ICE "region scope ... not in scope to drop"
Closed this issue · 1 comments
jruderman commented
Found with a modified fuzz-rustc
Code
#![allow(dead_code)]
const N: usize = {
struct U;
! let y = 42;
3
};
struct S {
x: [(); N]
}
fn main() {}Error output
rsr.rs:5:7: error: expected expression, found `let` statement
rsr.rs:5:7: error: `let` expressions are not supported here
rsr.rs:5:7: error[E0658]: `let` expressions in this position are unstable
rsr.rs:5:11: error: internal compiler error: compiler/rustc_mir_build/src/build/scope.rs:935:9: region scope Remainder { block: 11, first_statement_index: 0} not in scope to drop _4
Backtrace
thread 'rustc' panicked at 'Box<dyn Any>', /rustc/7eef946fc0e0eff40e588eab77b09b287accbec3/compiler/rustc_errors/src/lib.rs:967:33
stack backtrace:
0: 0x10e4fa7a2 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hde9930b8710af522
1: 0x10e5525ea - core::fmt::write::hd25ec0bfc1849a2f
2: 0x10e4ec87c - std::io::Write::write_fmt::hca36d7396c5dc18b
3: 0x10e4fa56a - std::sys_common::backtrace::print::hc155979e9e33e658
4: 0x10e4fd946 - std::panicking::default_hook::{{closure}}::h03db778ae686f347
5: 0x10e4fd697 - std::panicking::default_hook::h0d9e8bcb55be071f
6: 0x1190577dd - rustc_driver[77a613ab63d15aac]::DEFAULT_HOOK::{closure#0}::{closure#0}
7: 0x10e4fe145 - std::panicking::rust_panic_with_hook::h758520931cfdfde5
8: 0x11c2c5667 - std[11391ffec397fd56]::panicking::begin_panic::<rustc_errors[ec87cacb996b1da1]::ExplicitBug>::{closure#0}
9: 0x11c2c0629 - std[11391ffec397fd56]::sys_common::backtrace::__rust_end_short_backtrace::<std[11391ffec397fd56]::panicking::begin_panic<rustc_errors[ec87cacb996b1da1]::ExplicitBug>::{closure#0}, !>
10: 0x11dda1999 - std[11391ffec397fd56]::panicking::begin_panic::<rustc_errors[ec87cacb996b1da1]::ExplicitBug>
11: 0x11c2dfa19 - std[11391ffec397fd56]::panic::panic_any::<rustc_errors[ec87cacb996b1da1]::ExplicitBug>
12: 0x11c2df2e8 - <rustc_errors[ec87cacb996b1da1]::HandlerInner>::span_bug::<rustc_span[48482e0f8f724117]::span_encoding::Span, &alloc[a05f3e7fdaf4d80f]::string::String>
13: 0x11c2df08e - <rustc_errors[ec87cacb996b1da1]::Handler>::span_bug::<rustc_span[48482e0f8f724117]::span_encoding::Span, &alloc[a05f3e7fdaf4d80f]::string::String>
14: 0x11c271261 - rustc_middle[b315a0ebd84f913d]::ty::context::tls::with_context_opt::<rustc_middle[b315a0ebd84f913d]::ty::context::tls::with_opt<rustc_middle[b315a0ebd84f913d]::util::bug::opt_span_bug_fmt<rustc_span[48482e0f8f724117]::span_encoding::Span>::{closure#0}, ()>::{closure#0}, ()>
15: 0x11c270f81 - rustc_middle[b315a0ebd84f913d]::util::bug::opt_span_bug_fmt::<rustc_span[48482e0f8f724117]::span_encoding::Span>
16: 0x11dda095f - rustc_middle[b315a0ebd84f913d]::util::bug::span_bug_fmt::<rustc_span[48482e0f8f724117]::span_encoding::Span>
17: 0x11c2603d0 - <rustc_mir_build[603c590c528b19b]::build::Builder>::schedule_drop
18: 0x11c25c768 - <rustc_mir_build[603c590c528b19b]::build::Builder>::bind_and_guard_matched_candidate
19: 0x11c254b8d - <rustc_mir_build[603c590c528b19b]::build::Builder>::bind_pattern
20: 0x11c25bd72 - <rustc_mir_build[603c590c528b19b]::build::Builder>::lower_let_expr
