Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

ICE Object safety violation when creating RPITIT trait object #101667

Closed
mejrs opened this issue Sep 10, 2022 · 0 comments · Fixed by #101681
Closed

ICE Object safety violation when creating RPITIT trait object #101667

mejrs opened this issue Sep 10, 2022 · 0 comments · Fixed by #101681
Assignees
@compiler-errors
Labels
C-bug Category: This is a bug. F-return_position_impl_trait_in_trait `#![feature(return_position_impl_trait_in_trait)]` glacier ICE tracked in rust-lang/glacier. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

Comments

@mejrs
Copy link
Contributor

mejrs commented Sep 10, 2022

Playground

Code

#![feature(return_position_impl_trait_in_trait)]
#![allow(incomplete_features)]

use core::fmt::Debug;

trait Foo {
    fn baz(&self) -> impl Debug;
}

impl Foo for u32{
    fn baz(&self) -> u32{
        32
    }
}

fn main() {
    let i = Box::new(42_u32) as Box<dyn Foo>;
}
Backtrace 

   Compiling playground v0.0.1 (/playground)
thread 'rustc' panicked at 'assertion failed: `(left == right)`
  left: `AssocFn`,
 right: `Trait`', compiler/rustc_middle/src/ty/sty.rs:1201:9
stack backtrace:
   0:     0x7f0c243cceb0 - std::backtrace_rs::backtrace::libunwind::trace::h134b013ea56868ec
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   1:     0x7f0c243cceb0 - std::backtrace_rs::backtrace::trace_unsynchronized::h85519da7927ab55d
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f0c243cceb0 - std::sys_common::backtrace::_print_fmt::hd53e324e4c5c4797
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/std/src/sys_common/backtrace.rs:66:5
   3:     0x7f0c243cceb0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he7ebdae3b4539151
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/std/src/sys_common/backtrace.rs:45:22
   4:     0x7f0c24427efe - core::fmt::write::h533f83a763826dcd
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/core/src/fmt/mod.rs:1202:17
   5:     0x7f0c243bd795 - std::io::Write::write_fmt::hdf475e0edabf6618
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/std/src/io/mod.rs:1679:15
   6:     0x7f0c243cfb63 - std::sys_common::backtrace::_print::h18929d2d3a122c2e
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/std/src/sys_common/backtrace.rs:48:5
   7:     0x7f0c243cfb63 - std::sys_common::backtrace::print::heeac666312b0f106
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/std/src/sys_common/backtrace.rs:35:9
   8:     0x7f0c243cfb63 - std::panicking::default_hook::{{closure}}::h691c919edee7ee4f
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/std/src/panicking.rs:295:22
   9:     0x7f0c243cf84f - std::panicking::default_hook::h4d42a88885d5436b
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/std/src/panicking.rs:314:9
  10:     0x7f0c26c408c1 - <rustc_driver[d98f0e6bb6d3ec36]::DEFAULT_HOOK::{closure#0}::{closure#0} as core[7554d75f727e5dc5]::ops::function::FnOnce<(&core[7554d75f727e5dc5]::panic::panic_info::PanicInfo,)>>::call_once::{shim:vtable#0}
  11:     0x7f0c243d039d - std::panicking::rust_panic_with_hook::h047e9ae9d3b70dff
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/std/src/panicking.rs:702:17
  12:     0x7f0c243d01f7 - std::panicking::begin_panic_handler::{{closure}}::hfe5deddff7ce3f84
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/std/src/panicking.rs:588:13
  13:     0x7f0c243cd35c - std::sys_common::backtrace::__rust_end_short_backtrace::h2534c34f27aaf3c3
