ICE: layout: 🌲 : Size != Size · Issue #126460 · rust-lang/rust (original) (raw)

warning: unused import: `Assume`
 --> /tmp/icemaker_global_tempdir.YrqnXGtTwvMr/rustc_testrunner_tmpdir_reporting.h955EYnc6qOm/mvce.rs:2:20
  |
2 |     use std::mem::{Assume, BikeshedIntrinsicFrom};
  |                    ^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default

error[E0601]: `main` function not found in crate `mvce`
  --> /tmp/icemaker_global_tempdir.YrqnXGtTwvMr/rustc_testrunner_tmpdir_reporting.h955EYnc6qOm/mvce.rs:19:2
   |
19 | }
   |  ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.YrqnXGtTwvMr/rustc_testrunner_tmpdir_reporting.h955EYnc6qOm/mvce.rs`

error[E0658]: use of unstable library feature 'transmutability'
 --> /tmp/icemaker_global_tempdir.YrqnXGtTwvMr/rustc_testrunner_tmpdir_reporting.h955EYnc6qOm/mvce.rs:2:20
  |
2 |     use std::mem::{Assume, BikeshedIntrinsicFrom};
  |                    ^^^^^^
  |
  = note: see issue #99571 <https://github.com/rust-lang/rust/issues/99571> for more information
  = help: add `#![feature(transmutability)]` to the crate attributes to enable
  = note: this compiler was built on 2024-06-14; consider upgrading it if it is out of date

error[E0658]: use of unstable library feature 'transmutability'
 --> /tmp/icemaker_global_tempdir.YrqnXGtTwvMr/rustc_testrunner_tmpdir_reporting.h955EYnc6qOm/mvce.rs:2:28
  |
2 |     use std::mem::{Assume, BikeshedIntrinsicFrom};
  |                            ^^^^^^^^^^^^^^^^^^^^^
  |
  = note: see issue #99571 <https://github.com/rust-lang/rust/issues/99571> for more information
  = help: add `#![feature(transmutability)]` to the crate attributes to enable
  = note: this compiler was built on 2024-06-14; consider upgrading it if it is out of date

error[E0658]: use of unstable library feature 'transmutability'
 --> /tmp/icemaker_global_tempdir.YrqnXGtTwvMr/rustc_testrunner_tmpdir_reporting.h955EYnc6qOm/mvce.rs:6:14
  |
6 |         Dst: BikeshedIntrinsicFrom<Src>,
  |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: see issue #99571 <https://github.com/rust-lang/rust/issues/99571> for more information
  = help: add `#![feature(transmutability)]` to the crate attributes to enable
  = note: this compiler was built on 2024-06-14; consider upgrading it if it is out of date

