ICE: ast lowering: `no entry for node id: NodeId(53)`

[matthiaskrgr]

Code

impl Struct {
    fn wrap_ref_Self_Self(
        self: Wrap<
    {
        fn ref_self(&self, f: &u32) -> &u32 {
            f
        }
    },
    Self,
>,
        f: &u8,
    ) -> &u8 {
        f
    }
}

Meta

rustc --version --verbose:

rustc 1.71.0-nightly (1c42cb4ef 2023-04-26)
binary: rustc
commit-hash: 1c42cb4ef0544fbfaa500216e53382d6b079c001
commit-date: 2023-04-26
host: x86_64-unknown-linux-gnu
release: 1.71.0-nightly
LLVM version: 16.0.2

Error output

error: `self` parameter is only allowed in associated functions
 --> treereduce.out:5:21
  |
5 |         fn ref_self(&self, f: &u32) -> &u32 {
  |                     ^^^^^ not semantically valid as function parameter
  |
  = note: associated functions are those in `impl` or `trait` definitions

error[E0401]: can't use generic parameters from outer function
 --> treereduce.out:5:21
  |
1 | impl Struct {
  | ---- `Self` type implicitly declared here, by this `impl`
...
5 |         fn ref_self(&self, f: &u32) -> &u32 {
  |                     ^^^^^
  |                     |
  |                     use of generic parameter from outer function
  |                     use a type here instead

error[E0412]: cannot find type `Struct` in this scope
 --> treereduce.out:1:6
  |
1 | impl Struct {
  |      ^^^^^^ not found in this scope

error[E0412]: cannot find type `Wrap` in this scope
 --> treereduce.out:3:15
  |
3 |         self: Wrap<
  |               ^^^^ not found in this scope