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/std/src/sys_common/backtrace.rs:138:18
  14:     0x7f0c243cff12 - rust_begin_unwind
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/std/src/panicking.rs:584:5
  15:     0x7f0c24424ad3 - core::panicking::panic_fmt::h7c2848f37f3b2512
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/core/src/panicking.rs:142:14
  16:     0x7f0c24424cdb - core::panicking::assert_failed_inner::h8f7f545723fe49de
  17:     0x7f0c27c7c3dc - core[7554d75f727e5dc5]::panicking::assert_failed::<rustc_hir[4d2bdebed2f47bbb]::def::DefKind, rustc_hir[4d2bdebed2f47bbb]::def::DefKind>
  18:     0x7f0c255db443 - <rustc_middle[5ec0a2377659145d]::ty::sty::ProjectionTy>::trait_ref
  19:     0x7f0c2676061a - <rustc_trait_selection[6aa409e95a4f5afb]::traits::object_safety::contains_illegal_self_type_reference::IllegalSelfTypeVisitor as rustc_middle[5ec0a2377659145d]::ty::visit::TypeVisitor>::visit_ty
  20:     0x7f0c2675e5cf - rustc_trait_selection[6aa409e95a4f5afb]::traits::object_safety::virtual_call_violation_for_method
  21:     0x7f0c2690c478 - rustc_trait_selection[6aa409e95a4f5afb]::traits::object_safety::object_safety_violation_for_method
  22:     0x7f0c2690c323 - <core[7554d75f727e5dc5]::iter::adapters::map::Map<core[7554d75f727e5dc5]::iter::adapters::map::Map<core[7554d75f727e5dc5]::slice::iter::Iter<(rustc_span[3ca79a2f950a640c]::symbol::Symbol, &rustc_middle[5ec0a2377659145d]::ty::assoc::AssocItem)>, <rustc_data_structures[a88d71faf1e0b01c]::sorted_map::index_map::SortedIndexMultiMap<u32, rustc_span[3ca79a2f950a640c]::symbol::Symbol, &rustc_middle[5ec0a2377659145d]::ty::assoc::AssocItem>>::iter::{closure#0}>, <rustc_middle[5ec0a2377659145d]::ty::assoc::AssocItems>::in_definition_order::{closure#0}> as core[7554d75f727e5dc5]::iter::traits::iterator::Iterator>::try_fold::<(), core[7554d75f727e5dc5]::iter::adapters::filter::filter_try_fold<&rustc_middle[5ec0a2377659145d]::ty::assoc::AssocItem, (), core[7554d75f727e5dc5]::ops::control_flow::ControlFlow<rustc_middle[5ec0a2377659145d]::traits::ObjectSafetyViolation>, rustc_trait_selection[6aa409e95a4f5afb]::traits::object_safety::object_safety_violations_for_trait::{closure#0}, core[7554d75f727e5dc5]::iter::adapters::filter_map::filter_map_try_fold<&rustc_middle[5ec0a2377659145d]::ty::assoc::AssocItem, rustc_middle[5ec0a2377659145d]::traits::ObjectSafetyViolation, (), core[7554d75f727e5dc5]::ops::control_flow::ControlFlow<rustc_middle[5ec0a2377659145d]::traits::ObjectSafetyViolation>, rustc_trait_selection[6aa409e95a4f5afb]::traits::object_safety::object_safety_violations_for_trait::{closure#1}, core[7554d75f727e5dc5]::iter::traits::iterator::Iterator::find::check<rustc_middle[5ec0a2377659145d]::traits::ObjectSafetyViolation, &mut rustc_trait_selection[6aa409e95a4f5afb]::traits::object_safety::object_safety_violations_for_trait::{closure#2}>::{closure#0}>::{closure#0}>::{closure#0}, core[7554d75f727e5dc5]::ops::control_flow::ControlFlow<rustc_middle[5ec0a2377659145d]::traits::ObjectSafetyViolation>>
