[ICE]: ICE error when using `async_fn_in_trait` and `const_trait_impl` features simultaneously

[iamanonymouscs]

Code

#![feature(async_fn_in_trait)]
#![feature(const_trait_impl)]

#![allow(incomplete_features)]

pub trait Foo {
    async fn foo(&mut self);
}

impl<T: Foo> Foo  for &mut T{
    async fn foo(&mut self) {
        match () {
            const { (|| {()})() } => {}
        }
    }
}

Affected release channels

• Previous Stable
• Current Stable
• Current Beta
• Current Nightly

Rust Version

rustc 1.75.0-nightly (fee5518cd 2023-11-05)
binary: rustc
commit-hash: fee5518cdd4435c60a57fe3bb734fc1a14abeb7a
commit-date: 2023-11-05
host: x86_64-unknown-linux-gnu
release: 1.75.0-nightly
LLVM version: 17.0.4

Current error output

error[E0670]: `async fn` is not permitted in Rust 2015
 --> code.rs:7:5
  |
7 |     async fn foo(&mut self);
  |     ^^^^^ to use `async fn`, switch to Rust 2018 or later
  |
  = help: pass `--edition 2021` to `rustc`
  = note: for more on editions, read https://doc.rust-lang.org/edition-guide

error[E0670]: `async fn` is not permitted in Rust 2015
  --> code.rs:11:5
   |
11 |     async fn foo(&mut self) {
   |     ^^^^^ to use `async fn`, switch to Rust 2018 or later
   |
   = help: pass `--edition 2021` to `rustc`
   = note: for more on editions, read https://doc.rust-lang.org/edition-guide

error[E0658]: inline-const in pattern position is experimental
  --> code.rs:13:13
   |
13 |             const { (|| {()})() } => {}
   |             ^^^^^
   |
   = note: see issue #76001 <https://github.com/rust-lang/rust/issues/76001> for more information
   = help: add `#![feature(inline_const_pat)]` to the crate attributes to enable

error[E0601]: `main` function not found in crate `code`
  --> code.rs:16:2
   |
16 | }
   |  ^ consider adding a `main` function to `code.rs`

warning: the feature `async_fn_in_trait` has been stable since 1.75.0-nightly and no longer requires an attribute to enable
 --> code.rs:1:12
  |
1 | #![feature(async_fn_in_trait)]
  |            ^^^^^^^^^^^^^^^^^
  |
  = note: `#[warn(stable_features)]` on by default

error: internal compiler error: compiler/rustc_middle/src/ty/generic_args.rs:399:45: expected type for param #0 in [ReErased, T/#1, i8, Binder(extern "RustCall" fn(()), []), ()]

