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ICE: Unexpected type for 'Single' constructor #117100

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#116821
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ICE: Unexpected type for 'Single' constructor#117100
#116821
Labels
A-exhaustiveness-checkingRelating to exhaustiveness / usefulness checking of patternsA-patternsRelating to patterns and pattern matchingC-bugCategory: This is a bug.I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.

Description

@matthiaskrgr
matthiaskrgr
opened on Oct 23, 2023

File: /tmp/icemaker/81DF126D24557409A8EFD18AB1CCB3D2E8119C89297C34BA28DE025833020886.rs

auto-reduced (treereduce-rust):

fn enum_upvar() {
    type T = impl Copy;
    let foo: T = Some((1u32, 2u32));
    let x = move || match foo {
        Foo => (),
        Some((a, b)) => (),
    };
}
original code

original:

#![feature(type_alias_impl_trait)]
// check-pass

fn main() {
    type T = impl Copy;
    let foo: T = Some((1u32, 2u32));
    match foo {
        None => (),
        Some((a, b)) => (),
    }
}

fn upvar() {
    #[derive(Copy, Clone)]
    struct Foo((u32, u32));

    type T = impl Copy;
    let foo: T = Foo((1u32, 2u32));
    let x = move || {
        let Foo((a, b)) = foo;
    };
}

fn enum_upvar() {
    type T = impl Copy;
    let foo: T = Some((1u32, 2u32));
    let x = move || {
        match foo {
            Foo => (),
            Some((a, b)) => (),
        }
    };
}

fn r#struct() {
    #[derive(Copy, Clone)]
    struct Foo((u32, u32));

    type U = impl Copy;
    let foo: U = Foo((1u32, 2u32));
    let Foo((a, b)) = foo;
}

mod only_pattern {
    type T = impl Copy;

    fn foo(foo: T) {
        let (mut x, mut y) = foo;
        x = 42;
        y = "foo";
    }

    type U = impl Copy;

    fn bar(bar: Option<U>) {
        match bar {
            Some((mut x, mut y)) => {
                x = 42;
                y = "foo";
            }
            None => {}
        }
    }
}

mod only_pattern_rpit {
    #[allow(unconditional_recursion)]
    fn foo(b: bool) -> impl Copy {
        let (mut x, mut y) = foo(false);
        x = 42;
        y = "foo";
        if b {
            panic!()
        } else {
            foo(true)
        }
    }

    fn bar(b: bool) -> Option<impl Copy> {
        if b {
            return None;
        }
        match bar(!b) {
            Some((mut x, mut y)) => {
                x = 42;
                y = "foo";
            }
            None => {}
        }
        None
    }
}

Version information

rustc 1.75.0-nightly (e2068cdb0 2023-10-23)
binary: rustc
commit-hash: e2068cdb0964ccbae614ab60cddeed7b24473cdd
commit-date: 2023-10-23
host: x86_64-unknown-linux-gnu
release: 1.75.0-nightly
LLVM version: 17.0.3

Command:
/home/matthias/.rustup/toolchains/master/bin/rustc -Zcrate-attr=feature(non_exhaustive_omitted_patterns_lint) -Wnon-exhaustive-omitted-patterns

Program output 

error[E0658]: `impl Trait` in type aliases is unstable
 --> /tmp/icemaker_global_tempdir.XldkPeZXsiM8/rustc_testrunner_tmpdir_reporting.HnpgDO2rOy70/mvce.rs:2:14
  |
2 |     type T = impl Copy;
  |              ^^^^^^^^^
  |
  = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
  = help: add `#![feature(type_alias_impl_trait)]` to the crate attributes to enable

error[E0601]: `main` function not found in crate `mvce`
 --> /tmp/icemaker_global_tempdir.XldkPeZXsiM8/rustc_testrunner_tmpdir_reporting.HnpgDO2rOy70/mvce.rs:8:2
  |
8 | }
  |  ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.XldkPeZXsiM8/rustc_testrunner_tmpdir_reporting.HnpgDO2rOy70/mvce.rs`

warning: unused variable: `x`
 --> /tmp/icemaker_global_tempdir.XldkPeZXsiM8/rustc_testrunner_tmpdir_reporting.HnpgDO2rOy70/mvce.rs:4:9
  |
4 |     let x = move || match foo {
  |         ^ help: if this is intentional, prefix it with an underscore: `_x`
  |
  = note: `#[warn(unused_variables)]` on by default