21: 0x11c264033 - <rustc_mir_build[603c590c528b19b]::build::Builder>::expr_into_dest
22: 0x11c262a6a - <rustc_mir_build[603c590c528b19b]::build::Builder>::as_temp_inner
23: 0x11c261d0a - <rustc_mir_build[603c590c528b19b]::build::Builder>::as_operand
24: 0x11c262096 - <rustc_mir_build[603c590c528b19b]::build::Builder>::as_operand
25: 0x11c24d08e - <rustc_mir_build[603c590c528b19b]::build::Builder>::as_rvalue
26: 0x11c262d0f - <rustc_mir_build[603c590c528b19b]::build::Builder>::expr_into_dest
27: 0x11c262a6a - <rustc_mir_build[603c590c528b19b]::build::Builder>::as_temp_inner
28: 0x11c251560 - <rustc_mir_build[603c590c528b19b]::build::Builder>::stmt_expr
29: 0x11c251764 - <rustc_mir_build[603c590c528b19b]::build::Builder>::stmt_expr
30: 0x11c246482 - <rustc_mir_build[603c590c528b19b]::build::Builder>::ast_block_stmts
31: 0x11c269786 - <rustc_mir_build[603c590c528b19b]::build::Builder>::in_scope::<<rustc_mir_build[603c590c528b19b]::build::Builder>::ast_block::{closure#2}::{closure#0}, ()>
32: 0x11c264c49 - <rustc_mir_build[603c590c528b19b]::build::Builder>::expr_into_dest
33: 0x11c26a170 - <rustc_mir_build[603c590c528b19b]::build::Builder>::in_scope::<<rustc_mir_build[603c590c528b19b]::build::Builder>::expr_into_dest::{closure#0}::{closure#0}, ()>
34: 0x11c266d6d - <rustc_mir_build[603c590c528b19b]::build::Builder>::expr_into_dest::{closure#0}
35: 0x11c264536 - <rustc_mir_build[603c590c528b19b]::build::Builder>::expr_into_dest
36: 0x11c26a170 - <rustc_mir_build[603c590c528b19b]::build::Builder>::in_scope::<<rustc_mir_build[603c590c528b19b]::build::Builder>::expr_into_dest::{closure#0}::{closure#0}, ()>
37: 0x11c266d6d - <rustc_mir_build[603c590c528b19b]::build::Builder>::expr_into_dest::{closure#0}
38: 0x11c264536 - <rustc_mir_build[603c590c528b19b]::build::Builder>::expr_into_dest
39: 0x11c242648 - rustc_mir_build[603c590c528b19b]::build::mir_build
40: 0x11c23fcb2 - rustc_mir_build[603c590c528b19b]::build::mir_built
41: 0x11c896eba - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<rustc_middle[b315a0ebd84f913d]::ty::WithOptConstParam<rustc_span[48482e0f8f724117]::def_id::LocalDefId>, &rustc_data_structures[d9a04b93d3448b55]::steal::Steal<rustc_middle[b315a0ebd84f913d]::mir::Body>>>
42: 0x11c9c2eb5 - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::mir_built, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
43: 0x11ca68c97 - <rustc_query_impl[44c1f9c305efea75]::Queries as rustc_middle[b315a0ebd84f913d]::ty::query::QueryEngine>::mir_built
44: 0x11bdf22bc - rustc_mir_transform[908f959bb72ad5af]::check_unsafety::unsafety_check_result
45: 0x11bdee44b - <rustc_mir_transform[908f959bb72ad5af]::check_unsafety::provide::{closure#0} as core[cfd2f0869b685cd6]::ops::function::FnOnce<(rustc_middle[b315a0ebd84f913d]::ty::context::TyCtxt, rustc_span[48482e0f8f724117]::def_id::LocalDefId)>>::call_once
46: 0x11c8c79e9 - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<rustc_span[48482e0f8f724117]::def_id::LocalDefId, &rustc_middle[b315a0ebd84f913d]::mir::query::UnsafetyCheckResult>>