Backtrace

thread 'rustc' panicked at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/compiler/rustc_errors/src/lib.rs:1661:9:
Box<dyn Any>
stack backtrace:
   0:     0x7f4dc4be4cfc - std::backtrace_rs::backtrace::libunwind::trace::hbe19b9ec19549d8b
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
   1:     0x7f4dc4be4cfc - std::backtrace_rs::backtrace::trace_unsynchronized::h6d94c36d49721251
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f4dc4be4cfc - std::sys_common::backtrace::_print_fmt::hc303a306f265b5ef
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/std/src/sys_common/backtrace.rs:67:5
   3:     0x7f4dc4be4cfc - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h221b7c7ec7428f0c
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7f4dc4c46f20 - core::fmt::rt::Argument::fmt::h59656340112ee5fd
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/core/src/fmt/rt.rs:142:9
   5:     0x7f4dc4c46f20 - core::fmt::write::h3955ebe73e7c24f4
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/core/src/fmt/mod.rs:1117:17
   6:     0x7f4dc4bd8b8f - std::io::Write::write_fmt::h77b17b2494df0384
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/std/src/io/mod.rs:1763:15
   7:     0x7f4dc4be4ae4 - std::sys_common::backtrace::_print::h6c7d2a1a7e16a934
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x7f4dc4be4ae4 - std::sys_common::backtrace::print::he05db4534040faa6
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x7f4dc4be7777 - std::panicking::default_hook::{{closure}}::h6bbf5ca2e7803768
  10:     0x7f4dc4be74df - std::panicking::default_hook::h9e25fac0ca8c0472
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/std/src/panicking.rs:292:9
  11:     0x7f4dc775e660 - std[f1680e40f2363332]::panicking::update_hook::<alloc[9c8c15f78f14b4ba]::boxed::Box<rustc_driver_impl[9b8a01a6f67b728]::install_ice_hook::{closure#0}>>::{closure#0}
  12:     0x7f4dc4be7eb8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h44955b1f6545581a
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/alloc/src/boxed.rs:2021:9
  13:     0x7f4dc4be7eb8 - std::panicking::rust_panic_with_hook::h1278b38991797f78
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/std/src/panicking.rs:783:13
  14:     0x7f4dc7b22a94 - std[f1680e40f2363332]::panicking::begin_panic::<rustc_errors[89eaf8cd7b2d2c3a]::ExplicitBug>::{closure#0}
  15:     0x7f4dc7b1a296 - std[f1680e40f2363332]::sys_common::backtrace::__rust_end_short_backtrace::<std[f1680e40f2363332]::panicking::begin_panic<rustc_errors[89eaf8cd7b2d2c3a]::ExplicitBug>::{closure#0}, !>
  16:     0x7f4dc7b14d66 - std[f1680e40f2363332]::panicking::begin_panic::<rustc_errors[89eaf8cd7b2d2c3a]::ExplicitBug>
  17:     0x7f4dc7afbf54 - <rustc_errors[89eaf8cd7b2d2c3a]::HandlerInner>::bug::<alloc[9c8c15f78f14b4ba]::string::String>
  18:     0x7f4dc7afbd14 - <rustc_errors[89eaf8cd7b2d2c3a]::Handler>::bug::<alloc[9c8c15f78f14b4ba]::string::String>
  19:     0x7f4dc7b9caad - rustc_middle[6619026fb430307d]::util::bug::opt_span_bug_fmt::<rustc_span[6035f655ab1e5d39]::span_encoding::Span>::{closure#0}
  20:     0x7f4dc7b849da - rustc_middle[6619026fb430307d]::ty::context::tls::with_opt::<rustc_middle[6619026fb430307d]::util::bug::opt_span_bug_fmt<rustc_span[6035f655ab1e5d39]::span_encoding::Span>::{closure#0}, !>::{closure#0}
  21:     0x7f4dc7b84878 - rustc_middle[6619026fb430307d]::ty::context::tls::with_context_opt::<rustc_middle[6619026fb430307d]::ty::context::tls::with_opt<rustc_middle[6619026fb430307d]::util::bug::opt_span_bug_fmt<rustc_span[6035f655ab1e5d39]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  22:     0x7f4dc5c49830 - rustc_middle[6619026fb430307d]::util::bug::bug_fmt
  23:     0x7f4dc7b9d73a - rustc_middle[6619026fb430307d]::util::call_kind::call_kind
  24:     0x7f4dc77242dc - <rustc_const_eval[945a0d533730a8db]::transform::check_consts::ops::FnCallNonConst as rustc_const_eval[945a0d533730a8db]::transform::check_consts::ops::NonConstOp>::build_error
  25:     0x7f4dc7720c02 - <rustc_const_eval[945a0d533730a8db]::transform::check_consts::check::Checker>::check_op_spanned::<rustc_const_eval[945a0d533730a8db]::transform::check_consts::ops::FnCallNonConst>
  26:     0x7f4dc8fffbbf - <rustc_const_eval[945a0d533730a8db]::transform::check_consts::check::Checker as rustc_middle[6619026fb430307d]::mir::visit::Visitor>::visit_terminator
