Closed
Description
auto-reduced (treereduce-rust):
pub trait Foo2 {
fn bar<'a: 'a>(&'a mut self) -> impl Sized + use<'static>;
}
impl Foo2 for () {
fn bar<'a: 'a>(&'a mut self) -> impl Sized + 'a {}
}
original:
//@ check-pass
//@ edition:2021
pub trait Foo {
#[allow(async_fn_in_trait)]
async fn bar<'a: 'a>(&'a mut self);
}
impl Foo for () {
async fn bar<'a: 'a>(&'a mut self) {}
}
pub trait Foo2 {
fn bar<'a: 'a>(&'a mut self) -> impl Sized + use<'static>;
}
impl Foo2 for () {
fn bar<'a: 'a>(&'a mut self) -> impl Sized + 'a {}
}
fn main() {}Version information
rustc 1.82.0-nightly (a7399ba69 2024-08-31)
binary: rustc
commit-hash: a7399ba69d37b019677a9c47fe89ceb8dd82db2d
commit-date: 2024-08-31
host: x86_64-unknown-linux-gnu
release: 1.82.0-nightly
LLVM version: 19.1.0
Command:
/home/matthias/.rustup/toolchains/master/bin/rustc
Program output
error: `use<...>` precise capturing syntax is currently not allowed in return-position `impl Trait` in traits
--> /tmp/icemaker_global_tempdir.xgv2FYp3RLcf/rustc_testrunner_tmpdir_reporting.fx0w6Esy9qlw/mvce.rs:2:50
|
2 | fn bar<'a: 'a>(&'a mut self) -> impl Sized + use<'static>;
| ^^^^^^^^^^^^
|
= note: currently, return-position `impl Trait` in traits and trait implementations capture all lifetimes in scope
error[E0601]: `main` function not found in crate `mvce`
--> /tmp/icemaker_global_tempdir.xgv2FYp3RLcf/rustc_testrunner_tmpdir_reporting.fx0w6Esy9qlw/mvce.rs:7:2
|
7 | }
| ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.xgv2FYp3RLcf/rustc_testrunner_tmpdir_reporting.fx0w6Esy9qlw/mvce.rs`
error: expected lifetime parameter in `use<...>` precise captures list, found `'static`
--> /tmp/icemaker_global_tempdir.xgv2FYp3RLcf/rustc_testrunner_tmpdir_reporting.fx0w6Esy9qlw/mvce.rs:2:54
|
2 | fn bar<'a: 'a>(&'a mut self) -> impl Sized + use<'static>;
| ^^^^^^^
error: `impl Trait` must mention the `Self` type of the trait in `use<...>`
--> /tmp/icemaker_global_tempdir.xgv2FYp3RLcf/rustc_testrunner_tmpdir_reporting.fx0w6Esy9qlw/mvce.rs:2:37
|
1 | pub trait Foo2 {
| -------------- `Self` type parameter is implicitly captured by this `impl Trait`
2 | fn bar<'a: 'a>(&'a mut self) -> impl Sized + use<'static>;
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: currently, all type parameters are required to be mentioned in the precise captures list
error: internal compiler error: compiler/rustc_middle/src/ty/generics.rs:258:18: expected lifetime parameter, but found another generic parameter
thread 'rustc' panicked at compiler/rustc_middle/src/ty/generics.rs:258:18:
Box<dyn Any>
stack backtrace:
0: 0x79ccab5fed9a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha8b6a03154ea19c3
1: 0x79ccabe03157 - core::fmt::write::hb1fec16e33daff29
2: 0x79ccacde7fd1 - std::io::Write::write_fmt::h890fd89091c43625
3: 0x79ccab60146b - std::panicking::default_hook::{{closure}}::h8e59b6e48c542f1f
4: 0x79ccab6010de - std::panicking::default_hook::he45ee90607527b0d
5: 0x79ccaa75f349 - std[70086fc653812fb1]::panicking::update_hook::<alloc[5793336eebe11ba]::boxed::Box<rustc_driver_impl[bde591410b6ce234]::install_ice_hook::{closure#0}>>::{closure#0}
6: 0x79ccab601d87 - std::panicking::rust_panic_with_hook::h57f9e7cd2d85b015
