Closed
Description
Code
#![feature(return_position_impl_trait_in_trait)]
struct Wrapper<G: Send>(T);
trait Foo {
fn bar() -> Wrapper<impl Sized>;
}Meta
rustc --version --verbose:
rustc 1.72.0-nightly (7cc3da05f 2023-07-07)
binary: rustc
commit-hash: 7cc3da05f99fbc89782fc6cb7e207fa11aa6add5
commit-date: 2023-07-07
host: x86_64-unknown-linux-gnu
release: 1.72.0-nightly
LLVM version: 16.0.5
Error output
error[E0412]: cannot find type `T` in this scope
--> treereduce.out:3:25
|
3 | struct Wrapper<G: Send>(T);
| - ^
| |
| similarly named type parameter `G` defined here
|
help: a type parameter with a similar name exists
|
3 | struct Wrapper<G: Send>(G);
| ~
help: you might be missing a type parameter
|
3 | struct Wrapper<G: Send, T>(T);
| +++
error[E0601]: `main` function not found in crate `treereduce`
--> treereduce.out:7:2
|
7 | }
| ^ consider adding a `main` function to `treereduce.out`
Backtrace
error: internal compiler error: compiler/rustc_hir_analysis/src/collect/type_of.rs:449:25: tried to get type of this RPITIT with no definition
--> treereduce.out:6:25
|
6 | fn bar() -> Wrapper<impl Sized>;
| ^^^^^^^^^^
thread 'rustc' panicked at 'Box<dyn Any>', /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/compiler/rustc_errors/src/lib.rs:995:33
stack backtrace:
0: 0x7f0f73763a71 - std::backtrace_rs::backtrace::libunwind::trace::ha9eb60b7e9595e43
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
1: 0x7f0f73763a71 - std::backtrace_rs::backtrace::trace_unsynchronized::h4b381e53365308cd
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7f0f73763a71 - std::sys_common::backtrace::_print_fmt::h13219a32c4092344
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/std/src/sys_common/backtrace.rs:65:5
3: 0x7f0f73763a71 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h37c35e5b57c1a1e8
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7f0f737c9d7f - core::fmt::rt::Argument::fmt::h24cb19a613845dee
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/core/src/fmt/rt.rs:138:9
5: 0x7f0f737c9d7f - core::fmt::write::h62d070c7ceeab948
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/core/src/fmt/mod.rs:1094:21
6: 0x7f0f737564b7 - std::io::Write::write_fmt::h92df2d506a8d4373
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/std/src/io/mod.rs:1714:15
7: 0x7f0f73763885 - std::sys_common::backtrace::_print::he4455f5d3168b7ed
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7f0f73763885 - std::sys_common::backtrace::print::h017586ca1c39223e
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7f0f73766663 - std::panicking::default_hook::{{closure}}::h3dc1335f6a07681e
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/std/src/panicking.rs:269:22
10: 0x7f0f737663f4 - std::panicking::default_hook::hc2cfda04971b7526
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/std/src/panicking.rs:288:9
11: 0x7f0f76a5763b - rustc_driver_impl[2c8644295fefa5d3]::install_ice_hook::{closure#0}
12: 0x7f0f73766e8e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h09569cbca6d2954c
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/alloc/src/boxed.rs:2007:9
13: 0x7f0f73766e8e - std::panicking::rust_panic_with_hook::h711ce0c3c756b372
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/std/src/panicking.rs:709:13
