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constify const Fn*: Destruct#153874

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bend-n wants to merge 2 commits intorust-lang:mainfrom
bend-n:constify-const-fn-destruct
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constify const Fn*: Destruct#153874
bend-n wants to merge 2 commits intorust-lang:mainfrom
bend-n:constify-const-fn-destruct

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@bend-n bend-n commented Mar 14, 2026

makes closures const destruct where their upvars are. i think this makes sense
and is how this should be implemented.

r? @oli-obk

@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver) labels Mar 14, 2026
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@bend-n bend-n force-pushed the constify-const-fn-destruct branch from 1d08de5 to 92b334a Compare March 14, 2026 15:52
oli-obk
oli-obk reviewed Mar 14, 2026
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library/coretests/tests/array.rs Outdated
#[test]
fn extra_const_array_ops() {
let x: [u8; 4] =
const { std::array::from_fn(const |i| i + 4).map(const |x| x * 2).map(const |x| x as _) };
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@oli-obk oli-obk Mar 14, 2026 •
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Also add a test with upvars (both trivial ones and ones with const Drop impls

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And a UI test that fails if an upvar is not const Destruct

@bend-n bend-n force-pushed the constify-const-fn-destruct branch from 92b334a to 9a21f8d Compare March 14, 2026 16:25
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@bend-n bend-n force-pushed the constify-const-fn-destruct branch from 9a21f8d to cf2876e Compare March 14, 2026 17:59
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@bend-n bend-n force-pushed the constify-const-fn-destruct branch 2 times, most recently from d2537d2 to 20dfeff Compare March 14, 2026 19:00
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@bend-n bend-n force-pushed the constify-const-fn-destruct branch from 20dfeff to 29a13cc Compare March 14, 2026 21:10
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@bend-n bend-n force-pushed the constify-const-fn-destruct branch from 29a13cc to bc613f8 Compare March 14, 2026 21:17
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@bend-n bend-n force-pushed the constify-const-fn-destruct branch from bc613f8 to 5c1e5d5 Compare March 15, 2026 06:46
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rust-log-analyzer commented Mar 15, 2026

The job pr-check-2 failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot) 
   1: core::panicking::panic_fmt
   2: rustc_mir_transform::optimized_mir
      [... omitted 1 frame ...]
   3: <rustc_middle::ty::context::TyCtxt>::instance_mir
   4: rustc_data_structures::sync::parallel::par_for_each_in::<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], <rustc_middle::ty::context::TyCtxt>::par_hir_body_owners<rustc_interface::passes::analysis::{closure#1}::{closure#0}>::{closure#0}>
   5: <rustc_session::session::Session>::time::<(), rustc_interface::passes::analysis::{closure#1}>
   6: rustc_interface::passes::analysis
      [... omitted 1 frame ...]
   7: <std::thread::local::LocalKey<core::cell::Cell<*const ()>>>::with::<rustc_middle::ty::context::tls::enter_context<<rustc_middle::ty::context::GlobalCtxt>::enter<rustc_interface::passes::create_and_enter_global_ctxt<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}, core::option::Option<rustc_interface::queries::Linker>>::{closure#1}, core::option::Option<rustc_interface::queries::Linker>>::{closure#0}, core::option::Option<rustc_interface::queries::Linker>>
   8: <rustc_middle::ty::context::TyCtxt>::create_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_interface::passes::create_and_enter_global_ctxt<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}>
   9: rustc_interface::passes::create_and_enter_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>
  10: rustc_span::create_session_globals_then::<(), rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}::{closure#0}>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: the compiler unexpectedly panicked. This is a bug

note: using internal features is not supported and expected to cause internal compiler errors when used incorrectly

warning: the ICE couldn't be written to `/checkout/rustc-ice-2026-03-15T07_17_14-38546.txt`: Read-only file system (os error 30)

note: rustc 1.96.0-nightly (1991d77af 2026-03-15) running on x86_64-unknown-linux-gnu

note: compiler flags: -C opt-level=3 -C embed-bitcode=no -C codegen-units=1 -C embed-bitcode=yes -Z unstable-options -C force-frame-pointers=non-leaf -C debug-assertions=on -Z annotate-moves -Z unstable-options -Z macro-backtrace -C split-debuginfo=off -C prefer-dynamic -Z validate-mir -Z mir-opt-level=3 -Z inline-mir -Z inline-mir-preserve-debug -Z mir_strip_debuginfo=locals-in-tiny-functions -C link-args=-Wl,-z,origin -C link-args=-Wl,-rpath,$ORIGIN/../lib -Z crate-attr=doc(html_root_url="https://doc.rust-lang.org/nightly/") -Z binary-dep-depinfo -Z force-unstable-if-unmarked

