Error when passing reference to Allocator impl to Box::new_in #92054
Description
Code
Could not isolate, but I think it was caused by passing a reference to a custom impl of Allocator to Box::new_zeroed_slice_in.
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rustc --version --verbose:
rustc 1.59.0-nightly (6bda5b331 2021-12-12) binary: rustc commit-hash: 6bda5b331cfe7e04e1fe348c58a928fc2b650f4f commit-date: 2021-12-12 host: x86_64-unknown-linux-gnu release: 1.59.0-nightly LLVM version: 13.0.0 Error output
error: internal compiler error: /rustc/6bda5b331cfe7e04e1fe348c58a928fc2b650f4f/compiler/rustc_codegen_ssa/src/mir/operand.rs:132:38: Deref of by-Ref operand OperandRef(Ref((%"alloc::boxed::Box<[u64], &virtual_memory::LazyWrp<spin::mutex::Mutex<virtual_m) thread 'rustc' panicked at 'Box<dyn Any>', compiler/rustc_errors/src/lib.rs:1170:9 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace note: 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 1.59.0-nightly (6bda5b331 2021-12-12) running on x86_64-unknown-linux-gnu note: compiler flags: -Z unstable-options -C panic=abort -C embed-bitcode=no -C debuginfo=2 -C incremental -C link-args=-image-base 0xffff800000000000 --crate-type bin note: some of the compiler flags provided by cargo are hidden query stack during panic: end of query stack Backtrace
thread 'rustc' panicked at 'Box<dyn Any>', compiler/rustc_errors/src/lib.rs:1170:9 stack backtrace: 0: std::panicking::begin_panic::<rustc_errors::ExplicitBug> 1: std::panic::panic_any::<rustc_errors::ExplicitBug> 2: <rustc_errors::HandlerInner>::bug 3: <rustc_errors::Handler>::bug 4: rustc_middle::ty::context::tls::with_opt::<rustc_middle::util::bug::opt_span_bug_fmt<rustc_span::span_encoding::Span>::{closure#0}, ()> 5: rustc_middle::util::bug::opt_span_bug_fmt::<rustc_span::span_encoding::Span> 6: rustc_middle::util::bug::bug_fmt 7: <rustc_codegen_ssa::mir::FunctionCx<rustc_codegen_llvm::builder::Builder>>::codegen_place 8: <rustc_codegen_ssa::mir::FunctionCx<rustc_codegen_llvm::builder::Builder>>::codegen_rvalue_operand 9: rustc_codegen_ssa::mir::codegen_mir::<rustc_codegen_llvm::builder::Builder> 10: rustc_codegen_llvm::base::compile_codegen_unit::module_codegen 11: <rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle::ty::context::TyCtxt, rustc_span::symbol::Symbol, rustc_codegen_ssa::ModuleCodegen<rustc_codegen_llvm::ModuleLlvm>> 12: rustc_codegen_llvm::base::compile_codegen_unit 13: <rustc_codegen_llvm::LlvmCodegenBackend as rustc_codegen_ssa::traits::backend::CodegenBackend>::codegen_crate 14: <rustc_session::session::Session>::time::<alloc::boxed::Box<dyn core::any::Any>, rustc_interface::passes::start_codegen::{closure#0}> 15: <rustc_interface::queries::Queries>::ongoing_codegen 16: <rustc_interface::interface::Compiler>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}, core::result::Result<core::option::Option<rustc_interface::queries::Linker>, rustc_errors::ErrorReported>> 17: rustc_span::with_source_map::<core::result::Result<(), rustc_errors::ErrorReported>, rustc_interface::interface::create_compiler_and_run<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>::{closure#1}> 18: <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_interface::util::setup_callbacks_and_run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_> note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.