14: 0x7f0f76b9acd1 - std[b168e09260424fec]::panicking::begin_panic::<rustc_errors[7976e2d93b709148]::ExplicitBug>::{closure#0}
15: 0x7f0f76b9a3a6 - std[b168e09260424fec]::sys_common::backtrace::__rust_end_short_backtrace::<std[b168e09260424fec]::panicking::begin_panic<rustc_errors[7976e2d93b709148]::ExplicitBug>::{closure#0}, !>
16: 0x7f0f76b66796 - std[b168e09260424fec]::panicking::begin_panic::<rustc_errors[7976e2d93b709148]::ExplicitBug>
17: 0x7f0f76ba2ece - <rustc_errors[7976e2d93b709148]::HandlerInner>::span_bug::<rustc_span[33767492b6b5a02]::span_encoding::Span, alloc[ab7c3a594cfea29c]::string::String>
18: 0x7f0f76ba2d5d - <rustc_errors[7976e2d93b709148]::Handler>::span_bug::<rustc_span[33767492b6b5a02]::span_encoding::Span, alloc[ab7c3a594cfea29c]::string::String>
19: 0x7f0f76bd1f0d - rustc_middle[552c7c9d188a2017]::util::bug::opt_span_bug_fmt::<rustc_span[33767492b6b5a02]::span_encoding::Span>::{closure#0}
20: 0x7f0f76bd1f3a - rustc_middle[552c7c9d188a2017]::ty::context::tls::with_opt::<rustc_middle[552c7c9d188a2017]::util::bug::opt_span_bug_fmt<rustc_span[33767492b6b5a02]::span_encoding::Span>::{closure#0}, !>::{closure#0}
21: 0x7f0f76bd0b1a - rustc_middle[552c7c9d188a2017]::ty::context::tls::with_context_opt::<rustc_middle[552c7c9d188a2017]::ty::context::tls::with_opt<rustc_middle[552c7c9d188a2017]::util::bug::opt_span_bug_fmt<rustc_span[33767492b6b5a02]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
22: 0x7f0f76bd0984 - rustc_middle[552c7c9d188a2017]::util::bug::span_bug_fmt::<rustc_span[33767492b6b5a02]::span_encoding::Span>
23: 0x7f0f75bc241b - rustc_hir_analysis[90b95fe540d9f783]::collect::type_of::type_of
24: 0x7f0f74bb3a03 - rustc_query_impl[da0a9e5c9406df23]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[da0a9e5c9406df23]::query_impl::type_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[552c7c9d188a2017]::query::erase::Erased<[u8; 8usize]>>
25: 0x7f0f74bb39c0 - <rustc_query_impl[da0a9e5c9406df23]::query_impl::type_of::dynamic_query::{closure#2} as core[60225dfec80b3f9a]::ops::function::FnOnce<(rustc_middle[552c7c9d188a2017]::ty::context::TyCtxt, rustc_span[33767492b6b5a02]::def_id::DefId)>>::call_once
26: 0x7f0f74a78ec5 - rustc_query_system[5ae56448178afbd9]::query::plumbing::try_execute_query::<rustc_query_impl[da0a9e5c9406df23]::DynamicConfig<rustc_query_system[5ae56448178afbd9]::query::caches::DefaultCache<rustc_span[33767492b6b5a02]::def_id::DefId, rustc_middle[552c7c9d188a2017]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[da0a9e5c9406df23]::plumbing::QueryCtxt, false>
27: 0x7f0f7639e893 - rustc_query_impl[da0a9e5c9406df23]::query_impl::type_of::get_query_non_incr::__rust_end_short_backtrace
28: 0x7f0f74ce968a - rustc_middle[552c7c9d188a2017]::query::plumbing::query_get_at::<rustc_query_system[5ae56448178afbd9]::query::caches::DefaultCache<rustc_span[33767492b6b5a02]::def_id::DefId, rustc_middle[552c7c9d188a2017]::query::erase::Erased<[u8; 8usize]>>>
29: 0x7f0f74cd9e14 - <rustc_trait_selection[14451b4dfb15a533]::traits::select::SelectionContext>::select
30: 0x7f0f74caaf67 - <rustc_trait_selection[14451b4dfb15a533]::traits::fulfill::FulfillProcessor as rustc_data_structures[c1611a994bbf6062]::obligation_forest::ObligationProcessor>::process_obligation