error: internal compiler error: compiler/rustc_mir_build/src/thir/pattern/deconstruct_pat.rs:688:22: Unexpected type for `Single` constructor: Alias(Opaque, AliasTy { args: [], def_id: DefId(0:6 ~ mvce[9309]::enum_upvar::T::{opaque#0}) })

thread 'rustc' panicked at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/compiler/rustc_errors/src/lib.rs:1659:9:
Box<dyn Any>
stack backtrace:
   0:     0x7f623476917c - std::backtrace_rs::backtrace::libunwind::trace::h4bc45ce9b5e3ecb5
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7f623476917c - std::backtrace_rs::backtrace::trace_unsynchronized::h77fef45dac28db31
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f623476917c - std::sys_common::backtrace::_print_fmt::h062a8512ed8cd5cc
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/std/src/sys_common/backtrace.rs:67:5
   3:     0x7f623476917c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hd074e811727bbea6
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7f62347cb400 - core::fmt::rt::Argument::fmt::hc0fbbf578e30bc2c
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/core/src/fmt/rt.rs:142:9
   5:     0x7f62347cb400 - core::fmt::write::he36b68adc7e6be82
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/core/src/fmt/mod.rs:1117:17
   6:     0x7f623475d09f - std::io::Write::write_fmt::hf5123e49f0129c06
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/std/src/io/mod.rs:1762:15
   7:     0x7f6234768f64 - std::sys_common::backtrace::_print::h6da84f440ebc0da4
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x7f6234768f64 - std::sys_common::backtrace::print::hc890a71d29bf133e
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x7f623476bbf7 - std::panicking::default_hook::{{closure}}::h5007462eb02fe0f7
  10:     0x7f623476b95f - std::panicking::default_hook::h74cd236d286fc688
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/std/src/panicking.rs:292:9
  11:     0x7f62372af240 - std[2f4a0694a58cda61]::panicking::update_hook::<alloc[fcaa6962a6f8cc73]::boxed::Box<rustc_driver_impl[d38002856561e974]::install_ice_hook::{closure#0}>>::{closure#0}
  12:     0x7f623476c338 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3d000bb31fc13980
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/alloc/src/boxed.rs:2021:9
  13:     0x7f623476c338 - std::panicking::rust_panic_with_hook::hcafe47f43a083fd9
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/std/src/panicking.rs:735:13
  14:     0x7f6237673784 - std[2f4a0694a58cda61]::panicking::begin_panic::<rustc_errors[fe61904af5203354]::ExplicitBug>::{closure#0}
  15:     0x7f6237665d76 - std[2f4a0694a58cda61]::sys_common::backtrace::__rust_end_short_backtrace::<std[2f4a0694a58cda61]::panicking::begin_panic<rustc_errors[fe61904af5203354]::ExplicitBug>::{closure#0}, !>
  16:     0x7f6237656536 - std[2f4a0694a58cda61]::panicking::begin_panic::<rustc_errors[fe61904af5203354]::ExplicitBug>
  17:     0x7f623764d594 - <rustc_errors[fe61904af5203354]::HandlerInner>::bug::<alloc[fcaa6962a6f8cc73]::string::String>
  18:     0x7f623764d354 - <rustc_errors[fe61904af5203354]::Handler>::bug::<alloc[fcaa6962a6f8cc73]::string::String>
  19:     0x7f62376ece6d - rustc_middle[cdc9403fb0d2bf23]::util::bug::opt_span_bug_fmt::<rustc_span[b1c0d326828bdf7]::span_encoding::Span>::{closure#0}
  20:     0x7f62376d3e4a - rustc_middle[cdc9403fb0d2bf23]::ty::context::tls::with_opt::<rustc_middle[cdc9403fb0d2bf23]::util::bug::opt_span_bug_fmt<rustc_span[b1c0d326828bdf7]::span_encoding::Span>::{closure#0}, !>::{closure#0}
  21:     0x7f62376d3d08 - rustc_middle[cdc9403fb0d2bf23]::ty::context::tls::with_context_opt::<rustc_middle[cdc9403fb0d2bf23]::ty::context::tls::with_opt<rustc_middle[cdc9403fb0d2bf23]::util::bug::opt_span_bug_fmt<rustc_span[b1c0d326828bdf7]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  22:     0x7f62357d5a50 - rustc_middle[cdc9403fb0d2bf23]::util::bug::bug_fmt
  23:     0x7f62399529b1 - <rustc_mir_build[b597ffe59bdba8da]::thir::pattern::deconstruct_pat::Constructor>::arity.cold.0
  24:     0x7f623775f0ba - rustc_mir_build[b597ffe59bdba8da]::thir::pattern::usefulness::collect_nonexhaustive_missing_variants