  27:     0x7f4dc6d98c1a - <rustc_const_eval[945a0d533730a8db]::transform::check_consts::check::Checker as rustc_middle[6619026fb430307d]::mir::visit::Visitor>::visit_basic_block_data
  28:     0x7f4dc8ebf413 - <rustc_const_eval[945a0d533730a8db]::transform::check_consts::check::Checker>::check_body
  29:     0x7f4dc923ccfe - rustc_mir_transform[5164bd9bcb8f45cc]::mir_const_qualif
  30:     0x7f4dc923cb75 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::mir_const_qualif::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 5usize]>>
  31:     0x7f4dc923c37e - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::DefaultCache<rustc_span[6035f655ab1e5d39]::def_id::DefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 5usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
  32:     0x7f4dc923c130 - rustc_query_impl[ecee174baa6465c1]::query_impl::mir_const_qualif::get_query_non_incr::__rust_end_short_backtrace
  33:     0x7f4dc6d79e1b - rustc_mir_transform[5164bd9bcb8f45cc]::mir_promoted
  34:     0x7f4dc8e29752 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::mir_promoted::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 16usize]>>
  35:     0x7f4dc8e299c0 - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::VecCache<rustc_span[6035f655ab1e5d39]::def_id::LocalDefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
  36:     0x7f4dc8e29653 - rustc_query_impl[ecee174baa6465c1]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace
  37:     0x7f4dc95f6cc3 - rustc_borrowck[d493e5d200bb2a27]::mir_borrowck
  38:     0x7f4dc95f6c2f - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::mir_borrowck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>
  39:     0x7f4dc898736c - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::VecCache<rustc_span[6035f655ab1e5d39]::def_id::LocalDefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
  40:     0x7f4dc8986f90 - rustc_query_impl[ecee174baa6465c1]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace
  41:     0x7f4dc6610f17 - rustc_mir_transform[5164bd9bcb8f45cc]::mir_drops_elaborated_and_const_checked
  42:     0x7f4dc8987135 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::mir_drops_elaborated_and_const_checked::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>
  43:     0x7f4dc898736c - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::VecCache<rustc_span[6035f655ab1e5d39]::def_id::LocalDefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
  44:     0x7f4dc8986c90 - rustc_query_impl[ecee174baa6465c1]::query_impl::mir_drops_elaborated_and_const_checked::get_query_non_incr::__rust_end_short_backtrace
  45:     0x7f4dc9133191 - rustc_mir_transform[5164bd9bcb8f45cc]::mir_for_ctfe
  46:     0x7f4dc88d2569 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::mir_for_ctfe::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>
  47:     0x7f4dc88d2085 - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::DefaultCache<rustc_span[6035f655ab1e5d39]::def_id::DefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
  48:     0x7f4dc88d169e - rustc_query_impl[ecee174baa6465c1]::query_impl::mir_for_ctfe::get_query_non_incr::__rust_end_short_backtrace
  49:     0x7f4dc9655a59 - rustc_const_eval[945a0d533730a8db]::const_eval::eval_queries::eval_in_interpreter
  50:     0x7f4dc96548b5 - rustc_const_eval[945a0d533730a8db]::const_eval::eval_queries::eval_to_allocation_raw_provider
  51:     0x7f4dc9654435 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::eval_to_allocation_raw::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 24usize]>>
  52:     0x7f4dc8db5e10 - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::DefaultCache<rustc_middle[6619026fb430307d]::ty::ParamEnvAnd<rustc_middle[6619026fb430307d]::mir::interpret::GlobalId>, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 24usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
  53:     0x7f4dc8db5a70 - rustc_query_impl[ecee174baa6465c1]::query_impl::eval_to_allocation_raw::get_query_non_incr::__rust_end_short_backtrace
  54:     0x7f4dc8c8803e - rustc_const_eval[945a0d533730a8db]::const_eval::eval_to_valtree
