Closed
Description
auto-reduced (treereduce-rust):
struct S<T> {
_: union { t: T },
}
fn f(S::<&i8> { .. }: S<&i8>) {}
fn main() {}
original:
//@ check-pass
struct S<T> {
_: union { t: T },
}
fn f(S::<&i8> { .. }: S<&i8>) {}
fn main() {
f(S { _t: &42_i8 });
}Version information
rustc 1.81.0-nightly (d929a42a6 2024-06-25)
binary: rustc
commit-hash: d929a42a664c026167800801b26d734db925314f
commit-date: 2024-06-25
host: x86_64-unknown-linux-gnu
release: 1.81.0-nightly
LLVM version: 18.1.7
Command:
/home/matthias/.rustup/toolchains/master/bin/rustc
Program output
error[E0658]: unnamed fields are not yet fully implemented
--> /tmp/icemaker_global_tempdir.59Om17fnRflv/rustc_testrunner_tmpdir_reporting.OlpKHT78ftbD/mvce.rs:2:5
|
2 | _: union { t: T },
| ^
|
= note: see issue #49804 <https://github.com/rust-lang/rust/issues/49804> for more information
= help: add `#![feature(unnamed_fields)]` to the crate attributes to enable
= note: this compiler was built on 2024-06-25; consider upgrading it if it is out of date
error[E0658]: unnamed fields are not yet fully implemented
--> /tmp/icemaker_global_tempdir.59Om17fnRflv/rustc_testrunner_tmpdir_reporting.OlpKHT78ftbD/mvce.rs:2:8
|
2 | _: union { t: T },
| ^^^^^^^^^^^^^^
|
= note: see issue #49804 <https://github.com/rust-lang/rust/issues/49804> for more information
= help: add `#![feature(unnamed_fields)]` to the crate attributes to enable
= note: this compiler was built on 2024-06-25; consider upgrading it if it is out of date
error: internal compiler error: could not resolve DefId(0:4 ~ mvce[81cb]::S::T)
--> /tmp/icemaker_global_tempdir.59Om17fnRflv/rustc_testrunner_tmpdir_reporting.OlpKHT78ftbD/mvce.rs:2:19
|
2 | _: union { t: T },
| ^
thread 'rustc' panicked at compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs:1461:14:
Box<dyn Any>
stack backtrace:
0: 0x7ae2e7f1d2e5 - std::backtrace_rs::backtrace::libunwind::trace::h3816f17667167091
at /rustc/d929a42a664c026167800801b26d734db925314f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
1: 0x7ae2e7f1d2e5 - std::backtrace_rs::backtrace::trace_unsynchronized::h05c1a74390e79138
at /rustc/d929a42a664c026167800801b26d734db925314f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7ae2e7f1d2e5 - std::sys::backtrace::_print_fmt::hf9f67f450e2340b3
at /rustc/d929a42a664c026167800801b26d734db925314f/library/std/src/sys/backtrace.rs:68:5
3: 0x7ae2e7f1d2e5 - <std::sys::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hd0470f4740d6f066
at /rustc/d929a42a664c026167800801b26d734db925314f/library/std/src/sys/backtrace.rs:44:22
4: 0x7ae2e7f6cceb - core::fmt::rt::Argument::fmt::h70b8a6b09781c530
at /rustc/d929a42a664c026167800801b26d734db925314f/library/core/src/fmt/rt.rs:165:63
5: 0x7ae2e7f6cceb - core::fmt::write::hafea0839d2bbb3f2
at /rustc/d929a42a664c026167800801b26d734db925314f/library/core/src/fmt/mod.rs:1168:21
6: 0x7ae2e7f11f6f - std::io::Write::write_fmt::h781fa7911c53c2fa
at /rustc/d929a42a664c026167800801b26d734db925314f/library/std/src/io/mod.rs:1835:15
7: 0x7ae2e7f1d0be - std::sys::backtrace::_print::h864675b81ca0e917
at /rustc/d929a42a664c026167800801b26d734db925314f/library/std/src/sys/backtrace.rs:47:5
8: 0x7ae2e7f1d0be - std::sys::backtrace::print::h077604854516c949
at /rustc/d929a42a664c026167800801b26d734db925314f/library/std/src/sys/backtrace.rs:34:9