  25:     0x7f62386ff965 - rustc_mir_build[b597ffe59bdba8da]::thir::pattern::usefulness::compute_match_usefulness
  26:     0x7f62355e79c1 - <rustc_mir_build[b597ffe59bdba8da]::thir::pattern::check_match::MatchVisitor as rustc_middle[cdc9403fb0d2bf23]::thir::visit::Visitor>::visit_expr
  27:     0x7f62355e70a9 - <rustc_mir_build[b597ffe59bdba8da]::thir::pattern::check_match::MatchVisitor as rustc_middle[cdc9403fb0d2bf23]::thir::visit::Visitor>::visit_expr
  28:     0x7f62388d468a - rustc_mir_build[b597ffe59bdba8da]::thir::pattern::check_match::check_match
  29:     0x7f62388d4417 - rustc_query_impl[7a9350cb63c32305]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[7a9350cb63c32305]::query_impl::check_match::dynamic_query::{closure#2}::{closure#0}, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 1usize]>>
  30:     0x7f62388d3e2b - rustc_query_system[36043fee951be75c]::query::plumbing::try_execute_query::<rustc_query_impl[7a9350cb63c32305]::DynamicConfig<rustc_query_system[36043fee951be75c]::query::caches::VecCache<rustc_span[b1c0d326828bdf7]::def_id::LocalDefId, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[7a9350cb63c32305]::plumbing::QueryCtxt, false>
  31:     0x7f62388d3bdd - rustc_query_impl[7a9350cb63c32305]::query_impl::check_match::get_query_non_incr::__rust_end_short_backtrace
  32:     0x7f62389ce39c - rustc_mir_build[b597ffe59bdba8da]::build::mir_built
  33:     0x7f62389ce1bb - rustc_query_impl[7a9350cb63c32305]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[7a9350cb63c32305]::query_impl::mir_built::dynamic_query::{closure#2}::{closure#0}, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>
  34:     0x7f623849a96c - rustc_query_system[36043fee951be75c]::query::plumbing::try_execute_query::<rustc_query_impl[7a9350cb63c32305]::DynamicConfig<rustc_query_system[36043fee951be75c]::query::caches::VecCache<rustc_span[b1c0d326828bdf7]::def_id::LocalDefId, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[7a9350cb63c32305]::plumbing::QueryCtxt, false>
  35:     0x7f623849a350 - rustc_query_impl[7a9350cb63c32305]::query_impl::mir_built::get_query_non_incr::__rust_end_short_backtrace
  36:     0x7f623664cd2e - rustc_mir_transform[9daa006cdf909815]::check_unsafety::unsafety_check_result
  37:     0x7f623849a747 - rustc_query_impl[7a9350cb63c32305]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[7a9350cb63c32305]::query_impl::unsafety_check_result::dynamic_query::{closure#2}::{closure#0}, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>
  38:     0x7f623849a96c - rustc_query_system[36043fee951be75c]::query::plumbing::try_execute_query::<rustc_query_impl[7a9350cb63c32305]::DynamicConfig<rustc_query_system[36043fee951be75c]::query::caches::VecCache<rustc_span[b1c0d326828bdf7]::def_id::LocalDefId, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[7a9350cb63c32305]::plumbing::QueryCtxt, false>
  39:     0x7f623849a410 - rustc_query_impl[7a9350cb63c32305]::query_impl::unsafety_check_result::get_query_non_incr::__rust_end_short_backtrace
  40:     0x7f62366500ce - rustc_mir_transform[9daa006cdf909815]::check_unsafety::unsafety_check_result
  41:     0x7f623849a747 - rustc_query_impl[7a9350cb63c32305]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[7a9350cb63c32305]::query_impl::unsafety_check_result::dynamic_query::{closure#2}::{closure#0}, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>
  42:     0x7f623849a96c - rustc_query_system[36043fee951be75c]::query::plumbing::try_execute_query::<rustc_query_impl[7a9350cb63c32305]::DynamicConfig<rustc_query_system[36043fee951be75c]::query::caches::VecCache<rustc_span[b1c0d326828bdf7]::def_id::LocalDefId, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[7a9350cb63c32305]::plumbing::QueryCtxt, false>
  43:     0x7f623849a410 - rustc_query_impl[7a9350cb63c32305]::query_impl::unsafety_check_result::get_query_non_incr::__rust_end_short_backtrace
  44:     0x7f623849b45a - rustc_mir_transform[9daa006cdf909815]::mir_const
  45:     0x7f623849b3a7 - rustc_query_impl[7a9350cb63c32305]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[7a9350cb63c32305]::query_impl::mir_const::dynamic_query::{closure#2}::{closure#0}, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>