47: 0x11c9b996c - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::unsafety_check_result, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
48: 0x11bd951a1 - rustc_mir_transform[908f959bb72ad5af]::mir_const
49: 0x11c896eba - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<rustc_middle[b315a0ebd84f913d]::ty::WithOptConstParam<rustc_span[48482e0f8f724117]::def_id::LocalDefId>, &rustc_data_structures[d9a04b93d3448b55]::steal::Steal<rustc_middle[b315a0ebd84f913d]::mir::Body>>>
50: 0x11c9c2fe2 - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::mir_const, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
51: 0x11ca68cc7 - <rustc_query_impl[44c1f9c305efea75]::Queries as rustc_middle[b315a0ebd84f913d]::ty::query::QueryEngine>::mir_const
52: 0x11bd94143 - rustc_mir_transform[908f959bb72ad5af]::mir_const_qualif
53: 0x11bd7f144 - <rustc_mir_transform[908f959bb72ad5af]::provide::{closure#0} as core[cfd2f0869b685cd6]::ops::function::FnOnce<(rustc_middle[b315a0ebd84f913d]::ty::context::TyCtxt, rustc_span[48482e0f8f724117]::def_id::DefId)>>::call_once
54: 0x11c8f1e2c - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<rustc_span[48482e0f8f724117]::def_id::DefId, rustc_middle[b315a0ebd84f913d]::mir::query::ConstQualifs>>
55: 0x11c9b35e6 - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::mir_const_qualif, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
56: 0x11bd9593e - rustc_mir_transform[908f959bb72ad5af]::mir_promoted
57: 0x11c8980e0 - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<rustc_middle[b315a0ebd84f913d]::ty::WithOptConstParam<rustc_span[48482e0f8f724117]::def_id::LocalDefId>, (&rustc_data_structures[d9a04b93d3448b55]::steal::Steal<rustc_middle[b315a0ebd84f913d]::mir::Body>, &rustc_data_structures[d9a04b93d3448b55]::steal::Steal<rustc_index[975aea96e92c3aa6]::vec::IndexVec<rustc_middle[b315a0ebd84f913d]::mir::Promoted, rustc_middle[b315a0ebd84f913d]::mir::Body>>)>>
58: 0x11c9ae8c8 - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::mir_promoted, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
59: 0x11ca68e87 - <rustc_query_impl[44c1f9c305efea75]::Queries as rustc_middle[b315a0ebd84f913d]::ty::query::QueryEngine>::mir_promoted
60: 0x11c43f996 - rustc_borrowck[92a4f20c78c2d7a9]::mir_borrowck
61: 0x11c420685 - <rustc_borrowck[92a4f20c78c2d7a9]::provide::{closure#0} as core[cfd2f0869b685cd6]::ops::function::FnOnce<(rustc_middle[b315a0ebd84f913d]::ty::context::TyCtxt, rustc_span[48482e0f8f724117]::def_id::LocalDefId)>>::call_once
62: 0x11c8c67c9 - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<rustc_span[48482e0f8f724117]::def_id::LocalDefId, &rustc_middle[b315a0ebd84f913d]::mir::query::BorrowCheckResult>>
63: 0x11c9ae633 - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::mir_borrowck, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
64: 0x11d8d3a62 - <rustc_middle[b315a0ebd84f913d]::ty::context::TyCtxt>::mir_borrowck_opt_const_arg
65: 0x11bd96cac - rustc_mir_transform[908f959bb72ad5af]::mir_drops_elaborated_and_const_checked
