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: Inconsistent rustc_transmute::is_transmutable(...) result, got Yes #110467

Closed
matthiaskrgr opened this issue Apr 17, 2023 · 4 comments · Fixed by #110510
Closed

ICE: Inconsistent rustc_transmute::is_transmutable(...) result, got Yes #110467

matthiaskrgr opened this issue Apr 17, 2023 · 4 comments · Fixed by #110510
Assignees
@bryangarza
Labels
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.

Comments

@matthiaskrgr
Copy link
Member

matthiaskrgr commented Apr 17, 2023 •
edited by rustbot

Code

use std::mem::BikeshedIntrinsicFrom;
pub struct Context;

pub fn is_maybe_transmutable<Src, Dst>()
where
    Dst: BikeshedIntrinsicFrom<Src, Context>,
{
}

fn should_pad_explicitly_packed_field<T>() {
    is_maybe_transmutable::<(), ()>();
}

Meta

rustc --version --verbose:

rustc 1.71.0-nightly (31656e729 2023-04-17)
binary: rustc
commit-hash: 31656e7295ebd5f2f6597f10c011e2ac4ba3ef39
commit-date: 2023-04-17
host: x86_64-unknown-linux-gnu
release: 1.71.0-nightly
LLVM version: 16.0.2

Error output

<output>
Backtrace 

error[E0601]: `main` function not found in crate `treereduce`
  --> treereduce.out:12:2
   |
12 | }
   |  ^ consider adding a `main` function to `treereduce.out`

error[E0658]: use of unstable library feature 'transmutability'
 --> treereduce.out:1:5
  |
1 | use std::mem::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

error[E0658]: use of unstable library feature 'transmutability'
 --> treereduce.out:6:10
  |
6 |     Dst: BikeshedIntrinsicFrom<Src, Context>,
  |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = 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

error: internal compiler error: compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs:2974:45: Inconsistent rustc_transmute::is_transmutable(...) result, got Yes
  --> treereduce.out:11:33
   |
11 |     is_maybe_transmutable::<(), ()>();
   |                                 ^^

