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Compiler bug related to evaluating requirement on recursive type #100867

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soooch opened this issue Aug 22, 2022 · 4 comments
Closed

Compiler bug related to evaluating requirement on recursive type #100867

soooch opened this issue Aug 22, 2022 · 4 comments
Labels
C-bug Category: This is a bug. E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example 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.

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@soooch
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soooch commented Aug 22, 2022 •
edited
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Code

https://github.com/soooch/AdventOfCode/tree/ICE/2021/day16/part2

If packet.rs:133 is uncommented, the crate compiles without issue.

If instead you comment out packet.rs:98, the crate does not compile, but we get an error message about an overflow while evaluating a type.

This error message is perhaps what we should expect to see when compiling the original code.

// will try to find min repro later

Meta

rustc --version --verbose:

rustc 1.63.0 (4b91a6ea7 2022-08-08)
binary: rustc
commit-hash: 4b91a6ea7258a947e59c6522cd5898e7c0a6a88f
commit-date: 2022-08-08
host: x86_64-apple-darwin
release: 1.63.0
LLVM version: 14.0.5

Bug exists in nightly as well:

rustc 1.65.0-nightly (c0941dfb5 2022-08-21)
binary: rustc
commit-hash: c0941dfb5a7d07ef2d70cc54d319669d9d6f6c01
commit-date: 2022-08-21
host: x86_64-apple-darwin
release: 1.65.0-nightly
LLVM version: 15.0.0