9: 0x7ae2e7f1fa09 - std::panicking::default_hook::{{closure}}::h0655bbcac1b3559e
10: 0x7ae2e7f1f7ac - std::panicking::default_hook::ha9e013cc76e074dd
at /rustc/d929a42a664c026167800801b26d734db925314f/library/std/src/panicking.rs:292:9
11: 0x7ae2e43eac90 - std[e6dd88f179d4d596]::panicking::update_hook::<alloc[7519215c1642967c]::boxed::Box<rustc_driver_impl[6d6094f07793e4a9]::install_ice_hook::{closure#0}>>::{closure#0}
12: 0x7ae2e7f202df - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::haac7baf64299a07d
at /rustc/d929a42a664c026167800801b26d734db925314f/library/alloc/src/boxed.rs:2078:9
13: 0x7ae2e7f202df - std::panicking::rust_panic_with_hook::h9bfa469549e655b8
at /rustc/d929a42a664c026167800801b26d734db925314f/library/std/src/panicking.rs:804:13
14: 0x7ae2e4424711 - std[e6dd88f179d4d596]::panicking::begin_panic::<rustc_errors[87fc00edeecce55a]::ExplicitBug>::{closure#0}
15: 0x7ae2e4417b76 - std[e6dd88f179d4d596]::sys::backtrace::__rust_end_short_backtrace::<std[e6dd88f179d4d596]::panicking::begin_panic<rustc_errors[87fc00edeecce55a]::ExplicitBug>::{closure#0}, !>
16: 0x7ae2e4417b26 - std[e6dd88f179d4d596]::panicking::begin_panic::<rustc_errors[87fc00edeecce55a]::ExplicitBug>
17: 0x7ae2e442d2c1 - <rustc_errors[87fc00edeecce55a]::diagnostic::BugAbort as rustc_errors[87fc00edeecce55a]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
18: 0x7ae2e44b2398 - <rustc_errors[87fc00edeecce55a]::DiagCtxtHandle>::span_bug::<rustc_span[31538c27a715cd64]::span_encoding::Span, alloc[7519215c1642967c]::string::String>
19: 0x7ae2e6189478 - <rustc_hir_analysis[6239ffc5e5ec24c9]::collect::resolve_bound_vars::BoundVarContext>::resolve_type_ref
20: 0x7ae2e2f7a430 - rustc_hir[ca0bf1aa5980ff5d]::intravisit::walk_qpath::<rustc_hir_analysis[6239ffc5e5ec24c9]::collect::resolve_bound_vars::BoundVarContext>
21: 0x7ae2e618efd1 - rustc_hir[ca0bf1aa5980ff5d]::intravisit::walk_item::<rustc_hir_analysis[6239ffc5e5ec24c9]::collect::resolve_bound_vars::BoundVarContext>
22: 0x7ae2e618e19a - <rustc_hir_analysis[6239ffc5e5ec24c9]::collect::resolve_bound_vars::BoundVarContext as rustc_hir[ca0bf1aa5980ff5d]::intravisit::Visitor>::visit_item
23: 0x7ae2e61927de - rustc_hir_analysis[6239ffc5e5ec24c9]::collect::resolve_bound_vars::resolve_bound_vars
24: 0x7ae2e6192437 - rustc_query_impl[b034b92d40b1d47d]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[b034b92d40b1d47d]::query_impl::resolve_bound_vars::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 8usize]>>
25: 0x7ae2e5c6419f - rustc_query_system[4a94863d7e85f976]::query::plumbing::try_execute_query::<rustc_query_impl[b034b92d40b1d47d]::DynamicConfig<rustc_query_system[4a94863d7e85f976]::query::caches::VecCache<rustc_hir[ca0bf1aa5980ff5d]::hir_id::OwnerId, rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[b034b92d40b1d47d]::plumbing::QueryCtxt, false>
26: 0x7ae2e5c63b51 - rustc_query_impl[b034b92d40b1d47d]::query_impl::resolve_bound_vars::get_query_non_incr::__rust_end_short_backtrace
27: 0x7ae2e5c64f71 - rustc_query_impl[b034b92d40b1d47d]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[b034b92d40b1d47d]::query_impl::named_variable_map::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 8usize]>>
28: 0x7ae2e5c6419f - rustc_query_system[4a94863d7e85f976]::query::plumbing::try_execute_query::<rustc_query_impl[b034b92d40b1d47d]::DynamicConfig<rustc_query_system[4a94863d7e85f976]::query::caches::VecCache<rustc_hir[ca0bf1aa5980ff5d]::hir_id::OwnerId, rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[b034b92d40b1d47d]::plumbing::QueryCtxt, false>
