dyn * ICE when used in constant and static

[DutchGhost]

Code

#![feature(dyn_star)]

const _: dyn* Send = &();
// static V: dyn* Send = Sync = &();

fn main() {}

Meta

rustc --version --verbose:

1.68.0 nightly

Error output

thread '<unnamed>' panicked at 'not implemented', compiler/rustc_const_eval/src/transform/check_consts/check.rs:559:17

Backtrace

thread '<unnamed>' panicked at 'not implemented', compiler/rustc_const_eval/src/transform/check_consts/check.rs:559:17
stack backtrace:
   0:     0x7f10b0a657da - std::backtrace_rs::backtrace::libunwind::trace::hc0c2c1a0c2b552f0
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7f10b0a657da - std::backtrace_rs::backtrace::trace_unsynchronized::h4e8b186ae68c61b7
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f10b0a657da - std::sys_common::backtrace::_print_fmt::h61310913953cf43d
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7f10b0a657da - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h89f946132e4203eb
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7f10b0ac82ee - core::fmt::write::h6740f7d1bd8f4b51
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/core/src/fmt/mod.rs:1208:17
   5:     0x7f10b0a55b65 - std::io::Write::write_fmt::h51db6b277caf7e91
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/std/src/io/mod.rs:1682:15
   6:     0x7f10b0a655a5 - std::sys_common::backtrace::_print::hc6a5f536e733a76e
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7f10b0a655a5 - std::sys_common::backtrace::print::h8631c4f73218bc62
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7f10b0a682ef - std::panicking::default_hook::{{closure}}::h3c780e5d293174cd
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/std/src/panicking.rs:267:22
   9:     0x7f10b0a6802b - std::panicking::default_hook::h309bb49de1e99fcb
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/std/src/panicking.rs:286:9
  10:     0x7f10b0a68b0c - std::panicking::rust_panic_with_hook::h6f5df507638c6c1f
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/std/src/panicking.rs:688:13
  11:     0x7f10b0a68862 - std::panicking::begin_panic_handler::{{closure}}::ha60489d3188eec52
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/std/src/panicking.rs:577:13
  12:     0x7f10b0a65c8c - std::sys_common::backtrace::__rust_end_short_backtrace::h3bdce2444d5d7dd7
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/std/src/sys_common/backtrace.rs:137:18
  13:     0x7f10b0a685b2 - rust_begin_unwind
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/std/src/panicking.rs:575:5
  14:     0x7f10b0ac4cd3 - core::panicking::panic_fmt::ha170bd6a13f0b251
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/core/src/panicking.rs:64:14
  15:     0x7f10b0ac4dad - core::panicking::panic::h54406099be7955b9
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/core/src/panicking.rs:111:5
  16:     0x7f10b2a4ae93 - <rustc_const_eval[155d61414e856197]::transform::check_consts::check::Checker as rustc_middle[c84b646c886cb2de]::mir::visit::Visitor>::visit_basic_block_data
  17:     0x7f10b2a485ab - <rustc_const_eval[155d61414e856197]::transform::check_consts::check::Checker>::check_body
  18:     0x7f10b2a45849 - rustc_mir_transform[9e86614eed3f7177]::mir_const_qualif
  19:     0x7f10b2a43e2b - rustc_query_system[877e705e9e61e210]::query::plumbing::try_execute_query::<rustc_query_impl[3eab8bca7a7ef5a]::plumbing::QueryCtxt, rustc_query_system[877e705e9e61e210]::query::caches::DefaultCache<rustc_span[543f1a391932d6c1]::def_id::DefId, rustc_middle[c84b646c886cb2de]::mir::query::ConstQualifs>>
  20:     0x7f10b2a40a12 - rustc_mir_transform[9e86614eed3f7177]::mir_promoted
  21:     0x7f10b2a3f2ca - rustc_query_system[877e705e9e61e210]::query::plumbing::try_execute_query::<rustc_query_impl[3eab8bca7a7ef5a]::plumbing::QueryCtxt, rustc_query_system[877e705e9e61e210]::query::caches::DefaultCache<rustc_middle[c84b646c886cb2de]::ty::WithOptConstParam<rustc_span[543f1a391932d6c1]::def_id::LocalDefId>, (&rustc_data_structures[453c30afbb1f2887]::steal::Steal<rustc_middle[c84b646c886cb2de]::mir::Body>, &rustc_data_structures[453c30afbb1f2887]::steal::Steal<rustc_index[c2e17390a6d6bf42]::vec::IndexVec<rustc_middle[c84b646c886cb2de]::mir::Promoted, rustc_middle[c84b646c886cb2de]::mir::Body>>)>>
  22:     0x7f10b2a3db1f - rustc_borrowck[862124a5633d3c1]::mir_borrowck
  23:     0x7f10b2cf9ece - rustc_query_system[877e705e9e61e210]::query::plumbing::try_execute_query::<rustc_query_impl[3eab8bca7a7ef5a]::plumbing::QueryCtxt, rustc_query_system[877e705e9e61e210]::query::caches::VecCache<rustc_span[543f1a391932d6c1]::def_id::LocalDefId, &rustc_middle[c84b646c886cb2de]::mir::query::BorrowCheckResult>>