7: 0x79ccaa799551 - std[70086fc653812fb1]::panicking::begin_panic::<rustc_errors[d71da989a5965fd6]::ExplicitBug>::{closure#0}
8: 0x79ccaa78cc16 - std[70086fc653812fb1]::sys::backtrace::__rust_end_short_backtrace::<std[70086fc653812fb1]::panicking::begin_panic<rustc_errors[d71da989a5965fd6]::ExplicitBug>::{closure#0}, !>
9: 0x79ccaa787f66 - std[70086fc653812fb1]::panicking::begin_panic::<rustc_errors[d71da989a5965fd6]::ExplicitBug>
10: 0x79ccaa7a2771 - <rustc_errors[d71da989a5965fd6]::diagnostic::BugAbort as rustc_errors[d71da989a5965fd6]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
11: 0x79ccaad6b764 - rustc_middle[454e73a6dc67a815]::util::bug::opt_span_bug_fmt::<rustc_span[fcf79a5fd0f12046]::span_encoding::Span>::{closure#0}
12: 0x79ccaad5131a - rustc_middle[454e73a6dc67a815]::ty::context::tls::with_opt::<rustc_middle[454e73a6dc67a815]::util::bug::opt_span_bug_fmt<rustc_span[fcf79a5fd0f12046]::span_encoding::Span>::{closure#0}, !>::{closure#0}
13: 0x79ccaad511cb - rustc_middle[454e73a6dc67a815]::ty::context::tls::with_context_opt::<rustc_middle[454e73a6dc67a815]::ty::context::tls::with_opt<rustc_middle[454e73a6dc67a815]::util::bug::opt_span_bug_fmt<rustc_span[fcf79a5fd0f12046]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
14: 0x79cca88b3b40 - rustc_middle[454e73a6dc67a815]::util::bug::bug_fmt
15: 0x79ccad6c4b01 - <rustc_middle[454e73a6dc67a815]::ty::generics::Generics>::region_param.cold
16: 0x79cca92b7418 - <rustc_middle[454e73a6dc67a815]::ty::region::Region>::opt_param_def_id
17: 0x79ccaa8e6a0c - <rustc_hir_analysis[7408769f7e89f40d]::check::compare_impl_item::RemapHiddenTyRegions as rustc_type_ir[5ab55af5d1323a37]::fold::FallibleTypeFolder<rustc_middle[454e73a6dc67a815]::ty::context::TyCtxt>>::try_fold_region
18: 0x79ccaa86d7cf - <rustc_middle[454e73a6dc67a815]::ty::generic_args::GenericArg as rustc_type_ir[5ab55af5d1323a37]::fold::TypeFoldable<rustc_middle[454e73a6dc67a815]::ty::context::TyCtxt>>::try_fold_with::<rustc_hir_analysis[7408769f7e89f40d]::check::compare_impl_item::RemapHiddenTyRegions>
19: 0x79ccaa8e6325 - <rustc_hir_analysis[7408769f7e89f40d]::check::compare_impl_item::RemapHiddenTyRegions as rustc_type_ir[5ab55af5d1323a37]::fold::FallibleTypeFolder<rustc_middle[454e73a6dc67a815]::ty::context::TyCtxt>>::try_fold_ty
20: 0x79ccaa92c8ee - rustc_hir_analysis[7408769f7e89f40d]::check::compare_impl_item::collect_return_position_impl_trait_in_trait_tys::{closure#0}
21: 0x79ccab13bcf3 - rustc_query_impl[9d4e2ec78ebde536]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9d4e2ec78ebde536]::query_impl::collect_return_position_impl_trait_in_trait_tys::dynamic_query::{closure#2}::{closure#0}, rustc_middle[454e73a6dc67a815]::query::erase::Erased<[u8; 8usize]>>
22: 0x79ccabfa9dee - rustc_query_system[d8e0298fbce79578]::query::plumbing::try_execute_query::<rustc_query_impl[9d4e2ec78ebde536]::DynamicConfig<rustc_query_system[d8e0298fbce79578]::query::caches::DefIdCache<rustc_middle[454e73a6dc67a815]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[9d4e2ec78ebde536]::plumbing::QueryCtxt, false>
23: 0x79ccab13f6ce - rustc_query_impl[9d4e2ec78ebde536]::query_impl::collect_return_position_impl_trait_in_trait_tys::get_query_non_incr::__rust_end_short_backtrace
