParamEnv { caller_bounds: [], reveal: UserFacing, constness: NotConst }, value: Val(Scalar(alloc6), &char) }
- dep-node: deref_mir_constant(fde8d4e96c9678c3-5625764330578e40)', /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/compiler/rustc_query_system/src/dep_graph/graph.rs:316:9
stack backtrace:
   0: rust_begin_unwind
             at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/panicking.rs:575:5
   1: core::panicking::panic_fmt
             at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/core/src/panicking.rs:65:14
   2: <rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle::ty::context::TyCtxt, rustc_middle::ty::ParamEnvAnd<rustc_middle::mir::ConstantKind>, rustc_middle::mir::ConstantKind>
   3: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<rustc_middle::ty::ParamEnvAnd<rustc_middle::mir::ConstantKind>, rustc_middle::mir::ConstantKind>>
   4: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::deref_mir_constant, rustc_query_impl::plumbing::QueryCtxt>
   5: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::deref_mir_constant
   6: <rustc_mir_build::thir::pattern::const_to_pat::ConstToPat>::recur
   7: <rustc_mir_build::thir::pattern::const_to_pat::ConstToPat>::to_pat
   8: <rustc_mir_build::thir::pattern::PatCtxt>::const_to_pat
   9: <rustc_mir_build::thir::pattern::PatCtxt>::lower_path
  10: <rustc_mir_build::thir::pattern::PatCtxt>::lower_pattern
  11: <rustc_mir_build::thir::pattern::check_match::MatchVisitor>::check_match
  12: <rustc_mir_build::thir::pattern::check_match::MatchVisitor as rustc_hir::intravisit::Visitor>::visit_expr
  13: rustc_mir_build::thir::pattern::check_match::check_match
  14: <rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle::ty::context::TyCtxt, rustc_span::def_id::DefId, ()>
  15: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, ()>>
  16: rustc_data_structures::sync::par_for_each_in::<&[rustc_span::def_id::LocalDefId], <rustc_middle::hir::map::Map>::par_body_owners<rustc_interface::passes::analysis::{closure#1}::{closure#0}::{closure#0}::{closure#0}>::{closure#0}>
  17: <rustc_session::session::Session>::time::<(), rustc_interface::passes::analysis::{closure#1}::{closure#0}::{closure#0}>
  18: <rustc_session::session::Session>::time::<(), rustc_interface::passes::analysis::{closure#1}>
  19: rustc_interface::passes::analysis
  20: <rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle::ty::context::TyCtxt, (), core::result::Result<(), rustc_errors::ErrorGuaranteed>>
  21: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<(), core::result::Result<(), rustc_errors::ErrorGuaranteed>>>
  22: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::analysis, rustc_query_impl::plumbing::QueryCtxt>
  23: <rustc_interface::passes::QueryContext>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}::{closure#2}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>
  24: <rustc_interface::interface::Compiler>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}, core::result::Result<core::option::Option<rustc_interface::queries::Linker>, rustc_errors::ErrorGuaranteed>>
  25: rustc_span::with_source_map::<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
  26: <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
error: could not compile `const-ref-match-bug`
sion::Session>::time::<(), rustc_interface::passes::analysis::{closure#1}>
  19: rustc_interface::passes::analysis
  20: <rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle::ty::context::TyCtxt, (), core::result::Result<(), rustc_errors::ErrorGuaranteed>>
  21: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<(), core::result::Result<(), rustc_errors::ErrorGuaranteed>>>
  22: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::analysis, rustc_query_impl::plumbing::QueryCtxt>
  23: <rustc_interface::passes::QueryContext>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}::{closure#2}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>
  24: <rustc_interface::interface::Compiler>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}, core::result::Result<core::option::Option<rustc_interface::queries::Linker>, rustc_errors::ErrorGuaranteed>>
  25: rustc_span::with_source_map::<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
  26: <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
error: could not compile `const-ref-match-bug`

