ICE: `region variables should not be hashed`

[matthiaskrgr]

Code

needs debug assertions
build with rustc -Zdump-mir=all -Zdump-mir-dir=dir

code from rustc cant-hide-behind-doubly-indirect-embedded.rs
original

// This is part of a set of tests exploring the different ways a
// structural-match ADT might try to hold a
// non-structural-match in hidden manner that lets matches
// through that we had intended to reject.
//
// See discussion on rust-lang/rust#62307 and rust-lang/rust#62339
#![warn(indirect_structural_match)]
// run-pass

struct NoDerive(#[allow(unused_tuple_struct_fields)] i32);

// This impl makes NoDerive irreflexive.
impl PartialEq for NoDerive { fn eq(&self, _: &Self) -> bool { false } }

impl Eq for NoDerive { }

#[derive(PartialEq, Eq)]
struct WrapInline<'a>(&'a &'a NoDerive);

const WRAP_DOUBLY_INDIRECT_INLINE: & &WrapInline = & &WrapInline(& & NoDerive(0));

fn main() {
    match WRAP_DOUBLY_INDIRECT_INLINE {
        WRAP_DOUBLY_INDIRECT_INLINE => { panic!("WRAP_DOUBLY_INDIRECT_INLINE matched itself"); }
        //~^ WARN must be annotated with `#[derive(PartialEq, Eq)]`
        //~| WARN this was previously accepted
        _ => { println!("WRAP_DOUBLY_INDIRECT_INLINE correctly did not match itself"); }
    }
}

reduced a bit

struct NoDerive(i32);

impl PartialEq for NoDerive {
    fn eq(&self, _: &Self) -> bool {
        false
    }
}

impl Eq for NoDerive {}

#[derive(PartialEq, Eq)]
struct WrapInline<'a>(&'a &'a NoDerive);

const WRAP_DOUBLY_INDIRECT_INLINE: &&WrapInline = &&WrapInline(&&NoDerive(0));

fn main() {
    match WRAP_DOUBLY_INDIRECT_INLINE {
        WRAP_DOUBLY_INDIRECT_INLINE | _ => {}
    }
}

Meta

rustc --version --verbose:

b2b34bd83192c3d16c88655158f7d8d612513e88

Error output

warning: to use a constant of type `NoDerive` in a pattern, `NoDerive` must be annotated with `#[derive(PartialEq, Eq)]`
  --> treereduce.out:18:9
   |
18 |         WRAP_DOUBLY_INDIRECT_INLINE | _ => {}
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = 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 #62411 <https://github.com/rust-lang/rust/issues/62411>
   = note: the traits must be derived, manual `impl`s are not sufficient
   = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details
   = note: `#[warn(indirect_structural_match)]` on by default