  23:     0x7f0c2690c0e5 - <alloc[b78997af7b72d6fd]::vec::Vec<rustc_middle[5ec0a2377659145d]::traits::ObjectSafetyViolation> as alloc[b78997af7b72d6fd]::vec::spec_from_iter::SpecFromIter<rustc_middle[5ec0a2377659145d]::traits::ObjectSafetyViolation, core[7554d75f727e5dc5]::iter::adapters::filter::Filter<core[7554d75f727e5dc5]::iter::adapters::filter_map::FilterMap<core[7554d75f727e5dc5]::iter::adapters::filter::Filter<core[7554d75f727e5dc5]::iter::adapters::map::Map<core[7554d75f727e5dc5]::iter::adapters::map::Map<core[7554d75f727e5dc5]::slice::iter::Iter<(rustc_span[3ca79a2f950a640c]::symbol::Symbol, &rustc_middle[5ec0a2377659145d]::ty::assoc::AssocItem)>, <rustc_data_structures[a88d71faf1e0b01c]::sorted_map::index_map::SortedIndexMultiMap<u32, rustc_span[3ca79a2f950a640c]::symbol::Symbol, &rustc_middle[5ec0a2377659145d]::ty::assoc::AssocItem>>::iter::{closure#0}>, <rustc_middle[5ec0a2377659145d]::ty::assoc::AssocItems>::in_definition_order::{closure#0}>, rustc_trait_selection[6aa409e95a4f5afb]::traits::object_safety::object_safety_violations_for_trait::{closure#0}>, rustc_trait_selection[6aa409e95a4f5afb]::traits::object_safety::object_safety_violations_for_trait::{closure#1}>, rustc_trait_selection[6aa409e95a4f5afb]::traits::object_safety::object_safety_violations_for_trait::{closure#2}>>>::from_iter
  24:     0x7f0c2690b2c1 - <&mut rustc_trait_selection[6aa409e95a4f5afb]::traits::object_safety::object_safety_violations::{closure#0} as core[7554d75f727e5dc5]::ops::function::FnOnce<(rustc_span[3ca79a2f950a640c]::def_id::DefId,)>>::call_once
  25:     0x7f0c2690aeee - <core[7554d75f727e5dc5]::iter::adapters::flatten::FlatMap<rustc_trait_selection[6aa409e95a4f5afb]::traits::util::SupertraitDefIds, alloc[b78997af7b72d6fd]::vec::Vec<rustc_middle[5ec0a2377659145d]::traits::ObjectSafetyViolation>, rustc_trait_selection[6aa409e95a4f5afb]::traits::object_safety::object_safety_violations::{closure#0}> as core[7554d75f727e5dc5]::iter::traits::iterator::Iterator>::next
  26:     0x7f0c2690a92c - <smallvec[82b7c39641e540d7]::SmallVec<[rustc_middle[5ec0a2377659145d]::traits::ObjectSafetyViolation; 8usize]> as core[7554d75f727e5dc5]::iter::traits::collect::Extend<rustc_middle[5ec0a2377659145d]::traits::ObjectSafetyViolation>>::extend::<core[7554d75f727e5dc5]::iter::adapters::flatten::FlatMap<rustc_trait_selection[6aa409e95a4f5afb]::traits::util::SupertraitDefIds, alloc[b78997af7b72d6fd]::vec::Vec<rustc_middle[5ec0a2377659145d]::traits::ObjectSafetyViolation>, rustc_trait_selection[6aa409e95a4f5afb]::traits::object_safety::object_safety_violations::{closure#0}>>
  27:     0x7f0c2690a6e1 - <rustc_middle[5ec0a2377659145d]::arena::Arena>::alloc_from_iter::<rustc_middle[5ec0a2377659145d]::traits::ObjectSafetyViolation, rustc_arena[f7821bde00f9661f]::IsNotCopy, core[7554d75f727e5dc5]::iter::adapters::flatten::FlatMap<rustc_trait_selection[6aa409e95a4f5afb]::traits::util::SupertraitDefIds, alloc[b78997af7b72d6fd]::vec::Vec<rustc_middle[5ec0a2377659145d]::traits::ObjectSafetyViolation>, rustc_trait_selection[6aa409e95a4f5afb]::traits::object_safety::object_safety_violations::{closure#0}>>
  28:     0x7f0c2690a693 - rustc_trait_selection[6aa409e95a4f5afb]::traits::object_safety::object_safety_violations
  29:     0x7f0c26a142a4 - rustc_query_system[bca4d9faa69393e7]::query::plumbing::try_execute_query::<rustc_query_impl[856212b54321fa84]::plumbing::QueryCtxt, rustc_query_system[bca4d9faa69393e7]::query::caches::DefaultCache<rustc_span[3ca79a2f950a640c]::def_id::DefId, &[rustc_middle[5ec0a2377659145d]::traits::ObjectSafetyViolation]>>
  30:     0x7f0c26a13f1c - rustc_query_system[bca4d9faa69393e7]::query::plumbing::get_query::<rustc_query_impl[856212b54321fa84]::queries::object_safety_violations, rustc_query_impl[856212b54321fa84]::plumbing::QueryCtxt>
  31:     0x7f0c25811bb2 - <rustc_middle[5ec0a2377659145d]::ty::context::TyCtxt>::is_object_safe
  32:     0x7f0c25800999 - <rustc_trait_selection[6aa409e95a4f5afb]::traits::fulfill::FulfillProcessor as rustc_data_structures[a88d71faf1e0b01c]::obligation_forest::ObligationProcessor>::process_obligation