Backtrace Full 

   Compiling const-ref-match-bug v0.1.0 (/home/hashworks/Documents/Projects/Rust/const-ref-match-bug)
thread '<unnamed>' panicked at 'forcing query with already existing `DepNode`
- query-key: ParamEnvAnd { param_env: ParamEnv { caller_bounds: [], reveal: UserFacing, constness: NotConst }, value: Val(Scalar(alloc6), &char) }
- dep-node: deref_mir_constant(fde8d4e96c9678c3-5625764330578e40)', /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/compiler/rustc_query_system/src/dep_graph/graph.rs:316:9
stack backtrace:
   0:     0x7fb445b6661a - std::backtrace_rs::backtrace::libunwind::trace::hec1c9a33ec35a782
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7fb445b6661a - std::backtrace_rs::backtrace::trace_unsynchronized::hef44794102f9589c
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fb445b6661a - std::sys_common::backtrace::_print_fmt::h3d085ebafa3ff4d4
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7fb445b6661a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1dc483ce0b0acc38
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7fb445bc920e - core::fmt::write::hdde74b1f9f025400
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/core/src/fmt/mod.rs:1208:17
   5:     0x7fb445b56b35 - std::io::Write::write_fmt::h93bb2bce537087eb
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/io/mod.rs:1682:15
   6:     0x7fb445b663e5 - std::sys_common::backtrace::_print::hffbee7406e6f5871
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7fb445b663e5 - std::sys_common::backtrace::print::ha3e39199dd4aff7e
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7fb445b6912f - std::panicking::default_hook::{{closure}}::h9d3052b99dbdb269
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/panicking.rs:267:22
   9:     0x7fb445b68e6b - std::panicking::default_hook::hf85cde60e828679e
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/panicking.rs:286:9
  10:     0x7fb445b6994c - std::panicking::rust_panic_with_hook::h7bb6b938bd4ce622
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/panicking.rs:688:13
  11:     0x7fb445b696e9 - std::panicking::begin_panic_handler::{{closure}}::h894513d3c9ea77f1
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/panicking.rs:579:13
  12:     0x7fb445b66acc - std::sys_common::backtrace::__rust_end_short_backtrace::h478da9df1dc8d9c3
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/sys_common/backtrace.rs:137:18
  13:     0x7fb445b693f2 - rust_begin_unwind
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/panicking.rs:575:5
  14:     0x7fb445bc5c23 - core::panicking::panic_fmt::h0f7f0682c1639601
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/core/src/panicking.rs:65:14
  15:     0x7fb448596813 - <rustc_query_system[81284d9f3abc9bae]::dep_graph::graph::DepGraph<rustc_middle[46c205e3f9247fc2]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[46c205e3f9247fc2]::ty::context::TyCtxt, rustc_middle[46c205e3f9247fc2]::ty::ParamEnvAnd<rustc_middle[46c205e3f9247fc2]::mir::ConstantKind>, rustc_middle[46c205e3f9247fc2]::mir::ConstantKind>
  16:     0x7fb448594eff - rustc_query_system[81284d9f3abc9bae]::query::plumbing::try_execute_query::<rustc_query_impl[8e5827c450177fda]::plumbing::QueryCtxt, rustc_query_system[81284d9f3abc9bae]::query::caches::DefaultCache<rustc_middle[46c205e3f9247fc2]::ty::ParamEnvAnd<rustc_middle[46c205e3f9247fc2]::mir::ConstantKind>, rustc_middle[46c205e3f9247fc2]::mir::ConstantKind>>
  17:     0x7fb4485943e2 - rustc_query_system[81284d9f3abc9bae]::query::plumbing::get_query::<rustc_query_impl[8e5827c450177fda]::queries::deref_mir_constant, rustc_query_impl[8e5827c450177fda]::plumbing::QueryCtxt>
  18:     0x7fb4485942e7 - <rustc_query_impl[8e5827c450177fda]::Queries as rustc_middle[46c205e3f9247fc2]::ty::query::QueryEngine>::deref_mir_constant
  19:     0x7fb4472939da - <rustc_mir_build[cc372544a685ce91]::thir::pattern::const_to_pat::ConstToPat>::recur
  20:     0x7fb447290ec6 - <rustc_mir_build[cc372544a685ce91]::thir::pattern::const_to_pat::ConstToPat>::to_pat
  21:     0x7fb447290a4e - <rustc_mir_build[cc372544a685ce91]::thir::pattern::PatCtxt>::const_to_pat
  22:     0x7fb44728f481 - <rustc_mir_build[cc372544a685ce91]::thir::pattern::PatCtxt>::lower_path
  23:     0x7fb44728b56b - <rustc_mir_build[cc372544a685ce91]::thir::pattern::PatCtxt>::lower_pattern
  24:     0x7fb4471f5fe6 - <rustc_mir_build[cc372544a685ce91]::thir::pattern::check_match::MatchVisitor>::check_match
  25:     0x7fb4471f5272 - <rustc_mir_build[cc372544a685ce91]::thir::pattern::check_match::MatchVisitor as rustc_hir[8087fa9ceaba5c65]::intravisit::Visitor>::visit_expr
  26:     0x7fb4478e166f - rustc_mir_build[cc372544a685ce91]::thir::pattern::check_match::check_match
  27:     0x7fb44756561f - <rustc_query_system[81284d9f3abc9bae]::dep_graph::graph::DepGraph<rustc_middle[46c205e3f9247fc2]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[46c205e3f9247fc2]::ty::context::TyCtxt, rustc_span[e9db05e073d6ae0e]::def_id::DefId, ()>
  28:     0x7fb447564435 - rustc_query_system[81284d9f3abc9bae]::query::plumbing::try_execute_query::<rustc_query_impl[8e5827c450177fda]::plumbing::QueryCtxt, rustc_query_system[81284d9f3abc9bae]::query::caches::DefaultCache<rustc_span[e9db05e073d6ae0e]::def_id::DefId, ()>>