  55:     0x7f4dc8c87ea2 - <rustc_const_eval[945a0d533730a8db]::provide::{closure#0} as core[e7d9b10fc4b648d1]::ops::function::FnOnce<(rustc_middle[6619026fb430307d]::ty::context::TyCtxt, rustc_middle[6619026fb430307d]::ty::ParamEnvAnd<rustc_middle[6619026fb430307d]::mir::interpret::GlobalId>)>>::call_once
  56:     0x7f4dc8c87e76 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::eval_to_valtree::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 24usize]>>
  57:     0x7f4dc8db6427 - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::DefaultCache<rustc_middle[6619026fb430307d]::ty::ParamEnvAnd<rustc_middle[6619026fb430307d]::mir::interpret::GlobalId>, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 24usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
  58:     0x7f4dc8db5870 - rustc_query_impl[ecee174baa6465c1]::query_impl::eval_to_valtree::get_query_non_incr::__rust_end_short_backtrace
  59:     0x7f4dc8db506a - rustc_middle[6619026fb430307d]::query::plumbing::query_get_at::<rustc_query_system[b725a46ba76d9304]::query::caches::DefaultCache<rustc_middle[6619026fb430307d]::ty::ParamEnvAnd<rustc_middle[6619026fb430307d]::mir::interpret::GlobalId>, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 24usize]>>>
  60:     0x7f4dc8db444a - <rustc_middle[6619026fb430307d]::ty::context::TyCtxt>::const_eval_resolve_for_typeck
  61:     0x7f4dc9d18937 - <rustc_mir_build[f6e508f92c0f686d]::thir::pattern::PatCtxt>::lower_lit.cold.0
  62:     0x7f4dc8db0e94 - <rustc_mir_build[f6e508f92c0f686d]::thir::pattern::PatCtxt>::lower_pattern
  63:     0x7f4dc8dba11b - <rustc_mir_build[f6e508f92c0f686d]::thir::cx::Cx>::mirror_expr
  64:     0x7f4dc8db6e8d - <rustc_mir_build[f6e508f92c0f686d]::thir::cx::Cx>::mirror_block
  65:     0x7f4dc8db8080 - <rustc_mir_build[f6e508f92c0f686d]::thir::cx::Cx>::mirror_expr
  66:     0x7f4dc8dba76c - <rustc_mir_build[f6e508f92c0f686d]::thir::cx::Cx>::mirror_expr
  67:     0x7f4dc8db6e8d - <rustc_mir_build[f6e508f92c0f686d]::thir::cx::Cx>::mirror_block
  68:     0x7f4dc8db8080 - <rustc_mir_build[f6e508f92c0f686d]::thir::cx::Cx>::mirror_expr
  69:     0x7f4dc8dadf06 - rustc_mir_build[f6e508f92c0f686d]::thir::cx::thir_body
  70:     0x7f4dc8dad8f4 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::thir_body::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 16usize]>>
  71:     0x7f4dc8e299aa - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::VecCache<rustc_span[6035f655ab1e5d39]::def_id::LocalDefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
  72:     0x7f4dc8accc57 - rustc_query_impl[ecee174baa6465c1]::query_impl::thir_body::get_query_non_incr::__rust_end_short_backtrace
  73:     0x7f4dc8accd10 - rustc_mir_build[f6e508f92c0f686d]::thir::pattern::check_match::check_match
  74:     0x7f4dc8accc89 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::check_match::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 1usize]>>
  75:     0x7f4dc8bc4d78 - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::VecCache<rustc_span[6035f655ab1e5d39]::def_id::LocalDefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
  76:     0x7f4dc8bc4a5d - rustc_query_impl[ecee174baa6465c1]::query_impl::check_match::get_query_non_incr::__rust_end_short_backtrace
  77:     0x7f4dc8d72c3a - rustc_mir_build[f6e508f92c0f686d]::build::mir_built
  78:     0x7f4dc8d72af1 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::mir_built::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>
  79:     0x7f4dc898736c - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::VecCache<rustc_span[6035f655ab1e5d39]::def_id::LocalDefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
  80:     0x7f4dc8986d50 - rustc_query_impl[ecee174baa6465c1]::query_impl::mir_built::get_query_non_incr::__rust_end_short_backtrace
  81:     0x7f4dc6159ede - rustc_mir_transform[5164bd9bcb8f45cc]::check_unsafety::unsafety_check_result
  82:     0x7f4dc8987147 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::unsafety_check_result::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>
  83:     0x7f4dc898736c - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::VecCache<rustc_span[6035f655ab1e5d39]::def_id::LocalDefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
  84:     0x7f4dc8986e10 - rustc_query_impl[ecee174baa6465c1]::query_impl::unsafety_check_result::get_query_non_incr::__rust_end_short_backtrace