  33:     0x7f0c257f974c - <rustc_data_structures[a88d71faf1e0b01c]::obligation_forest::ObligationForest<rustc_trait_selection[6aa409e95a4f5afb]::traits::fulfill::PendingPredicateObligation>>::process_obligations::<rustc_trait_selection[6aa409e95a4f5afb]::traits::fulfill::FulfillProcessor, rustc_data_structures[a88d71faf1e0b01c]::obligation_forest::Outcome<rustc_trait_selection[6aa409e95a4f5afb]::traits::fulfill::PendingPredicateObligation, rustc_infer[28b58e7125d8d26c]::traits::FulfillmentErrorCode>>
  34:     0x7f0c257f9246 - <rustc_trait_selection[6aa409e95a4f5afb]::traits::fulfill::FulfillmentContext as rustc_infer[28b58e7125d8d26c]::traits::engine::TraitEngine>::select_where_possible
  35:     0x7f0c257f1244 - <rustc_typeck[5407d422550b7e3e]::check::fn_ctxt::FnCtxt>::check_call
  36:     0x7f0c257b2816 - <rustc_typeck[5407d422550b7e3e]::check::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  37:     0x7f0c257b4f9e - <rustc_typeck[5407d422550b7e3e]::check::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  38:     0x7f0c257ef111 - <rustc_typeck[5407d422550b7e3e]::check::fn_ctxt::FnCtxt>::check_decl
  39:     0x7f0c257ebc1c - <rustc_typeck[5407d422550b7e3e]::check::fn_ctxt::FnCtxt>::check_block_with_expected
  40:     0x7f0c257b2990 - <rustc_typeck[5407d422550b7e3e]::check::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  41:     0x7f0c259aef16 - <rustc_typeck[5407d422550b7e3e]::check::fn_ctxt::FnCtxt>::check_return_expr
  42:     0x7f0c259a5fc1 - rustc_typeck[5407d422550b7e3e]::check::check::check_fn
  43:     0x7f0c2599730e - <rustc_typeck[5407d422550b7e3e]::check::inherited::InheritedBuilder>::enter::<rustc_typeck[5407d422550b7e3e]::check::typeck_with_fallback<rustc_typeck[5407d422550b7e3e]::check::typeck::{closure#0}>::{closure#1}, &rustc_middle[5ec0a2377659145d]::ty::context::TypeckResults>
  44:     0x7f0c259953ff - rustc_typeck[5407d422550b7e3e]::check::typeck
  45:     0x7f0c264e8763 - rustc_query_system[bca4d9faa69393e7]::query::plumbing::try_execute_query::<rustc_query_impl[856212b54321fa84]::plumbing::QueryCtxt, rustc_query_system[bca4d9faa69393e7]::query::caches::DefaultCache<rustc_span[3ca79a2f950a640c]::def_id::LocalDefId, &rustc_middle[5ec0a2377659145d]::ty::context::TypeckResults>>
  46:     0x7f0c26b7aa53 - <rustc_query_impl[856212b54321fa84]::Queries as rustc_middle[5ec0a2377659145d]::ty::query::QueryEngine>::typeck
  47:     0x7f0c269cabb7 - rustc_data_structures[a88d71faf1e0b01c]::sync::par_for_each_in::<&[rustc_span[3ca79a2f950a640c]::def_id::LocalDefId], <rustc_middle[5ec0a2377659145d]::hir::map::Map>::par_body_owners<rustc_typeck[5407d422550b7e3e]::check::typeck_item_bodies::{closure#0}>::{closure#0}>
  48:     0x7f0c269ca973 - rustc_typeck[5407d422550b7e3e]::check::typeck_item_bodies
  49:     0x7f0c268cbe09 - rustc_query_system[bca4d9faa69393e7]::query::plumbing::try_execute_query::<rustc_query_impl[856212b54321fa84]::plumbing::QueryCtxt, rustc_query_system[bca4d9faa69393e7]::query::caches::DefaultCache<(), ()>>
  50:     0x7f0c268cbb3c - rustc_query_system[bca4d9faa69393e7]::query::plumbing::get_query::<rustc_query_impl[856212b54321fa84]::queries::typeck_item_bodies, rustc_query_impl[856212b54321fa84]::plumbing::QueryCtxt>
  51:     0x7f0c25f8a87f - <rustc_session[79f725fc979de867]::session::Session>::time::<(), rustc_typeck[5407d422550b7e3e]::check_crate::{closure#7}>
  52:     0x7f0c25f8a43f - rustc_typeck[5407d422550b7e3e]::check_crate
