ICE: relating different kinds #121134

matthiaskrgr · 2024-02-15T08:34:02Z

auto-reduced (treereduce-rust):

trait Output<'a> {
    type Type;
}

struct Wrapper;

impl Wrapper {
    fn do_something_wrapper<O, F>(&mut self, do_something_wrapper: F)
    where
        FnOnce:,
        F: for<'a> FnOnce(<F as Output<i32, _>>::Type),
    {
    }
}

fn main() {
    let mut wrapper = Wrapper;
    wrapper.do_something_wrapper::<i32, _>(|value| ());
}

original:

trait Output<'a> {
    type Type;
    fn convert() -> Self::Type;
}

impl<'a> Output<'a> for i32 {
    type Type = i32;
    
    fn value() -> i32 {
        0
    }
}

struct Wrapper;

impl Wrapper {
    fn do_something_wrapper<O, F>(&mut self, do_something_wrapper: F)
    where
        FnOnce: for<'a> FnOnce(<O as Output<'a>>::Type),
        F: for<'a> FnOnce(<F as Output<i32, _>>::Type)
    {
        let mut wrapper = Wrapper;
        use_output(main)
    }
}

fn main() {
    let mut wrapper = Wrapper;
    wrapper.do_something_wrapper::<i32, _>(|value| ());
}

Version information

rustc 1.78.0-nightly (ee9c7c940 2024-02-14)
binary: rustc
commit-hash: ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46
commit-date: 2024-02-14
host: x86_64-unknown-linux-gnu
release: 1.78.0-nightly
LLVM version: 18.1.0

Command:
/home/matthias/.rustup/toolchains/master/bin/rustc

Program output

warning: trait objects without an explicit `dyn` are deprecated
  --> /tmp/icemaker_global_tempdir.wdCSc9CZAHuk/rustc_testrunner_tmpdir_reporting.I3PIjjehTcn6/mvce.rs:10:9
   |
10 |         FnOnce:,
   |         ^^^^^^
   |
   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
   = note: `#[warn(bare_trait_objects)]` on by default
help: if this is an object-safe trait, use `dyn`
   |
10 |         dyn FnOnce:,
   |         +++

error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
  --> /tmp/icemaker_global_tempdir.wdCSc9CZAHuk/rustc_testrunner_tmpdir_reporting.I3PIjjehTcn6/mvce.rs:10:9
   |
10 |         FnOnce:,
   |         ^^^^^^ help: use parenthetical notation instead: `FnOnce() -> ()`
   |
   = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
   = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
   = note: this compiler was built on 2024-02-14; consider upgrading it if it is out of date

error[E0107]: missing generics for trait `FnOnce`
   --> /tmp/icemaker_global_tempdir.wdCSc9CZAHuk/rustc_testrunner_tmpdir_reporting.I3PIjjehTcn6/mvce.rs:10:9
    |
10  |         FnOnce:,
    |         ^^^^^^ expected 1 generic argument
    |
note: trait defined here, with 1 generic parameter: `Args`
   --> /home/matthias/.rustup/toolchains/master/lib/rustlib/src/rust/library/core/src/ops/function.rs:242:11
    |
242 | pub trait FnOnce<Args: Tuple> {
    |           ^^^^^^ ----
help: add missing generic argument
    |
10  |         FnOnce<Args>:,
    |               ++++++

error[E0191]: the value of the associated type `Output` in `FnOnce` must be specified
  --> /tmp/icemaker_global_tempdir.wdCSc9CZAHuk/rustc_testrunner_tmpdir_reporting.I3PIjjehTcn6/mvce.rs:10:9
   |
10 |         FnOnce:,
   |         ^^^^^^ help: specify the associated type: `FnOnce<Output = Type>`

error[E0107]: trait takes 0 generic arguments but 2 generic arguments were supplied
  --> /tmp/icemaker_global_tempdir.wdCSc9CZAHuk/rustc_testrunner_tmpdir_reporting.I3PIjjehTcn6/mvce.rs:11:33
   |
11 |         F: for<'a> FnOnce(<F as Output<i32, _>>::Type),
   |                                 ^^^^^^ ------ help: remove these generic arguments
   |                                 |
   |                                 expected 0 generic arguments
   |
note: trait defined here, with 0 generic parameters
  --> /tmp/icemaker_global_tempdir.wdCSc9CZAHuk/rustc_testrunner_tmpdir_reporting.I3PIjjehTcn6/mvce.rs:1:7
   |
1  | trait Output<'a> {
   |       ^^^^^^

