erroneous constant used panics the compiler

[FlawlessDeveloper]

Code

https://github.com/FlawlessDeveloper/Stackyy

Meta

rustc --version --verbose:

rustc 1.61.0-nightly (68369a041 2022-02-22)
binary: rustc
commit-hash: 68369a041cea809a87e5bd80701da90e0e0a4799
commit-date: 2022-02-22
host: x86_64-unknown-linux-gnu
release: 1.61.0-nightly
LLVM version: 14.0.0

Error output

error: erroneous constant used
  --> src/vm.rs:88:35
   |
88 | ...   runtime_error(format!("Typecheck desync happened. Responsible operation: {:#?}", self.last_op.clone().unwrap()), position.clone());
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ referenced constant has errors
   |
   = note: `#[deny(const_err)]` on by default
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: erroneous constant used
  --> src/vm.rs:88:27
   |
88 | ...or(format!("Typecheck desync happened. Responsible operation: {:#?}", self.last_op.clone().unwrap()), position.clone());
   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ referenced constant has errors
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
   = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)

error: erroneous constant used
  --> src/vm.rs:91:82
   |
91 |         if operation.type_check(&self.ops, &mut self.type_stack, false).error == ErrorTypes::None {
   |                                                                                  ^^^^^^^^^^^^^^^^ referenced constant has errors
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: erroneous constant used
   --> src/vm.rs:480:45
    |
480 |                     runtime_warning(format!("Operation: {:?} not implemented yet", operation), position.clone())
    |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: erroneous constant used
   --> src/vm.rs:126:48
    |
126 | ...                   print!("{}", int);
    |                              ^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: erroneous constant used
   --> src/vm.rs:129:48
    |
129 | ...                   print!("*{:#x}", pointer);
    |                              ^^^^^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: erroneous constant used
   --> src/vm.rs:129:41
    |
129 | ...                   print!("*{:#x}", pointer);
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
    = note: this error originates in the macro `$crate::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)

error: erroneous constant used
   --> src/vm.rs:132:48
    |
132 | ...                   print!("{}", str)
    |                              ^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: erroneous constant used
   --> src/vm.rs:135:48
    |
135 | ...                   print!("{}", bool)
    |                              ^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: erroneous constant used
   --> src/vm.rs:138:48
    |
138 | ...                   print!("*{}()", name)
    |                              ^^^^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: erroneous constant used
   --> src/vm.rs:145:43
    |
145 | ...                   if int == Internal::PrintLn {
    |                                 ^^^^^^^^^^^^^^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: erroneous constant used
   --> src/vm.rs:146:37
    |
146 | ...                   println!();
    |                       ^^^^^^^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
    = note: this error originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)

error: erroneous constant used
   --> src/vm.rs:146:37
    |
146 | ...                   println!();
    |                       ^^^^^^^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
    = note: this error originates in the macro `$crate::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)

error: erroneous constant used
   --> src/vm.rs:177:42
    |
177 | ...                   println!("{:#?}", self.stack);
    |                                ^^^^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: erroneous constant used
   --> src/vm.rs:177:33
    |
177 | ...                   println!("{:#?}", self.stack);
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
    = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)

error: erroneous constant used
   --> src/vm.rs:256:81
    |
256 | ...                   self.stack.push(RegisterType::Int(if int == Internal::Cubed {
    |                                                                   ^^^^^^^^^^^^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: erroneous constant used
   --> src/vm.rs:375:43
    |
375 | ...                   if int != Internal::ReflectionRemoveStrDrop {
    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: erroneous constant used
   --> src/vm.rs:445:31
    |
445 |                     if top != CallEnum::None {
    |                               ^^^^^^^^^^^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: erroneous constant used
   --> src/vm.rs:458:51
    |
458 | ...                   runtime_error(format!("Function: {} does not exist", fnc), position.clone());
    |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: erroneous constant used
   --> src/vm.rs:484:35
    |
484 |             runtime_error(format!("Function {} failed type check ", fn_name), position);
    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ referenced constant has errors
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>

error: internal compiler error: /rustc/68369a041cea809a87e5bd80701da90e0e0a4799/compiler/rustc_codegen_ssa/src/mir/constant.rs:42:20: encountered bad ConstKind after monomorphizing: Error(DelaySpanBugEmitted(()))
  --> src/vm.rs:88:35
   |
88 | ...   runtime_error(format!("Typecheck desync happened. Responsible operation: {:#?}", self.last_op.clone().unwrap()), position.clone());

Backtrace

thread 'rustc' panicked at 'Box<dyn Any>', /rustc/68369a041cea809a87e5bd80701da90e0e0a4799/compiler/rustc_errors/src/lib.rs:1106:9
stack backtrace:
   0: std::panicking::begin_panic::<rustc_errors::ExplicitBug>
   1: std::panic::panic_any::<rustc_errors::ExplicitBug>
   2: <rustc_errors::HandlerInner>::span_bug::<rustc_span::span_encoding::Span>
   3: <rustc_errors::Handler>::span_bug::<rustc_span::span_encoding::Span>
   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::span_bug_fmt::<rustc_span::span_encoding::Span>
   7: <rustc_codegen_ssa::mir::FunctionCx<rustc_codegen_llvm::builder::Builder>>::codegen_rvalue_operand
   8: rustc_codegen_ssa::mir::codegen_mir::<rustc_codegen_llvm::builder::Builder>
   9: rustc_codegen_llvm::base::compile_codegen_unit::module_codegen
  10: rustc_codegen_llvm::base::compile_codegen_unit
  11: rustc_codegen_ssa::base::codegen_crate::<rustc_codegen_llvm::LlvmCodegenBackend>
  12: <rustc_codegen_llvm::LlvmCodegenBackend as rustc_codegen_ssa::traits::backend::CodegenBackend>::codegen_crate
  13: <rustc_session::session::Session>::time::<alloc::boxed::Box<dyn core::any::Any>, rustc_interface::passes::start_codegen::{closure#0}>
  14: <rustc_interface::passes::QueryContext>::enter::<<rustc_interface::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core::result::Result<alloc::boxed::Box<dyn core::any::Any>, rustc_errors::ErrorReported>>
  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: rustc_interface::interface::create_compiler_and_run::<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>
  19: <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorReported>>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

[Milo123459]

Can you add a MCVE?

[matthiaskrgr]

Might be related to #94502

[FlawlessDeveloper]

Can you add a MCVE?

The referenced issue #94502 referenced above has already a MCVE that I have tested which also produces the same error.
Ill also append the example here so you dont have to search for it.

struct Repro;

impl Repro {
    fn get(&self) -> &i32 {
        &3
    }

    fn insert(&mut self, _: i32) {}
}

fn main() {
    let x = &0;
    let mut conflict = Repro;
    let prev = conflict.get();
    conflict.insert(*prev + *x);
}

[pietroalbini]

@FlawlessDeveloper can you check with a more recent nightly?

[FlawlessDeveloper]

The MVCE now compiles and also correctly outputs a warning

[pietroalbini]

Great! Closing this issue then.