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [optimized_mir] optimizing MIR for `array::extra_const_array_ops::{constant#0}::{closure#0}`
---
   1: core::panicking::panic_fmt
   2: rustc_mir_transform::optimized_mir
      [... omitted 1 frame ...]
   3: <rustc_middle::ty::context::TyCtxt>::instance_mir
   4: rustc_data_structures::sync::parallel::par_for_each_in::<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], <rustc_middle::ty::context::TyCtxt>::par_hir_body_owners<rustc_interface::passes::analysis::{closure#1}::{closure#0}>::{closure#0}>
   5: <rustc_session::session::Session>::time::<(), rustc_interface::passes::analysis::{closure#1}>
   6: rustc_interface::passes::analysis
      [... omitted 1 frame ...]
   7: <std::thread::local::LocalKey<core::cell::Cell<*const ()>>>::with::<rustc_middle::ty::context::tls::enter_context<<rustc_middle::ty::context::GlobalCtxt>::enter<rustc_interface::passes::create_and_enter_global_ctxt<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}, core::option::Option<rustc_interface::queries::Linker>>::{closure#1}, core::option::Option<rustc_interface::queries::Linker>>::{closure#0}, core::option::Option<rustc_interface::queries::Linker>>
   8: <rustc_middle::ty::context::TyCtxt>::create_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_interface::passes::create_and_enter_global_ctxt<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}>
   9: rustc_interface::passes::create_and_enter_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>
  10: rustc_span::create_session_globals_then::<(), rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}::{closure#0}>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: the compiler unexpectedly panicked. This is a bug

note: using internal features is not supported and expected to cause internal compiler errors when used incorrectly

warning: the ICE couldn't be written to `/checkout/rustc-ice-2026-03-15T07_17_14-38546.txt`: Read-only file system (os error 30)

note: rustc 1.96.0-nightly (1991d77af 2026-03-15) running on x86_64-unknown-linux-gnu

note: compiler flags: -C opt-level=3 -C embed-bitcode=no -C codegen-units=1 -C embed-bitcode=yes -Z unstable-options -C force-frame-pointers=non-leaf -C debug-assertions=on -Z annotate-moves -Z unstable-options -Z macro-backtrace -C split-debuginfo=off -C prefer-dynamic -Z validate-mir -Z mir-opt-level=3 -Z inline-mir -Z inline-mir-preserve-debug -Z mir_strip_debuginfo=locals-in-tiny-functions -C link-args=-Wl,-z,origin -C link-args=-Wl,-rpath,$ORIGIN/../lib -Z crate-attr=doc(html_root_url="https://doc.rust-lang.org/nightly/") -Z binary-dep-depinfo -Z force-unstable-if-unmarked

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [optimized_mir] optimizing MIR for `array::extra_const_array_ops::{constant#0}::{closure#1}`
---
   1: core::panicking::panic_fmt
   2: rustc_mir_transform::optimized_mir
      [... omitted 1 frame ...]
   3: <rustc_middle::ty::context::TyCtxt>::instance_mir
   4: rustc_data_structures::sync::parallel::par_for_each_in::<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], <rustc_middle::ty::context::TyCtxt>::par_hir_body_owners<rustc_interface::passes::analysis::{closure#1}::{closure#0}>::{closure#0}>
   5: <rustc_session::session::Session>::time::<(), rustc_interface::passes::analysis::{closure#1}>
   6: rustc_interface::passes::analysis
      [... omitted 1 frame ...]
   7: <std::thread::local::LocalKey<core::cell::Cell<*const ()>>>::with::<rustc_middle::ty::context::tls::enter_context<<rustc_middle::ty::context::GlobalCtxt>::enter<rustc_interface::passes::create_and_enter_global_ctxt<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}, core::option::Option<rustc_interface::queries::Linker>>::{closure#1}, core::option::Option<rustc_interface::queries::Linker>>::{closure#0}, core::option::Option<rustc_interface::queries::Linker>>
   8: <rustc_middle::ty::context::TyCtxt>::create_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_interface::passes::create_and_enter_global_ctxt<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}>
   9: rustc_interface::passes::create_and_enter_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>
  10: rustc_span::create_session_globals_then::<(), rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}::{closure#0}>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: the compiler unexpectedly panicked. This is a bug