  29:     0x7fb4485cfc05 - rustc_data_structures[59f892ce3f414ea5]::sync::par_for_each_in::<&[rustc_span[e9db05e073d6ae0e]::def_id::LocalDefId], <rustc_middle[46c205e3f9247fc2]::hir::map::Map>::par_body_owners<rustc_interface[163ae487477d9c3c]::passes::analysis::{closure#1}::{closure#0}::{closure#0}::{closure#0}>::{closure#0}>
  30:     0x7fb4485cf743 - <rustc_session[72ee2d53e3941d51]::session::Session>::time::<(), rustc_interface[163ae487477d9c3c]::passes::analysis::{closure#1}::{closure#0}::{closure#0}>
  31:     0x7fb447268b3b - <rustc_session[72ee2d53e3941d51]::session::Session>::time::<(), rustc_interface[163ae487477d9c3c]::passes::analysis::{closure#1}>
  32:     0x7fb447267210 - rustc_interface[163ae487477d9c3c]::passes::analysis
  33:     0x7fb4485f60ef - <rustc_query_system[81284d9f3abc9bae]::dep_graph::graph::DepGraph<rustc_middle[46c205e3f9247fc2]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[46c205e3f9247fc2]::ty::context::TyCtxt, (), core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>
  34:     0x7fb4485f4d97 - rustc_query_system[81284d9f3abc9bae]::query::plumbing::try_execute_query::<rustc_query_impl[8e5827c450177fda]::plumbing::QueryCtxt, rustc_query_system[81284d9f3abc9bae]::query::caches::DefaultCache<(), core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>>
  35:     0x7fb4485f47f0 - rustc_query_system[81284d9f3abc9bae]::query::plumbing::get_query::<rustc_query_impl[8e5827c450177fda]::queries::analysis, rustc_query_impl[8e5827c450177fda]::plumbing::QueryCtxt>
  36:     0x7fb4480fa47b - <rustc_interface[163ae487477d9c3c]::passes::QueryContext>::enter::<rustc_driver[daadfd6292eb5d9f]::run_compiler::{closure#1}::{closure#2}::{closure#2}, core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>
  37:     0x7fb4480f2a0e - <rustc_interface[163ae487477d9c3c]::interface::Compiler>::enter::<rustc_driver[daadfd6292eb5d9f]::run_compiler::{closure#1}::{closure#2}, core[e5d1a7e8c6989fb6]::result::Result<core[e5d1a7e8c6989fb6]::option::Option<rustc_interface[163ae487477d9c3c]::queries::Linker>, rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>
  38:     0x7fb4480eda28 - rustc_span[e9db05e073d6ae0e]::with_source_map::<core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>, rustc_interface[163ae487477d9c3c]::interface::run_compiler<core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>, rustc_driver[daadfd6292eb5d9f]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
  39:     0x7fb4480ed515 - <scoped_tls[e75e6c3262949904]::ScopedKey<rustc_span[e9db05e073d6ae0e]::SessionGlobals>>::set::<rustc_interface[163ae487477d9c3c]::interface::run_compiler<core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>, rustc_driver[daadfd6292eb5d9f]::run_compiler::{closure#1}>::{closure#0}, core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>
  40:     0x7fb4480ecb02 - std[819d5ca3b5620c33]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[163ae487477d9c3c]::util::run_in_thread_pool_with_globals<rustc_interface[163ae487477d9c3c]::interface::run_compiler<core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>, rustc_driver[daadfd6292eb5d9f]::run_compiler::{closure#1}>::{closure#0}, core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>
  41:     0x7fb4480ec818 - <<std[819d5ca3b5620c33]::thread::Builder>::spawn_unchecked_<rustc_interface[163ae487477d9c3c]::util::run_in_thread_pool_with_globals<rustc_interface[163ae487477d9c3c]::interface::run_compiler<core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>, rustc_driver[daadfd6292eb5d9f]::run_compiler::{closure#1}>::{closure#0}, core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[e5d1a7e8c6989fb6]::result::Result<(), rustc_errors[7f7a26e842223f7b]::ErrorGuaranteed>>::{closure#1} as core[e5d1a7e8c6989fb6]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  42:     0x7fb449c8c8d3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd0b2a5e0dbe3c403
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/alloc/src/boxed.rs:2000:9
  43:     0x7fb449c8c8d3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h082e01feb1661ff6
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/alloc/src/boxed.rs:2000:9
  44:     0x7fb449c8c8d3 - std::sys::unix::thread::Thread::new::thread_start::hf94610e63e426d69
                               at /rustc/c090c6880c0183ba248bde4a16e29ba29ac4fbba/library/std/src/sys/unix/thread.rs:108:17
  45:     0x7fb4459068fd - <unknown>
  46:     0x7fb445988a60 - <unknown>
  47:                0x0 - <unknown>
error: could not compile `const-ref-match-bug`

@hashworks hashworks added C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Dec 2, 2022
@matthiaskrgr
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probably duplicate of #83085

@apiraino
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Closing in favor of #83085 (has a patch for fixing the issue in progress)

@apiraino apiraino closed this as not planned Won't fix, can't repro, duplicate, stale Dec 22, 2022
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C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
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@matthiaskrgr @hashworks @apiraino