thread 'rustc' panicked at 'Box<dyn Any>', /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/compiler/rustc_errors/src/lib.rs:994:33
stack backtrace:
   0:     0x7f6769d653c2 - std::backtrace_rs::backtrace::libunwind::trace::h12fb0181e6282928
                               at /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7f6769d653c2 - std::backtrace_rs::backtrace::trace_unsynchronized::hd58a23b488ab4414
                               at /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f6769d653c2 - std::sys_common::backtrace::_print_fmt::h1e92ee6e175ed435
                               at /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7f6769d653c2 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he25ddff8a40f4065
                               at /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7f6769dc95df - core::fmt::write::h2334c3311cfbc09f
                               at /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/library/core/src/fmt/mod.rs:1254:17
   5:     0x7f6769d58371 - std::io::Write::write_fmt::h32ceba1e85ba39af
                               at /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/library/std/src/io/mod.rs:1698:15
   6:     0x7f6769d651c5 - std::sys_common::backtrace::_print::headbc582bfe8f74f
                               at /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7f6769d651c5 - std::sys_common::backtrace::print::h9fbeedaf474e45ad
                               at /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7f6769d67e87 - std::panicking::default_hook::{{closure}}::hff4b7a4e67c75e45
   9:     0x7f6769d67c75 - std::panicking::default_hook::h2ca9686b025551a8
                               at /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/library/std/src/panicking.rs:288:9
  10:     0x7f676d031d45 - <rustc_driver_impl[19ce8278adc32abb]::DEFAULT_HOOK::{closure#0}::{closure#0} as core[ecd79567034e570c]::ops::function::FnOnce<(&core[ecd79567034e570c]::panic::panic_info::PanicInfo,)>>::call_once::{shim:vtable#0}
  11:     0x7f6769d685c5 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h97aef67d40dea969
                               at /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/library/alloc/src/boxed.rs:1987:9
  12:     0x7f6769d685c5 - std::panicking::rust_panic_with_hook::h8edf350457ba7c57
                               at /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/library/std/src/panicking.rs:695:13
  13:     0x7f676dc20cc1 - std[44a4f6cc0231f9b2]::panicking::begin_panic::<rustc_errors[c08719f1ef463e6f]::ExplicitBug>::{closure#0}
  14:     0x7f676dc0fe06 - std[44a4f6cc0231f9b2]::sys_common::backtrace::__rust_end_short_backtrace::<std[44a4f6cc0231f9b2]::panicking::begin_panic<rustc_errors[c08719f1ef463e6f]::ExplicitBug>::{closure#0}, !>
  15:     0x7f676dcc4636 - std[44a4f6cc0231f9b2]::panicking::begin_panic::<rustc_errors[c08719f1ef463e6f]::ExplicitBug>
  16:     0x7f676dbf76a0 - <rustc_errors[c08719f1ef463e6f]::HandlerInner>::span_bug::<rustc_span[bacfd568afc27ca7]::span_encoding::Span, &alloc[b29edc6afdbb639a]::string::String>
  17:     0x7f676dbf74d7 - <rustc_errors[c08719f1ef463e6f]::Handler>::span_bug::<rustc_span[bacfd568afc27ca7]::span_encoding::Span, &alloc[b29edc6afdbb639a]::string::String>
  18:     0x7f676dbbd7eb - rustc_middle[a098ebc07bc191ee]::util::bug::opt_span_bug_fmt::<rustc_span[bacfd568afc27ca7]::span_encoding::Span>::{closure#0}
  19:     0x7f676dbbd83a - rustc_middle[a098ebc07bc191ee]::ty::context::tls::with_opt::<rustc_middle[a098ebc07bc191ee]::util::bug::opt_span_bug_fmt<rustc_span[bacfd568afc27ca7]::span_encoding::Span>::{closure#0}, !>::{closure#0}
  20:     0x7f676dbb74a6 - rustc_middle[a098ebc07bc191ee]::ty::context::tls::with_context_opt::<rustc_middle[a098ebc07bc191ee]::ty::context::tls::with_opt<rustc_middle[a098ebc07bc191ee]::util::bug::opt_span_bug_fmt<rustc_span[bacfd568afc27ca7]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  21:     0x7f676dbb7444 - rustc_middle[a098ebc07bc191ee]::util::bug::span_bug_fmt::<rustc_span[bacfd568afc27ca7]::span_encoding::Span>
  22:     0x7f676dcbbdea - <rustc_infer[44d00952e7390d21]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[184e7675a95467cf]::traits::error_reporting::InferCtxtPrivExt>::get_safe_transmute_error_and_reason
  23:     0x7f676dcb4afa - <rustc_infer[44d00952e7390d21]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[184e7675a95467cf]::traits::error_reporting::TypeErrCtxtExt>::report_selection_error
  24:     0x7f676dcbe771 - <rustc_infer[44d00952e7390d21]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[184e7675a95467cf]::traits::error_reporting::InferCtxtPrivExt>::report_fulfillment_error
  25:     0x7f676dcb1854 - <rustc_infer[44d00952e7390d21]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[184e7675a95467cf]::traits::error_reporting::TypeErrCtxtExt>::report_fulfillment_errors
  26:     0x7f676b1ac6e1 - <rustc_hir_typeck[667a4ac438b3b5ea]::fn_ctxt::FnCtxt>::check_argument_types
  27:     0x7f676b19a468 - <rustc_hir_typeck[667a4ac438b3b5ea]::fn_ctxt::FnCtxt>::check_call
  28:     0x7f676b55eee0 - <rustc_hir_typeck[667a4ac438b3b5ea]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  29:     0x7f676b5a2ed0 - <rustc_hir_typeck[667a4ac438b3b5ea]::fn_ctxt::FnCtxt>::check_block_with_expected
  30:     0x7f676b55f877 - <rustc_hir_typeck[667a4ac438b3b5ea]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  31:     0x7f676b79609d - <rustc_hir_typeck[667a4ac438b3b5ea]::fn_ctxt::FnCtxt>::check_return_expr
  32:     0x7f676b78e10d - rustc_hir_typeck[667a4ac438b3b5ea]::check::check_fn