note: using internal features is not supported and expected to cause internal compiler errors when used incorrectly

warning: the ICE couldn't be written to `/checkout/rustc-ice-2026-03-15T07_17_14-38546.txt`: Read-only file system (os error 30)

note: rustc 1.96.0-nightly (1991d77af 2026-03-15) running on x86_64-unknown-linux-gnu

note: compiler flags: -C opt-level=3 -C embed-bitcode=no -C codegen-units=1 -C embed-bitcode=yes -Z unstable-options -C force-frame-pointers=non-leaf -C debug-assertions=on -Z annotate-moves -Z unstable-options -Z macro-backtrace -C split-debuginfo=off -C prefer-dynamic -Z validate-mir -Z mir-opt-level=3 -Z inline-mir -Z inline-mir-preserve-debug -Z mir_strip_debuginfo=locals-in-tiny-functions -C link-args=-Wl,-z,origin -C link-args=-Wl,-rpath,$ORIGIN/../lib -Z crate-attr=doc(html_root_url="https://doc.rust-lang.org/nightly/") -Z binary-dep-depinfo -Z force-unstable-if-unmarked

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [optimized_mir] optimizing MIR for `array::extra_const_array_ops::{constant#0}::{closure#2}`
---
   1: core::panicking::panic_fmt
   2: rustc_mir_transform::optimized_mir
      [... omitted 1 frame ...]
   3: <rustc_middle::ty::context::TyCtxt>::instance_mir
   4: rustc_data_structures::sync::parallel::par_for_each_in::<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], <rustc_middle::ty::context::TyCtxt>::par_hir_body_owners<rustc_interface::passes::analysis::{closure#1}::{closure#0}>::{closure#0}>
   5: <rustc_session::session::Session>::time::<(), rustc_interface::passes::analysis::{closure#1}>
   6: rustc_interface::passes::analysis
      [... omitted 1 frame ...]
   7: <std::thread::local::LocalKey<core::cell::Cell<*const ()>>>::with::<rustc_middle::ty::context::tls::enter_context<<rustc_middle::ty::context::GlobalCtxt>::enter<rustc_interface::passes::create_and_enter_global_ctxt<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}, core::option::Option<rustc_interface::queries::Linker>>::{closure#1}, core::option::Option<rustc_interface::queries::Linker>>::{closure#0}, core::option::Option<rustc_interface::queries::Linker>>
   8: <rustc_middle::ty::context::TyCtxt>::create_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_interface::passes::create_and_enter_global_ctxt<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}>
   9: rustc_interface::passes::create_and_enter_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>
  10: rustc_span::create_session_globals_then::<(), rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}::{closure#0}>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: the compiler unexpectedly panicked. This is a bug

note: using internal features is not supported and expected to cause internal compiler errors when used incorrectly

warning: the ICE couldn't be written to `/checkout/rustc-ice-2026-03-15T07_17_14-38546.txt`: Read-only file system (os error 30)

note: rustc 1.96.0-nightly (1991d77af 2026-03-15) running on x86_64-unknown-linux-gnu

note: compiler flags: -C opt-level=3 -C embed-bitcode=no -C codegen-units=1 -C embed-bitcode=yes -Z unstable-options -C force-frame-pointers=non-leaf -C debug-assertions=on -Z annotate-moves -Z unstable-options -Z macro-backtrace -C split-debuginfo=off -C prefer-dynamic -Z validate-mir -Z mir-opt-level=3 -Z inline-mir -Z inline-mir-preserve-debug -Z mir_strip_debuginfo=locals-in-tiny-functions -C link-args=-Wl,-z,origin -C link-args=-Wl,-rpath,$ORIGIN/../lib -Z crate-attr=doc(html_root_url="https://doc.rust-lang.org/nightly/") -Z binary-dep-depinfo -Z force-unstable-if-unmarked