  46:     0x7f623849a96c - rustc_query_system[36043fee951be75c]::query::plumbing::try_execute_query::<rustc_query_impl[7a9350cb63c32305]::DynamicConfig<rustc_query_system[36043fee951be75c]::query::caches::VecCache<rustc_span[b1c0d326828bdf7]::def_id::LocalDefId, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[7a9350cb63c32305]::plumbing::QueryCtxt, false>
  47:     0x7f623849a4d0 - rustc_query_impl[7a9350cb63c32305]::query_impl::mir_const::get_query_non_incr::__rust_end_short_backtrace
  48:     0x7f62368c6c73 - rustc_mir_transform[9daa006cdf909815]::mir_promoted
  49:     0x7f62388d4d92 - rustc_query_impl[7a9350cb63c32305]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[7a9350cb63c32305]::query_impl::mir_promoted::dynamic_query::{closure#2}::{closure#0}, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 16usize]>>
  50:     0x7f62388d4fea - rustc_query_system[36043fee951be75c]::query::plumbing::try_execute_query::<rustc_query_impl[7a9350cb63c32305]::DynamicConfig<rustc_query_system[36043fee951be75c]::query::caches::VecCache<rustc_span[b1c0d326828bdf7]::def_id::LocalDefId, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[7a9350cb63c32305]::plumbing::QueryCtxt, false>
  51:     0x7f62388d4c93 - rustc_query_impl[7a9350cb63c32305]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace
  52:     0x7f6239185603 - rustc_borrowck[14a9d49ebe9cc411]::mir_borrowck
  53:     0x7f623918556f - rustc_query_impl[7a9350cb63c32305]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[7a9350cb63c32305]::query_impl::mir_borrowck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>
  54:     0x7f623849a96c - rustc_query_system[36043fee951be75c]::query::plumbing::try_execute_query::<rustc_query_impl[7a9350cb63c32305]::DynamicConfig<rustc_query_system[36043fee951be75c]::query::caches::VecCache<rustc_span[b1c0d326828bdf7]::def_id::LocalDefId, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[7a9350cb63c32305]::plumbing::QueryCtxt, false>
  55:     0x7f623849a590 - rustc_query_impl[7a9350cb63c32305]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace
  56:     0x7f62373c72fa - <rustc_hir_analysis[4f5f2fc3d25550fe]::collect::type_of::opaque::TaitConstraintLocator>::check
  57:     0x7f62373b8050 - <rustc_hir_analysis[4f5f2fc3d25550fe]::collect::type_of::opaque::TaitConstraintLocator as rustc_hir[101d9aa3d11e5aaf]::intravisit::Visitor>::visit_item
  58:     0x7f6238e1396d - rustc_hir_analysis[4f5f2fc3d25550fe]::collect::type_of::type_of_opaque
  59:     0x7f6238e1315b - rustc_query_impl[7a9350cb63c32305]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[7a9350cb63c32305]::query_impl::type_of_opaque::dynamic_query::{closure#2}::{closure#0}, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>
  60:     0x7f6238461205 - rustc_query_system[36043fee951be75c]::query::plumbing::try_execute_query::<rustc_query_impl[7a9350cb63c32305]::DynamicConfig<rustc_query_system[36043fee951be75c]::query::caches::DefaultCache<rustc_span[b1c0d326828bdf7]::def_id::DefId, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[7a9350cb63c32305]::plumbing::QueryCtxt, false>
  61:     0x7f62392ce3a2 - rustc_query_impl[7a9350cb63c32305]::query_impl::type_of_opaque::get_query_non_incr::__rust_end_short_backtrace
  62:     0x7f623851fdfb - rustc_middle[cdc9403fb0d2bf23]::query::plumbing::query_get_at::<rustc_query_system[36043fee951be75c]::query::caches::DefaultCache<rustc_span[b1c0d326828bdf7]::def_id::DefId, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>>
  63:     0x7f6238464149 - rustc_hir_analysis[4f5f2fc3d25550fe]::collect::type_of::type_of
  64:     0x7f6238461e69 - rustc_query_impl[7a9350cb63c32305]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[7a9350cb63c32305]::query_impl::type_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>
  65:     0x7f6238461205 - rustc_query_system[36043fee951be75c]::query::plumbing::try_execute_query::<rustc_query_impl[7a9350cb63c32305]::DynamicConfig<rustc_query_system[36043fee951be75c]::query::caches::DefaultCache<rustc_span[b1c0d326828bdf7]::def_id::DefId, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[7a9350cb63c32305]::plumbing::QueryCtxt, false>