error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
  --> /tmp/icemaker_global_tempdir.wdCSc9CZAHuk/rustc_testrunner_tmpdir_reporting.I3PIjjehTcn6/mvce.rs:11:45
   |
11 |         F: for<'a> FnOnce(<F as Output<i32, _>>::Type),
   |                                             ^ not allowed in type signatures
   |
help: use type parameters instead
   |
8  ~     fn do_something_wrapper<O, F, T>(&mut self, do_something_wrapper: F)
9  |     where
10 |         FnOnce:,
11 ~         F: for<'a> FnOnce(<F as Output<i32, T>>::Type),
   |

error[E0277]: the trait bound `for<'a> F: Output<'a>` is not satisfied
  --> /tmp/icemaker_global_tempdir.wdCSc9CZAHuk/rustc_testrunner_tmpdir_reporting.I3PIjjehTcn6/mvce.rs:8:5
   |
8  | /     fn do_something_wrapper<O, F>(&mut self, do_something_wrapper: F)
9  | |     where
10 | |         FnOnce:,
11 | |         F: for<'a> FnOnce(<F as Output<i32, _>>::Type),
   | |_______________________________________________________^ the trait `for<'a> Output<'a>` is not implemented for `F`
   |
help: consider further restricting this bound
   |
11 |         F: for<'a> FnOnce(<F as Output<i32, _>>::Type) + for<'a> Output<'a>,
   |                                                        ++++++++++++++++++++

error[E0277]: the trait bound `for<'a> F: Output<'a>` is not satisfied
 --> /tmp/icemaker_global_tempdir.wdCSc9CZAHuk/rustc_testrunner_tmpdir_reporting.I3PIjjehTcn6/mvce.rs:8:8
  |
8 |     fn do_something_wrapper<O, F>(&mut self, do_something_wrapper: F)
  |        ^^^^^^^^^^^^^^^^^^^^ the trait `for<'a> Output<'a>` is not implemented for `F`
  |
help: consider further restricting this bound
  |
11|         F: for<'a> FnOnce(<F as Output<i32, _>>::Type) + for<'a> Output<'a>,
  |                                                        ++++++++++++++++++++

error[E0277]: the trait bound `F: Output<'_>` is not satisfied
  --> /tmp/icemaker_global_tempdir.wdCSc9CZAHuk/rustc_testrunner_tmpdir_reporting.I3PIjjehTcn6/mvce.rs:11:12
   |
11 |         F: for<'a> FnOnce(<F as Output<i32, _>>::Type),
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Output<'_>` is not implemented for `F`
   |
help: consider further restricting this bound
   |
11 |         F: for<'a> FnOnce(<F as Output<i32, _>>::Type) + Output<'_>,
   |                                                        ++++++++++++

error[E0277]: the trait bound `F: Output<'_>` is not satisfied
  --> /tmp/icemaker_global_tempdir.wdCSc9CZAHuk/rustc_testrunner_tmpdir_reporting.I3PIjjehTcn6/mvce.rs:11:20
   |
11 |         F: for<'a> FnOnce(<F as Output<i32, _>>::Type),
   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Output<'_>` is not implemented for `F`
   |
help: consider further restricting this bound
   |
11 |         F: for<'a> FnOnce(<F as Output<i32, _>>::Type) + Output<'_>,
   |                                                        ++++++++++++

error: internal compiler error: compiler/rustc_infer/src/infer/at.rs:418:21: relating different kinds: (Alias(Projection, AliasTy { args: [?2t, RePlaceholder(!9_BoundRegion { var: 1, kind: BrNamed(DefId(0:15 ~ mvce[f223]::{impl#0}::do_something_wrapper::'_), '_) })], def_id: DefId(0:5 ~ mvce[f223]::Output::Type) }),) RePlaceholder(!7_BoundRegion { var: 1, kind: BrNamed(DefId(0:15 ~ mvce[f223]::{impl#0}::do_something_wrapper::'_), '_) })