Backtrace

thread 'rustc' panicked at 'no entry for node id: `NodeId(53)`', compiler/rustc_ast_lowering/src/lib.rs:548:55
stack backtrace:
   0:     0x7fb8a7368e73 - std::backtrace_rs::backtrace::libunwind::trace::h0c8179e89cc9893e
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7fb8a7368e73 - std::backtrace_rs::backtrace::trace_unsynchronized::hfadffaff9fceb6ba
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fb8a7368e73 - std::sys_common::backtrace::_print_fmt::ha49f609af156c4cb
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7fb8a7368e73 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h0ad104dc9ebb0bab
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7fb8a73c9c8f - core::fmt::write::h076b507083203424
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/core/src/fmt/mod.rs:1247:17
   5:     0x7fb8a735bea1 - std::io::Write::write_fmt::ha4c326e8c8c981e1
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/io/mod.rs:1712:15
   6:     0x7fb8a7368c85 - std::sys_common::backtrace::_print::hbc9e8503f2c8583b
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7fb8a7368c85 - std::sys_common::backtrace::print::he24fec1d9c5516a7
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7fb8a736b847 - std::panicking::default_hook::{{closure}}::hf29caaf6379226a6
   9:     0x7fb8a736b635 - std::panicking::default_hook::h0765c9476c979227
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/panicking.rs:288:9
  10:     0x7fb8aa5bf8c5 - <rustc_driver_impl[b4ece89b41fa04d8]::DEFAULT_HOOK::{closure#0}::{closure#0} as core[a53159a38bb5d97c]::ops::function::FnOnce<(&core[a53159a38bb5d97c]::panic::panic_info::PanicInfo,)>>::call_once::{shim:vtable#0}
  11:     0x7fb8a736bf85 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7a83df3f1b1b39ec
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/alloc/src/boxed.rs:1976:9
  12:     0x7fb8a736bf85 - std::panicking::rust_panic_with_hook::h060701a46b500fdf
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/panicking.rs:695:13
  13:     0x7fb8a736bcf9 - std::panicking::begin_panic_handler::{{closure}}::hcfb53c4ced379f9a
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/panicking.rs:582:13
  14:     0x7fb8a73692b6 - std::sys_common::backtrace::__rust_end_short_backtrace::h2100286b873f9af0
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/sys_common/backtrace.rs:150:18
  15:     0x7fb8a736ba52 - rust_begin_unwind
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/panicking.rs:578:5
  16:     0x7fb8a73c5f23 - core::panicking::panic_fmt::hcbb1fb2c2e65f651
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/core/src/panicking.rs:67:14
  17:     0x7fb8a928b109 - <rustc_ast_lowering[eda967f0a47da82c]::LoweringContext>::new_named_lifetime_with_res
  18:     0x7fb8a92852dc - <rustc_ast_lowering[eda967f0a47da82c]::LoweringContext>::lower_ty_direct
  19:     0x7fb8a9283548 - <rustc_ast_lowering[eda967f0a47da82c]::LoweringContext>::lower_fn_decl
  20:     0x7fb8a927fe8d - <rustc_ast_lowering[eda967f0a47da82c]::LoweringContext>::lower_method_sig
  21:     0x7fb8a9248fcd - <rustc_ast_lowering[eda967f0a47da82c]::LoweringContext>::with_hir_id_owner::<<rustc_ast_lowering[eda967f0a47da82c]::item::ItemLowerer>::with_lctx<<rustc_ast_lowering[eda967f0a47da82c]::item::ItemLowerer>::lower_assoc_item::{closure#0}>::{closure#0}>
  22:     0x7fb8a92457b2 - <rustc_ast_lowering[eda967f0a47da82c]::item::ItemLowerer>::lower_node
  23:     0x7fb8a9244791 - rustc_ast_lowering[eda967f0a47da82c]::lower_to_hir
  24:     0x7fb8a9d8adb1 - rustc_query_system[38efe1ae13b76606]::query::plumbing::try_execute_query::<rustc_query_impl[d894186be28c7657]::queries::hir_crate, rustc_query_impl[d894186be28c7657]::plumbing::QueryCtxt>
  25:     0x7fb8a9d8aa9d - <rustc_query_impl[d894186be28c7657]::Queries as rustc_middle[74d31bc1c7288efd]::ty::query::QueryEngine>::hir_crate
  26:     0x7fb8a8659491 - rustc_query_system[38efe1ae13b76606]::query::plumbing::try_execute_query::<rustc_query_impl[d894186be28c7657]::queries::hir_attrs, rustc_query_impl[d894186be28c7657]::plumbing::QueryCtxt>