66: 0x11c896eba - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<rustc_middle[b315a0ebd84f913d]::ty::WithOptConstParam<rustc_span[48482e0f8f724117]::def_id::LocalDefId>, &rustc_data_structures[d9a04b93d3448b55]::steal::Steal<rustc_middle[b315a0ebd84f913d]::mir::Body>>>
67: 0x11c9c0f82 - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::mir_drops_elaborated_and_const_checked, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
68: 0x11ca68e07 - <rustc_query_impl[44c1f9c305efea75]::Queries as rustc_middle[b315a0ebd84f913d]::ty::query::QueryEngine>::mir_drops_elaborated_and_const_checked
69: 0x11bd96910 - rustc_mir_transform[908f959bb72ad5af]::inner_mir_for_ctfe
70: 0x11bd96218 - rustc_mir_transform[908f959bb72ad5af]::mir_for_ctfe
71: 0x11c8fa515 - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<rustc_span[48482e0f8f724117]::def_id::DefId, &rustc_middle[b315a0ebd84f913d]::mir::Body>>
72: 0x11c9ae785 - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::mir_for_ctfe, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
73: 0x11c72ec91 - <rustc_const_eval[d893f35e951f968e]::const_eval::machine::CompileTimeInterpreter as rustc_const_eval[d893f35e951f968e]::interpret::machine::Machine>::load_mir
74: 0x11c6830fc - <rustc_const_eval[d893f35e951f968e]::interpret::eval_context::InterpCx<rustc_const_eval[d893f35e951f968e]::const_eval::machine::CompileTimeInterpreter>>::load_mir
75: 0x11c6db3b3 - rustc_const_eval[d893f35e951f968e]::const_eval::eval_queries::eval_to_allocation_raw_provider
76: 0x11c88beaf - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<rustc_middle[b315a0ebd84f913d]::ty::ParamEnvAnd<rustc_middle[b315a0ebd84f913d]::mir::interpret::GlobalId>, core[cfd2f0869b685cd6]::result::Result<rustc_middle[b315a0ebd84f913d]::mir::interpret::value::ConstAlloc, rustc_middle[b315a0ebd84f913d]::mir::interpret::error::ErrorHandled>>>
77: 0x11c9ba20a - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::eval_to_allocation_raw, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
78: 0x11ca69a71 - <rustc_query_impl[44c1f9c305efea75]::Queries as rustc_middle[b315a0ebd84f913d]::ty::query::QueryEngine>::eval_to_allocation_raw
79: 0x11c68488d - <rustc_const_eval[d893f35e951f968e]::interpret::eval_context::InterpCx<rustc_const_eval[d893f35e951f968e]::const_eval::machine::CompileTimeInterpreter>>::eval_to_allocation
80: 0x11c691faa - <rustc_const_eval[d893f35e951f968e]::interpret::eval_context::InterpCx<rustc_const_eval[d893f35e951f968e]::const_eval::machine::CompileTimeInterpreter>>::const_to_op
81: 0x11c6a433f - <rustc_const_eval[d893f35e951f968e]::interpret::eval_context::InterpCx<rustc_const_eval[d893f35e951f968e]::const_eval::machine::CompileTimeInterpreter>>::push_stack_frame
82: 0x11c6db973 - rustc_const_eval[d893f35e951f968e]::const_eval::eval_queries::eval_to_allocation_raw_provider
83: 0x11c88beaf - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<rustc_middle[b315a0ebd84f913d]::ty::ParamEnvAnd<rustc_middle[b315a0ebd84f913d]::mir::interpret::GlobalId>, core[cfd2f0869b685cd6]::result::Result<rustc_middle[b315a0ebd84f913d]::mir::interpret::value::ConstAlloc, rustc_middle[b315a0ebd84f913d]::mir::interpret::error::ErrorHandled>>>