warning: 1 warning emitted

Backtrace

thread 'rustc' panicked at 'region variables should not be hashed: '?11', /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_type_ir/src/sty.rs:1258:17
stack backtrace:
   0:     0x7fd40d2f1156 - trace
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7fd40d2f1156 - trace_unsynchronized<std::sys_common::backtrace::_print_fmt::{closure_env#1}>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fd40d2f1156 - _print_fmt
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7fd40d2f1156 - fmt
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7fd40d33d9f8 - fmt
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/rt.rs:138:9
   5:     0x7fd40d33d9f8 - write
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1094:21
   6:     0x7fd40d2aafbf - write_fmt<std::sys::unix::stdio::Stderr>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/io/mod.rs:1713:15
   7:     0x7fd40d2f0f55 - _print
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x7fd40d2f0f55 - print
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x7fd40d2ca06c - {closure#1}
  10:     0x7fd40d2c9d42 - default_hook
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:288:9
  11:     0x7fd40ec7954b - call<(&core::panic::panic_info::PanicInfo), (dyn core::ops::function::Fn<(&core::panic::panic_info::PanicInfo), Output=()> + core::marker::Send + core::marker::Sync), alloc::alloc::Global>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:1999:9
  12:     0x7fd40ec7954b - {closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver_impl/src/lib.rs:1269:13
  13:     0x7fd40d2ca855 - call<(&core::panic::panic_info::PanicInfo), (dyn core::ops::function::Fn<(&core::panic::panic_info::PanicInfo), Output=()> + core::marker::Send + core::marker::Sync), alloc::alloc::Global>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:1999:9
  14:     0x7fd40d2ca855 - rust_panic_with_hook
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:709:13
  15:     0x7fd40d2f1467 - {closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:597:13
  16:     0x7fd40d2f1236 - __rust_end_short_backtrace<std::panicking::begin_panic_handler::{closure_env#0}, !>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:151:18
  17:     0x7fd40d2ca3c2 - begin_panic_handler
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:593:5
  18:     0x7fd40d27e133 - panic_fmt
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panicking.rs:67:14
  19:     0x7fd40fc8fbb3 - hash_stable<rustc_query_system::ich::hcx::StableHashingContext, rustc_middle::ty::context::TyCtxt>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_type_ir/src/sty.rs:1258:17
  20:     0x7fd40fc8fbb3 - hash_stable<rustc_type_ir::sty::RegionKind<rustc_middle::ty::context::TyCtxt>, rustc_query_system::ich::hcx::StableHashingContext>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/intern.rs:107:9
  21:     0x7fd40fc8fbb3 - hash_stable
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/sty.rs:1458:61
  22:     0x7fd40fc8fbb3 - hash_stable
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/subst.rs:50:75
  23:     0x7fd40fc8fbb3 - hash_stable
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/impls_ty.rs:72:9
  24:     0x7fd410815c42 - hash_stable<rustc_middle::ty::subst::GenericArg, rustc_query_system::ich::hcx::StableHashingContext>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/stable_hasher.rs:376:13
  25:     0x7fd410815c42 - {closure#0}<rustc_middle::ty::subst::GenericArg>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/impls_ty.rs:32:13
  26:     0x7fd410815c42 - try_with<core::cell::RefCell<std::collections::hash::map::HashMap<(usize, usize, rustc_data_structures::stable_hasher::HashingControls), rustc_data_structures::fingerprint::Fingerprint, core::hash::BuildHasherDefault<rustc_hash::FxHasher>>>, rustc_middle::ty::impls_ty::{impl#0}::hash_stable::{closure_env#0}<rustc_middle::ty::subst::GenericArg>, rustc_data_structures::fingerprint::Fingerprint>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/local.rs:270:16
  27:     0x7fd410815c42 - with<core::cell::RefCell<std::collections::hash::map::HashMap<(usize, usize, rustc_data_structures::stable_hasher::HashingControls), rustc_data_structures::fingerprint::Fingerprint, core::hash::BuildHasherDefault<rustc_hash::FxHasher>>>, rustc_middle::ty::impls_ty::{impl#0}::hash_stable::{closure_env#0}<rustc_middle::ty::subst::GenericArg>, rustc_data_structures::fingerprint::Fingerprint>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/local.rs:246:9
  28:     0x7fd410815c42 - hash_stable<rustc_middle::ty::subst::GenericArg>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/impls_ty.rs:25:26
  29:     0x7fd410910aa7 - hash_stable<rustc_query_system::ich::hcx::StableHashingContext, rustc_middle::ty::context::TyCtxt>
  30:     0x7fd410910aa7 - hash_stable<rustc_type_ir::sty::TyKind<rustc_middle::ty::context::TyCtxt>, rustc_query_system::ich::hcx::StableHashingContext>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_type_ir/src/ty_info.rs:108:17
  31:     0x7fd4106cdc98 - hash_stable<rustc_type_ir::ty_info::WithCachedTypeInfo<rustc_type_ir::sty::TyKind<rustc_middle::ty::context::TyCtxt>>, rustc_query_system::ich::hcx::StableHashingContext>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/intern.rs:107:9
  32:     0x7fd4106cdc98 - hash_stable
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/mod.rs:446:61
  33:     0x7fd4106cdc98 - hash_stable
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/consts.rs:24:48
  34:     0x7fd4106cdc98 - hash_stable<rustc_middle::ty::consts::ConstData, rustc_query_system::ich::hcx::StableHashingContext>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/intern.rs:107:16
  35:     0x7fd4106cdc98 - hash_stable
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/consts.rs:19:61
  36:     0x7fd4106cdc98 - {closure#0}<rustc_middle::ty::context::TyCtxt, rustc_middle::ty::consts::Const>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/dep_graph/dep_node.rs:148:13
  37:     0x7fd4106cdc98 - with_stable_hashing_context<rustc_data_structures::fingerprint::Fingerprint, rustc_query_system::dep_graph::dep_node::{impl#2}::to_fingerprint::{closure_env#0}<rustc_middle::ty::context::TyCtxt, rustc_middle::ty::consts::Const>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context.rs:1011:9
  38:     0x7fd4106cdc98 - with_stable_hashing_context<rustc_data_structures::fingerprint::Fingerprint, rustc_query_system::dep_graph::dep_node::{impl#2}::to_fingerprint::{closure_env#0}<rustc_middle::ty::context::TyCtxt, rustc_middle::ty::consts::Const>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/dep_graph/mod.rs:78:9
  39:     0x7fd4106cdc98 - to_fingerprint<rustc_middle::ty::context::TyCtxt, rustc_middle::ty::consts::Const>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/dep_graph/dep_node.rs:146:9
  40:     0x7fd4106cdc98 - execute_job_non_incr<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_middle::ty::consts::Const, rustc_middle::query::erase::Erased<[u8; 24]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:476:17
  41:     0x7fd4106cdc98 - execute_job<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_middle::ty::consts::Const, rustc_middle::query::erase::Erased<[u8; 24]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:413:9