  53:     0x7f0c25f89a07 - rustc_interface[b8431be2dc9777a]::passes::analysis
  54:     0x7f0c26a1b8dd - rustc_query_system[bca4d9faa69393e7]::query::plumbing::try_execute_query::<rustc_query_impl[856212b54321fa84]::plumbing::QueryCtxt, rustc_query_system[bca4d9faa69393e7]::query::caches::DefaultCache<(), core[7554d75f727e5dc5]::result::Result<(), rustc_errors[623939cad04cb150]::ErrorGuaranteed>>>
  55:     0x7f0c26a1b5fc - rustc_query_system[bca4d9faa69393e7]::query::plumbing::get_query::<rustc_query_impl[856212b54321fa84]::queries::analysis, rustc_query_impl[856212b54321fa84]::plumbing::QueryCtxt>
  56:     0x7f0c25a0d2b7 - <rustc_interface[b8431be2dc9777a]::passes::QueryContext>::enter::<rustc_driver[d98f0e6bb6d3ec36]::run_compiler::{closure#1}::{closure#2}::{closure#3}, core[7554d75f727e5dc5]::result::Result<(), rustc_errors[623939cad04cb150]::ErrorGuaranteed>>
  57:     0x7f0c25a00cec - rustc_interface[b8431be2dc9777a]::interface::create_compiler_and_run::<core[7554d75f727e5dc5]::result::Result<(), rustc_errors[623939cad04cb150]::ErrorGuaranteed>, rustc_driver[d98f0e6bb6d3ec36]::run_compiler::{closure#1}>
  58:     0x7f0c259ff631 - <scoped_tls[a530c759821a22c4]::ScopedKey<rustc_span[3ca79a2f950a640c]::SessionGlobals>>::set::<rustc_interface[b8431be2dc9777a]::interface::run_compiler<core[7554d75f727e5dc5]::result::Result<(), rustc_errors[623939cad04cb150]::ErrorGuaranteed>, rustc_driver[d98f0e6bb6d3ec36]::run_compiler::{closure#1}>::{closure#0}, core[7554d75f727e5dc5]::result::Result<(), rustc_errors[623939cad04cb150]::ErrorGuaranteed>>
  59:     0x7f0c259ff31f - std[d1a185ff54d98716]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[b8431be2dc9777a]::util::run_in_thread_pool_with_globals<rustc_interface[b8431be2dc9777a]::interface::run_compiler<core[7554d75f727e5dc5]::result::Result<(), rustc_errors[623939cad04cb150]::ErrorGuaranteed>, rustc_driver[d98f0e6bb6d3ec36]::run_compiler::{closure#1}>::{closure#0}, core[7554d75f727e5dc5]::result::Result<(), rustc_errors[623939cad04cb150]::ErrorGuaranteed>>::{closure#0}, core[7554d75f727e5dc5]::result::Result<(), rustc_errors[623939cad04cb150]::ErrorGuaranteed>>
  60:     0x7f0c26aa95c0 - <<std[d1a185ff54d98716]::thread::Builder>::spawn_unchecked_<rustc_interface[b8431be2dc9777a]::util::run_in_thread_pool_with_globals<rustc_interface[b8431be2dc9777a]::interface::run_compiler<core[7554d75f727e5dc5]::result::Result<(), rustc_errors[623939cad04cb150]::ErrorGuaranteed>, rustc_driver[d98f0e6bb6d3ec36]::run_compiler::{closure#1}>::{closure#0}, core[7554d75f727e5dc5]::result::Result<(), rustc_errors[623939cad04cb150]::ErrorGuaranteed>>::{closure#0}, core[7554d75f727e5dc5]::result::Result<(), rustc_errors[623939cad04cb150]::ErrorGuaranteed>>::{closure#1} as core[7554d75f727e5dc5]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  61:     0x7f0c243da173 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hddcbc9655423aa50
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/alloc/src/boxed.rs:1940:9
  62:     0x7f0c243da173 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h074e83f188f31ba5
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/alloc/src/boxed.rs:1940:9
  63:     0x7f0c243da173 - std::sys::unix::thread::Thread::new::thread_start::h7d9ec4c6a6f5322e
                               at /rustc/1d37ed661a6922e7a167609b8cd7eb31e972b19b/library/std/src/sys/unix/thread.rs:108:17
  64:     0x7f0c242ad609 - start_thread
  65:     0x7f0c241d0133 - clone
  66:                0x0 - <unknown>