  27:     0x7fb8a8657f26 - <rustc_middle[74d31bc1c7288efd]::hir::map::Map>::attrs
  28:     0x7fb8a9dfdf33 - rustc_passes[58fb231d5542acc4]::entry::entry_fn
  29:     0x7fb8a9de9709 - rustc_query_system[38efe1ae13b76606]::query::plumbing::try_execute_query::<rustc_query_impl[d894186be28c7657]::queries::entry_fn, rustc_query_impl[d894186be28c7657]::plumbing::QueryCtxt>
  30:     0x7fb8a9de93dd - <rustc_query_impl[d894186be28c7657]::Queries as rustc_middle[74d31bc1c7288efd]::ty::query::QueryEngine>::entry_fn
  31:     0x7fb8a9cb6548 - <rustc_session[86cf650fda0448f5]::session::Session>::time::<core[a53159a38bb5d97c]::option::Option<(rustc_span[5acbb0d3e38bbf81]::def_id::DefId, rustc_session[86cf650fda0448f5]::config::EntryFnType)>, rustc_interface[69aa8c17999313ff]::passes::analysis::{closure#0}::{closure#0}::{closure#0}>
  32:     0x7fb8a9a93794 - <rustc_session[86cf650fda0448f5]::session::Session>::time::<(), rustc_interface[69aa8c17999313ff]::passes::analysis::{closure#0}>
  33:     0x7fb8a9a92014 - rustc_interface[69aa8c17999313ff]::passes::analysis
  34:     0x7fb8a9d3e3a2 - rustc_query_system[38efe1ae13b76606]::query::plumbing::try_execute_query::<rustc_query_impl[d894186be28c7657]::queries::analysis, rustc_query_impl[d894186be28c7657]::plumbing::QueryCtxt>
  35:     0x7fb8a9d3e0b0 - <rustc_query_impl[d894186be28c7657]::Queries as rustc_middle[74d31bc1c7288efd]::ty::query::QueryEngine>::analysis
  36:     0x7fb8a97ba90a - <rustc_middle[74d31bc1c7288efd]::ty::context::GlobalCtxt>::enter::<rustc_driver_impl[b4ece89b41fa04d8]::run_compiler::{closure#1}::{closure#2}::{closure#4}, core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>>
  37:     0x7fb8a97b9b48 - <rustc_interface[69aa8c17999313ff]::interface::Compiler>::enter::<rustc_driver_impl[b4ece89b41fa04d8]::run_compiler::{closure#1}::{closure#2}, core[a53159a38bb5d97c]::result::Result<core[a53159a38bb5d97c]::option::Option<rustc_interface[69aa8c17999313ff]::queries::Linker>, rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>>
  38:     0x7fb8a97b7b6f - rustc_span[5acbb0d3e38bbf81]::set_source_map::<core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>, rustc_interface[69aa8c17999313ff]::interface::run_compiler<core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>, rustc_driver_impl[b4ece89b41fa04d8]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
  39:     0x7fb8a97b7200 - std[b0e36382822581c2]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[69aa8c17999313ff]::util::run_in_thread_pool_with_globals<rustc_interface[69aa8c17999313ff]::interface::run_compiler<core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>, rustc_driver_impl[b4ece89b41fa04d8]::run_compiler::{closure#1}>::{closure#0}, core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>>
  40:     0x7fb8a97b6b21 - <<std[b0e36382822581c2]::thread::Builder>::spawn_unchecked_<rustc_interface[69aa8c17999313ff]::util::run_in_thread_pool_with_globals<rustc_interface[69aa8c17999313ff]::interface::run_compiler<core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>, rustc_driver_impl[b4ece89b41fa04d8]::run_compiler::{closure#1}>::{closure#0}, core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>>::{closure#1} as core[a53159a38bb5d97c]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  41:     0x7fb8a7376365 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h2b4cb02d9a218e1d
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/alloc/src/boxed.rs:1962:9
  42:     0x7fb8a7376365 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbd8144eacfab6e10
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/alloc/src/boxed.rs:1962:9
  43:     0x7fb8a7376365 - std::sys::unix::thread::Thread::new::thread_start::h95499a4b2fca6f4a
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/sys/unix/thread.rs:108:17
  44:     0x7fb8a7110bb5 - <unknown>
  45:     0x7fb8a7192d90 - <unknown>
  46:                0x0 - <unknown>