  85:     0x7f4dc615d62b - rustc_mir_transform[5164bd9bcb8f45cc]::check_unsafety::unsafety_check_result
  86:     0x7f4dc8987147 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::unsafety_check_result::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>
  87:     0x7f4dc898736c - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::VecCache<rustc_span[6035f655ab1e5d39]::def_id::LocalDefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
  88:     0x7f4dc8986e10 - rustc_query_impl[ecee174baa6465c1]::query_impl::unsafety_check_result::get_query_non_incr::__rust_end_short_backtrace
  89:     0x7f4dc8bc525a - rustc_mir_transform[5164bd9bcb8f45cc]::mir_const
  90:     0x7f4dc8bc51ad - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::mir_const::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>
  91:     0x7f4dc898736c - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::VecCache<rustc_span[6035f655ab1e5d39]::def_id::LocalDefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
  92:     0x7f4dc8986ed0 - rustc_query_impl[ecee174baa6465c1]::query_impl::mir_const::get_query_non_incr::__rust_end_short_backtrace
  93:     0x7f4dc6d79caa - rustc_mir_transform[5164bd9bcb8f45cc]::mir_promoted
  94:     0x7f4dc8e29752 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::mir_promoted::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 16usize]>>
  95:     0x7f4dc8e299c0 - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::VecCache<rustc_span[6035f655ab1e5d39]::def_id::LocalDefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
  96:     0x7f4dc8e29653 - rustc_query_impl[ecee174baa6465c1]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace
  97:     0x7f4dc95f6cc3 - rustc_borrowck[d493e5d200bb2a27]::mir_borrowck
  98:     0x7f4dc95f6c2f - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::mir_borrowck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>
  99:     0x7f4dc898736c - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::VecCache<rustc_span[6035f655ab1e5d39]::def_id::LocalDefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
 100:     0x7f4dc8986f90 - rustc_query_impl[ecee174baa6465c1]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace
 101:     0x7f4dc953367f - rustc_hir_analysis[a4a439b5b0d3c431]::collect::type_of::type_of_opaque
 102:     0x7f4dc9533449 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::type_of_opaque::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>
 103:     0x7f4dc88d2085 - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::DefaultCache<rustc_span[6035f655ab1e5d39]::def_id::DefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
 104:     0x7f4dc984795e - rustc_query_impl[ecee174baa6465c1]::query_impl::type_of_opaque::get_query_non_incr::__rust_end_short_backtrace
 105:     0x7f4dc898bfb7 - rustc_middle[6619026fb430307d]::query::plumbing::query_get_at::<rustc_query_system[b725a46ba76d9304]::query::caches::DefaultCache<rustc_span[6035f655ab1e5d39]::def_id::DefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>>
 106:     0x7f4dc5f9f218 - rustc_hir_analysis[a4a439b5b0d3c431]::collect::type_of::type_of
 107:     0x7f4dc88d2ca9 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::type_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>
 108:     0x7f4dc88d2085 - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::DefaultCache<rustc_span[6035f655ab1e5d39]::def_id::DefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
 109:     0x7f4dc88d1cab - rustc_query_impl[ecee174baa6465c1]::query_impl::type_of::get_query_non_incr::__rust_end_short_backtrace
 110:     0x7f4dc8ef8a96 - rustc_middle[6619026fb430307d]::query::plumbing::query_get_at::<rustc_query_system[b725a46ba76d9304]::query::caches::DefaultCache<rustc_span[6035f655ab1e5d39]::def_id::DefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>>
 111:     0x7f4dc8ae7ae3 - <rustc_privacy[6dc1b70a4e16ef91]::EmbargoVisitor as rustc_hir[17c6bb8c8c1c8532]::intravisit::Visitor>::visit_item
 112:     0x7f4dc89b4a0e - <rustc_middle[6619026fb430307d]::hir::map::Map>::visit_all_item_likes_in_crate::<rustc_privacy[6dc1b70a4e16ef91]::EmbargoVisitor>
 113:     0x7f4dc89b60f8 - rustc_privacy[6dc1b70a4e16ef91]::effective_visibilities