Error output

   Compiling day16_part2 v0.1.0 (/Users/soooch/Code/AoC/2021/day16/part2)
thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', compiler/rustc_monomorphize/src/collector.rs:958:93
stack backtrace:
   0:        0x103434bc4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h85521558a183f368
   1:        0x10348f88b - core::fmt::write::h01631fae0d2b98bc
   2:        0x103427388 - std::io::Write::write_fmt::h675dde99a2999169
   3:        0x103437e8d - std::panicking::default_hook::{{closure}}::h5e5df492d229fd65
   4:        0x103437be4 - std::panicking::default_hook::h18647b59f1a84ee2
   5:        0x10c1cca2a - rustc_driver[ac70ecf5978e4b80]::DEFAULT_HOOK::{closure#0}::{closure#0}
   6:        0x1034384fb - std::panicking::rust_panic_with_hook::hd9ead35a68ccc55e
   7:        0x10343833a - std::panicking::begin_panic_handler::{{closure}}::h6fca91c5e1dc2f30
   8:        0x103435047 - std::sys_common::backtrace::__rust_end_short_backtrace::h4ff3025d9a0a0490
   9:        0x10343804a - _rust_begin_unwind
  10:        0x1034b92e3 - core::panicking::panic_fmt::h3d9f795ee387ef8d
  11:        0x1034b91c7 - core::panicking::panic::h02eb82771823ab30
  12:        0x10e85faea - <rustc_monomorphize[6b13f5ca08c49c3d]::collector::MirNeighborCollector as rustc_middle[2081e44c4fdefe3]::mir::visit::Visitor>::visit_terminator
  13:        0x10e866e70 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_neighbours
  14:        0x10e86431d - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  15:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  16:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  17:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  18:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  19:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  20:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  21:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  22:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  23:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  24:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  25:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
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  51:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
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  56:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  57:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  58:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  59:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  60:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  61:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  62:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  63:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  64:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  65:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  66:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  67:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  68:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  69:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  70:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  71:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  72:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  73:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  74:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
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  80:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  81:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  82:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  83:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  84:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  85:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  86:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  87:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  88:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  89:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  90:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  91:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
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  93:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  94:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
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 100:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
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 358:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 359:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 360:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 361:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 362:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 363:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 364:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 365:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 366:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 367:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 368:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 369:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 370:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 371:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 372:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 373:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 374:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 375:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 376:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 377:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 378:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 379:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 380:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 381:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 382:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 383:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 384:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 385:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 386:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 387:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 388:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 389:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 390:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 391:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 392:        0x10e8649b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 393:        0x10e87a1fa - <rustc_session[d000600da435f98d]::session::Session>::time::<(), rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_crate_mono_items::{closure#1}>
 394:        0x10e86189a - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_crate_mono_items
 395:        0x10e870bf2 - rustc_monomorphize[6b13f5ca08c49c3d]::partitioning::collect_and_partition_mono_items
 396:        0x10fa51cf8 - <rustc_query_system[9d983cb454331f85]::dep_graph::graph::DepGraph<rustc_middle[2081e44c4fdefe3]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[2081e44c4fdefe3]::ty::context::TyCtxt, (), (&std[3e3ff1c8909a2cf5]::collections::hash::set::HashSet<rustc_span[32c65192b34573a0]::def_id::DefId, core[8ab3e1fc28fda4b6]::hash::BuildHasherDefault<rustc_hash[6b4f0f1f4b235c1e]::FxHasher>>, &[rustc_middle[2081e44c4fdefe3]::mir::mono::CodegenUnit])>
 397:        0x10f7f2358 - rustc_query_system[9d983cb454331f85]::query::plumbing::try_execute_query::<rustc_query_impl[5a847b75bd4cae80]::plumbing::QueryCtxt, rustc_query_system[9d983cb454331f85]::query::caches::DefaultCache<(), (&std[3e3ff1c8909a2cf5]::collections::hash::set::HashSet<rustc_span[32c65192b34573a0]::def_id::DefId, core[8ab3e1fc28fda4b6]::hash::BuildHasherDefault<rustc_hash[6b4f0f1f4b235c1e]::FxHasher>>, &[rustc_middle[2081e44c4fdefe3]::mir::mono::CodegenUnit])>>
 398:        0x10f88455f - rustc_query_system[9d983cb454331f85]::query::plumbing::get_query::<rustc_query_impl[5a847b75bd4cae80]::queries::collect_and_partition_mono_items, rustc_query_impl[5a847b75bd4cae80]::plumbing::QueryCtxt>
 399:        0x10fb19c77 - <rustc_query_impl[5a847b75bd4cae80]::Queries as rustc_middle[2081e44c4fdefe3]::ty::query::QueryEngine>::collect_and_partition_mono_items
 400:        0x10c3abcd0 - <rustc_codegen_llvm[5d52e87b9172b381]::LlvmCodegenBackend as rustc_codegen_ssa[aa21125670a59c52]::traits::backend::CodegenBackend>::codegen_crate
 401:        0x10c280392 - <rustc_session[d000600da435f98d]::session::Session>::time::<alloc[c3e774ed19d23490]::boxed::Box<dyn core[8ab3e1fc28fda4b6]::any::Any>, rustc_interface[e40480ee975baf2f]::passes::start_codegen::{closure#0}>
 402:        0x10c26f92d - <rustc_interface[e40480ee975baf2f]::passes::QueryContext>::enter::<<rustc_interface[e40480ee975baf2f]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[8ab3e1fc28fda4b6]::result::Result<alloc[c3e774ed19d23490]::boxed::Box<dyn core[8ab3e1fc28fda4b6]::any::Any>, rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>>
 403:        0x10c2f84b9 - <rustc_interface[e40480ee975baf2f]::queries::Queries>::ongoing_codegen
 404:        0x10c166d38 - <rustc_interface[e40480ee975baf2f]::interface::Compiler>::enter::<rustc_driver[ac70ecf5978e4b80]::run_compiler::{closure#1}::{closure#2}, core[8ab3e1fc28fda4b6]::result::Result<core[8ab3e1fc28fda4b6]::option::Option<rustc_interface[e40480ee975baf2f]::queries::Linker>, rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>>
 405:        0x10c151108 - rustc_span[32c65192b34573a0]::with_source_map::<core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>, rustc_interface[e40480ee975baf2f]::interface::create_compiler_and_run<core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>, rustc_driver[ac70ecf5978e4b80]::run_compiler::{closure#1}>::{closure#1}>
 406:        0x10c167949 - <scoped_tls[5dcb00ea665ca3b8]::ScopedKey<rustc_span[32c65192b34573a0]::SessionGlobals>>::set::<rustc_interface[e40480ee975baf2f]::interface::run_compiler<core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>, rustc_driver[ac70ecf5978e4b80]::run_compiler::{closure#1}>::{closure#0}, core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>>
 407:        0x10c1ba7d9 - std[3e3ff1c8909a2cf5]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[e40480ee975baf2f]::util::run_in_thread_pool_with_globals<rustc_interface[e40480ee975baf2f]::interface::run_compiler<core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>, rustc_driver[ac70ecf5978e4b80]::run_compiler::{closure#1}>::{closure#0}, core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>>::{closure#0}, core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>>
 408:        0x10c18a081 - <<std[3e3ff1c8909a2cf5]::thread::Builder>::spawn_unchecked_<rustc_interface[e40480ee975baf2f]::util::run_in_thread_pool_with_globals<rustc_interface[e40480ee975baf2f]::interface::run_compiler<core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>, rustc_driver[ac70ecf5978e4b80]::run_compiler::{closure#1}>::{closure#0}, core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>>::{closure#0}, core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>>::{closure#1} as core[8ab3e1fc28fda4b6]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
 409:        0x1034417a7 - std::sys::unix::thread::Thread::new::thread_start::hf7c5ae502e9a7ed8
 410:     0x7ff801aad4e1 - __pthread_start

error: internal compiler error: unexpected panic

note: 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: rustc 1.63.0 (4b91a6ea7 2022-08-08) running on x86_64-apple-darwin

note: compiler flags: --crate-type bin -C embed-bitcode=no -C split-debuginfo=unpacked -C debuginfo=2 -C incremental