29: 0x7ae2e5c63c0d - rustc_query_impl[b034b92d40b1d47d]::query_impl::named_variable_map::get_query_non_incr::__rust_end_short_backtrace
30: 0x7ae2e61a248f - <dyn rustc_hir_analysis[6239ffc5e5ec24c9]::hir_ty_lowering::HirTyLowerer>::lower_path
31: 0x7ae2e619f8c0 - <dyn rustc_hir_analysis[6239ffc5e5ec24c9]::hir_ty_lowering::HirTyLowerer>::lower_ty_common::{closure#0}
32: 0x7ae2e348f3c3 - rustc_hir_analysis[6239ffc5e5ec24c9]::collect::type_of::type_of
33: 0x7ae2e5be496a - rustc_query_impl[b034b92d40b1d47d]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[b034b92d40b1d47d]::query_impl::type_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 8usize]>>
34: 0x7ae2e5be3694 - rustc_query_system[4a94863d7e85f976]::query::plumbing::try_execute_query::<rustc_query_impl[b034b92d40b1d47d]::DynamicConfig<rustc_query_system[4a94863d7e85f976]::query::caches::DefIdCache<rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[b034b92d40b1d47d]::plumbing::QueryCtxt, false>
35: 0x7ae2e5be323b - rustc_query_impl[b034b92d40b1d47d]::query_impl::type_of::get_query_non_incr::__rust_end_short_backtrace
36: 0x7ae2e61e1e8e - rustc_hir_analysis[6239ffc5e5ec24c9]::outlives::inferred_outlives_crate
37: 0x7ae2e61e0f3c - rustc_query_impl[b034b92d40b1d47d]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[b034b92d40b1d47d]::query_impl::inferred_outlives_crate::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 8usize]>>
38: 0x7ae2e684f382 - rustc_query_system[4a94863d7e85f976]::query::plumbing::try_execute_query::<rustc_query_impl[b034b92d40b1d47d]::DynamicConfig<rustc_query_system[4a94863d7e85f976]::query::caches::SingleCache<rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[b034b92d40b1d47d]::plumbing::QueryCtxt, false>
39: 0x7ae2e684fd38 - rustc_query_impl[b034b92d40b1d47d]::query_impl::inferred_outlives_crate::get_query_non_incr::__rust_end_short_backtrace
40: 0x7ae2e5c36b56 - rustc_query_impl[b034b92d40b1d47d]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[b034b92d40b1d47d]::query_impl::inferred_outlives_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 16usize]>>
41: 0x7ae2e5c3592f - rustc_query_system[4a94863d7e85f976]::query::plumbing::try_execute_query::<rustc_query_impl[b034b92d40b1d47d]::DynamicConfig<rustc_query_system[4a94863d7e85f976]::query::caches::DefIdCache<rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[b034b92d40b1d47d]::plumbing::QueryCtxt, false>
42: 0x7ae2e5c3563f - rustc_query_impl[b034b92d40b1d47d]::query_impl::inferred_outlives_of::get_query_non_incr::__rust_end_short_backtrace
43: 0x7ae2e5c3fd9a - rustc_hir_analysis[6239ffc5e5ec24c9]::collect::predicates_defined_on
44: 0x7ae2e5c3fbed - rustc_query_impl[b034b92d40b1d47d]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[b034b92d40b1d47d]::query_impl::predicates_defined_on::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 24usize]>>
45: 0x7ae2e5c3fbd5 - <rustc_query_impl[b034b92d40b1d47d]::query_impl::predicates_defined_on::dynamic_query::{closure#2} as core[672c7616ff9a88f5]::ops::function::FnOnce<(rustc_middle[e321b4b4f2134162]::ty::context::TyCtxt, rustc_span[31538c27a715cd64]::def_id::DefId)>>::call_once
