cyrgani
commented
4 days ago Slightly shorter:
fn a(_: impl Iterator<Item = { match 0 { ! } }>) {}Open matthiaskrgr opened 4 days ago
cyrgani
commented
4 days ago Slightly shorter:
fn a(_: impl Iterator<Item = { match 0 { ! } }>) {}
snippet:
Version information
Possibly related line of code: https://github.com/rust-lang/rust/blob/481b5fadd7994d0f04e9a6fe9ded3f22d6753825/compiler/rustc_middle/src/ty/mod.rs#L1588-L1600
Command:
/home/matthias/.rustup/toolchains/master/bin/rustcProgram output
``` error[E0658]: `!` patterns are experimental --> /tmp/icemaker_global_tempdir.RFI67OtIoUCV/rustc_testrunner_tmpdir_reporting.BmpfyXLeFAgh/mvce.rs:4:37 | 4 | match *todo!() { ! }; | ^ | = note: see issue #118155 for more information
= help: add `#![feature(never_patterns)]` to the crate attributes to enable
= note: this compiler was built on 2024-11-24; consider upgrading it if it is out of date
error: internal compiler error: compiler/rustc_middle/src/ty/mod.rs:1594:13: item_name: no name for DefPath { data: [DisambiguatedDefPathData { data: ValueNs("a"), disambiguator: 0 }, DisambiguatedDefPathData { data: TypeNs(""), disambiguator: 0 }], krate: crate0 }
thread 'rustc' panicked at compiler/rustc_middle/src/ty/mod.rs:1594:13:
Box
stack backtrace:
0: 0x7fada44bf8fa - ::fmt::h99e2445636bcb92d
1: 0x7fada4c24d7c - core::fmt::write::h812019335d70dce0
2: 0x7fada6014b11 - std::io::Write::write_fmt::hcf100a634041ee1b
3: 0x7fada44bf752 - std::sys::backtrace::BacktraceLock::print::hcac021922af4bfb2
4: 0x7fada44c1c2a - std::panicking::default_hook::{{closure}}::h38cfa96ac70267dc
5: 0x7fada44c1a90 - std::panicking::default_hook::hb27c01f91a1d7781
6: 0x7fada35392a5 - std[1f3ac3280189331a]::panicking::update_hook::>::{closure#0}
7: 0x7fada44c2308 - std::panicking::rust_panic_with_hook::ha0a555d8ce7b1086
8: 0x7fada3573db1 - std[1f3ac3280189331a]::panicking::begin_panic::::{closure#0}
9: 0x7fada3566d56 - std[1f3ac3280189331a]::sys::backtrace::__rust_end_short_backtrace::::{closure#0}, !>
10: 0x7fada3562329 - std[1f3ac3280189331a]::panicking::begin_panic::
11: 0x7fada357dce1 - ::emit_producing_guarantee
12: 0x7fada3bf4f03 - rustc_middle[b432c06521885074]::util::bug::opt_span_bug_fmt::::{closure#0}
13: 0x7fada3bdd18a - rustc_middle[b432c06521885074]::ty::context::tls::with_opt::::{closure#0}, !>::{closure#0}
14: 0x7fada3bdd01b - rustc_middle[b432c06521885074]::ty::context::tls::with_context_opt::::{closure#0}, !>::{closure#0}, !>
15: 0x7fada1d08050 - rustc_middle[b432c06521885074]::util::bug::bug_fmt
16: 0x7fada501112f - ::lower_ty_direct
17: 0x7fada500b9d8 - ::lower_fn_decl
18: 0x7fada5ce742d - ::lower_item_kind
19: 0x7fada4fd1c3d - ::lower_node
20: 0x7fada4fd0990 - rustc_ast_lowering[79467ad6dbcc4c8f]::lower_to_hir
21: 0x7fada5bdebb8 - rustc_query_impl[b696f309ae195481]::plumbing::__rust_begin_short_backtrace::>
22: 0x7fada5bddb35 - rustc_query_system[62b31e2f5f52cd09]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[b696f309ae195481]::plumbing::QueryCtxt, false>
23: 0x7fada5bdd6dd - rustc_query_impl[b696f309ae195481]::query_impl::hir_crate::get_query_non_incr::__rust_end_short_backtrace