thread 'rustc' panicked at compiler/rustc_transmute/src/layout/tree.rs:363:21:
assertion `left == right` failed
  left: Size(16 bytes)
 right: Size(0 bytes)
stack backtrace:
   0:     0x738fb540fae5 - std::backtrace_rs::backtrace::libunwind::trace::h66a8deddd31b55ec
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
   1:     0x738fb540fae5 - std::backtrace_rs::backtrace::trace_unsynchronized::h9b8c457e5846198e
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x738fb540fae5 - std::sys_common::backtrace::_print_fmt::h9692bfa044125fab
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/std/src/sys_common/backtrace.rs:68:5
   3:     0x738fb540fae5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h8be930e4f4324fc1
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x738fb546077b - core::fmt::rt::Argument::fmt::h0147d2f1e77a5224
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/core/src/fmt/rt.rs:165:63
   5:     0x738fb546077b - core::fmt::write::h5bef47ac6c98803f
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/core/src/fmt/mod.rs:1168:21
   6:     0x738fb54046bf - std::io::Write::write_fmt::h7707c1b0ed1f3ef8
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/std/src/io/mod.rs:1835:15
   7:     0x738fb540f8be - std::sys_common::backtrace::_print::h79275c8f6c586b21
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x738fb540f8be - std::sys_common::backtrace::print::hd651502311c26a72
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x738fb54122f9 - std::panicking::default_hook::{{closure}}::hb66aeb12a772476e
  10:     0x738fb541209c - std::panicking::default_hook::hf6dbbcad84c9cd63
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/std/src/panicking.rs:292:9
  11:     0x738fb1cb38d0 - std[14120762d8ee0505]::panicking::update_hook::<alloc[303d001d1e4a23bb]::boxed::Box<rustc_driver_impl[2eb8f42bfae24b55]::install_ice_hook::{closure#0}>>::{closure#0}
  12:     0x738fb5412bff - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>:🤙:h4b173c3d0381eea2
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/alloc/src/boxed.rs:2076:9
  13:     0x738fb5412bff - std::panicking::rust_panic_with_hook::h2897e2d711d501a3
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/std/src/panicking.rs:801:13
  14:     0x738fb5412827 - std::panicking::begin_panic_handler::{{closure}}::he291252945efa2fd
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/std/src/panicking.rs:667:13
  15:     0x738fb540ffa9 - std::sys_common::backtrace::__rust_end_short_backtrace::h9eb35470c0d5421a
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/std/src/sys_common/backtrace.rs:171:18
  16:     0x738fb54124d4 - rust_begin_unwind
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/std/src/panicking.rs:658:5
  17:     0x738fb545cd33 - core::panicking::panic_fmt::h0c4e40ffed79f183
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/core/src/panicking.rs:74:14
  18:     0x738fb545d23e - core::panicking::assert_failed_inner::h4c5bb24f7c7d94d6
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/core/src/panicking.rs:410:17
  19:     0x738fb2872743 - core[f72d5f6884de128e]::panicking::assert_failed::<rustc_abi[83820ffeb3f18086]::Size, rustc_abi[83820ffeb3f18086]::Size>
  20:     0x738fb288727a - <rustc_transmute[e92ab8e1bc88ca7b]::layout::tree::Tree<rustc_transmute[e92ab8e1bc88ca7b]::layout::rustc::Def, rustc_transmute[e92ab8e1bc88ca7b]::layout::rustc::Ref>>::from_enum
  21:     0x738fb288a5e0 - <rustc_transmute[e92ab8e1bc88ca7b]::rustc::TransmuteTypeEnv>::is_transmutable
  22:     0x738fb38a83f1 - <rustc_trait_selection[140929a543f288fa]::traits::select::SelectionContext>::confirm_candidate
  23:     0x738fb38b336c - <rustc_trait_selection[140929a543f288fa]::traits::select::SelectionContext>::evaluate_candidate::{closure#0}::{closure#0}
  24:     0x738fb3432518 - <rustc_trait_selection[140929a543f288fa]::traits::select::SelectionContext>::evaluate_predicate_recursively::{closure#0}::{closure#0}
  25:     0x738fb342cc44 - rustc_traits[d1080c708c588edf]::evaluate_obligation::evaluate_obligation
  26:     0x738fb342c3e9 - rustc_query_impl[bf2ac6a6ab127c0b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[bf2ac6a6ab127c0b]::query_impl::evaluate_obligation::dynamic_query::{closure#2}::{closure#0}, rustc_middle[9ad05302be999b0c]::query::erase::Erased<[u8; 2usize]>>
  27:     0x738fb342b952 - rustc_query_system[ef35600543bbfea8]::query::plumbing::try_execute_query::<rustc_query_impl[bf2ac6a6ab127c0b]::DynamicConfig<rustc_query_system[ef35600543bbfea8]::query::caches::DefaultCache<rustc_type_ir[d4d4d4b06d59bf13]::canonical::Canonical<rustc_middle[9ad05302be999b0c]::ty::context::TyCtxt, rustc_middle[9ad05302be999b0c]::ty::ParamEnvAnd<rustc_middle[9ad05302be999b0c]::ty::predicate::Predicate>>, rustc_middle[9ad05302be999b0c]::query::erase::Erased<[u8; 2usize]>>, false, false, false>, rustc_query_impl[bf2ac6a6ab127c0b]::plumbing::QueryCtxt, false>
  28:     0x738fb342b5a4 - rustc_query_impl[bf2ac6a6ab127c0b]::query_impl::evaluate_obligation::get_query_non_incr::__rust_end_short_backtrace
  29:     0x738fafdcb2f3 - <rustc_trait_selection[140929a543f288fa]::traits::fulfill::FulfillProcessor as rustc_data_structures[b6a8240b22e27d5b]::obligation_forest::ObligationProcessor>::process_obligation
  30:     0x738fb3008cc9 - <rustc_data_structures[b6a8240b22e27d5b]::obligation_forest::ObligationForest<rustc_trait_selection[140929a543f288fa]::traits::fulfill::PendingPredicateObligation>>::process_obligations::<rustc_trait_selection[140929a543f288fa]::traits::fulfill::FulfillProcessor>
  31:     0x738faff8e3a9 - <rustc_hir_typeck[3a4328f626f4967a]::fn_ctxt::FnCtxt>::confirm_builtin_call