  42:     0x7fd4106cdc98 - try_execute_query<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_middle::ty::consts::Const, rustc_middle::query::erase::Erased<[u8; 24]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:358:13
  43:     0x7fd4107afa88 - {closure#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_middle::ty::consts::Const, rustc_middle::query::erase::Erased<[u8; 24]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:810:32
  44:     0x7fd4107afa88 - maybe_grow<rustc_middle::query::erase::Erased<[u8; 24]>, rustc_query_system::query::plumbing::get_query_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_middle::ty::consts::Const, rustc_middle::query::erase::Erased<[u8; 24]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                               at /home/matthias/.cargo/registry/src/index.crates.io-6f17d22bba15001f/stacker-0.1.15/src/lib.rs:55:9
  45:     0x7fd4107afa88 - ensure_sufficient_stack<rustc_middle::query::erase::Erased<[u8; 24]>, rustc_query_system::query::plumbing::get_query_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_middle::ty::consts::Const, rustc_middle::query::erase::Erased<[u8; 24]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/stack.rs:17:5
  46:     0x7fd4107afa88 - get_query_non_incr<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_middle::ty::consts::Const, rustc_middle::query::erase::Erased<[u8; 24]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:810:5
  47:     0x7fd4107afa88 - __rust_end_short_backtrace
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/plumbing.rs:554:26
  48:     0x7fd40fd83dd6 - query_get_at<rustc_query_system::query::caches::DefaultCache<rustc_middle::ty::consts::Const, rustc_middle::query::erase::Erased<[u8; 24]>>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/query/plumbing.rs:155:17
  49:     0x7fd40fd83dd6 - destructure_const
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/query/mod.rs:2179:1
  50:     0x7fd40fd83dd6 - destructure_const
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/query/plumbing.rs:376:35
  51:     0x7fd40fd83dd6 - pretty_print_const_valtree<rustc_middle::ty::print::pretty::FmtPrinter>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/print/pretty.rs:1600:43
  52:     0x7fd40fd83d2c - pretty_print_const_valtree<rustc_middle::ty::print::pretty::FmtPrinter>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/print/pretty.rs:1586:21
  53:     0x7fd40fd83d2c - pretty_print_const_valtree<rustc_middle::ty::print::pretty::FmtPrinter>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/print/pretty.rs:1586:21
  54:     0x7fd40fd8183a - pretty_print_const<rustc_middle::ty::print::pretty::FmtPrinter>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/print/pretty.rs:1373:24
  55:     0x7fd40fc4f059 - {closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/mir/mod.rs:2802:18
  56:     0x7fd40fc4f059 - {closure#0}<rustc_middle::mir::pretty_print_const::{closure_env#0}, core::result::Result<(), core::fmt::Error>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:144:28
  57:     0x7fd40fc4f059 - {closure#0}<rustc_middle::ty::context::tls::with::{closure_env#0}<rustc_middle::mir::pretty_print_const::{closure_env#0}, core::result::Result<(), core::fmt::Error>>, core::result::Result<(), core::fmt::Error>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:111:36
  58:     0x7fd40fc4f059 - with_context_opt<rustc_middle::ty::context::tls::with_context::{closure_env#0}<rustc_middle::ty::context::tls::with::{closure_env#0}<rustc_middle::mir::pretty_print_const::{closure_env#0}, core::result::Result<(), core::fmt::Error>>, core::result::Result<(), core::fmt::Error>>, core::result::Result<(), core::fmt::Error>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:100:18
  59:     0x7fd40fc4f059 - with_context<rustc_middle::ty::context::tls::with::{closure_env#0}<rustc_middle::mir::pretty_print_const::{closure_env#0}, core::result::Result<(), core::fmt::Error>>, core::result::Result<(), core::fmt::Error>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:111:5
  60:     0x7fd40fc4f059 - with<rustc_middle::mir::pretty_print_const::{closure_env#0}, core::result::Result<(), core::fmt::Error>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:144:5
  61:     0x7fd40fc4f059 - pretty_print_const
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/mir/mod.rs:2798:5
  62:     0x7fd40d33d9f8 - fmt
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/rt.rs:138:9
  63:     0x7fd40d33d9f8 - write
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1094:21
  64:     0x7fd40d33e872 - core::fmt::Formatter::write_fmt::h59240f582ad6c2c4
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1560:9
  65:     0x7fd40fc7ae24 - fmt
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/mir/mod.rs:2764:9
  66:     0x7fd40fc7ae24 - fmt<rustc_middle::mir::Constant, alloc::alloc::Global>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:1882:9
  67:     0x7fd40fc7ae24 - fmt<alloc::boxed::Box<rustc_middle::mir::Constant, alloc::alloc::Global>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:2268:62
  68:     0x7fd40d33d9f8 - fmt
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/rt.rs:138:9
  69:     0x7fd40d33d9f8 - write
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1094:21
  70:     0x7fd40d33e872 - core::fmt::Formatter::write_fmt::h59240f582ad6c2c4
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1560:9
  71:     0x7fd40fcb1d75 - fmt
  72:     0x7fd40d33d9f8 - fmt
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/rt.rs:138:9
  73:     0x7fd40d33d9f8 - write
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1094:21
  74:     0x7fd40d33e872 - core::fmt::Formatter::write_fmt::h59240f582ad6c2c4
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1560:9
  75:     0x7fd40fcadd6d - fmt_head<core::fmt::Formatter>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/mir/terminator.rs:324:21
  76:     0x7fd40fcadd6d - fmt
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/mir/terminator.rs:268:9
  77:     0x7fd40d33d978 - fmt
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/rt.rs:138:9
  78:     0x7fd40d33d978 - run
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1142:11
  79:     0x7fd40d33d978 - write
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1110:26
  80:     0x7fd40d32fac7 - write_fmt<alloc::string::String>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:192:9
  81:     0x7fd40d32fac7 - format_inner
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/fmt.rs:610:16
  82:     0x7fd40e4bad1c - {closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/fmt.rs:614:34
  83:     0x7fd40e4bad1c - map_or_else<&str, alloc::string::String, alloc::fmt::format::{closure_env#0}, fn(&str) -> alloc::string::String>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/option.rs:1180:21
  84:     0x7fd40e4bad1c - format
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/fmt.rs:614:5
  85:     0x7fd40e4bad1c - write_basic_block<rustc_borrowck::nll::replace_regions_in_mir::{closure_env#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/macros.rs:120:19
  86:     0x7fd40e4bad1c - write_mir_fn<rustc_borrowck::nll::replace_regions_in_mir::{closure_env#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/mir/pretty.rs:321:9