error: the compiler unexpectedly panicked. this is a bug.

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 1.71.0-nightly (1c42cb4ef 2023-04-26) running on x86_64-unknown-linux-gnu

query stack during panic:
thread 'rustc' panicked at 'already borrowed: BorrowMutError', /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/compiler/rustc_query_system/src/query/plumbing.rs:330:39
stack backtrace:
   0:     0x7fb8a7368e73 - std::backtrace_rs::backtrace::libunwind::trace::h0c8179e89cc9893e
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7fb8a7368e73 - std::backtrace_rs::backtrace::trace_unsynchronized::hfadffaff9fceb6ba
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fb8a7368e73 - std::sys_common::backtrace::_print_fmt::ha49f609af156c4cb
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7fb8a7368e73 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h0ad104dc9ebb0bab
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7fb8a73c9c8f - core::fmt::write::h076b507083203424
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/core/src/fmt/mod.rs:1247:17
   5:     0x7fb8a735bea1 - std::io::Write::write_fmt::ha4c326e8c8c981e1
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/io/mod.rs:1712:15
   6:     0x7fb8a7368c85 - std::sys_common::backtrace::_print::hbc9e8503f2c8583b
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7fb8a7368c85 - std::sys_common::backtrace::print::he24fec1d9c5516a7
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7fb8a736b847 - std::panicking::default_hook::{{closure}}::hf29caaf6379226a6
   9:     0x7fb8a736b635 - std::panicking::default_hook::h0765c9476c979227
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/panicking.rs:288:9
  10:     0x7fb8aa5bf8c5 - <rustc_driver_impl[b4ece89b41fa04d8]::DEFAULT_HOOK::{closure#0}::{closure#0} as core[a53159a38bb5d97c]::ops::function::FnOnce<(&core[a53159a38bb5d97c]::panic::panic_info::PanicInfo,)>>::call_once::{shim:vtable#0}
  11:     0x7fb8a736bf85 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7a83df3f1b1b39ec
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/alloc/src/boxed.rs:1976:9
  12:     0x7fb8a736bf85 - std::panicking::rust_panic_with_hook::h060701a46b500fdf
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/panicking.rs:695:13
  13:     0x7fb8a736bcf9 - std::panicking::begin_panic_handler::{{closure}}::hcfb53c4ced379f9a
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/panicking.rs:582:13
  14:     0x7fb8a73692b6 - std::sys_common::backtrace::__rust_end_short_backtrace::h2100286b873f9af0
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/sys_common/backtrace.rs:150:18
  15:     0x7fb8a736ba52 - rust_begin_unwind
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/panicking.rs:578:5
  16:     0x7fb8a73c5f23 - core::panicking::panic_fmt::hcbb1fb2c2e65f651
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/core/src/panicking.rs:67:14
  17:     0x7fb8a73c6553 - core::result::unwrap_failed::ha7348709f208b33c
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/core/src/result.rs:1651:5
  18:     0x7fb8a8659666 - rustc_query_system[38efe1ae13b76606]::query::plumbing::try_execute_query::<rustc_query_impl[d894186be28c7657]::queries::hir_attrs, rustc_query_impl[d894186be28c7657]::plumbing::QueryCtxt>
  19:     0x7fb8a8657f26 - <rustc_middle[74d31bc1c7288efd]::hir::map::Map>::attrs
  20:     0x7fb8a9bfb5e4 - <rustc_middle[74d31bc1c7288efd]::middle::limits::provide::{closure#0} as core[a53159a38bb5d97c]::ops::function::FnOnce<(rustc_middle[74d31bc1c7288efd]::ty::context::TyCtxt, ())>>::call_once
  21:     0x7fb8a9da6063 - rustc_query_system[38efe1ae13b76606]::query::plumbing::try_execute_query::<rustc_query_impl[d894186be28c7657]::queries::limits, rustc_query_impl[d894186be28c7657]::plumbing::QueryCtxt>
  22:     0x7fb8a9da5cc9 - <rustc_query_impl[d894186be28c7657]::Queries as rustc_middle[74d31bc1c7288efd]::ty::query::QueryEngine>::limits
  23:     0x7fb8a86f2909 - <rustc_middle[74d31bc1c7288efd]::ty::print::pretty::FmtPrinter>::new