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [optimized_mir] optimizing MIR for `array::extra_const_array_ops::{constant#0}::{closure#3}`
---
   1: core::panicking::panic_fmt
   2: rustc_mir_transform::optimized_mir
      [... omitted 1 frame ...]
   3: <rustc_middle::ty::context::TyCtxt>::instance_mir
   4: rustc_data_structures::sync::parallel::par_for_each_in::<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], <rustc_middle::ty::context::TyCtxt>::par_hir_body_owners<rustc_interface::passes::analysis::{closure#1}::{closure#0}>::{closure#0}>
   5: <rustc_session::session::Session>::time::<(), rustc_interface::passes::analysis::{closure#1}>
   6: rustc_interface::passes::analysis
      [... omitted 1 frame ...]
   7: <std::thread::local::LocalKey<core::cell::Cell<*const ()>>>::with::<rustc_middle::ty::context::tls::enter_context<<rustc_middle::ty::context::GlobalCtxt>::enter<rustc_interface::passes::create_and_enter_global_ctxt<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}, core::option::Option<rustc_interface::queries::Linker>>::{closure#1}, core::option::Option<rustc_interface::queries::Linker>>::{closure#0}, core::option::Option<rustc_interface::queries::Linker>>
   8: <rustc_middle::ty::context::TyCtxt>::create_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_interface::passes::create_and_enter_global_ctxt<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}>
   9: rustc_interface::passes::create_and_enter_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>
  10: rustc_span::create_session_globals_then::<(), rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}::{closure#0}>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: the compiler unexpectedly panicked. This is a bug

note: using internal features is not supported and expected to cause internal compiler errors when used incorrectly

warning: the ICE couldn't be written to `/checkout/rustc-ice-2026-03-15T07_17_14-38546.txt`: Read-only file system (os error 30)

note: rustc 1.96.0-nightly (1991d77af 2026-03-15) running on x86_64-unknown-linux-gnu

note: compiler flags: -C opt-level=3 -C embed-bitcode=no -C codegen-units=1 -C embed-bitcode=yes -Z unstable-options -C force-frame-pointers=non-leaf -C debug-assertions=on -Z annotate-moves -Z unstable-options -Z macro-backtrace -C split-debuginfo=off -C prefer-dynamic -Z validate-mir -Z mir-opt-level=3 -Z inline-mir -Z inline-mir-preserve-debug -Z mir_strip_debuginfo=locals-in-tiny-functions -C link-args=-Wl,-z,origin -C link-args=-Wl,-rpath,$ORIGIN/../lib -Z crate-attr=doc(html_root_url="https://doc.rust-lang.org/nightly/") -Z binary-dep-depinfo -Z force-unstable-if-unmarked

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [optimized_mir] optimizing MIR for `array::extra_const_array_ops::{constant#0}::{closure#4}`
---
   1: core::panicking::panic_fmt
   2: rustc_mir_transform::optimized_mir
      [... omitted 1 frame ...]
   3: <rustc_middle::ty::context::TyCtxt>::instance_mir
   4: rustc_data_structures::sync::parallel::par_for_each_in::<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], <rustc_middle::ty::context::TyCtxt>::par_hir_body_owners<rustc_interface::passes::analysis::{closure#1}::{closure#0}>::{closure#0}>
   5: <rustc_session::session::Session>::time::<(), rustc_interface::passes::analysis::{closure#1}>
   6: rustc_interface::passes::analysis
      [... omitted 1 frame ...]
   7: <std::thread::local::LocalKey<core::cell::Cell<*const ()>>>::with::<rustc_middle::ty::context::tls::enter_context<<rustc_middle::ty::context::GlobalCtxt>::enter<rustc_interface::passes::create_and_enter_global_ctxt<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}, core::option::Option<rustc_interface::queries::Linker>>::{closure#1}, core::option::Option<rustc_interface::queries::Linker>>::{closure#0}, core::option::Option<rustc_interface::queries::Linker>>
   8: <rustc_middle::ty::context::TyCtxt>::create_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_interface::passes::create_and_enter_global_ctxt<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}>
   9: rustc_interface::passes::create_and_enter_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>
  10: rustc_span::create_session_globals_then::<(), rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}::{closure#0}>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: the compiler unexpectedly panicked. This is a bug