24: 0x79ccac3cd0c0 - rustc_middle[454e73a6dc67a815]::query::plumbing::query_get_at::<rustc_query_system[d8e0298fbce79578]::query::caches::DefIdCache<rustc_middle[454e73a6dc67a815]::query::erase::Erased<[u8; 8usize]>>>
25: 0x79cca8f5af7e - rustc_hir_analysis[7408769f7e89f40d]::collect::type_of::type_of
26: 0x79ccabfab1aa - rustc_query_impl[9d4e2ec78ebde536]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9d4e2ec78ebde536]::query_impl::type_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[454e73a6dc67a815]::query::erase::Erased<[u8; 8usize]>>
27: 0x79ccabfa9dee - rustc_query_system[d8e0298fbce79578]::query::plumbing::try_execute_query::<rustc_query_impl[9d4e2ec78ebde536]::DynamicConfig<rustc_query_system[d8e0298fbce79578]::query::caches::DefIdCache<rustc_middle[454e73a6dc67a815]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[9d4e2ec78ebde536]::plumbing::QueryCtxt, false>
28: 0x79ccabfa99a7 - rustc_query_impl[9d4e2ec78ebde536]::query_impl::type_of::get_query_non_incr::__rust_end_short_backtrace
29: 0x79ccac3cd0c0 - rustc_middle[454e73a6dc67a815]::query::plumbing::query_get_at::<rustc_query_system[d8e0298fbce79578]::query::caches::DefIdCache<rustc_middle[454e73a6dc67a815]::query::erase::Erased<[u8; 8usize]>>>
30: 0x79cca95946d0 - rustc_hir_analysis[7408769f7e89f40d]::check::wfcheck::check_well_formed
31: 0x79ccac779bc7 - rustc_query_impl[9d4e2ec78ebde536]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9d4e2ec78ebde536]::query_impl::check_well_formed::dynamic_query::{closure#2}::{closure#0}, rustc_middle[454e73a6dc67a815]::query::erase::Erased<[u8; 1usize]>>
32: 0x79ccac779e3e - rustc_query_system[d8e0298fbce79578]::query::plumbing::try_execute_query::<rustc_query_impl[9d4e2ec78ebde536]::DynamicConfig<rustc_query_system[d8e0298fbce79578]::query::caches::VecCache<rustc_hir[efc26d3c0a3a24aa]::hir_id::OwnerId, rustc_middle[454e73a6dc67a815]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[9d4e2ec78ebde536]::plumbing::QueryCtxt, false>
33: 0x79ccac779ba2 - rustc_query_impl[9d4e2ec78ebde536]::query_impl::check_well_formed::get_query_non_incr::__rust_end_short_backtrace
34: 0x79ccac77a97f - rustc_hir_analysis[7408769f7e89f40d]::check::wfcheck::check_mod_type_wf
35: 0x79ccac77a79f - rustc_query_impl[9d4e2ec78ebde536]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9d4e2ec78ebde536]::query_impl::check_mod_type_wf::dynamic_query::{closure#2}::{closure#0}, rustc_middle[454e73a6dc67a815]::query::erase::Erased<[u8; 1usize]>>
36: 0x79ccac778e7b - rustc_query_system[d8e0298fbce79578]::query::plumbing::try_execute_query::<rustc_query_impl[9d4e2ec78ebde536]::DynamicConfig<rustc_query_system[d8e0298fbce79578]::query::caches::DefaultCache<rustc_span[fcf79a5fd0f12046]::def_id::LocalModDefId, rustc_middle[454e73a6dc67a815]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[9d4e2ec78ebde536]::plumbing::QueryCtxt, false>
37: 0x79ccac778c2d - rustc_query_impl[9d4e2ec78ebde536]::query_impl::check_mod_type_wf::get_query_non_incr::__rust_end_short_backtrace
38: 0x79ccac0bb03b - rustc_hir_analysis[7408769f7e89f40d]::check_crate
39: 0x79ccac5ed73f - rustc_interface[71f2dea45baddd28]::passes::run_required_analyses
40: 0x79ccacc9a65e - rustc_interface[71f2dea45baddd28]::passes::analysis