  24:     0x7fb8aab4c143 - <rustc_middle[74d31bc1c7288efd]::ty::context::TyCtxt>::def_path_str_with_substs::<rustc_hir[91d5175e7694dd08]::hir_id::OwnerId>
  25:     0x7fb8aaaec3c2 - rustc_middle[74d31bc1c7288efd]::query::descs::hir_attrs
  26:     0x7fb8aaefb555 - rustc_query_impl[d894186be28c7657]::plumbing::create_query_frame::<rustc_span[5acbb0d3e38bbf81]::def_id::LocalDefId>
  27:     0x7fb8aaec1753 - <rustc_query_impl[d894186be28c7657]::query_structs::hir_attrs::{closure#0}::{closure#0} as core[a53159a38bb5d97c]::ops::function::FnOnce<(rustc_query_impl[d894186be28c7657]::plumbing::QueryCtxt, rustc_hir[91d5175e7694dd08]::hir_id::OwnerId)>>::call_once
  28:     0x7fb8aae1595d - <rustc_query_system[38efe1ae13b76606]::query::plumbing::QueryState<rustc_hir[91d5175e7694dd08]::hir_id::OwnerId, rustc_middle[74d31bc1c7288efd]::dep_graph::dep_node::DepKind>>::try_collect_active_jobs::<rustc_query_impl[d894186be28c7657]::plumbing::QueryCtxt>
  29:     0x7fb8aaf4dd02 - <rustc_query_impl[d894186be28c7657]::Queries>::try_collect_active_jobs
  30:     0x7fb8aae8ab96 - rustc_query_system[38efe1ae13b76606]::query::job::print_query_stack::<rustc_query_impl[d894186be28c7657]::plumbing::QueryCtxt>
  31:     0x7fb8aa9447d5 - rustc_interface[69aa8c17999313ff]::interface::try_print_query_stack
  32:     0x7fb8aa5c1cd8 - rustc_driver_impl[b4ece89b41fa04d8]::report_ice
  33:     0x7fb8aa5bf90c - <rustc_driver_impl[b4ece89b41fa04d8]::DEFAULT_HOOK::{closure#0}::{closure#0} as core[a53159a38bb5d97c]::ops::function::FnOnce<(&core[a53159a38bb5d97c]::panic::panic_info::PanicInfo,)>>::call_once::{shim:vtable#0}
  34:     0x7fb8a736bf85 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7a83df3f1b1b39ec
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/alloc/src/boxed.rs:1976:9
  35:     0x7fb8a736bf85 - std::panicking::rust_panic_with_hook::h060701a46b500fdf
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/panicking.rs:695:13
  36:     0x7fb8a736bcf9 - std::panicking::begin_panic_handler::{{closure}}::hcfb53c4ced379f9a
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/panicking.rs:582:13
  37:     0x7fb8a73692b6 - std::sys_common::backtrace::__rust_end_short_backtrace::h2100286b873f9af0
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/sys_common/backtrace.rs:150:18
  38:     0x7fb8a736ba52 - rust_begin_unwind
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/panicking.rs:578:5
  39:     0x7fb8a73c5f23 - core::panicking::panic_fmt::hcbb1fb2c2e65f651
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/core/src/panicking.rs:67:14
  40:     0x7fb8a928b109 - <rustc_ast_lowering[eda967f0a47da82c]::LoweringContext>::new_named_lifetime_with_res
  41:     0x7fb8a92852dc - <rustc_ast_lowering[eda967f0a47da82c]::LoweringContext>::lower_ty_direct
  42:     0x7fb8a9283548 - <rustc_ast_lowering[eda967f0a47da82c]::LoweringContext>::lower_fn_decl
  43:     0x7fb8a927fe8d - <rustc_ast_lowering[eda967f0a47da82c]::LoweringContext>::lower_method_sig
  44:     0x7fb8a9248fcd - <rustc_ast_lowering[eda967f0a47da82c]::LoweringContext>::with_hir_id_owner::<<rustc_ast_lowering[eda967f0a47da82c]::item::ItemLowerer>::with_lctx<<rustc_ast_lowering[eda967f0a47da82c]::item::ItemLowerer>::lower_assoc_item::{closure#0}>::{closure#0}>
  45:     0x7fb8a92457b2 - <rustc_ast_lowering[eda967f0a47da82c]::item::ItemLowerer>::lower_node
  46:     0x7fb8a9244791 - rustc_ast_lowering[eda967f0a47da82c]::lower_to_hir
  47:     0x7fb8a9d8adb1 - rustc_query_system[38efe1ae13b76606]::query::plumbing::try_execute_query::<rustc_query_impl[d894186be28c7657]::queries::hir_crate, rustc_query_impl[d894186be28c7657]::plumbing::QueryCtxt>
  48:     0x7fb8a9d8aa9d - <rustc_query_impl[d894186be28c7657]::Queries as rustc_middle[74d31bc1c7288efd]::ty::query::QueryEngine>::hir_crate
  49:     0x7fb8a8659491 - rustc_query_system[38efe1ae13b76606]::query::plumbing::try_execute_query::<rustc_query_impl[d894186be28c7657]::queries::hir_attrs, rustc_query_impl[d894186be28c7657]::plumbing::QueryCtxt>