  87:     0x7fd40e4bad1c - dump_matched_mir_node<rustc_borrowck::nll::replace_regions_in_mir::{closure_env#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/mir/pretty.rs:139:9
  88:     0x7fd40e4bad1c - dump_mir<rustc_borrowck::nll::replace_regions_in_mir::{closure_env#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/mir/pretty.rs:88:5
  89:     0x7fd40e4bad1c - replace_regions_in_mir
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_borrowck/src/nll.rs:75:5
  90:     0x7fd40e31bff7 - do_mir_borrowck
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_borrowck/src/lib.rs:217:9
  91:     0x7fd40e304599 - mir_borrowck
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_borrowck/src/lib.rs:147:27
  92:     0x7fd4108e480c - {closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/plumbing.rs:577:33
  93:     0x7fd4108e480c - __rust_begin_short_backtrace<rustc_query_impl::query_impl::mir_borrowck::dynamic_query::{closure#2}::{closure_env#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/plumbing.rs:506:18
  94:     0x7fd4108a72fc - {closure#2}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/plumbing.rs:574:25
  95:     0x7fd4108a72fc - call_once<rustc_query_impl::query_impl::mir_borrowck::dynamic_query::{closure_env#2}, (rustc_middle::ty::context::TyCtxt, rustc_span::def_id::LocalDefId)>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/ops/function.rs:250:5
  96:     0x7fd4107086c6 - compute<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/lib.rs:116:9
  97:     0x7fd4107086c6 - {closure#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:480:72
  98:     0x7fd4107086c6 - {closure#0}<rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, rustc_middle::query::erase::Erased<[u8; 8]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:82:9
  99:     0x7fd4107086c6 - try_with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/local.rs:270:16
 100:     0x7fd4107086c6 - with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/local.rs:246:9
 101:     0x7fd4107086c6 - enter_context<rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, rustc_middle::query::erase::Erased<[u8; 8]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:79:9
 102:     0x7fd4107086c6 - {closure#0}<rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/plumbing.rs:149:13
 103:     0x7fd4107086c6 - {closure#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:133:9
 104:     0x7fd4107086c6 - {closure#0}<rustc_middle::ty::context::tls::with_related_context::{closure_env#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:111:36
 105:     0x7fd4107086c6 - with_context_opt<rustc_middle::ty::context::tls::with_context::{closure_env#0}<rustc_middle::ty::context::tls::with_related_context::{closure_env#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:100:18
 106:     0x7fd4107086c6 - with_context<rustc_middle::ty::context::tls::with_related_context::{closure_env#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:111:5
 107:     0x7fd4107086c6 - with_related_context<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:124:5
 108:     0x7fd4107086c6 - start_query<rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/plumbing.rs:134:9
 109:     0x7fd4107086c6 - execute_job_non_incr<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:480:18
 110:     0x7fd4107086c6 - execute_job<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:413:9
 111:     0x7fd4107086c6 - try_execute_query<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:358:13
 112:     0x7fd4107aeb46 - {closure#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:810:32
 113:     0x7fd4107aeb46 - maybe_grow<rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::query::plumbing::get_query_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                               at /home/matthias/.cargo/registry/src/index.crates.io-6f17d22bba15001f/stacker-0.1.15/src/lib.rs:55:9
 114:     0x7fd4107aeb46 - ensure_sufficient_stack<rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::query::plumbing::get_query_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/stack.rs:17:5
 115:     0x7fd4107aeb46 - get_query_non_incr<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:810:5
 116:     0x7fd4107aeb46 - __rust_end_short_backtrace
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/plumbing.rs:554:26
 117:     0x7fd40f7882e9 - query_ensure<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/query/plumbing.rs:171:9
 118:     0x7fd40f7882e9 - mir_borrowck<rustc_span::def_id::LocalDefId>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/query/mod.rs:2179:1
 119:     0x7fd40f7882e9 - {closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:771:57
 120:     0x7fd40f7882e9 - {closure#0}<rustc_interface::passes::analysis::{closure#1}::{closure_env#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/hir/map/mod.rs:496:82
 121:     0x7fd40f7882e9 - {closure#0}<&[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#2}::par_body_owners::{closure_env#0}<rustc_interface::passes::analysis::{closure#1}::{closure_env#0}>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/sync.rs:218:66
 122:     0x7fd40f7882e9 - call_once<(), rustc_data_structures::sync::par_for_each_in::{closure#0}::{closure_env#0}<&[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#2}::par_body_owners::{closure_env#0}<rustc_interface::passes::analysis::{closure#1}::{closure_env#0}>>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panic/unwind_safe.rs:271:9
 123:     0x7fd40f79546b - do_call<core::panic::unwind_safe::AssertUnwindSafe<rustc_data_structures::sync::par_for_each_in::{closure#0}::{closure_env#0}<&[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#2}::par_body_owners::{closure_env#0}<rustc_interface::passes::analysis::{closure#1}::{closure_env#0}>>>, ()>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:500:40
 124:     0x7fd40f79546b - try<(), core::panic::unwind_safe::AssertUnwindSafe<rustc_data_structures::sync::par_for_each_in::{closure#0}::{closure_env#0}<&[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#2}::par_body_owners::{closure_env#0}<rustc_interface::passes::analysis::{closure#1}::{closure_env#0}>>>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:464:19
 125:     0x7fd40f79546b - catch_unwind<core::panic::unwind_safe::AssertUnwindSafe<rustc_data_structures::sync::par_for_each_in::{closure#0}::{closure_env#0}<&[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#2}::par_body_owners::{closure_env#0}<rustc_interface::passes::analysis::{closure#1}::{closure_env#0}>>>, ()>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panic.rs:142:14
 126:     0x7fd40f79546b - {closure#0}<&[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#2}::par_body_owners::{closure_env#0}<rustc_interface::passes::analysis::{closure#1}::{closure_env#0}>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/sync.rs:218:33
 127:     0x7fd40f79546b - for_each<rustc_span::def_id::LocalDefId, rustc_data_structures::sync::par_for_each_in::{closure_env#0}<&[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#2}::par_body_owners::{closure_env#0}<rustc_interface::passes::analysis::{closure#1}::{closure_env#0}>>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/slice/iter/macros.rs:204:21