note: using internal features is not supported and expected to cause internal compiler errors when used incorrectly

warning: the ICE couldn't be written to `/checkout/rustc-ice-2026-03-15T07_17_14-38546.txt`: Read-only file system (os error 30)

note: rustc 1.96.0-nightly (1991d77af 2026-03-15) running on x86_64-unknown-linux-gnu

note: compiler flags: -C opt-level=3 -C embed-bitcode=no -C codegen-units=1 -C embed-bitcode=yes -Z unstable-options -C force-frame-pointers=non-leaf -C debug-assertions=on -Z annotate-moves -Z unstable-options -Z macro-backtrace -C split-debuginfo=off -C prefer-dynamic -Z validate-mir -Z mir-opt-level=3 -Z inline-mir -Z inline-mir-preserve-debug -Z mir_strip_debuginfo=locals-in-tiny-functions -C link-args=-Wl,-z,origin -C link-args=-Wl,-rpath,$ORIGIN/../lib -Z crate-attr=doc(html_root_url="https://doc.rust-lang.org/nightly/") -Z binary-dep-depinfo -Z force-unstable-if-unmarked

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [optimized_mir] optimizing MIR for `array::extra_const_array_ops::{constant#0}::{closure#5}`
---
[RUSTC-TIMING] coretests test:true 127.805
error: could not compile `coretests` (test "coretests")

Caused by:
  process didn't exit successfully: `/checkout/obj/build/bootstrap/debug/rustc /checkout/obj/build/bootstrap/debug/rustc --crate-name coretests --edition=2024 library/coretests/tests/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C opt-level=3 -C embed-bitcode=no -C codegen-units=1 --warn=unexpected_cfgs --check-cfg 'cfg(target_has_reliable_f16)' --check-cfg 'cfg(target_has_reliable_f16_math)' --check-cfg 'cfg(target_has_reliable_f128)' --check-cfg 'cfg(target_has_reliable_f128_math)' -Cembed-bitcode=yes -Zunstable-options -Cforce-frame-pointers=non-leaf -C debug-assertions=on --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=c4aaedd3664dc75a -C extra-filename=-dd6db33073006030 --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/dist/deps --target x86_64-unknown-linux-gnu -L dependency=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/dist/deps -L dependency=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/dist/deps --extern coretests=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/dist/deps/libcoretests-7775460a0f5e7dcb.rlib --extern coretests=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/dist/deps/libcoretests-7775460a0f5e7dcb.rmeta --extern rand=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/dist/deps/librand-4fb692a9f310b790.rlib --extern rand=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/dist/deps/librand-4fb692a9f310b790.rmeta --extern rand_xorshift=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/dist/deps/librand_xorshift-64f5f89de1618e9e.rlib --extern rand_xorshift=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/dist/deps/librand_xorshift-64f5f89de1618e9e.rmeta -Zannotate-moves '--check-cfg=cfg(feature,values(any()))' -Zunstable-options -Zmacro-backtrace -Csplit-debuginfo=off -Cprefer-dynamic -Zvalidate-mir -Zmir-opt-level=3 -Zinline-mir -Zinline-mir-preserve-debug -Zmir_strip_debuginfo=locals-in-tiny-functions -Clink-args=-Wl,-z,origin '-Clink-args=-Wl,-rpath,$ORIGIN/../lib' '-Zcrate-attr=doc(html_root_url="https://doc.rust-lang.org/nightly/")' -Z binary-dep-depinfo` (exit status: 101)
warning: build failed, waiting for other jobs to finish...
[RUSTC-TIMING] path test:true 15.021
[RUSTC-TIMING] alloctests test:true 141.881
[RUSTC-TIMING] corebenches test:true 65.190
Bootstrap failed while executing `test --stage 1 core alloc std test proc_macro`

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