error: internal compiler error: unexpected panic

note: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https:/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

note: rustc 1.65.0-nightly (1d37ed661 2022-09-09) running on x86_64-unknown-linux-gnu

note: compiler flags: --crate-type bin -C embed-bitcode=no -C codegen-units=1 -C debuginfo=2

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

query stack during panic:
#0 [object_safety_violations] determine object safety of trait `Foo`
#1 [typeck] type-checking `main`
#2 [typeck_item_bodies] type-checking all item bodies
#3 [analysis] running analysis passes on this crate
end of query stack
error: could not compile `playground`

@rustbot label F-return_position_impl_trait_in_trait
cc @compiler-errors
@mejrs mejrs added C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Sep 10, 2022
@rustbot rustbot added the F-return_position_impl_trait_in_trait `#![feature(return_position_impl_trait_in_trait)]` label Sep 10, 2022
@compiler-errors compiler-errors self-assigned this Sep 11, 2022
@compiler-errors compiler-errors mentioned this issue Sep 11, 2022
Merged
matthiaskrgr added a commit to matthiaskrgr/glacier that referenced this issue Sep 11, 2022
@matthiaskrgr
add 3/4 ices
2bb37ad 
rust-lang/rust#101660
rust-lang/rust#101665
rust-lang/rust#101667
@matthiaskrgr matthiaskrgr mentioned this issue Sep 11, 2022
Merged
@rust-lang-glacier-bot rust-lang-glacier-bot added the glacier ICE tracked in rust-lang/glacier. label Sep 11, 2022
@bors bors closed this as completed in 6bacb6f Sep 12, 2022
@github-actions github-actions bot mentioned this issue Sep 13, 2022
Merged
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees

@compiler-errors compiler-errors

Labels
C-bug Category: This is a bug. F-return_position_impl_trait_in_trait `#![feature(return_position_impl_trait_in_trait)]` glacier ICE tracked in rust-lang/glacier. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
Projects
None yet
Milestone
No milestone
Development

Successfully merging a pull request may close this issue.

Deny return-position impl Trait in traits for object safety compiler-errors/rust
4 participants
@compiler-errors @rustbot @rust-lang-glacier-bot @mejrs