  50:     0x7fb8a8657f26 - <rustc_middle[74d31bc1c7288efd]::hir::map::Map>::attrs
  51:     0x7fb8a9dfdf33 - rustc_passes[58fb231d5542acc4]::entry::entry_fn
  52:     0x7fb8a9de9709 - rustc_query_system[38efe1ae13b76606]::query::plumbing::try_execute_query::<rustc_query_impl[d894186be28c7657]::queries::entry_fn, rustc_query_impl[d894186be28c7657]::plumbing::QueryCtxt>
  53:     0x7fb8a9de93dd - <rustc_query_impl[d894186be28c7657]::Queries as rustc_middle[74d31bc1c7288efd]::ty::query::QueryEngine>::entry_fn
  54:     0x7fb8a9cb6548 - <rustc_session[86cf650fda0448f5]::session::Session>::time::<core[a53159a38bb5d97c]::option::Option<(rustc_span[5acbb0d3e38bbf81]::def_id::DefId, rustc_session[86cf650fda0448f5]::config::EntryFnType)>, rustc_interface[69aa8c17999313ff]::passes::analysis::{closure#0}::{closure#0}::{closure#0}>
  55:     0x7fb8a9a93794 - <rustc_session[86cf650fda0448f5]::session::Session>::time::<(), rustc_interface[69aa8c17999313ff]::passes::analysis::{closure#0}>
  56:     0x7fb8a9a92014 - rustc_interface[69aa8c17999313ff]::passes::analysis
  57:     0x7fb8a9d3e3a2 - rustc_query_system[38efe1ae13b76606]::query::plumbing::try_execute_query::<rustc_query_impl[d894186be28c7657]::queries::analysis, rustc_query_impl[d894186be28c7657]::plumbing::QueryCtxt>
  58:     0x7fb8a9d3e0b0 - <rustc_query_impl[d894186be28c7657]::Queries as rustc_middle[74d31bc1c7288efd]::ty::query::QueryEngine>::analysis
  59:     0x7fb8a97ba90a - <rustc_middle[74d31bc1c7288efd]::ty::context::GlobalCtxt>::enter::<rustc_driver_impl[b4ece89b41fa04d8]::run_compiler::{closure#1}::{closure#2}::{closure#4}, core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>>
  60:     0x7fb8a97b9b48 - <rustc_interface[69aa8c17999313ff]::interface::Compiler>::enter::<rustc_driver_impl[b4ece89b41fa04d8]::run_compiler::{closure#1}::{closure#2}, core[a53159a38bb5d97c]::result::Result<core[a53159a38bb5d97c]::option::Option<rustc_interface[69aa8c17999313ff]::queries::Linker>, rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>>
  61:     0x7fb8a97b7b6f - rustc_span[5acbb0d3e38bbf81]::set_source_map::<core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>, rustc_interface[69aa8c17999313ff]::interface::run_compiler<core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>, rustc_driver_impl[b4ece89b41fa04d8]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
  62:     0x7fb8a97b7200 - std[b0e36382822581c2]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[69aa8c17999313ff]::util::run_in_thread_pool_with_globals<rustc_interface[69aa8c17999313ff]::interface::run_compiler<core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>, rustc_driver_impl[b4ece89b41fa04d8]::run_compiler::{closure#1}>::{closure#0}, core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>>
  63:     0x7fb8a97b6b21 - <<std[b0e36382822581c2]::thread::Builder>::spawn_unchecked_<rustc_interface[69aa8c17999313ff]::util::run_in_thread_pool_with_globals<rustc_interface[69aa8c17999313ff]::interface::run_compiler<core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>, rustc_driver_impl[b4ece89b41fa04d8]::run_compiler::{closure#1}>::{closure#0}, core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a53159a38bb5d97c]::result::Result<(), rustc_span[5acbb0d3e38bbf81]::ErrorGuaranteed>>::{closure#1} as core[a53159a38bb5d97c]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  64:     0x7fb8a7376365 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h2b4cb02d9a218e1d
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/alloc/src/boxed.rs:1962:9
  65:     0x7fb8a7376365 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbd8144eacfab6e10
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/alloc/src/boxed.rs:1962:9
  66:     0x7fb8a7376365 - std::sys::unix::thread::Thread::new::thread_start::h95499a4b2fca6f4a
                               at /rustc/1c42cb4ef0544fbfaa500216e53382d6b079c001/library/std/src/sys/unix/thread.rs:108:17
  67:     0x7fb8a7110bb5 - <unknown>
  68:     0x7fb8a7192d90 - <unknown>
  69:                0x0 - <unknown>