 128:     0x7fd40f79546b - par_for_each_in<&[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#2}::par_body_owners::{closure_env#0}<rustc_interface::passes::analysis::{closure#1}::{closure_env#0}>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/sync.rs:217:13
 129:     0x7fd40f73a99e - par_body_owners<rustc_interface::passes::analysis::{closure#1}::{closure_env#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/hir/map/mod.rs:496:9
 130:     0x7fd40f73a99e - {closure#1}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:771:9
 131:     0x7fd40f73a99e - run<(), rustc_interface::passes::analysis::{closure_env#1}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:752:9
 132:     0x7fd40f73a99e - time<(), rustc_interface::passes::analysis::{closure_env#1}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:11:50
 133:     0x7fd40f7700b0 - analysis
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:770:5
 134:     0x7fd4108e860a - {closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/plumbing.rs:577:33
 135:     0x7fd4108e860a - __rust_begin_short_backtrace<rustc_query_impl::query_impl::analysis::dynamic_query::{closure#2}::{closure_env#0}, rustc_middle::query::erase::Erased<[u8; 1]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/plumbing.rs:506:18
 136:     0x7fd41096b928 - {closure#2}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/plumbing.rs:574:25
 137:     0x7fd41096b928 - call_once<rustc_query_impl::query_impl::analysis::dynamic_query::{closure_env#2}, (rustc_middle::ty::context::TyCtxt, ())>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/ops/function.rs:250:5
 138:     0x7fd410679ef9 - compute<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/lib.rs:116:9
 139:     0x7fd410679ef9 - {closure#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:480:72
 140:     0x7fd410679ef9 - {closure#0}<rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, rustc_middle::query::erase::Erased<[u8; 1]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:82:9
 141:     0x7fd410679ef9 - try_with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, rustc_middle::query::erase::Erased<[u8; 1]>>, rustc_middle::query::erase::Erased<[u8; 1]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/local.rs:270:16
 142:     0x7fd410679ef9 - with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, rustc_middle::query::erase::Erased<[u8; 1]>>, rustc_middle::query::erase::Erased<[u8; 1]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/local.rs:246:9
 143:     0x7fd410679ef9 - enter_context<rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, rustc_middle::query::erase::Erased<[u8; 1]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:79:9
 144:     0x7fd410679ef9 - {closure#0}<rustc_middle::query::erase::Erased<[u8; 1]>, rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/plumbing.rs:149:13
 145:     0x7fd410679ef9 - {closure#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<rustc_middle::query::erase::Erased<[u8; 1]>, rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, rustc_middle::query::erase::Erased<[u8; 1]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:133:9
 146:     0x7fd410679ef9 - {closure#0}<rustc_middle::ty::context::tls::with_related_context::{closure_env#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<rustc_middle::query::erase::Erased<[u8; 1]>, rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, rustc_middle::query::erase::Erased<[u8; 1]>>, rustc_middle::query::erase::Erased<[u8; 1]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:111:36
 147:     0x7fd410679ef9 - with_context_opt<rustc_middle::ty::context::tls::with_context::{closure_env#0}<rustc_middle::ty::context::tls::with_related_context::{closure_env#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<rustc_middle::query::erase::Erased<[u8; 1]>, rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, rustc_middle::query::erase::Erased<[u8; 1]>>, rustc_middle::query::erase::Erased<[u8; 1]>>, rustc_middle::query::erase::Erased<[u8; 1]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:100:18
 148:     0x7fd410679ef9 - with_context<rustc_middle::ty::context::tls::with_related_context::{closure_env#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<rustc_middle::query::erase::Erased<[u8; 1]>, rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, rustc_middle::query::erase::Erased<[u8; 1]>>, rustc_middle::query::erase::Erased<[u8; 1]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:111:5
 149:     0x7fd410679ef9 - with_related_context<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<rustc_middle::query::erase::Erased<[u8; 1]>, rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, rustc_middle::query::erase::Erased<[u8; 1]>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:124:5
 150:     0x7fd410679ef9 - start_query<rustc_middle::query::erase::Erased<[u8; 1]>, rustc_query_system::query::plumbing::execute_job_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/plumbing.rs:134:9
 151:     0x7fd410679ef9 - execute_job_non_incr<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:480:18
 152:     0x7fd410679ef9 - execute_job<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:413:9
 153:     0x7fd410679ef9 - try_execute_query<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:358:13
 154:     0x7fd4108342c2 - {closure#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:810:32
 155:     0x7fd4108342c2 - maybe_grow<rustc_middle::query::erase::Erased<[u8; 1]>, rustc_query_system::query::plumbing::get_query_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                               at /home/matthias/.cargo/registry/src/index.crates.io-6f17d22bba15001f/stacker-0.1.15/src/lib.rs:55:9
 156:     0x7fd4108342c2 - ensure_sufficient_stack<rustc_middle::query::erase::Erased<[u8; 1]>, rustc_query_system::query::plumbing::get_query_non_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/stack.rs:17:5
 157:     0x7fd4108342c2 - get_query_non_incr<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/query/plumbing.rs:810:5
 158:     0x7fd4108342c2 - __rust_end_short_backtrace
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_impl/src/plumbing.rs:554:26
 159:     0x7fd40ec9a1a0 - query_get_at<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/query/plumbing.rs:155:17
 160:     0x7fd40ec9a1a0 - analysis
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/query/mod.rs:2179:1
 161:     0x7fd40ec9a1a0 - analysis
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/query/plumbing.rs:376:35
 162:     0x7fd40ec9a1a0 - {closure#4}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver_impl/src/lib.rs:412:52
 163:     0x7fd40ec9a1a0 - {closure#0}<rustc_driver_impl::run_compiler::{closure#1}::{closure#2}::{closure_env#4}, core::result::Result<(), rustc_span::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context.rs:571:37
 164:     0x7fd40ec9a1a0 - {closure#0}<rustc_middle::ty::context::{impl#9}::enter::{closure_env#0}<rustc_driver_impl::run_compiler::{closure#1}::{closure#2}::{closure_env#4}, core::result::Result<(), rustc_span::ErrorGuaranteed>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:82:9