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

query stack during panic:
#0 [collect_and_partition_mono_items] collect_and_partition_mono_items
end of query stack
error: could not compile `day16_part2`
Backtrace 

   Compiling day16_part2 v0.1.0 (/Users/soooch/Code/AoC/2021/day16/part2)
thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', compiler/rustc_monomorphize/src/collector.rs:958:93
stack backtrace:
   0:        0x10d09dbc4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h85521558a183f368
   1:        0x10d0f888b - core::fmt::write::h01631fae0d2b98bc
   2:        0x10d090388 - std::io::Write::write_fmt::h675dde99a2999169
   3:        0x10d0a0e8d - std::panicking::default_hook::{{closure}}::h5e5df492d229fd65
   4:        0x10d0a0be4 - std::panicking::default_hook::h18647b59f1a84ee2
   5:        0x1194c7a2a - rustc_driver[ac70ecf5978e4b80]::DEFAULT_HOOK::{closure#0}::{closure#0}
   6:        0x10d0a14fb - std::panicking::rust_panic_with_hook::hd9ead35a68ccc55e
   7:        0x10d0a133a - std::panicking::begin_panic_handler::{{closure}}::h6fca91c5e1dc2f30
   8:        0x10d09e047 - std::sys_common::backtrace::__rust_end_short_backtrace::h4ff3025d9a0a0490
   9:        0x10d0a104a - _rust_begin_unwind
  10:        0x10d1222e3 - core::panicking::panic_fmt::h3d9f795ee387ef8d
  11:        0x10d1221c7 - core::panicking::panic::h02eb82771823ab30
  12:        0x11bb5aaea - <rustc_monomorphize[6b13f5ca08c49c3d]::collector::MirNeighborCollector as rustc_middle[2081e44c4fdefe3]::mir::visit::Visitor>::visit_terminator
  13:        0x11bb61e70 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_neighbours
  14:        0x11bb5f31d - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  15:        0x11bb5f9b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
  16:        0x11bb5f9b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 [EDITED FOR CLARITY: repeats a bunch]
 387:        0x11bb5f9b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 388:        0x11bb5f9b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 389:        0x11bb5f9b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 390:        0x11bb5f9b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 391:        0x11bb5f9b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 392:        0x11bb5f9b6 - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_items_rec
 393:        0x11bb751fa - <rustc_session[d000600da435f98d]::session::Session>::time::<(), rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_crate_mono_items::{closure#1}>
 394:        0x11bb5c89a - rustc_monomorphize[6b13f5ca08c49c3d]::collector::collect_crate_mono_items
 395:        0x11bb6bbf2 - rustc_monomorphize[6b13f5ca08c49c3d]::partitioning::collect_and_partition_mono_items
 396:        0x11cd4ccf8 - <rustc_query_system[9d983cb454331f85]::dep_graph::graph::DepGraph<rustc_middle[2081e44c4fdefe3]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[2081e44c4fdefe3]::ty::context::TyCtxt, (), (&std[3e3ff1c8909a2cf5]::collections::hash::set::HashSet<rustc_span[32c65192b34573a0]::def_id::DefId, core[8ab3e1fc28fda4b6]::hash::BuildHasherDefault<rustc_hash[6b4f0f1f4b235c1e]::FxHasher>>, &[rustc_middle[2081e44c4fdefe3]::mir::mono::CodegenUnit])>
 397:        0x11caed358 - rustc_query_system[9d983cb454331f85]::query::plumbing::try_execute_query::<rustc_query_impl[5a847b75bd4cae80]::plumbing::QueryCtxt, rustc_query_system[9d983cb454331f85]::query::caches::DefaultCache<(), (&std[3e3ff1c8909a2cf5]::collections::hash::set::HashSet<rustc_span[32c65192b34573a0]::def_id::DefId, core[8ab3e1fc28fda4b6]::hash::BuildHasherDefault<rustc_hash[6b4f0f1f4b235c1e]::FxHasher>>, &[rustc_middle[2081e44c4fdefe3]::mir::mono::CodegenUnit])>>
 398:        0x11cb7f55f - rustc_query_system[9d983cb454331f85]::query::plumbing::get_query::<rustc_query_impl[5a847b75bd4cae80]::queries::collect_and_partition_mono_items, rustc_query_impl[5a847b75bd4cae80]::plumbing::QueryCtxt>
 399:        0x11ce14c77 - <rustc_query_impl[5a847b75bd4cae80]::Queries as rustc_middle[2081e44c4fdefe3]::ty::query::QueryEngine>::collect_and_partition_mono_items
 400:        0x1196a6cd0 - <rustc_codegen_llvm[5d52e87b9172b381]::LlvmCodegenBackend as rustc_codegen_ssa[aa21125670a59c52]::traits::backend::CodegenBackend>::codegen_crate
 401:        0x11957b392 - <rustc_session[d000600da435f98d]::session::Session>::time::<alloc[c3e774ed19d23490]::boxed::Box<dyn core[8ab3e1fc28fda4b6]::any::Any>, rustc_interface[e40480ee975baf2f]::passes::start_codegen::{closure#0}>
 402:        0x11956a92d - <rustc_interface[e40480ee975baf2f]::passes::QueryContext>::enter::<<rustc_interface[e40480ee975baf2f]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[8ab3e1fc28fda4b6]::result::Result<alloc[c3e774ed19d23490]::boxed::Box<dyn core[8ab3e1fc28fda4b6]::any::Any>, rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>>
 403:        0x1195f34b9 - <rustc_interface[e40480ee975baf2f]::queries::Queries>::ongoing_codegen
 404:        0x119461d38 - <rustc_interface[e40480ee975baf2f]::interface::Compiler>::enter::<rustc_driver[ac70ecf5978e4b80]::run_compiler::{closure#1}::{closure#2}, core[8ab3e1fc28fda4b6]::result::Result<core[8ab3e1fc28fda4b6]::option::Option<rustc_interface[e40480ee975baf2f]::queries::Linker>, rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>>
 405:        0x11944c108 - rustc_span[32c65192b34573a0]::with_source_map::<core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>, rustc_interface[e40480ee975baf2f]::interface::create_compiler_and_run<core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>, rustc_driver[ac70ecf5978e4b80]::run_compiler::{closure#1}>::{closure#1}>
 406:        0x119462949 - <scoped_tls[5dcb00ea665ca3b8]::ScopedKey<rustc_span[32c65192b34573a0]::SessionGlobals>>::set::<rustc_interface[e40480ee975baf2f]::interface::run_compiler<core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>, rustc_driver[ac70ecf5978e4b80]::run_compiler::{closure#1}>::{closure#0}, core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>>
 407:        0x1194b57d9 - std[3e3ff1c8909a2cf5]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[e40480ee975baf2f]::util::run_in_thread_pool_with_globals<rustc_interface[e40480ee975baf2f]::interface::run_compiler<core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>, rustc_driver[ac70ecf5978e4b80]::run_compiler::{closure#1}>::{closure#0}, core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>>::{closure#0}, core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>>
 408:        0x119485081 - <<std[3e3ff1c8909a2cf5]::thread::Builder>::spawn_unchecked_<rustc_interface[e40480ee975baf2f]::util::run_in_thread_pool_with_globals<rustc_interface[e40480ee975baf2f]::interface::run_compiler<core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>, rustc_driver[ac70ecf5978e4b80]::run_compiler::{closure#1}>::{closure#0}, core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>>::{closure#0}, core[8ab3e1fc28fda4b6]::result::Result<(), rustc_errors[27f70fd4cde4f65]::ErrorGuaranteed>>::{closure#1} as core[8ab3e1fc28fda4b6]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
 409:        0x10d0aa7a7 - std::sys::unix::thread::Thread::new::thread_start::hf7c5ae502e9a7ed8
 410:     0x7ff801aad4e1 - __pthread_start