error: the compiler unexpectedly panicked. this is a bug.

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 1.71.0-nightly (1c42cb4ef 2023-04-26) running on x86_64-unknown-linux-gnu

query stack during panic:
#0 [limits] looking up limits
#1 [hir_crate] getting the crate HIR
end of query stack
thread panicked while panicking. aborting.

[clubby789]

Further reduced:

fn wrap(self: Wrap<{ fn bar(&self) {} }>) -> &() {
  &()
}

[matthiaskrgr]

searched toolchains nightly-2023-01-26 through nightly-2023-04-28
Regression in nightly-2023-01-29
searched toolchains ef98292 through 1e22541
Regression in 6cd6bad
#101692 cc @cjgillot

[cjgillot]

@matthiaskrgr Are you sure? The linked PR does not touch parser nor lowering. It just touches typeck and what happens after it.

[matthiaskrgr]

oh right, hm, I'm getting different results now, maybe I forgot to press ctrl+s on the bisection snippet... 🙃

searched toolchains nightly-2022-07-14 through nightly-2023-04-28

Regression in nightly-2022-07-26

commit[0] 2022-07-24: Auto merge of #99687 - RalfJung:rollup-bojacrc, r=RalfJung
commit[1] 2022-07-24: Auto merge of #99603 - fasterthanlime:ra-subtree-2, r=jyn514
commit[2] 2022-07-25: Auto merge of #97581 - AngelicosPhosphoros:improve_calloc_check_in_vec_macro_for_tuples, r=Mark-Simulacrum
commit[3] 2022-07-25: Auto merge of #99676 - thomcc:dont-overwrite, r=tmiasko
commit[4] 2022-07-25: Auto merge of #98770 - klensy:no-string-dupes-ugly, r=cjgillot
commit[5] 2022-07-25: Auto merge of #99600 - tmiasko:subst-folder, r=petrochenkov
commit[6] 2022-07-25: Auto merge of #99707 - JohnTitor:rollup-74rb8vq, r=JohnTitor
commit[7] 2022-07-25: Auto merge of #85673 - csmoe:export-exe-sym, r=bjorn3
commit[8] 2022-07-25: Auto merge of #99722 - RalfJung:miri, r=RalfJung
commit[9] 2022-07-25: Auto merge of #97313 - cjgillot:ast-lifetimes-anon, r=petrochenkov

maybe #97313 ?