Closed
Description
Code
fn main() {
let inner;
let outer = || {
inner = || {};
inner();
};
outer();
}Meta
rustc --version --verbose:
rustc 1.52.0-nightly (a15f484b9 2021-02-22)
binary: rustc
commit-hash: a15f484b918a4533ad633ea903ccce82910af342
commit-date: 2021-02-22
host: x86_64-unknown-linux-gnu
release: 1.52.0-nightly
LLVM version: 11.0.1
Doesn't panic in Stable.
Error output
thread 'rustc' panicked at 'LocalTableInContext: key not found', compiler/rustc_mir/src/borrow_check/diagnostics/mutability_errors.rs:516:30
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
error: internal compiler error: unexpected panic
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 1.52.0-nightly (a15f484b9 2021-02-22) running on x86_64-unknown-linux-gnu
note: compiler flags: -C embed-bitcode=no -C debuginfo=2 -C incremental --crate-type bin
note: some of the compiler flags provided by cargo are hidden
query stack during panic:
#0 [mir_borrowck] borrow-checking `main::{closure#0}`
#1 [mir_borrowck] borrow-checking `main`
end of query stack
error: could not compile `rs-min`
To learn more, run the command again with --verbose.
Backtrace
Compiling rs-min v0.1.0 (/home/evan/Code/Repos/rs-min)
thread 'rustc' panicked at 'LocalTableInContext: key not found', compiler/rustc_mir/src/borrow_check/diagnostics/mutability_errors.rs:516:30
stack backtrace:
0: rust_begin_unwind
at /rustc/a15f484b918a4533ad633ea903ccce82910af342/library/std/src/panicking.rs:493:5
1: core::panicking::panic_fmt
at /rustc/a15f484b918a4533ad633ea903ccce82910af342/library/core/src/panicking.rs:92:14
2: core::option::expect_failed
at /rustc/a15f484b918a4533ad633ea903ccce82910af342/library/core/src/option.rs:1292:5
3: <rustc_middle::ty::context::LocalTableInContext<V> as core::ops::index::Index<rustc_hir::hir_id::HirId>>::index
4: rustc_mir::borrow_check::diagnostics::mutability_errors::<impl rustc_mir::borrow_check::MirBorrowckCtxt>::show_mutating_upvar
5: rustc_mir::borrow_check::diagnostics::mutability_errors::<impl rustc_mir::borrow_check::MirBorrowckCtxt>::report_mutability_error
6: rustc_mir::borrow_check::MirBorrowckCtxt::access_place
7: rustc_mir::borrow_check::MirBorrowckCtxt::mutate_place
8: <rustc_mir::borrow_check::MirBorrowckCtxt as rustc_mir::dataflow::framework::visitor::ResultsVisitor>::visit_statement_before_primary_effect
9: <rustc_mir::dataflow::framework::direction::Forward as rustc_mir::dataflow::framework::direction::Direction>::visit_results_in_block
10: rustc_mir::dataflow::framework::visitor::visit_results
11: rustc_mir::borrow_check::do_mir_borrowck
12: rustc_infer::infer::InferCtxtBuilder::enter
13: rustc_mir::borrow_check::mir_borrowck
14: core::ops::function::FnOnce::call_once
15: rustc_middle::dep_graph::<impl rustc_query_system::dep_graph::DepKind for rustc_middle::dep_graph::dep_node::DepKind>::with_deps
16: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl
17: rustc_data_structures::stack::ensure_sufficient_stack
18: rustc_query_system::query::plumbing::force_query_with_job
19: rustc_query_system::query::plumbing::get_query_impl
20: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::mir_borrowck
21: rustc_mir::borrow_check::type_check::TypeChecker::check_rvalue
22: rustc_mir::borrow_check::type_check::TypeChecker::typeck_mir
23: rustc_mir::borrow_check::type_check::type_check
24: rustc_mir::borrow_check::nll::compute_regions
25: rustc_mir::borrow_check::do_mir_borrowck
26: rustc_infer::infer::InferCtxtBuilder::enter
27: rustc_mir::borrow_check::mir_borrowck
28: core::ops::function::FnOnce::call_once
29: rustc_middle::dep_graph::<impl rustc_query_system::dep_graph::DepKind for rustc_middle::dep_graph::dep_node::DepKind>::with_deps
30: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl
31: rustc_data_structures::stack::ensure_sufficient_stack
32: rustc_query_system::query::plumbing::force_query_with_job
33: rustc_query_system::query::plumbing::get_query_impl
34: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::mir_borrowck
35: rustc_middle::ty::<impl rustc_middle::ty::context::TyCtxt>::par_body_owners
36: rustc_interface::passes::analysis
37: rustc_middle::dep_graph::<impl rustc_query_system::dep_graph::DepKind for rustc_middle::dep_graph::dep_node::DepKind>::with_deps
38: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl
39: rustc_data_structures::stack::ensure_sufficient_stack
40: rustc_query_system::query::plumbing::force_query_with_job
41: rustc_query_system::query::plumbing::get_query_impl
42: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::analysis
43: rustc_interface::passes::QueryContext::enter
44: rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter
45: rustc_span::with_source_map
46: rustc_interface::interface::create_compiler_and_run
47: scoped_tls::ScopedKey<T>::set
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
error: internal compiler error: unexpected panic
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 1.52.0-nightly (a15f484b9 2021-02-22) running on x86_64-unknown-linux-gnu
note: compiler flags: -C embed-bitcode=no -C debuginfo=2 -C incremental --crate-type bin
note: some of the compiler flags provided by cargo are hidden
query stack during panic:
#0 [mir_borrowck] borrow-checking `main::{closure#0}`
#1 [mir_borrowck] borrow-checking `main`
#2 [analysis] running analysis passes on this crate
end of query stack
error: could not compile `rs-min`
To learn more, run the command again with --verbose.
Maybe duplicate of #82438?