  32:     0x738fb3c48018 - <rustc_hir_typeck[3a4328f626f4967a]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  33:     0x738fb3c42201 - <rustc_hir_typeck[3a4328f626f4967a]::fn_ctxt::FnCtxt>::check_block_with_expected
  34:     0x738fb3c48b57 - <rustc_hir_typeck[3a4328f626f4967a]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  35:     0x738fb31ae6ee - rustc_hir_typeck[3a4328f626f4967a]::check::check_fn
  36:     0x738fb31a4efe - rustc_hir_typeck[3a4328f626f4967a]::typeck
  37:     0x738fb31a497b - rustc_query_impl[bf2ac6a6ab127c0b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[bf2ac6a6ab127c0b]::query_impl::typeck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[9ad05302be999b0c]::query::erase::Erased<[u8; 8usize]>>
  38:     0x738fb3327f6e - rustc_query_system[ef35600543bbfea8]::query::plumbing::try_execute_query::<rustc_query_impl[bf2ac6a6ab127c0b]::DynamicConfig<rustc_query_system[ef35600543bbfea8]::query::caches::VecCache<rustc_span[b896b2121b1330a3]::def_id::LocalDefId, rustc_middle[9ad05302be999b0c]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[bf2ac6a6ab127c0b]::plumbing::QueryCtxt, false>
  39:     0x738fb3326a55 - rustc_query_impl[bf2ac6a6ab127c0b]::query_impl::typeck::get_query_non_incr::__rust_end_short_backtrace
  40:     0x738fb332668b - <rustc_middle[9ad05302be999b0c]::hir::map::Map>::par_body_owners::<rustc_hir_analysis[6ff8012e04425284]::check_crate::{closure#4}>::{closure#0}
  41:     0x738fb3325147 - rustc_hir_analysis[6ff8012e04425284]::check_crate
  42:     0x738fb3a68587 - rustc_interface[5734b4e3a95409b6]::passes::analysis
  43:     0x738fb3a680c7 - rustc_query_impl[bf2ac6a6ab127c0b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[bf2ac6a6ab127c0b]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[9ad05302be999b0c]::query::erase::Erased<[u8; 1usize]>>
  44:     0x738fb3e498a5 - rustc_query_system[ef35600543bbfea8]::query::plumbing::try_execute_query::<rustc_query_impl[bf2ac6a6ab127c0b]::DynamicConfig<rustc_query_system[ef35600543bbfea8]::query::caches::SingleCache<rustc_middle[9ad05302be999b0c]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[bf2ac6a6ab127c0b]::plumbing::QueryCtxt, false>
  45:     0x738fb3e4960f - rustc_query_impl[bf2ac6a6ab127c0b]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
  46:     0x738fb3ce6bd2 - rustc_interface[5734b4e3a95409b6]::interface::run_compiler::<core[f72d5f6884de128e]::result::Result<(), rustc_span[b896b2121b1330a3]::ErrorGuaranteed>, rustc_driver_impl[2eb8f42bfae24b55]::run_compiler::{closure#0}>::{closure#1}
  47:     0x738fb3d05089 - std[14120762d8ee0505]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[5734b4e3a95409b6]::util::run_in_thread_with_globals<rustc_interface[5734b4e3a95409b6]::util::run_in_thread_pool_with_globals<rustc_interface[5734b4e3a95409b6]::interface::run_compiler<core[f72d5f6884de128e]::result::Result<(), rustc_span[b896b2121b1330a3]::ErrorGuaranteed>, rustc_driver_impl[2eb8f42bfae24b55]::run_compiler::{closure#0}>::{closure#1}, core[f72d5f6884de128e]::result::Result<(), rustc_span[b896b2121b1330a3]::ErrorGuaranteed>>::{closure#0}, core[f72d5f6884de128e]::result::Result<(), rustc_span[b896b2121b1330a3]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[f72d5f6884de128e]::result::Result<(), rustc_span[b896b2121b1330a3]::ErrorGuaranteed>>
  48:     0x738fb3d04e3a - <<std[14120762d8ee0505]::thread::Builder>::spawn_unchecked_<rustc_interface[5734b4e3a95409b6]::util::run_in_thread_with_globals<rustc_interface[5734b4e3a95409b6]::util::run_in_thread_pool_with_globals<rustc_interface[5734b4e3a95409b6]::interface::run_compiler<core[f72d5f6884de128e]::result::Result<(), rustc_span[b896b2121b1330a3]::ErrorGuaranteed>, rustc_driver_impl[2eb8f42bfae24b55]::run_compiler::{closure#0}>::{closure#1}, core[f72d5f6884de128e]::result::Result<(), rustc_span[b896b2121b1330a3]::ErrorGuaranteed>>::{closure#0}, core[f72d5f6884de128e]::result::Result<(), rustc_span[b896b2121b1330a3]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[f72d5f6884de128e]::result::Result<(), rustc_span[b896b2121b1330a3]::ErrorGuaranteed>>::{closure#2} as core[f72d5f6884de128e]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  49:     0x738fb541ca7b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb25f0033d53ed2e6
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/alloc/src/boxed.rs:2062:9
  50:     0x738fb541ca7b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbb7141f8d9bd3912
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/alloc/src/boxed.rs:2062:9
  51:     0x738fb541ca7b - std::sys::pal::unix::thread::Thread:🆕:thread_start::hd182649926e2b713
                               at /rustc/0ef0dd24510b52da980889546fcd15254dc56a23/library/std/src/sys/pal/unix/thread.rs:108:17
  52:     0x738fae8a6ded - <unknown>
  53:     0x738fae92a0dc - <unknown>
  54:                0x0 - <unknown>

error: 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: please make sure that you have updated to the latest nightly

note: rustc 1.81.0-nightly (0ef0dd245 2024-06-14) running on x86_64-unknown-linux-gnu

query stack during panic:
#0 [evaluate_obligation] evaluating trait selection obligation `(): core::mem::transmutability::BikeshedIntrinsicFrom<distant_void::DistantVoid, core::mem::transmutability::Assume { alignment: false, lifetimes: false, safety: false, validity: false }>`
#1 [typeck] type-checking `distant_void`
end of query stack
error: aborting due to 4 previous errors; 1 warning emitted

Some errors have detailed explanations: E0601, E0658.
For more information about an error, try `rustc --explain E0601`.