84: 0x11c9ba20a - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::eval_to_allocation_raw, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
85: 0x11ca69a71 - <rustc_query_impl[44c1f9c305efea75]::Queries as rustc_middle[b315a0ebd84f913d]::ty::query::QueryEngine>::eval_to_allocation_raw
86: 0x11c6db05a - rustc_const_eval[d893f35e951f968e]::const_eval::eval_queries::eval_to_allocation_raw_provider
87: 0x11c88beaf - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<rustc_middle[b315a0ebd84f913d]::ty::ParamEnvAnd<rustc_middle[b315a0ebd84f913d]::mir::interpret::GlobalId>, core[cfd2f0869b685cd6]::result::Result<rustc_middle[b315a0ebd84f913d]::mir::interpret::value::ConstAlloc, rustc_middle[b315a0ebd84f913d]::mir::interpret::error::ErrorHandled>>>
88: 0x11c9ba20a - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::eval_to_allocation_raw, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
89: 0x11ca69a71 - <rustc_query_impl[44c1f9c305efea75]::Queries as rustc_middle[b315a0ebd84f913d]::ty::query::QueryEngine>::eval_to_allocation_raw
90: 0x11c6e379a - rustc_const_eval[d893f35e951f968e]::const_eval::eval_to_valtree
91: 0x11c6b86c3 - <rustc_const_eval[d893f35e951f968e]::provide::{closure#0} as core[cfd2f0869b685cd6]::ops::function::FnOnce<(rustc_middle[b315a0ebd84f913d]::ty::context::TyCtxt, rustc_middle[b315a0ebd84f913d]::ty::ParamEnvAnd<rustc_middle[b315a0ebd84f913d]::mir::interpret::GlobalId>)>>::call_once
92: 0x11c88a73b - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<rustc_middle[b315a0ebd84f913d]::ty::ParamEnvAnd<rustc_middle[b315a0ebd84f913d]::mir::interpret::GlobalId>, core[cfd2f0869b685cd6]::result::Result<core[cfd2f0869b685cd6]::option::Option<rustc_middle[b315a0ebd84f913d]::ty::consts::valtree::ValTree>, rustc_middle[b315a0ebd84f913d]::mir::interpret::error::ErrorHandled>>>
93: 0x11c9b16bd - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::eval_to_valtree, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
94: 0x11ca69b71 - <rustc_query_impl[44c1f9c305efea75]::Queries as rustc_middle[b315a0ebd84f913d]::ty::query::QueryEngine>::eval_to_valtree
95: 0x11d8ea447 - <rustc_middle[b315a0ebd84f913d]::ty::context::TyCtxt>::const_eval_global_id_for_typeck
96: 0x11d8e9461 - <rustc_middle[b315a0ebd84f913d]::ty::context::TyCtxt>::const_eval_resolve_for_typeck
97: 0x11d55c655 - <rustc_middle[b315a0ebd84f913d]::ty::consts::Const>::eval
98: 0x11d568d85 - <rustc_trait_selection[e9a02f98259a9cc7]::traits::project::AssocTypeNormalizer as rustc_middle[b315a0ebd84f913d]::ty::fold::TypeFolder>::fold_const
99: 0x11d669469 - <rustc_middle[b315a0ebd84f913d]::ty::Ty as rustc_middle[b315a0ebd84f913d]::ty::fold::TypeSuperFoldable>::super_fold_with::<rustc_trait_selection[e9a02f98259a9cc7]::traits::project::AssocTypeNormalizer>
100: 0x11bbbfa4e - <rustc_trait_selection[e9a02f98259a9cc7]::traits::project::AssocTypeNormalizer>::fold::<rustc_middle[b315a0ebd84f913d]::ty::Ty>
101: 0x11bbc686c - rustc_trait_selection[e9a02f98259a9cc7]::traits::project::normalize::<rustc_middle[b315a0ebd84f913d]::ty::Ty>