 114:     0x7f4dc89b5f7d - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::effective_visibilities::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>
 115:     0x7f4dc93fa5a5 - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::SingleCache<rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
 116:     0x7f4dc93f9d06 - rustc_query_impl[ecee174baa6465c1]::query_impl::effective_visibilities::get_query_non_incr::__rust_end_short_backtrace
 117:     0x7f4dc8d3a599 - rustc_hir_analysis[a4a439b5b0d3c431]::check::check::check_impl_items_against_trait
 118:     0x7f4dc9456185 - rustc_hir_analysis[a4a439b5b0d3c431]::check::check::check_mod_item_types
 119:     0x7f4dc9455df9 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::check_mod_item_types::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 0usize]>>
 120:     0x7f4dc92379c8 - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::DefaultCache<rustc_span[6035f655ab1e5d39]::def_id::LocalModDefId, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
 121:     0x7f4dc9237357 - rustc_query_impl[ecee174baa6465c1]::query_impl::check_mod_item_types::get_query_non_incr::__rust_end_short_backtrace
 122:     0x7f4dc8b78ff2 - rustc_hir_analysis[a4a439b5b0d3c431]::check_crate
 123:     0x7f4dc922f096 - rustc_interface[572be4898179a35d]::passes::analysis
 124:     0x7f4dc922eab5 - rustc_query_impl[ecee174baa6465c1]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecee174baa6465c1]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 1usize]>>
 125:     0x7f4dc9392726 - rustc_query_system[b725a46ba76d9304]::query::plumbing::try_execute_query::<rustc_query_impl[ecee174baa6465c1]::DynamicConfig<rustc_query_system[b725a46ba76d9304]::query::caches::SingleCache<rustc_middle[6619026fb430307d]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[ecee174baa6465c1]::plumbing::QueryCtxt, false>
 126:     0x7f4dc9392555 - rustc_query_impl[ecee174baa6465c1]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
 127:     0x7f4dc947fcc6 - rustc_interface[572be4898179a35d]::interface::run_compiler::<core[e7d9b10fc4b648d1]::result::Result<(), rustc_span[6035f655ab1e5d39]::ErrorGuaranteed>, rustc_driver_impl[9b8a01a6f67b728]::run_compiler::{closure#1}>::{closure#0}
 128:     0x7f4dc97daf6d - std[f1680e40f2363332]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[572be4898179a35d]::util::run_in_thread_with_globals<rustc_interface[572be4898179a35d]::interface::run_compiler<core[e7d9b10fc4b648d1]::result::Result<(), rustc_span[6035f655ab1e5d39]::ErrorGuaranteed>, rustc_driver_impl[9b8a01a6f67b728]::run_compiler::{closure#1}>::{closure#0}, core[e7d9b10fc4b648d1]::result::Result<(), rustc_span[6035f655ab1e5d39]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[e7d9b10fc4b648d1]::result::Result<(), rustc_span[6035f655ab1e5d39]::ErrorGuaranteed>>
 129:     0x7f4dc97dadc5 - <<std[f1680e40f2363332]::thread::Builder>::spawn_unchecked_<rustc_interface[572be4898179a35d]::util::run_in_thread_with_globals<rustc_interface[572be4898179a35d]::interface::run_compiler<core[e7d9b10fc4b648d1]::result::Result<(), rustc_span[6035f655ab1e5d39]::ErrorGuaranteed>, rustc_driver_impl[9b8a01a6f67b728]::run_compiler::{closure#1}>::{closure#0}, core[e7d9b10fc4b648d1]::result::Result<(), rustc_span[6035f655ab1e5d39]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[e7d9b10fc4b648d1]::result::Result<(), rustc_span[6035f655ab1e5d39]::ErrorGuaranteed>>::{closure#1} as core[e7d9b10fc4b648d1]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
 130:     0x7f4dc4bf2c25 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::he0933d4d918a24ed
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/alloc/src/boxed.rs:2007:9
 131:     0x7f4dc4bf2c25 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd4192338c0cd95d1
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/alloc/src/boxed.rs:2007:9
 132:     0x7f4dc4bf2c25 - std::sys::unix::thread::Thread::new::thread_start::haa2877bab3139f3e
                               at /rustc/fee5518cdd4435c60a57fe3bb734fc1a14abeb7a/library/std/src/sys/unix/thread.rs:108:17
 133:     0x7f4dc4ae2609 - start_thread
 134:     0x7f4dc4a05133 - clone
 135:                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: please attach the file at `/home/rustc-ice-2023-11-06T14_58_34-6825.txt` to your bug report