  66:     0x7f6238460e2b - rustc_query_impl[7a9350cb63c32305]::query_impl::type_of::get_query_non_incr::__rust_end_short_backtrace
  67:     0x7f623851fdfb - rustc_middle[cdc9403fb0d2bf23]::query::plumbing::query_get_at::<rustc_query_system[36043fee951be75c]::query::caches::DefaultCache<rustc_span[b1c0d326828bdf7]::def_id::DefId, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 8usize]>>>
  68:     0x7f6238fcedeb - rustc_hir_analysis[4f5f2fc3d25550fe]::check::check::check_mod_item_types
  69:     0x7f6238fcd78d - rustc_query_impl[7a9350cb63c32305]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[7a9350cb63c32305]::query_impl::check_mod_item_types::dynamic_query::{closure#2}::{closure#0}, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 0usize]>>
  70:     0x7f6238a6ec08 - rustc_query_system[36043fee951be75c]::query::plumbing::try_execute_query::<rustc_query_impl[7a9350cb63c32305]::DynamicConfig<rustc_query_system[36043fee951be75c]::query::caches::DefaultCache<rustc_span[b1c0d326828bdf7]::def_id::LocalModDefId, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[7a9350cb63c32305]::plumbing::QueryCtxt, false>
  71:     0x7f6238a6e59b - rustc_query_impl[7a9350cb63c32305]::query_impl::check_mod_item_types::get_query_non_incr::__rust_end_short_backtrace
  72:     0x7f62386c1ff5 - rustc_hir_analysis[4f5f2fc3d25550fe]::check_crate
  73:     0x7f6238a7111f - rustc_interface[1301374836cf4118]::passes::analysis
  74:     0x7f6238a70b21 - rustc_query_impl[7a9350cb63c32305]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[7a9350cb63c32305]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 1usize]>>
  75:     0x7f6238ee3826 - rustc_query_system[36043fee951be75c]::query::plumbing::try_execute_query::<rustc_query_impl[7a9350cb63c32305]::DynamicConfig<rustc_query_system[36043fee951be75c]::query::caches::SingleCache<rustc_middle[cdc9403fb0d2bf23]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[7a9350cb63c32305]::plumbing::QueryCtxt, false>
  76:     0x7f6238ee3655 - rustc_query_impl[7a9350cb63c32305]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
  77:     0x7f623912bfcd - std[2f4a0694a58cda61]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[1301374836cf4118]::util::run_in_thread_with_globals<rustc_interface[1301374836cf4118]::interface::run_compiler<core[5c6e87b24e6e70e4]::result::Result<(), rustc_span[b1c0d326828bdf7]::ErrorGuaranteed>, rustc_driver_impl[d38002856561e974]::run_compiler::{closure#1}>::{closure#0}, core[5c6e87b24e6e70e4]::result::Result<(), rustc_span[b1c0d326828bdf7]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[5c6e87b24e6e70e4]::result::Result<(), rustc_span[b1c0d326828bdf7]::ErrorGuaranteed>>
  78:     0x7f623912b2b3 - <<std[2f4a0694a58cda61]::thread::Builder>::spawn_unchecked_<rustc_interface[1301374836cf4118]::util::run_in_thread_with_globals<rustc_interface[1301374836cf4118]::interface::run_compiler<core[5c6e87b24e6e70e4]::result::Result<(), rustc_span[b1c0d326828bdf7]::ErrorGuaranteed>, rustc_driver_impl[d38002856561e974]::run_compiler::{closure#1}>::{closure#0}, core[5c6e87b24e6e70e4]::result::Result<(), rustc_span[b1c0d326828bdf7]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[5c6e87b24e6e70e4]::result::Result<(), rustc_span[b1c0d326828bdf7]::ErrorGuaranteed>>::{closure#1} as core[5c6e87b24e6e70e4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  79:     0x7f6234777105 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h57e353e84f121ba4
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/alloc/src/boxed.rs:2007:9
  80:     0x7f6234777105 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h85e27837fb36d5ba
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/alloc/src/boxed.rs:2007:9
  81:     0x7f6234777105 - std::sys::unix::thread::Thread::new::thread_start::h7366c40575a243da
                               at /rustc/e2068cdb0964ccbae614ab60cddeed7b24473cdd/library/std/src/sys/unix/thread.rs:108:17
  82:     0x7f62345409eb - <unknown>
  83:     0x7f62345c47cc - <unknown>
  84:                0x0 - <unknown>