46: 0x7ae2e5c3f017 - rustc_query_system[4a94863d7e85f976]::query::plumbing::try_execute_query::<rustc_query_impl[b034b92d40b1d47d]::DynamicConfig<rustc_query_system[4a94863d7e85f976]::query::caches::DefIdCache<rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 24usize]>>, false, false, false>, rustc_query_impl[b034b92d40b1d47d]::plumbing::QueryCtxt, false>
47: 0x7ae2e5c3dd40 - rustc_query_impl[b034b92d40b1d47d]::query_impl::predicates_defined_on::get_query_non_incr::__rust_end_short_backtrace
48: 0x7ae2e5c3de8e - rustc_hir_analysis[6239ffc5e5ec24c9]::collect::predicates_of::predicates_of
49: 0x7ae2e5c3dd97 - rustc_query_impl[b034b92d40b1d47d]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[b034b92d40b1d47d]::query_impl::predicates_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 24usize]>>
50: 0x7ae2e5c3f031 - rustc_query_system[4a94863d7e85f976]::query::plumbing::try_execute_query::<rustc_query_impl[b034b92d40b1d47d]::DynamicConfig<rustc_query_system[4a94863d7e85f976]::query::caches::DefIdCache<rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 24usize]>>, false, false, false>, rustc_query_impl[b034b92d40b1d47d]::plumbing::QueryCtxt, false>
51: 0x7ae2e5c3eae8 - rustc_query_impl[b034b92d40b1d47d]::query_impl::predicates_of::get_query_non_incr::__rust_end_short_backtrace
52: 0x7ae2e5bffdfc - <rustc_hir_analysis[6239ffc5e5ec24c9]::collect::CollectItemTypesVisitor as rustc_hir[ca0bf1aa5980ff5d]::intravisit::Visitor>::visit_item
53: 0x7ae2e2b0f2ef - rustc_hir_analysis[6239ffc5e5ec24c9]::check::wfcheck::check_well_formed
54: 0x7ae2e608c2bd - rustc_query_impl[b034b92d40b1d47d]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[b034b92d40b1d47d]::query_impl::check_well_formed::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 1usize]>>
55: 0x7ae2e608c535 - rustc_query_system[4a94863d7e85f976]::query::plumbing::try_execute_query::<rustc_query_impl[b034b92d40b1d47d]::DynamicConfig<rustc_query_system[4a94863d7e85f976]::query::caches::VecCache<rustc_hir[ca0bf1aa5980ff5d]::hir_id::OwnerId, rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[b034b92d40b1d47d]::plumbing::QueryCtxt, false>
56: 0x7ae2e608c29a - rustc_query_impl[b034b92d40b1d47d]::query_impl::check_well_formed::get_query_non_incr::__rust_end_short_backtrace
57: 0x7ae2e608cf4c - rustc_hir_analysis[6239ffc5e5ec24c9]::check::wfcheck::check_mod_type_wf
58: 0x7ae2e608cd99 - rustc_query_impl[b034b92d40b1d47d]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[b034b92d40b1d47d]::query_impl::check_mod_type_wf::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 1usize]>>
59: 0x7ae2e6549038 - rustc_query_system[4a94863d7e85f976]::query::plumbing::try_execute_query::<rustc_query_impl[b034b92d40b1d47d]::DynamicConfig<rustc_query_system[4a94863d7e85f976]::query::caches::DefaultCache<rustc_span[31538c27a715cd64]::def_id::LocalModDefId, rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[b034b92d40b1d47d]::plumbing::QueryCtxt, false>
60: 0x7ae2e6548dd9 - rustc_query_impl[b034b92d40b1d47d]::query_impl::check_mod_type_wf::get_query_non_incr::__rust_end_short_backtrace
61: 0x7ae2e5d66e1f - rustc_hir_analysis[6239ffc5e5ec24c9]::check_crate
62: 0x7ae2e5d5cf15 - rustc_interface[73bd107be0165211]::passes::analysis
63: 0x7ae2e5d5cad9 - rustc_query_impl[b034b92d40b1d47d]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[b034b92d40b1d47d]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 1usize]>>