 165:     0x7fd40ec9a1a0 - try_with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_middle::ty::context::{impl#9}::enter::{closure_env#0}<rustc_driver_impl::run_compiler::{closure#1}::{closure#2}::{closure_env#4}, core::result::Result<(), rustc_span::ErrorGuaranteed>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/local.rs:270:16
 166:     0x7fd40ec9a1a0 - with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_middle::ty::context::{impl#9}::enter::{closure_env#0}<rustc_driver_impl::run_compiler::{closure#1}::{closure#2}::{closure_env#4}, core::result::Result<(), rustc_span::ErrorGuaranteed>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/local.rs:246:9
 167:     0x7fd40ec9a1a0 - enter_context<rustc_middle::ty::context::{impl#9}::enter::{closure_env#0}<rustc_driver_impl::run_compiler::{closure#1}::{closure#2}::{closure_env#4}, core::result::Result<(), rustc_span::ErrorGuaranteed>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context/tls.rs:79:9
 168:     0x7fd40ec9a1a0 - enter<rustc_driver_impl::run_compiler::{closure#1}::{closure#2}::{closure_env#4}, core::result::Result<(), rustc_span::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context.rs:571:9
 169:     0x7fd40ece58aa - {closure#2}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver_impl/src/lib.rs:412:13
 170:     0x7fd40ece58aa - enter<rustc_driver_impl::run_compiler::{closure#1}::{closure_env#2}, core::result::Result<core::option::Option<rustc_interface::queries::Linker>, rustc_span::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:389:19
 171:     0x7fd40ec984b3 - {closure#1}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver_impl/src/lib.rs:353:22
 172:     0x7fd40ec984b3 - {closure#0}<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure_env#1}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/interface.rs:332:21
 173:     0x7fd40ec984b3 - set_source_map<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_interface::interface::run_compiler::{closure#0}::{closure_env#0}<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure_env#1}>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_span/src/lib.rs:1034:5
 174:     0x7fd40ec86024 - {closure#0}<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure_env#1}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/interface.rs:326:13
 175:     0x7fd40ec86024 - set<rustc_span::SessionGlobals, rustc_interface::interface::run_compiler::{closure_env#0}<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure_env#1}>, core::result::Result<(), rustc_span::ErrorGuaranteed>>
                               at /home/matthias/.cargo/registry/src/index.crates.io-6f17d22bba15001f/scoped-tls-1.0.0/src/lib.rs:137:9
 176:     0x7fd40eca031c - create_session_globals_then<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_interface::interface::run_compiler::{closure_env#0}<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure_env#1}>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_span/src/lib.rs:120:5
 177:     0x7fd40eca031c - {closure#0}<rustc_interface::interface::run_compiler::{closure_env#0}<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure_env#1}>, core::result::Result<(), rustc_span::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/util.rs:155:38
 178:     0x7fd40eca031c - __rust_begin_short_backtrace<rustc_interface::util::run_in_thread_pool_with_globals::{closure#0}::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#0}<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure_env#1}>, core::result::Result<(), rustc_span::ErrorGuaranteed>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:135:18
 179:     0x7fd40ec8cd55 - {closure#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure#0}::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#0}<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure_env#1}>, core::result::Result<(), rustc_span::ErrorGuaranteed>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/mod.rs:529:17
 180:     0x7fd40ec8cd55 - call_once<core::result::Result<(), rustc_span::ErrorGuaranteed>, std::thread::{impl#0}::spawn_unchecked_::{closure#1}::{closure_env#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure#0}::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#0}<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure_env#1}>, core::result::Result<(), rustc_span::ErrorGuaranteed>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panic/unwind_safe.rs:271:9
 181:     0x7fd40ec8cd55 - do_call<core::panic::unwind_safe::AssertUnwindSafe<std::thread::{impl#0}::spawn_unchecked_::{closure#1}::{closure_env#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure#0}::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#0}<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure_env#1}>, core::result::Result<(), rustc_span::ErrorGuaranteed>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:500:40
 182:     0x7fd40ec8cd55 - try<core::result::Result<(), rustc_span::ErrorGuaranteed>, core::panic::unwind_safe::AssertUnwindSafe<std::thread::{impl#0}::spawn_unchecked_::{closure#1}::{closure_env#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure#0}::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#0}<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure_env#1}>, core::result::Result<(), rustc_span::ErrorGuaranteed>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:464:19
 183:     0x7fd40ec8cd55 - catch_unwind<core::panic::unwind_safe::AssertUnwindSafe<std::thread::{impl#0}::spawn_unchecked_::{closure#1}::{closure_env#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure#0}::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#0}<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure_env#1}>, core::result::Result<(), rustc_span::ErrorGuaranteed>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panic.rs:142:14
 184:     0x7fd40ec8cd55 - {closure#1}<rustc_interface::util::run_in_thread_pool_with_globals::{closure#0}::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#0}<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure_env#1}>, core::result::Result<(), rustc_span::ErrorGuaranteed>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/mod.rs:528:30
 185:     0x7fd40ec8cd55 - call_once<std::thread::{impl#0}::spawn_unchecked_::{closure_env#1}<rustc_interface::util::run_in_thread_pool_with_globals::{closure#0}::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#0}<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure_env#1}>, core::result::Result<(), rustc_span::ErrorGuaranteed>>, core::result::Result<(), rustc_span::ErrorGuaranteed>>, ()>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/ops/function.rs:250:5
 186:     0x7fd40d29ceda - call_once<(), dyn core::ops::function::FnOnce<(), Output=()>, alloc::alloc::Global>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:1985:9
 187:     0x7fd40d29ceda - call_once<(), alloc::boxed::Box<dyn core::ops::function::FnOnce<(), Output=()>, alloc::alloc::Global>, alloc::alloc::Global>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:1985:9
 188:     0x7fd40d2a6d25 - thread_start
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys/unix/thread.rs:108:17
 189:     0x7fd40d06a44b - <unknown>
 190:     0x7fd40d0ede40 - <unknown>
 191:                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 1.72.0-dev running on x86_64-unknown-linux-gnu