note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

note: rustc 1.75.0-nightly (e2068cdb0 2023-10-23) running on x86_64-unknown-linux-gnu

note: compiler flags: -Z crate-attr=feature(non_exhaustive_omitted_patterns_lint) -Z dump-mir-dir=dir

query stack during panic:
#0 [check_match] match-checking `enum_upvar::{closure#0}`
#1 [mir_built] building MIR for `enum_upvar::{closure#0}`
#2 [unsafety_check_result] unsafety-checking `enum_upvar::{closure#0}`
#3 [unsafety_check_result] unsafety-checking `enum_upvar`
#4 [mir_const] preparing `enum_upvar` for borrow checking
#5 [mir_promoted] promoting constants in MIR for `enum_upvar`
#6 [mir_borrowck] borrow-checking `enum_upvar`
#7 [type_of_opaque] computing type of opaque `enum_upvar::T::{opaque#0}`
#8 [type_of] computing type of `enum_upvar::T::{opaque#0}`
#9 [check_mod_item_types] checking item types in top-level module
#10 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 3 previous errors; 1 warning emitted

Some errors have detailed explanations: E0601, E0658.
For more information about an error, try `rustc --explain E0601`.

Activity

  1. matthiaskrgr
    added
    I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️
    T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.
    C-bugCategory: This is a bug.
    on Oct 23, 2023
  2. rustbot
    added
    needs-triageThis issue may need triage. Remove when done. See docs forge.rust-lang.org/release/issue-triaging
    on Oct 23, 2023

  3. matthiaskrgr commented on Oct 23, 2023

    @matthiaskrgr
    matthiaskrgr
    on Oct 23, 2023
    MemberAuthor

    cc @Nadrieril probably ^^

  4. Nadrieril commented on Oct 23, 2023

    @Nadrieril
    Nadrieril
    on Oct 23, 2023
    Member

    Hehe hi again! I know about this one, it'll get fixed by #116751, or by #116821 once I clean it up

  5. Nadrieril commented on Oct 23, 2023

    @Nadrieril
    Nadrieril
    on Oct 23, 2023
    Member

    Out of curiosity, how do you get these? Do you regularly run the whole rustc test suite with some lints turned on?

  6. matthiaskrgr commented on Oct 24, 2023

    @matthiaskrgr
    matthiaskrgr
    on Oct 24, 2023
    MemberAuthor

    Do you regularly run the whole rustc test suite with some lints turned on?

    I usually do that about daily 😉 :D
    I also have like gigabytes of fuzzed code around https://github.com/matthiaskrgr/icemaker

  7. Nadrieril commented on Oct 24, 2023

    @Nadrieril
    Nadrieril
    on Oct 24, 2023
    Member

    Wow :D Stunning work

  8. Noratrieb
    added
    A-patternsRelating to patterns and pattern matching
    and removed
    needs-triageThis issue may need triage. Remove when done. See docs forge.rust-lang.org/release/issue-triaging
    on Oct 26, 2023

  9. Nadrieril commented on Oct 28, 2023

    @Nadrieril
    Nadrieril
    on Oct 28, 2023
    Member

    #116751 is merged with a mitigation that should fix this! I forgot to add a regression test so I'm not 100% sure x) #116821 is the one that should fix this whole class of issues for real; I'll add tests there.

  10. Nadrieril
    added
    A-exhaustiveness-checkingRelating to exhaustiveness / usefulness checking of patterns
    on Dec 1, 2023
  11. bors
    added 2 commits that reference this issue on Dec 22, 2023

    Auto merge of rust-lang#116821 - Nadrieril:fix-opaque-ice, r=compiler…

    649f17f

    Auto merge of rust-lang#116821 - Nadrieril:fix-opaque-ice, r=compiler…

    c1fc1d1
  12. bors
    closed this as completedin c1fc1d1on Dec 22, 2023
  13. github-actions
    added a commit that references this issue on Dec 24, 2023

    Auto merge of #116821 - Nadrieril:fix-opaque-ice, r=compiler-errors

    b19ad5d
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