64: 0x7ae2e6850825 - rustc_query_system[4a94863d7e85f976]::query::plumbing::try_execute_query::<rustc_query_impl[b034b92d40b1d47d]::DynamicConfig<rustc_query_system[4a94863d7e85f976]::query::caches::SingleCache<rustc_middle[e321b4b4f2134162]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[b034b92d40b1d47d]::plumbing::QueryCtxt, false>
65: 0x7ae2e685058f - rustc_query_impl[b034b92d40b1d47d]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
66: 0x7ae2e6777e3f - rustc_interface[73bd107be0165211]::interface::run_compiler::<core[672c7616ff9a88f5]::result::Result<(), rustc_span[31538c27a715cd64]::ErrorGuaranteed>, rustc_driver_impl[6d6094f07793e4a9]::run_compiler::{closure#0}>::{closure#1}
67: 0x7ae2e6637e89 - std[e6dd88f179d4d596]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[73bd107be0165211]::util::run_in_thread_with_globals<rustc_interface[73bd107be0165211]::util::run_in_thread_pool_with_globals<rustc_interface[73bd107be0165211]::interface::run_compiler<core[672c7616ff9a88f5]::result::Result<(), rustc_span[31538c27a715cd64]::ErrorGuaranteed>, rustc_driver_impl[6d6094f07793e4a9]::run_compiler::{closure#0}>::{closure#1}, core[672c7616ff9a88f5]::result::Result<(), rustc_span[31538c27a715cd64]::ErrorGuaranteed>>::{closure#0}, core[672c7616ff9a88f5]::result::Result<(), rustc_span[31538c27a715cd64]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[672c7616ff9a88f5]::result::Result<(), rustc_span[31538c27a715cd64]::ErrorGuaranteed>>
68: 0x7ae2e6637c3a - <<std[e6dd88f179d4d596]::thread::Builder>::spawn_unchecked_<rustc_interface[73bd107be0165211]::util::run_in_thread_with_globals<rustc_interface[73bd107be0165211]::util::run_in_thread_pool_with_globals<rustc_interface[73bd107be0165211]::interface::run_compiler<core[672c7616ff9a88f5]::result::Result<(), rustc_span[31538c27a715cd64]::ErrorGuaranteed>, rustc_driver_impl[6d6094f07793e4a9]::run_compiler::{closure#0}>::{closure#1}, core[672c7616ff9a88f5]::result::Result<(), rustc_span[31538c27a715cd64]::ErrorGuaranteed>>::{closure#0}, core[672c7616ff9a88f5]::result::Result<(), rustc_span[31538c27a715cd64]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[672c7616ff9a88f5]::result::Result<(), rustc_span[31538c27a715cd64]::ErrorGuaranteed>>::{closure#2} as core[672c7616ff9a88f5]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
69: 0x7ae2e7f2a16b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hcfcb27dcb2ebeeb7
at /rustc/d929a42a664c026167800801b26d734db925314f/library/alloc/src/boxed.rs:2064:9
70: 0x7ae2e7f2a16b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7d3cd9c06edd61cc
at /rustc/d929a42a664c026167800801b26d734db925314f/library/alloc/src/boxed.rs:2064:9
71: 0x7ae2e7f2a16b - std::sys::pal::unix::thread::Thread::new::thread_start::h082ffbd0fcdeae0d
at /rustc/d929a42a664c026167800801b26d734db925314f/library/std/src/sys/pal/unix/thread.rs:108:17
72: 0x7ae2e7cbfded - <unknown>
73: 0x7ae2e7d430dc - <unknown>
74: 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: please make sure that you have updated to the latest nightly
note: rustc 1.81.0-nightly (d929a42a6 2024-06-25) running on x86_64-unknown-linux-gnu
query stack during panic:
#0 [resolve_bound_vars] resolving lifetimes
#1 [named_variable_map] looking up a named region
end of query stack
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0658`.