thread 'rustc' panicked at compiler/rustc_middle/src/util/bug.rs:35:44:
Box<dyn Any>
stack backtrace:
   0:     0x7f1b8f656e46 - std::backtrace_rs::backtrace::libunwind::trace::h5168cb64cb843b87
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
   1:     0x7f1b8f656e46 - std::backtrace_rs::backtrace::trace_unsynchronized::hbbff473666b784c6
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f1b8f656e46 - std::sys_common::backtrace::_print_fmt::h6c61b632e6cc7949
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/std/src/sys_common/backtrace.rs:68:5
   3:     0x7f1b8f656e46 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h974a6b559c2b8d41
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7f1b8f6a746c - core::fmt::rt::Argument::fmt::hf6a5273aff56768c
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/core/src/fmt/rt.rs:142:9
   5:     0x7f1b8f6a746c - core::fmt::write::h1caffe3a78971207
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/core/src/fmt/mod.rs:1120:17
   6:     0x7f1b8f64a7ef - std::io::Write::write_fmt::h2caf2bb3485e27a5
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/std/src/io/mod.rs:1854:15
   7:     0x7f1b8f656bf4 - std::sys_common::backtrace::_print::h0414d95b24b9ea44
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x7f1b8f656bf4 - std::sys_common::backtrace::print::hfdf60e3b3d06625d
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x7f1b8f65993b - std::panicking::default_hook::{{closure}}::h3c1109072cde0ade
  10:     0x7f1b8f659689 - std::panicking::default_hook::hfe3c076d4f24ecbe
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/std/src/panicking.rs:292:9
  11:     0x7f1b8c3f563c - std[2308076c1424b998]::panicking::update_hook::<alloc[33ce0ef41c101337]::boxed::Box<rustc_driver_impl[d317596fd5f90102]::install_ice_hook::{closure#0}>>::{closure#0}
  12:     0x7f1b8f65a0a0 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h8a55f98e23703736
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/alloc/src/boxed.rs:2030:9
  13:     0x7f1b8f65a0a0 - std::panicking::rust_panic_with_hook::hc147efcd5d482f2c
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/std/src/panicking.rs:785:13
  14:     0x7f1b8c422cf4 - std[2308076c1424b998]::panicking::begin_panic::<rustc_errors[5b15740bab0110e6]::ExplicitBug>::{closure#0}
  15:     0x7f1b8c41f656 - std[2308076c1424b998]::sys_common::backtrace::__rust_end_short_backtrace::<std[2308076c1424b998]::panicking::begin_panic<rustc_errors[5b15740bab0110e6]::ExplicitBug>::{closure#0}, !>
  16:     0x7f1b8c41abd6 - std[2308076c1424b998]::panicking::begin_panic::<rustc_errors[5b15740bab0110e6]::ExplicitBug>
  17:     0x7f1b8c42e841 - <rustc_errors[5b15740bab0110e6]::diagnostic_builder::BugAbort as rustc_errors[5b15740bab0110e6]::diagnostic_builder::EmissionGuarantee>::emit_producing_guarantee
  18:     0x7f1b8c7eed3e - <rustc_errors[5b15740bab0110e6]::DiagCtxt>::bug::<alloc[33ce0ef41c101337]::string::String>
  19:     0x7f1b8c88b47b - rustc_middle[efc8e2d5742a68dd]::util::bug::opt_span_bug_fmt::<rustc_span[e043cedf16fd8748]::span_encoding::Span>::{closure#0}
  20:     0x7f1b8c870f9a - rustc_middle[efc8e2d5742a68dd]::ty::context::tls::with_opt::<rustc_middle[efc8e2d5742a68dd]::util::bug::opt_span_bug_fmt<rustc_span[e043cedf16fd8748]::span_encoding::Span>::{closure#0}, !>::{closure#0}
  21:     0x7f1b8c870e18 - rustc_middle[efc8e2d5742a68dd]::ty::context::tls::with_context_opt::<rustc_middle[efc8e2d5742a68dd]::ty::context::tls::with_opt<rustc_middle[efc8e2d5742a68dd]::util::bug::opt_span_bug_fmt<rustc_span[e043cedf16fd8748]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  22:     0x7f1b8aca02d0 - rustc_middle[efc8e2d5742a68dd]::util::bug::bug_fmt
  23:     0x7f1b8c692657 - <rustc_middle[efc8e2d5742a68dd]::ty::generic_args::GenericArg as rustc_infer[70bd439f8050a3aa]::infer::at::ToTrace>::to_trace
  24:     0x7f1b8cdf6d46 - <rustc_infer[70bd439f8050a3aa]::infer::at::At>::eq::<rustc_middle[efc8e2d5742a68dd]::ty::generic_args::GenericArg>
  25:     0x7f1b8cdf745c - <rustc_infer[70bd439f8050a3aa]::infer::InferCtxt>::enter_forall::<rustc_middle[efc8e2d5742a68dd]::ty::predicate::TraitPredicate, (), <rustc_infer[70bd439f8050a3aa]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[8cacf4ad37a3d0db]::traits::error_reporting::suggestions::TypeErrCtxtExt>::note_function_argument_obligation::{closure#0}>
  26:     0x7f1b8cecdd7c - <rustc_infer[70bd439f8050a3aa]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[8cacf4ad37a3d0db]::traits::error_reporting::suggestions::TypeErrCtxtExt>::note_function_argument_obligation
  27:     0x7f1b8cec919f - <rustc_infer[70bd439f8050a3aa]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[8cacf4ad37a3d0db]::traits::error_reporting::suggestions::TypeErrCtxtExt>::note_obligation_cause_code::<rustc_middle[efc8e2d5742a68dd]::ty::predicate::Predicate>
  28:     0x7f1b8cee7215 - <rustc_infer[70bd439f8050a3aa]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[8cacf4ad37a3d0db]::traits::error_reporting::type_err_ctxt_ext::InferCtxtPrivExt>::note_obligation_cause