  33:     0x7f676b7757ce - rustc_hir_typeck[667a4ac438b3b5ea]::typeck
  34:     0x7f676b0fba29 - rustc_query_system[8013f3037cfe4f42]::query::plumbing::try_execute_query::<rustc_query_impl[d100f3cda631c9d2]::queries::typeck, rustc_query_impl[d100f3cda631c9d2]::plumbing::QueryCtxt>
  35:     0x7f676c7aa020 - rustc_data_structures[e3b057fee94cbb2e]::sync::par_for_each_in::<&[rustc_span[bacfd568afc27ca7]::def_id::LocalDefId], <rustc_middle[a098ebc07bc191ee]::hir::map::Map>::par_body_owners<rustc_hir_typeck[667a4ac438b3b5ea]::typeck_item_bodies::{closure#0}>::{closure#0}>
  36:     0x7f676c7a9dde - rustc_hir_typeck[667a4ac438b3b5ea]::typeck_item_bodies
  37:     0x7f676c826f17 - rustc_query_system[8013f3037cfe4f42]::query::plumbing::try_execute_query::<rustc_query_impl[d100f3cda631c9d2]::queries::typeck_item_bodies, rustc_query_impl[d100f3cda631c9d2]::plumbing::QueryCtxt>
  38:     0x7f676c826c2c - <rustc_query_impl[d100f3cda631c9d2]::Queries as rustc_middle[a098ebc07bc191ee]::ty::query::QueryEngine>::typeck_item_bodies
  39:     0x7f676c400f3c - rustc_hir_analysis[18d38fd7f32cb571]::check_crate
  40:     0x7f676c3fad1d - rustc_interface[e2b40ad4e6aa2c15]::passes::analysis
  41:     0x7f676c79a562 - rustc_query_system[8013f3037cfe4f42]::query::plumbing::try_execute_query::<rustc_query_impl[d100f3cda631c9d2]::queries::analysis, rustc_query_impl[d100f3cda631c9d2]::plumbing::QueryCtxt>
  42:     0x7f676c79a270 - <rustc_query_impl[d100f3cda631c9d2]::Queries as rustc_middle[a098ebc07bc191ee]::ty::query::QueryEngine>::analysis
  43:     0x7f676c65e8e6 - <std[44a4f6cc0231f9b2]::thread::local::LocalKey<core[ecd79567034e570c]::cell::Cell<*const ()>>>::with::<rustc_middle[a098ebc07bc191ee]::ty::context::tls::enter_context<<rustc_middle[a098ebc07bc191ee]::ty::context::GlobalCtxt>::enter<rustc_driver_impl[19ce8278adc32abb]::run_compiler::{closure#1}::{closure#2}::{closure#4}, core[ecd79567034e570c]::result::Result<(), rustc_span[bacfd568afc27ca7]::ErrorGuaranteed>>::{closure#0}, core[ecd79567034e570c]::result::Result<(), rustc_span[bacfd568afc27ca7]::ErrorGuaranteed>>::{closure#0}, core[ecd79567034e570c]::result::Result<(), rustc_span[bacfd568afc27ca7]::ErrorGuaranteed>>
  44:     0x7f676c21da67 - <rustc_interface[e2b40ad4e6aa2c15]::interface::Compiler>::enter::<rustc_driver_impl[19ce8278adc32abb]::run_compiler::{closure#1}::{closure#2}, core[ecd79567034e570c]::result::Result<core[ecd79567034e570c]::option::Option<rustc_interface[e2b40ad4e6aa2c15]::queries::Linker>, rustc_span[bacfd568afc27ca7]::ErrorGuaranteed>>
  45:     0x7f676c217b4f - rustc_span[bacfd568afc27ca7]::set_source_map::<core[ecd79567034e570c]::result::Result<(), rustc_span[bacfd568afc27ca7]::ErrorGuaranteed>, rustc_interface[e2b40ad4e6aa2c15]::interface::run_compiler<core[ecd79567034e570c]::result::Result<(), rustc_span[bacfd568afc27ca7]::ErrorGuaranteed>, rustc_driver_impl[19ce8278adc32abb]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
  46:     0x7f676c217768 - <scoped_tls[41028e5492da81b4]::ScopedKey<rustc_span[bacfd568afc27ca7]::SessionGlobals>>::set::<rustc_interface[e2b40ad4e6aa2c15]::interface::run_compiler<core[ecd79567034e570c]::result::Result<(), rustc_span[bacfd568afc27ca7]::ErrorGuaranteed>, rustc_driver_impl[19ce8278adc32abb]::run_compiler::{closure#1}>::{closure#0}, core[ecd79567034e570c]::result::Result<(), rustc_span[bacfd568afc27ca7]::ErrorGuaranteed>>
  47:     0x7f676c216d7b - std[44a4f6cc0231f9b2]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[e2b40ad4e6aa2c15]::util::run_in_thread_pool_with_globals<rustc_interface[e2b40ad4e6aa2c15]::interface::run_compiler<core[ecd79567034e570c]::result::Result<(), rustc_span[bacfd568afc27ca7]::ErrorGuaranteed>, rustc_driver_impl[19ce8278adc32abb]::run_compiler::{closure#1}>::{closure#0}, core[ecd79567034e570c]::result::Result<(), rustc_span[bacfd568afc27ca7]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[ecd79567034e570c]::result::Result<(), rustc_span[bacfd568afc27ca7]::ErrorGuaranteed>>
  48:     0x7f676c8f9161 - <<std[44a4f6cc0231f9b2]::thread::Builder>::spawn_unchecked_<rustc_interface[e2b40ad4e6aa2c15]::util::run_in_thread_pool_with_globals<rustc_interface[e2b40ad4e6aa2c15]::interface::run_compiler<core[ecd79567034e570c]::result::Result<(), rustc_span[bacfd568afc27ca7]::ErrorGuaranteed>, rustc_driver_impl[19ce8278adc32abb]::run_compiler::{closure#1}>::{closure#0}, core[ecd79567034e570c]::result::Result<(), rustc_span[bacfd568afc27ca7]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[ecd79567034e570c]::result::Result<(), rustc_span[bacfd568afc27ca7]::ErrorGuaranteed>>::{closure#1} as core[ecd79567034e570c]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  49:     0x7f6769d72a85 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf699fb692a362d4f
                               at /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/library/alloc/src/boxed.rs:1973:9
  50:     0x7f6769d72a85 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5785a67d99b09647
                               at /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/library/alloc/src/boxed.rs:1973:9
  51:     0x7f6769d72a85 - std::sys::unix::thread::Thread::new::thread_start::hd8d3f6147809d6cf
                               at /rustc/31656e7295ebd5f2f6597f10c011e2ac4ba3ef39/library/std/src/sys/unix/thread.rs:108:17
  52:     0x7f6769b0dbb5 - <unknown>
  53:     0x7f6769b8fd90 - <unknown>
  54:                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 1.71.0-nightly (31656e729 2023-04-17) running on x86_64-unknown-linux-gnu