note: compiler flags: -Z dump-mir=all -Z dump-mir-dir=dir

query stack during panic:
#0 [mir_borrowck] borrow-checking `main`
#1 [analysis] running analysis passes on this crate
end of query stack
warning: 1 warning emitted

[matthiaskrgr]

Also crashes if I #![deny(indirect_structural_match)] :/

[spastorino]

This issue is similar to the one address in #118118, but my PR doesn't fix this one.

[matthiaskrgr]

no longer requires debug assertions 🎉

[matthiaskrgr]

tests/ui/rfcs/rfc-1445-restrict-constants-in-patterns/cant-hide-behind-doubly-indirect-param.rs

// This is part of a set of tests exploring the different ways a
// structural-match ADT might try to hold a
// non-structural-match in hidden manner that lets matches
// through that we had intended to reject.
//
// See discussion on rust-lang/rust#62307 and rust-lang/rust#62339
#![warn(indirect_structural_match)]
//@ run-pass

struct NoDerive(#[allow(dead_code)] i32);

// This impl makes NoDerive irreflexive.
impl PartialEq for NoDerive { fn eq(&self, _: &Self) -> bool { false } }

impl Eq for NoDerive { }

#[derive(PartialEq, Eq)]
struct WrapParam<'a, T>(&'a &'a T);

const WRAP_DOUBLY_INDIRECT_PARAM: & &WrapParam<NoDerive> = & &WrapParam(& & NoDerive(0));

fn main() {
    match WRAP_DOUBLY_INDIRECT_PARAM {
        WRAP_DOUBLY_INDIRECT_PARAM => { panic!("WRAP_DOUBLY_INDIRECT_PARAM matched itself"); }
        //~^ WARN must be annotated with `#[derive(PartialEq)]`
        //~| WARN this was previously accepted
        _ => { println!("WRAP_DOUBLY_INDIRECT_PARAM correctly did not match itself"); }
    }
}

rustc -Zdump-mir=all -Zdump-mir-dir=/tmp/ -Zincremental-verify-ich=yes file.rs
=>

warning: lint `unused_tuple_struct_fields` has been renamed to `dead_code`
  --> /tmp/crash.rs:10:25
   |
10 | struct NoDerive(#[allow(unused_tuple_struct_fields)] i32);
   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dead_code`
   |
   = note: `#[warn(renamed_and_removed_lints)]` on by default

warning: to use a constant of type `NoDerive` in a pattern, `NoDerive` must be annotated with `#[derive(PartialEq)]`
  --> /tmp/crash.rs:24:9
   |
24 | ...   WRAP_DOUBLY_INDIRECT_INLINE => { panic!("WRAP_DOUBLY_INDIRECT_INLINE matche...
   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = 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 #120362 <https://github.com/rust-lang/rust/issues/120362>
   = note: the traits must be derived, manual `impl`s are not sufficient
   = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralPartialEq.html for details
note: the lint level is defined here
  --> /tmp/crash.rs:7:9
   |
7  | #![warn(indirect_structural_match)]
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^