  29:     0x7f1b8ceda218 - <rustc_infer[70bd439f8050a3aa]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[8cacf4ad37a3d0db]::traits::error_reporting::type_err_ctxt_ext::TypeErrCtxtExt>::report_selection_error
  30:     0x7f1b8cf029c1 - <rustc_infer[70bd439f8050a3aa]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[8cacf4ad37a3d0db]::traits::error_reporting::type_err_ctxt_ext::InferCtxtPrivExt>::report_fulfillment_error
  31:     0x7f1b8ced77ca - <rustc_infer[70bd439f8050a3aa]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[8cacf4ad37a3d0db]::traits::error_reporting::type_err_ctxt_ext::TypeErrCtxtExt>::report_fulfillment_errors
  32:     0x7f1b8df3c25f - <rustc_hir_typeck[7d91c7b0ed43ba5f]::fn_ctxt::FnCtxt>::type_inference_fallback
  33:     0x7f1b8d782d76 - rustc_hir_typeck[7d91c7b0ed43ba5f]::typeck
  34:     0x7f1b8d781fdf - rustc_query_impl[ecef4a4fa1cc3689]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecef4a4fa1cc3689]::query_impl::typeck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[efc8e2d5742a68dd]::query::erase::Erased<[u8; 8usize]>>
  35:     0x7f1b8d78cdb0 - rustc_query_system[8b26caae5283da17]::query::plumbing::try_execute_query::<rustc_query_impl[ecef4a4fa1cc3689]::DynamicConfig<rustc_query_system[8b26caae5283da17]::query::caches::VecCache<rustc_span[e043cedf16fd8748]::def_id::LocalDefId, rustc_middle[efc8e2d5742a68dd]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ecef4a4fa1cc3689]::plumbing::QueryCtxt, false>
  36:     0x7f1b8d78c98c - rustc_query_impl[ecef4a4fa1cc3689]::query_impl::typeck::get_query_non_incr::__rust_end_short_backtrace
  37:     0x7f1b8d78c120 - <rustc_middle[efc8e2d5742a68dd]::hir::map::Map>::par_body_owners::<rustc_hir_analysis[2f1fe9f85dc7c390]::check_crate::{closure#5}>::{closure#0}
  38:     0x7f1b8d78ac5e - rustc_hir_analysis[2f1fe9f85dc7c390]::check_crate
  39:     0x7f1b8dffb5d3 - rustc_interface[e88069c12facd435]::passes::analysis
  40:     0x7f1b8dffb229 - rustc_query_impl[ecef4a4fa1cc3689]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ecef4a4fa1cc3689]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[efc8e2d5742a68dd]::query::erase::Erased<[u8; 1usize]>>
  41:     0x7f1b8e43afe5 - rustc_query_system[8b26caae5283da17]::query::plumbing::try_execute_query::<rustc_query_impl[ecef4a4fa1cc3689]::DynamicConfig<rustc_query_system[8b26caae5283da17]::query::caches::SingleCache<rustc_middle[efc8e2d5742a68dd]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[ecef4a4fa1cc3689]::plumbing::QueryCtxt, false>
  42:     0x7f1b8e43ad49 - rustc_query_impl[ecef4a4fa1cc3689]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
  43:     0x7f1b8e444695 - rustc_interface[e88069c12facd435]::interface::run_compiler::<core[db7e23408f407db6]::result::Result<(), rustc_span[e043cedf16fd8748]::ErrorGuaranteed>, rustc_driver_impl[d317596fd5f90102]::run_compiler::{closure#0}>::{closure#0}
  44:     0x7f1b8e5c5ad8 - std[2308076c1424b998]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[e88069c12facd435]::util::run_in_thread_with_globals<rustc_interface[e88069c12facd435]::util::run_in_thread_pool_with_globals<rustc_interface[e88069c12facd435]::interface::run_compiler<core[db7e23408f407db6]::result::Result<(), rustc_span[e043cedf16fd8748]::ErrorGuaranteed>, rustc_driver_impl[d317596fd5f90102]::run_compiler::{closure#0}>::{closure#0}, core[db7e23408f407db6]::result::Result<(), rustc_span[e043cedf16fd8748]::ErrorGuaranteed>>::{closure#0}, core[db7e23408f407db6]::result::Result<(), rustc_span[e043cedf16fd8748]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[db7e23408f407db6]::result::Result<(), rustc_span[e043cedf16fd8748]::ErrorGuaranteed>>
  45:     0x7f1b8e5c5904 - <<std[2308076c1424b998]::thread::Builder>::spawn_unchecked_<rustc_interface[e88069c12facd435]::util::run_in_thread_with_globals<rustc_interface[e88069c12facd435]::util::run_in_thread_pool_with_globals<rustc_interface[e88069c12facd435]::interface::run_compiler<core[db7e23408f407db6]::result::Result<(), rustc_span[e043cedf16fd8748]::ErrorGuaranteed>, rustc_driver_impl[d317596fd5f90102]::run_compiler::{closure#0}>::{closure#0}, core[db7e23408f407db6]::result::Result<(), rustc_span[e043cedf16fd8748]::ErrorGuaranteed>>::{closure#0}, core[db7e23408f407db6]::result::Result<(), rustc_span[e043cedf16fd8748]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[db7e23408f407db6]::result::Result<(), rustc_span[e043cedf16fd8748]::ErrorGuaranteed>>::{closure#1} as core[db7e23408f407db6]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  46:     0x7f1b8f6631e5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbe12538a3d7e111d
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/alloc/src/boxed.rs:2016:9
  47:     0x7f1b8f6631e5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h306728bac30291a0
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/alloc/src/boxed.rs:2016:9
  48:     0x7f1b8f6631e5 - std::sys::pal::unix::thread::Thread::new::thread_start::hec142a176366d167
                               at /rustc/ee9c7c940c07d8b67c9a6b2ec930db70dcd23a46/library/std/src/sys/pal/unix/thread.rs:108:17
  49:     0x7f1b894aa9eb - <unknown>
  50:     0x7f1b8952e7cc - <unknown>
  51:                0x0 - <unknown>