41: 0x79ccacc9a631 - rustc_query_impl[9d4e2ec78ebde536]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9d4e2ec78ebde536]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[454e73a6dc67a815]::query::erase::Erased<[u8; 1usize]>>
42: 0x79ccacd79cae - rustc_query_system[d8e0298fbce79578]::query::plumbing::try_execute_query::<rustc_query_impl[9d4e2ec78ebde536]::DynamicConfig<rustc_query_system[d8e0298fbce79578]::query::caches::SingleCache<rustc_middle[454e73a6dc67a815]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[9d4e2ec78ebde536]::plumbing::QueryCtxt, false>
43: 0x79ccacd79a0f - rustc_query_impl[9d4e2ec78ebde536]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
44: 0x79ccacba2dae - rustc_interface[71f2dea45baddd28]::interface::run_compiler::<core[d1a550dca8d22a5b]::result::Result<(), rustc_span[fcf79a5fd0f12046]::ErrorGuaranteed>, rustc_driver_impl[bde591410b6ce234]::run_compiler::{closure#0}>::{closure#1}
45: 0x79ccacc555d0 - std[70086fc653812fb1]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[71f2dea45baddd28]::util::run_in_thread_with_globals<rustc_interface[71f2dea45baddd28]::util::run_in_thread_pool_with_globals<rustc_interface[71f2dea45baddd28]::interface::run_compiler<core[d1a550dca8d22a5b]::result::Result<(), rustc_span[fcf79a5fd0f12046]::ErrorGuaranteed>, rustc_driver_impl[bde591410b6ce234]::run_compiler::{closure#0}>::{closure#1}, core[d1a550dca8d22a5b]::result::Result<(), rustc_span[fcf79a5fd0f12046]::ErrorGuaranteed>>::{closure#0}, core[d1a550dca8d22a5b]::result::Result<(), rustc_span[fcf79a5fd0f12046]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[d1a550dca8d22a5b]::result::Result<(), rustc_span[fcf79a5fd0f12046]::ErrorGuaranteed>>
46: 0x79ccacc55c3a - <<std[70086fc653812fb1]::thread::Builder>::spawn_unchecked_<rustc_interface[71f2dea45baddd28]::util::run_in_thread_with_globals<rustc_interface[71f2dea45baddd28]::util::run_in_thread_pool_with_globals<rustc_interface[71f2dea45baddd28]::interface::run_compiler<core[d1a550dca8d22a5b]::result::Result<(), rustc_span[fcf79a5fd0f12046]::ErrorGuaranteed>, rustc_driver_impl[bde591410b6ce234]::run_compiler::{closure#0}>::{closure#1}, core[d1a550dca8d22a5b]::result::Result<(), rustc_span[fcf79a5fd0f12046]::ErrorGuaranteed>>::{closure#0}, core[d1a550dca8d22a5b]::result::Result<(), rustc_span[fcf79a5fd0f12046]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[d1a550dca8d22a5b]::result::Result<(), rustc_span[fcf79a5fd0f12046]::ErrorGuaranteed>>::{closure#1} as core[d1a550dca8d22a5b]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
47: 0x79ccacc55fab - std::sys::pal::unix::thread::Thread::new::thread_start::h6f36a038c6277257
48: 0x79ccae31839d - <unknown>
49: 0x79ccae39d49c - <unknown>
50: 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 1.82.0-nightly (a7399ba69 2024-08-31) running on x86_64-unknown-linux-gnu
query stack during panic:
#0 [collect_return_position_impl_trait_in_trait_tys] comparing an impl and trait method signature, inferring any hidden `impl Trait` types in the process
#1 [type_of] computing type of `<impl at /tmp/icemaker_global_tempdir.xgv2FYp3RLcf/rustc_testrunner_tmpdir_reporting.fx0w6Esy9qlw/mvce.rs:5:1: 5:17>::{synthetic#0}`
end of query stack
error: aborting due to 5 previous errors
For more information about this error, try `rustc --explain E0601`.