query stack during panic:
#0 [typeck] type-checking `should_pad_explicitly_packed_field`
#1 [typeck_item_bodies] type-checking all item bodies
#2 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 4 previous errors

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

@matthiaskrgr 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 Apr 17, 2023
@rustbot
Copy link
Collaborator

rustbot commented Apr 17, 2023

Error: Parsing assign command in comment failed: ...' assign' | error: specify user to assign to at >| ''...

Please file an issue on GitHub at triagebot if there's a problem with this bot, or reach out on #t-infra on Zulip.

@matthiaskrgr
Copy link
Member Author

searched toolchains nightly-2023-04-13 through nightly-2023-04-17

Regression in nightly-2023-04-15

searched toolchains a41fc00 through 84dd17b

Regression in 71ef9ec

Attempting to search unrolled perf builds
Found commits ["47bce130", "9131dd43", "679ba6a3", "a9effb4a", "70095e25", "e04176ce", "b86be3df", "121d0f42", "bb9ac047"]

Regression in rust-lang-ci@121d0f4

#109800 cc @bryangarza

@bryangarza
Copy link
Contributor

@rustbot claim

@bryangarza
Copy link
Contributor

Thanks, I'll take a look at this

@bryangarza bryangarza mentioned this issue Apr 18, 2023
Merged
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this issue Apr 19, 2023
@matthiaskrgr
Rollup merge of rust-lang#110510 - bryangarza:issue-110467-safe-trans…
fdd2f4b 
…mute, r=compiler-errors

Fix ICE for transmutability in candidate assembly

Don't skip transmutability check just because there may be generics in the ParamEnv.

Fixes rust-lang#110467
@bors bors closed this as completed in 238756e Apr 19, 2023
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees

@bryangarza bryangarza

Labels
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.
Projects
None yet
Milestone
No milestone
Development

Successfully merging a pull request may close this issue.

Fix ICE for transmutability in candidate assembly bryangarza/rust
3 participants
@matthiaskrgr @bryangarza @rustbot