thread 'rustc' panicked at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/compiler/rustc_type_ir/src/region_kind.rs:283:17:
region variables should not be hashed: '?17
stack backtrace:
   0:     0x7f5860ca5c22 - std::backtrace_rs::backtrace::libunwind::trace::hfaaeee8ba270e11c
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
   1:     0x7f5860ca5c22 - std::backtrace_rs::backtrace::trace_unsynchronized::h6fb1c4d325d0d969
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f5860ca5c22 - std::sys_common::backtrace::_print_fmt::hd36d192d75c5bc13
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/std/src/sys_common/backtrace.rs:68:5
   3:     0x7f5860ca5c22 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hebc622152f918065
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7f5860cf6eac - core::fmt::rt::Argument::fmt::h42d7ab9e6b9d76d9
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/core/src/fmt/rt.rs:142:9
   5:     0x7f5860cf6eac - core::fmt::write::hceb334e2bb0855cb
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/core/src/fmt/mod.rs:1153:17
   6:     0x7f5860c9aa1f - std::io::Write::write_fmt::h21e1401d0661ae6d
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/std/src/io/mod.rs:1843:15
   7:     0x7f5860ca59f4 - std::sys_common::backtrace::_print::hd5d84a1029af69b4
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x7f5860ca59f4 - std::sys_common::backtrace::print::h6fd3aca52697573b
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x7f5860ca86fb - std::panicking::default_hook::{{closure}}::h4a9c0b0282b315bd
  10:     0x7f5860ca8453 - std::panicking::default_hook::h64aacf0d5c35b498
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/std/src/panicking.rs:292:9
  11:     0x7f585d8f82df - std[643654c1cf6ed541]::panicking::update_hook::<alloc[2118d7c564138cf7]::boxed::Box<rustc_driver_impl[5dd99c5338b3138f]::install_ice_hook::{closure#0}>>::{closure#0}
  12:     0x7f5860ca8e60 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::haf92efa441d110c6
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/alloc/src/boxed.rs:2034:9
  13:     0x7f5860ca8e60 - std::panicking::rust_panic_with_hook::h572774bd80531e18
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/std/src/panicking.rs:783:13
  14:     0x7f5860ca8ba2 - std::panicking::begin_panic_handler::{{closure}}::he9b751db0dede176
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/std/src/panicking.rs:657:13
  15:     0x7f5860ca60f6 - std::sys_common::backtrace::__rust_end_short_backtrace::h181bd77376b4f0f9
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/std/src/sys_common/backtrace.rs:171:18
  16:     0x7f5860ca88d4 - rust_begin_unwind
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/std/src/panicking.rs:645:5
  17:     0x7f5860cf33c5 - core::panicking::panic_fmt::ha1f618a40e3acdf1
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/core/src/panicking.rs:72:14
  18:     0x7f585ed4d43b - <rustc_middle[86b082b6ae20a938]::ty::generic_args::GenericArg as rustc_data_structures[d6b8812cf1da7772]::stable_hasher::HashStable<rustc_query_system[e51c9dbcb47ac10a]::ich::hcx::StableHashingContext>>::hash_stable
  19:     0x7f585ec50836 - <rustc_type_ir[37f9c129366c5d39]::ty_info::WithCachedTypeInfo<rustc_type_ir[37f9c129366c5d39]::ty_kind::TyKind<rustc_middle[86b082b6ae20a938]::ty::context::TyCtxt>> as rustc_data_structures[d6b8812cf1da7772]::stable_hasher::HashStable<rustc_query_system[e51c9dbcb47ac10a]::ich::hcx::StableHashingContext>>::hash_stable
  20:     0x7f585f644dcc - <rustc_type_ir[37f9c129366c5d39]::ty_info::WithCachedTypeInfo<rustc_middle[86b082b6ae20a938]::ty::consts::ConstData> as rustc_data_structures[d6b8812cf1da7772]::stable_hasher::HashStable<rustc_query_system[e51c9dbcb47ac10a]::ich::hcx::StableHashingContext>>::hash_stable
  21:     0x7f585e11d39b - rustc_query_impl[72e0720568441596]::plumbing::query_key_hash_verify::<rustc_query_impl[72e0720568441596]::DynamicConfig<rustc_query_system[e51c9dbcb47ac10a]::query::caches::DefaultCache<rustc_middle[86b082b6ae20a938]::ty::consts::Const, rustc_middle[86b082b6ae20a938]::query::erase::Erased<[u8; 24usize]>>, false, false, false>>::{closure#0}
  22:     0x7f585fa6d239 - <rustc_query_system[e51c9dbcb47ac10a]::query::caches::DefaultCache<rustc_middle[86b082b6ae20a938]::ty::consts::Const, rustc_middle[86b082b6ae20a938]::query::erase::Erased<[u8; 24usize]>> as rustc_query_system[e51c9dbcb47ac10a]::query::caches::QueryCache>::iter
  23:     0x7f585fa6d0a5 - rustc_query_impl[72e0720568441596]::query_impl::destructure_const::query_key_hash_verify
  24:     0x7f585f6b8be9 - rustc_interface[5852ce9831de6ee9]::interface::run_compiler::<core[7caf98a7402569f1]::result::Result<(), rustc_span[3cee0bc3124cbc21]::ErrorGuaranteed>, rustc_driver_impl[5dd99c5338b3138f]::run_compiler::{closure#0}>::{closure#0}
  25:     0x7f585fc2fb05 - std[643654c1cf6ed541]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[5852ce9831de6ee9]::util::run_in_thread_with_globals<rustc_interface[5852ce9831de6ee9]::util::run_in_thread_pool_with_globals<rustc_interface[5852ce9831de6ee9]::interface::run_compiler<core[7caf98a7402569f1]::result::Result<(), rustc_span[3cee0bc3124cbc21]::ErrorGuaranteed>, rustc_driver_impl[5dd99c5338b3138f]::run_compiler::{closure#0}>::{closure#0}, core[7caf98a7402569f1]::result::Result<(), rustc_span[3cee0bc3124cbc21]::ErrorGuaranteed>>::{closure#0}, core[7caf98a7402569f1]::result::Result<(), rustc_span[3cee0bc3124cbc21]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[7caf98a7402569f1]::result::Result<(), rustc_span[3cee0bc3124cbc21]::ErrorGuaranteed>>
  26:     0x7f585fc2f932 - <<std[643654c1cf6ed541]::thread::Builder>::spawn_unchecked_<rustc_interface[5852ce9831de6ee9]::util::run_in_thread_with_globals<rustc_interface[5852ce9831de6ee9]::util::run_in_thread_pool_with_globals<rustc_interface[5852ce9831de6ee9]::interface::run_compiler<core[7caf98a7402569f1]::result::Result<(), rustc_span[3cee0bc3124cbc21]::ErrorGuaranteed>, rustc_driver_impl[5dd99c5338b3138f]::run_compiler::{closure#0}>::{closure#0}, core[7caf98a7402569f1]::result::Result<(), rustc_span[3cee0bc3124cbc21]::ErrorGuaranteed>>::{closure#0}, core[7caf98a7402569f1]::result::Result<(), rustc_span[3cee0bc3124cbc21]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[7caf98a7402569f1]::result::Result<(), rustc_span[3cee0bc3124cbc21]::ErrorGuaranteed>>::{closure#1} as core[7caf98a7402569f1]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  27:     0x7f5860cb2505 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h77b8b116ff3c4255
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/alloc/src/boxed.rs:2020:9
  28:     0x7f5860cb2505 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h994160effdff6027
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/alloc/src/boxed.rs:2020:9
  29:     0x7f5860cb2505 - std::sys::pal::unix::thread::Thread::new::thread_start::h336eeebfb56643a3
                               at /rustc/3cbb93223f33024db464a4df27a13c7cce870173/library/std/src/sys/pal/unix/thread.rs:108:17
  30:     0x7f585a8a955a - <unknown>
  31:     0x7f585a926a3c - <unknown>
  32:                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: please attach the file at `/tmp/rustc-ice-2024-03-13T18_33_18-279183.txt` to your bug report

note: compiler flags: -Z dump-mir=all -Z dump-mir-dir=/tmp/ -Z incremental-verify-ich=yes

query stack during panic:
end of query stack
warning: 2 warnings emitted

[matthiaskrgr]

Seems to be related to #122227 cc @Zoxc

[Zoxc]

That just adds additional verification to -Zincremental-verify-ich=yes so it's not the source of the error.