24: 0x7fada4e36bc2 - rustc_query_impl[b696f309ae195481]::plumbing::__rust_begin_short_backtrace::>
25: 0x7fada4e361b7 - rustc_query_system[62b31e2f5f52cd09]::query::plumbing::try_execute_query::, rustc_query_system[62b31e2f5f52cd09]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[b696f309ae195481]::plumbing::QueryCtxt, false>
26: 0x7fada4e35f0f - rustc_query_impl[b696f309ae195481]::query_impl::hir_attrs::get_query_non_incr::__rust_end_short_backtrace
27: 0x7fada50f6843 - ::attrs
28: 0x7fada5d86200 - rustc_passes[f810fb5d3a359db7]::entry::entry_fn
29: 0x7fada5d86198 - rustc_query_impl[b696f309ae195481]::plumbing::__rust_begin_short_backtrace::>
30: 0x7fada5d86171 - >::call_once
31: 0x7fada5d85b09 - rustc_query_system[62b31e2f5f52cd09]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[b696f309ae195481]::plumbing::QueryCtxt, false>
32: 0x7fada5d858a8 - rustc_query_impl[b696f309ae195481]::query_impl::entry_fn::get_query_non_incr::__rust_end_short_backtrace
33: 0x7fada55a257f - rustc_interface[8ffc5b6c08143df7]::passes::run_required_analyses
34: 0x7fada5596a9e - rustc_interface[8ffc5b6c08143df7]::passes::analysis
35: 0x7fada5596a6f - rustc_query_impl[b696f309ae195481]::plumbing::__rust_begin_short_backtrace::>
36: 0x7fada5bdb3ee - rustc_query_system[62b31e2f5f52cd09]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[b696f309ae195481]::plumbing::QueryCtxt, false>
37: 0x7fada5bdb0ce - rustc_query_impl[b696f309ae195481]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
38: 0x7fada5aeb9d8 - rustc_interface[8ffc5b6c08143df7]::interface::run_compiler::, rustc_driver_impl[23521148f3a5f4e2]::run_compiler::{closure#0}>::{closure#1}
39: 0x7fada5b66820 - std[1f3ac3280189331a]::sys::backtrace::__rust_begin_short_backtrace::, rustc_driver_impl[23521148f3a5f4e2]::run_compiler::{closure#0}>::{closure#1}, core[6532f1aa9b91b5ff]::result::Result<(), rustc_span[a0cbfa4ee9ea560a]::ErrorGuaranteed>>::{closure#0}, core[6532f1aa9b91b5ff]::result::Result<(), rustc_span[a0cbfa4ee9ea560a]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[6532f1aa9b91b5ff]::result::Result<(), rustc_span[a0cbfa4ee9ea560a]::ErrorGuaranteed>>
40: 0x7fada5b6653d - <::spawn_unchecked_, rustc_driver_impl[23521148f3a5f4e2]::run_compiler::{closure#0}>::{closure#1}, core[6532f1aa9b91b5ff]::result::Result<(), rustc_span[a0cbfa4ee9ea560a]::ErrorGuaranteed>>::{closure#0}, core[6532f1aa9b91b5ff]::result::Result<(), rustc_span[a0cbfa4ee9ea560a]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[6532f1aa9b91b5ff]::result::Result<(), rustc_span[a0cbfa4ee9ea560a]::ErrorGuaranteed>>::{closure#1} as core[6532f1aa9b91b5ff]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
41: 0x7fada5b65cf9 - std::sys::pal::unix::thread::Thread::new::thread_start::h8f9ff78050bb9448
42: 0x7fada735139d -
43: 0x7fada73d649c -
44: 0x0 -
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 1.85.0-nightly (481b5fadd 2024-11-24) running on x86_64-unknown-linux-gnu
query stack during panic:
#0 [hir_crate] getting the crate HIR
#1 [hir_attrs] getting HIR owner attributes in ``
end of query stack
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0658`.
```