error: internal compiler error: unexpected panic

note: 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: rustc 1.63.0 (4b91a6ea7 2022-08-08) running on x86_64-apple-darwin

note: compiler flags: --crate-type bin -C embed-bitcode=no -C split-debuginfo=unpacked -C debuginfo=2 -C incremental

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

query stack during panic:
#0 [collect_and_partition_mono_items] collect_and_partition_mono_items
end of query stack
error: could not compile `day16_part2`

@soooch soooch 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 Aug 22, 2022
@gimbling-away

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rustbot commented Aug 22, 2022

Error: Label needs-mcve can only be set by Rust team members

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

@TaKO8Ki TaKO8Ki added the E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example label Aug 22, 2022
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5225225 commented Aug 24, 2022

Testing with the latest rustc: this doesn't reproduce anymore, and looks to have been fixed in #100757.

(This is a bisect for non-ice)

searched nightlies: from nightly-2022-08-01 to nightly-2022-08-24
regressed nightly: nightly-2022-08-23
searched commit range: c0941df...015a824
regressed commit: ee8c31e

bisected with cargo-bisect-rustc v0.6.4

Host triple: x86_64-unknown-linux-gnu
Reproduce with:

cargo bisect-rustc 2022-08-01 --preserve --regress non-ice -- build

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soooch commented Aug 24, 2022

I can confirm I no longer see an ICE on my machine with the latest nightly.

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C-bug Category: This is a bug. E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example 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.
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@compiler-errors @5225225 @soooch @TaKO8Ki @rustbot @gimbling-away