102: 0x11bb5a3e3 - <rustc_trait_selection[e9a02f98259a9cc7]::traits::engine::ObligationCtxt>::normalize::<rustc_middle[b315a0ebd84f913d]::ty::Ty>
103: 0x11bbe0410 - rustc_hir_analysis[ad14f4770cb1b48d]::check::wfcheck::check_type_defn
104: 0x11bbd8628 - rustc_hir_analysis[ad14f4770cb1b48d]::check::wfcheck::check_well_formed
105: 0x11c8b6555 - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<rustc_hir[1f62500b68f0e116]::hir_id::OwnerId, ()>>
106: 0x11c9b4485 - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::check_well_formed, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
107: 0x11bade11b - rustc_data_structures[d9a04b93d3448b55]::sync::par_for_each_in::<&[rustc_hir[1f62500b68f0e116]::hir::ItemId], <rustc_middle[b315a0ebd84f913d]::hir::ModuleItems>::par_items<rustc_hir_analysis[ad14f4770cb1b48d]::check::wfcheck::check_mod_type_wf::{closure#0}>::{closure#0}>
108: 0x11bbe5441 - rustc_hir_analysis[ad14f4770cb1b48d]::check::wfcheck::check_mod_type_wf
109: 0x11c8c9e45 - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<rustc_span[48482e0f8f724117]::def_id::LocalDefId, ()>>
110: 0x11c9b4365 - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::check_mod_type_wf, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
111: 0x11bade21b - rustc_data_structures[d9a04b93d3448b55]::sync::par_for_each_in::<&[rustc_hir[1f62500b68f0e116]::hir_id::OwnerId], <rustc_middle[b315a0ebd84f913d]::hir::map::Map>::par_for_each_module<rustc_hir_analysis[ad14f4770cb1b48d]::check_crate::{closure#5}::{closure#0}::{closure#0}>::{closure#0}>
112: 0x11bb472d0 - <rustc_session[ae5bb785c2cd4c22]::session::Session>::track_errors::<rustc_hir_analysis[ad14f4770cb1b48d]::check_crate::{closure#5}, ()>
113: 0x11baf0b92 - rustc_hir_analysis[ad14f4770cb1b48d]::check_crate
114: 0x11919e84a - rustc_interface[a0d981abc9377f30]::passes::analysis
115: 0x11c947b5c - rustc_query_system[69ea88315c8057f7]::query::plumbing::try_execute_query::<rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt, rustc_query_system[69ea88315c8057f7]::query::caches::DefaultCache<(), core[cfd2f0869b685cd6]::result::Result<(), rustc_errors[ec87cacb996b1da1]::ErrorGuaranteed>>>
116: 0x11c9c1f19 - rustc_query_system[69ea88315c8057f7]::query::plumbing::get_query::<rustc_query_impl[44c1f9c305efea75]::queries::analysis, rustc_query_impl[44c1f9c305efea75]::plumbing::QueryCtxt>
117: 0x1190737e6 - <rustc_interface[a0d981abc9377f30]::passes::QueryContext>::enter::<rustc_driver[77a613ab63d15aac]::run_compiler::{closure#1}::{closure#2}::{closure#3}, core[cfd2f0869b685cd6]::result::Result<(), rustc_errors[ec87cacb996b1da1]::ErrorGuaranteed>>
118: 0x1190b7f5d - rustc_span[48482e0f8f724117]::with_source_map::<core[cfd2f0869b685cd6]::result::Result<(), rustc_errors[ec87cacb996b1da1]::ErrorGuaranteed>, rustc_interface[a0d981abc9377f30]::interface::run_compiler<core[cfd2f0869b685cd6]::result::Result<(), rustc_errors[ec87cacb996b1da1]::ErrorGuaranteed>, rustc_driver[77a613ab63d15aac]::run_compiler::{closure#1}>::{closure#0}::{closure#1}>