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 1.78.0-nightly (ee9c7c940 2024-02-14) running on x86_64-unknown-linux-gnu

query stack during panic:
#0 [typeck] type-checking `main`
#1 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 10 previous errors; 1 warning emitted

Some errors have detailed explanations: E0107, E0121, E0191, E0277, E0658.
For more information about an error, try `rustc --explain E0107`.

The text was updated successfully, but these errors were encountered:

darklyspaced · 2024-02-21T14:39:14Z

regressed from stable; bisected to #120847 cc @oli-obk

matthiaskrgr added 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. C-bug Category: This is a bug. labels Feb 15, 2024

rustbot added the needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. label Feb 15, 2024

jieyouxu added A-inference Area: Type inference S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue and removed needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. labels Feb 15, 2024

cushionbadak mentioned this issue Apr 5, 2024

ICE: relating different kinds: {const error}: &'static str KeyNil #123457

Closed

matthiaskrgr added the S-bug-has-test Status: This bug is tracked inside the repo by a `known-bug` test. label Apr 15, 2024

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

ICE: relating different kinds #121134

ICE: relating different kinds #121134

matthiaskrgr commented Feb 15, 2024

darklyspaced commented Feb 21, 2024

ICE: relating different kinds #121134

ICE: relating different kinds #121134

Comments

matthiaskrgr commented Feb 15, 2024

darklyspaced commented Feb 21, 2024