ICE while inferring the type of a static LazyLock

[V-Fries]

Code

use std::sync::LazyLock;

static TEST = LazyLock::new(|| 42);

fn main() {}

Meta

rustc --version --verbose:

rustc 1.81.0 (eeb90cda1 2024-09-04)
binary: rustc
commit-hash: eeb90cda1969383f56a2637cbd3037bdf598841c
commit-date: 2024-09-04
host: x86_64-apple-darwin
release: 1.81.0
LLVM version: 18.1.7

The bug could not be reproduced in the nightly build

Error output

error: missing type for `static` item
 --> src/main.rs:3:11
  |
3 | static FOO = LazyLock::new(|| 42);
  |           ^
  |
note: however, the inferred type `LazyLock<i32, {closure@main.rs:3:28}>` cannot be named
 --> src/main.rs:3:14
  |
3 | static FOO = LazyLock::new(|| 42);
  |              ^^^^^^^^^^^^^^^^^^^^

thread 'rustc' panicked at compiler/rustc_const_eval/src/interpret/validity.rs:741:21:
assertion `left == right` failed
  left: Mut
 right: Not

Backtrace

   0: _rust_begin_unwind
   1: core::panicking::panic_fmt
   2: core::panicking::assert_failed_inner
   3: core::panicking::assert_failed::<rustc_ast_ir::Mutability, rustc_ast_ir::Mutability>
   4: rustc_const_eval::interpret::validity::mutability::<rustc_const_eval::const_eval::machine::CompileTimeMachine>
   5: <rustc_const_eval::interpret::validity::ValidityVisitor<rustc_const_eval::const_eval::machine::CompileTimeMachine> as rustc_const_eval::interpret::visitor::ValueVisitor<rustc_const_eval::const_eva
l::machine::CompileTimeMachine>>::visit_value
   6: <rustc_const_eval::interpret::validity::ValidityVisitor<rustc_const_eval::const_eval::machine::CompileTimeMachine> as rustc_const_eval::interpret::visitor::ValueVisitor<rustc_const_eval::const_eva
l::machine::CompileTimeMachine>>::visit_field
   7: <rustc_const_eval::interpret::validity::ValidityVisitor<rustc_const_eval::const_eval::machine::CompileTimeMachine> as rustc_const_eval::interpret::visitor::ValueVisitor<rustc_const_eval::const_eva
l::machine::CompileTimeMachine>>::visit_value
   8: <rustc_const_eval::interpret::validity::ValidityVisitor<rustc_const_eval::const_eval::machine::CompileTimeMachine> as rustc_const_eval::interpret::visitor::ValueVisitor<rustc_const_eval::const_eva
l::machine::CompileTimeMachine>>::visit_field
   9: <rustc_const_eval::interpret::validity::ValidityVisitor<rustc_const_eval::const_eval::machine::CompileTimeMachine> as rustc_const_eval::interpret::visitor::ValueVisitor<rustc_const_eval::const_eva
l::machine::CompileTimeMachine>>::visit_value
  10: <rustc_const_eval::interpret::validity::ValidityVisitor<rustc_const_eval::const_eval::machine::CompileTimeMachine> as rustc_const_eval::interpret::visitor::ValueVisitor<rustc_const_eval::const_eva
l::machine::CompileTimeMachine>>::visit_field
  11: <rustc_const_eval::interpret::validity::ValidityVisitor<rustc_const_eval::const_eval::machine::CompileTimeMachine> as rustc_const_eval::interpret::visitor::ValueVisitor<rustc_const_eval::const_eva
l::machine::CompileTimeMachine>>::visit_value
  12: <rustc_const_eval::interpret::validity::ValidityVisitor<rustc_const_eval::const_eval::machine::CompileTimeMachine> as rustc_const_eval::interpret::visitor::ValueVisitor<rustc_const_eval::const_eva
l::machine::CompileTimeMachine>>::visit_field
  13: <rustc_const_eval::interpret::validity::ValidityVisitor<rustc_const_eval::const_eval::machine::CompileTimeMachine> as rustc_const_eval::interpret::visitor::ValueVisitor<rustc_const_eval::const_eva
l::machine::CompileTimeMachine>>::visit_value
  14: <rustc_const_eval::interpret::eval_context::InterpCx<rustc_const_eval::const_eval::machine::CompileTimeMachine>>::validate_operand_internal
  15: rustc_const_eval::const_eval::eval_queries::eval_static_initializer_provider
      [... omitted 2 frames ...]
  16: rustc_hir_analysis::check_crate
  17: rustc_interface::passes::run_required_analyses
  18: rustc_interface::passes::analysis
      [... omitted 1 frame ...]
  19: <rustc_interface::queries::QueryResult<&rustc_middle::ty::context::GlobalCtxt>>::enter::<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}::{closu
re#1}::{closure#5}>
  20: rustc_interface::interface::run_compiler::<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#1}

[workingjubilee]

It does not reproduce on nightly because it is fixed.

Duplicate of #124164