119: 0x1190a7a7c - <scoped_tls[46b3c18c0a12f0bc]::ScopedKey<rustc_span[48482e0f8f724117]::SessionGlobals>>::set::<rustc_interface[a0d981abc9377f30]::interface::run_compiler<core[cfd2f0869b685cd6]::result::Result<(), rustc_errors[ec87cacb996b1da1]::ErrorGuaranteed>, rustc_driver[77a613ab63d15aac]::run_compiler::{closure#1}>::{closure#0}, core[cfd2f0869b685cd6]::result::Result<(), rustc_errors[ec87cacb996b1da1]::ErrorGuaranteed>>
120: 0x1190773ca - std[11391ffec397fd56]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[a0d981abc9377f30]::util::run_in_thread_pool_with_globals<rustc_interface[a0d981abc9377f30]::interface::run_compiler<core[cfd2f0869b685cd6]::result::Result<(), rustc_errors[ec87cacb996b1da1]::ErrorGuaranteed>, rustc_driver[77a613ab63d15aac]::run_compiler::{closure#1}>::{closure#0}, core[cfd2f0869b685cd6]::result::Result<(), rustc_errors[ec87cacb996b1da1]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[cfd2f0869b685cd6]::result::Result<(), rustc_errors[ec87cacb996b1da1]::ErrorGuaranteed>>
121: 0x11905d4cb - <<std[11391ffec397fd56]::thread::Builder>::spawn_unchecked_<rustc_interface[a0d981abc9377f30]::util::run_in_thread_pool_with_globals<rustc_interface[a0d981abc9377f30]::interface::run_compiler<core[cfd2f0869b685cd6]::result::Result<(), rustc_errors[ec87cacb996b1da1]::ErrorGuaranteed>, rustc_driver[77a613ab63d15aac]::run_compiler::{closure#1}>::{closure#0}, core[cfd2f0869b685cd6]::result::Result<(), rustc_errors[ec87cacb996b1da1]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[cfd2f0869b685cd6]::result::Result<(), rustc_errors[ec87cacb996b1da1]::ErrorGuaranteed>>::{closure#1} as core[cfd2f0869b685cd6]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
122: 0x10e5071f7 - std::sys::unix::thread::Thread::new::thread_start::ha121f0b94f5d418a
123: 0x7ff814d514e1 - __pthread_start
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 1.67.0-nightly (7eef946fc 2022-11-06) running on x86_64-apple-darwin
query stack during panic:
#0 [mir_built] building MIR for `N`
#1 [unsafety_check_result] unsafety-checking `N`
#2 [mir_const] preparing `N` for borrow checking
#3 [mir_const_qualif] const checking `N`
#4 [mir_promoted] processing MIR for `N`
#5 [mir_borrowck] borrow-checking `N`
#6 [mir_drops_elaborated_and_const_checked] elaborating drops for `N`
#7 [mir_for_ctfe] caching mir of `N` for CTFE
#8 [eval_to_allocation_raw] const-evaluating + checking `N`
#9 [eval_to_allocation_raw] const-evaluating + checking `S::x::{constant#0}`
#10 [eval_to_allocation_raw] const-evaluating + checking `S::x::{constant#0}`
#11 [eval_to_valtree] evaluating type-level constant
#12 [check_well_formed] checking that `S` is well-formed
#13 [check_mod_type_wf] checking that types are well-formed in top-level module
#14 [analysis] running analysis passes on this crate
end of query stack
Regression
Regression in nightly-2021-08-17, maybe from #80357
Version
rustc 1.67.0-nightly (7eef946fc 2022-11-06)
binary: rustc
commit-hash: 7eef946fc0e0eff40e588eab77b09b287accbec3
commit-date: 2022-11-06
host: x86_64-apple-darwin
release: 1.67.0-nightly
LLVM version: 15.0.4
Noratrieb commented
We should not be building MIR for code that is broken like this. No surprise that MIR building can't handle it, it shouldn't.