ICE with next-solver: thread 'rustc' panicked at compiler\rustc_hir_analysis\src\hir_ty_lowering\mod.rs:1733:65: called `Option::unwrap()` on a `None` value

[823984418]

Code

trait Foo {
    type Item;
    fn foo(&mut self);
}

impl Foo for () {
    type Item = Option<()>;

    fn foo(&mut self) {
        let _ = Self::Item::None;
    }
}

Meta

rustc --version --verbose:

rustc 1.84.0-nightly (3f1be1ec7 2024-10-28)
binary: rustc
commit-hash: 3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777
commit-date: 2024-10-28
host: x86_64-pc-windows-msvc
release: 1.84.0-nightly
LLVM version: 19.1.1

Error output

thread 'rustc' panicked at compiler\rustc_hir_analysis\src\hir_ty_lowering\mod.rs:1733:65:                                                                                         
called `Option::unwrap()` on a `None` value

Backtrace

PS E:\code\rust_demo> $env:RUST_BACKTRACE=1    
PS E:\code\rust_demo> cargo run                
   Compiling rust_demo v0.1.0 (E:\code\rust_demo)
thread 'rustc' panicked at compiler\rustc_hir_analysis\src\hir_ty_lowering\mod.rs:1733:65:                                                                                         
called `Option::unwrap()` on a `None` value
stack backtrace:
   0: std::panicking::begin_panic_handler                                                                                                                                          
             at /rustc/3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777\library/std\src\panicking.rs:665
   1: core::panicking::panic_fmt
             at /rustc/3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777\library/core\src\panicking.rs:75
   2: core::panicking::panic
             at /rustc/3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777\library/core\src\panicking.rs:152
   3: core::option::unwrap_failed
             at /rustc/3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777\library/core\src\option.rs:2008
   4: <dyn rustc_hir_analysis::hir_ty_lowering::HirTyLowerer>::probe_generic_path_segments                                                                                         
   5: rustc_hir_typeck::typeck                                                                                                                                                     
   6: <<rustc_hir_typeck::fn_ctxt::FnCtxt>::deduce_closure_signature_from_predicates::MentionsTy as rustc_type_ir::visit::TypeVisitor<rustc_middle::ty::context::TyCtxt>>::visit_ty 
   7: <<rustc_hir_typeck::fn_ctxt::FnCtxt>::deduce_closure_signature_from_predicates::MentionsTy as rustc_type_ir::visit::TypeVisitor<rustc_middle::ty::context::TyCtxt>>::visit_ty 
   8: <<rustc_hir_typeck::fn_ctxt::FnCtxt>::deduce_closure_signature_from_predicates::MentionsTy as rustc_type_ir::visit::TypeVisitor<rustc_middle::ty::context::TyCtxt>>::visit_ty 
   9: <<rustc_hir_typeck::fn_ctxt::FnCtxt>::deduce_closure_signature_from_predicates::MentionsTy as rustc_type_ir::visit::TypeVisitor<rustc_middle::ty::context::TyCtxt>>::visit_ty 
  10: <<rustc_hir_typeck::fn_ctxt::FnCtxt>::deduce_closure_signature_from_predicates::MentionsTy as rustc_type_ir::visit::TypeVisitor<rustc_middle::ty::context::TyCtxt>>::visit_ty 
  11: rustc_hir_typeck::typeck
  12: rustc_hir_typeck::typeck
  13: rustc_query_impl::plumbing::query_key_hash_verify_all
  14: rustc_ty_utils::ty::self_ty_of_trait_impl_enabling_order_dep_trait_object_hack
  15: rustc_query_impl::plumbing::query_key_hash_verify_all
  16: <rustc_hir_typeck::upvar::InferBorrowKind as rustc_hir_typeck::expr_use_visitor::Delegate>::borrow
  17: rustc_hir_analysis::check_crate                                                                                                                                              
  18: rustc_interface::passes::resolver_for_lowering_raw
  19: rustc_interface::passes::analysis
  20: rustc_ty_utils::ty::adt_sized_constraint
  21: rustc_ty_utils::ty::adt_sized_constraint
  22: rustc_query_impl::query_system
  23: _rust_alloc_error_handler
  24: _rust_alloc_error_handler
  25: _rust_alloc_error_handler
  26: alloc::boxed::impl$48::call_once
             at /rustc/3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777\library/alloc\src\boxed.rs:2454
  27: alloc::boxed::impl$48::call_once
             at /rustc/3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777\library/alloc\src\boxed.rs:2454
  28: std::sys::pal::windows::thread::impl$0::new::thread_start
             at /rustc/3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777\library/std\src\sys\pal\windows\thread.rs:55
  29: BaseThreadInitThunk
  30: RtlUserThreadStart
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

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: please make sure that you have updated to the latest nightly

note: please attach the file at `E:\code\rust_demo\rustc-ice-2024-10-29T12_26_30-2056.txt` to your bug report

note: compiler flags: --crate-type bin -C embed-bitcode=no -C debuginfo=2 -C incremental=[REDACTED] -Z next-solver

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [typeck] type-checking `<impl at src/main.rs:6:1: 6:16>::foo`
#1 [analysis] running analysis passes on this crate
end of query stack
error: could not compile `rust_demo` (bin "rust_demo")

Caused by:
  process didn't exit successfully: `D:\Program Files\rust\rustup\toolchains\nightly-x86_64-pc-windows-msvc\bin\rustc.exe --crate-name rust_demo --edition=2021 src/main.rs --error-
format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --diagnostic-width=179 --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --check-cfg cf
g(docsrs) --check-cfg "cfg(feature, values())" -C metadata=f204a4422c344f70 --out-dir E:\code\rust_demo\target\x86_64-pc-windows-msvc\debug\deps --target x86_64-pc-windows-msvc -C 
incremental=E:\code\rust_demo\target\x86_64-pc-windows-msvc\debug\incremental -L dependency=E:\code\rust_demo\target\x86_64-pc-windows-msvc\debug\deps -L dependency=E:\code\rust_demo\target\debug\deps -Znext-solver` (exit code: 101)