  24:     0x7f10b2277508 - rustc_data_structures[453c30afbb1f2887]::sync::par_for_each_in::<&[rustc_span[543f1a391932d6c1]::def_id::LocalDefId], <rustc_middle[c84b646c886cb2de]::hir::map::Map>::par_body_owners<rustc_interface[a124a45dc0066a02]::passes::analysis::{closure#2}::{closure#0}>::{closure#0}>
  25:     0x7f10b2275733 - <rustc_session[c401c677e308d124]::session::Session>::time::<(), rustc_interface[a124a45dc0066a02]::passes::analysis::{closure#2}>
  26:     0x7f10b2273af7 - rustc_interface[a124a45dc0066a02]::passes::analysis
  27:     0x7f10b350fd07 - rustc_query_system[877e705e9e61e210]::query::plumbing::try_execute_query::<rustc_query_impl[3eab8bca7a7ef5a]::plumbing::QueryCtxt, rustc_query_system[877e705e9e61e210]::query::caches::DefaultCache<(), core[d5acfb63a27dd533]::result::Result<(), rustc_errors[f10cbebfeb15a206]::ErrorGuaranteed>>>
  28:     0x7f10b350fa00 - rustc_query_system[877e705e9e61e210]::query::plumbing::get_query::<rustc_query_impl[3eab8bca7a7ef5a]::queries::analysis, rustc_query_impl[3eab8bca7a7ef5a]::plumbing::QueryCtxt>
  29:     0x7f10b2f4d863 - <rustc_interface[a124a45dc0066a02]::passes::QueryContext>::enter::<rustc_driver[3259f56d7df430a3]::run_compiler::{closure#1}::{closure#2}::{closure#2}, core[d5acfb63a27dd533]::result::Result<(), rustc_errors[f10cbebfeb15a206]::ErrorGuaranteed>>
  30:     0x7f10b2f49c13 - <rustc_interface[a124a45dc0066a02]::interface::Compiler>::enter::<rustc_driver[3259f56d7df430a3]::run_compiler::{closure#1}::{closure#2}, core[d5acfb63a27dd533]::result::Result<core[d5acfb63a27dd533]::option::Option<rustc_interface[a124a45dc0066a02]::queries::Linker>, rustc_errors[f10cbebfeb15a206]::ErrorGuaranteed>>
  31:     0x7f10b2f44c78 - rustc_span[543f1a391932d6c1]::with_source_map::<core[d5acfb63a27dd533]::result::Result<(), rustc_errors[f10cbebfeb15a206]::ErrorGuaranteed>, rustc_interface[a124a45dc0066a02]::interface::run_compiler<core[d5acfb63a27dd533]::result::Result<(), rustc_errors[f10cbebfeb15a206]::ErrorGuaranteed>, rustc_driver[3259f56d7df430a3]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
  32:     0x7f10b2f44765 - <scoped_tls[f6bdf6b1b6fb927]::ScopedKey<rustc_span[543f1a391932d6c1]::SessionGlobals>>::set::<rustc_interface[a124a45dc0066a02]::interface::run_compiler<core[d5acfb63a27dd533]::result::Result<(), rustc_errors[f10cbebfeb15a206]::ErrorGuaranteed>, rustc_driver[3259f56d7df430a3]::run_compiler::{closure#1}>::{closure#0}, core[d5acfb63a27dd533]::result::Result<(), rustc_errors[f10cbebfeb15a206]::ErrorGuaranteed>>
  33:     0x7f10b2f43d52 - std[9df5139a5b73e852]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[a124a45dc0066a02]::util::run_in_thread_pool_with_globals<rustc_interface[a124a45dc0066a02]::interface::run_compiler<core[d5acfb63a27dd533]::result::Result<(), rustc_errors[f10cbebfeb15a206]::ErrorGuaranteed>, rustc_driver[3259f56d7df430a3]::run_compiler::{closure#1}>::{closure#0}, core[d5acfb63a27dd533]::result::Result<(), rustc_errors[f10cbebfeb15a206]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[d5acfb63a27dd533]::result::Result<(), rustc_errors[f10cbebfeb15a206]::ErrorGuaranteed>>
  34:     0x7f10b360a78e - <<std[9df5139a5b73e852]::thread::Builder>::spawn_unchecked_<rustc_interface[a124a45dc0066a02]::util::run_in_thread_pool_with_globals<rustc_interface[a124a45dc0066a02]::interface::run_compiler<core[d5acfb63a27dd533]::result::Result<(), rustc_errors[f10cbebfeb15a206]::ErrorGuaranteed>, rustc_driver[3259f56d7df430a3]::run_compiler::{closure#1}>::{closure#0}, core[d5acfb63a27dd533]::result::Result<(), rustc_errors[f10cbebfeb15a206]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[d5acfb63a27dd533]::result::Result<(), rustc_errors[f10cbebfeb15a206]::ErrorGuaranteed>>::{closure#1} as core[d5acfb63a27dd533]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  35:     0x7f10b4b1bb53 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf6d3bae8142574a3
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/alloc/src/boxed.rs:2000:9
  36:     0x7f10b4b1bb53 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::haf28aec72a86160e
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/alloc/src/boxed.rs:2000:9
  37:     0x7f10b4b1bb53 - std::sys::unix::thread::Thread::new::thread_start::hdd5296eb823f2d90
                               at /rustc/ec56537c4325ce5b798fc3628cbdd48ba4949ae5/library/std/src/sys/unix/thread.rs:108:17
  38:     0x7f10b0937609 - start_thread
  39:     0x7f10b085a133 - clone
  40:                0x0 - <unknown>
warning: `playground` (bin "playground") generated 1 warning
error: could not compile `playground`; 1 warning emitted

[jruderman]

Regression in nightly-2022-10-16 from #101832 (@compiler-errors)

Bisection method

I ran:

cargo-bisect-rustc --preserve --start 2020-01-01 --script ./shout.sh

with shout.sh:

! rustc --edition=2021 src/main.rs 2>&1 | grep -E "(internal compiler error)|(panicked)"