query stack during panic:
#0 [mir_const_qualif] const checking `<impl at code.rs:10:1: 10:29>::foo::{closure#0}::{constant#0}`
#1 [mir_promoted] promoting constants in MIR for `<impl at code.rs:10:1: 10:29>::foo::{closure#0}::{constant#0}`
#2 [mir_borrowck] borrow-checking `<impl at code.rs:10:1: 10:29>::foo::{closure#0}::{constant#0}`
#3 [mir_drops_elaborated_and_const_checked] elaborating drops for `<impl at code.rs:10:1: 10:29>::foo::{closure#0}::{constant#0}`
#4 [mir_for_ctfe] caching mir of `<impl at code.rs:10:1: 10:29>::foo::{closure#0}::{constant#0}` for CTFE
#5 [eval_to_allocation_raw] const-evaluating + checking `<impl at code.rs:10:1: 10:29>::foo::{closure#0}::{constant#0}`
#6 [eval_to_valtree] evaluating type-level constant
#7 [thir_body] building THIR for `<impl at code.rs:10:1: 10:29>::foo::{closure#0}`
#8 [check_match] match-checking `<impl at code.rs:10:1: 10:29>::foo::{closure#0}`
#9 [mir_built] building MIR for `<impl at code.rs:10:1: 10:29>::foo::{closure#0}`
#10 [unsafety_check_result] unsafety-checking `<impl at code.rs:10:1: 10:29>::foo::{closure#0}`
#11 [unsafety_check_result] unsafety-checking `<impl at code.rs:10:1: 10:29>::foo`
#12 [mir_const] preparing `<impl at code.rs:10:1: 10:29>::foo` for borrow checking
#13 [mir_promoted] promoting constants in MIR for `<impl at code.rs:10:1: 10:29>::foo`
#14 [mir_borrowck] borrow-checking `<impl at code.rs:10:1: 10:29>::foo`
#15 [type_of_opaque] computing type of opaque `<impl at code.rs:10:1: 10:29>::foo::{opaque#0}`
#16 [type_of] computing type of `<impl at code.rs:10:1: 10:29>::foo::{opaque#0}`
#17 [effective_visibilities] checking effective visibilities
#18 [check_mod_item_types] checking item types in top-level module
#19 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 5 previous errors; 1 warning emitted

Anything else?

No response

[matthiaskrgr]

Regression in nightly-2023-07-29

Regression in aafd75a
#114134

[compiler-errors]

No longer ICEs since I reworked const traits.