31: 0x7f0f74ca8174 - <rustc_data_structures[c1611a994bbf6062]::obligation_forest::ObligationForest<rustc_trait_selection[14451b4dfb15a533]::traits::fulfill::PendingPredicateObligation>>::process_obligations::<rustc_trait_selection[14451b4dfb15a533]::traits::fulfill::FulfillProcessor>
32: 0x7f0f757567f0 - <rustc_trait_selection[14451b4dfb15a533]::traits::engine::ObligationCtxt>::assumed_wf_types_and_report_errors
33: 0x7f0f75750272 - rustc_hir_analysis[90b95fe540d9f783]::check::wfcheck::check_associated_item
34: 0x7f0f7574b0ec - rustc_hir_analysis[90b95fe540d9f783]::check::wfcheck::check_well_formed
35: 0x7f0f74a318fc - rustc_query_impl[da0a9e5c9406df23]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[da0a9e5c9406df23]::query_impl::check_well_formed::dynamic_query::{closure#2}::{closure#0}, rustc_middle[552c7c9d188a2017]::query::erase::Erased<[u8; 0usize]>>
36: 0x7f0f75282d86 - rustc_query_system[5ae56448178afbd9]::query::plumbing::try_execute_query::<rustc_query_impl[da0a9e5c9406df23]::DynamicConfig<rustc_query_system[5ae56448178afbd9]::query::caches::VecCache<rustc_hir[cca41b40a34d6c6b]::hir_id::OwnerId, rustc_middle[552c7c9d188a2017]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[da0a9e5c9406df23]::plumbing::QueryCtxt, false>
37: 0x7f0f75282ad4 - rustc_query_impl[da0a9e5c9406df23]::query_impl::check_well_formed::get_query_non_incr::__rust_end_short_backtrace
38: 0x7f0f75d55d03 - std[b168e09260424fec]::panicking::try::<(), core[60225dfec80b3f9a]::panic::unwind_safe::AssertUnwindSafe<rustc_data_structures[c1611a994bbf6062]::sync::par_for_each_in<&[rustc_hir[cca41b40a34d6c6b]::hir::ForeignItemId], <rustc_middle[552c7c9d188a2017]::hir::ModuleItems>::par_foreign_items<rustc_hir_analysis[90b95fe540d9f783]::check::wfcheck::check_mod_type_wf::{closure#3}>::{closure#0}>::{closure#0}::{closure#0}>>
39: 0x7f0f75d55b57 - rustc_data_structures[c1611a994bbf6062]::sync::par_for_each_in::<&[rustc_hir[cca41b40a34d6c6b]::hir::TraitItemId], <rustc_middle[552c7c9d188a2017]::hir::ModuleItems>::par_trait_items<rustc_hir_analysis[90b95fe540d9f783]::check::wfcheck::check_mod_type_wf::{closure#2}>::{closure#0}>
40: 0x7f0f75d55a66 - rustc_hir_analysis[90b95fe540d9f783]::check::wfcheck::check_mod_type_wf
41: 0x7f0f7571c8ec - rustc_query_impl[da0a9e5c9406df23]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[da0a9e5c9406df23]::query_impl::check_mod_type_wf::dynamic_query::{closure#2}::{closure#0}, rustc_middle[552c7c9d188a2017]::query::erase::Erased<[u8; 0usize]>>
42: 0x7f0f7571c8ce - <rustc_query_impl[da0a9e5c9406df23]::query_impl::check_mod_type_wf::dynamic_query::{closure#2} as core[60225dfec80b3f9a]::ops::function::FnOnce<(rustc_middle[552c7c9d188a2017]::ty::context::TyCtxt, rustc_span[33767492b6b5a02]::def_id::LocalDefId)>>::call_once
43: 0x7f0f7517263f - rustc_query_system[5ae56448178afbd9]::query::plumbing::try_execute_query::<rustc_query_impl[da0a9e5c9406df23]::DynamicConfig<rustc_query_system[5ae56448178afbd9]::query::caches::VecCache<rustc_span[33767492b6b5a02]::def_id::LocalDefId, rustc_middle[552c7c9d188a2017]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[da0a9e5c9406df23]::plumbing::QueryCtxt, false>
44: 0x7f0f76397a84 - rustc_query_impl[da0a9e5c9406df23]::query_impl::check_mod_type_wf::get_query_non_incr::__rust_end_short_backtrace
45: 0x7f0f75e78b85 - std[b168e09260424fec]::panicking::try::<(), core[60225dfec80b3f9a]::panic::unwind_safe::AssertUnwindSafe<rustc_data_structures[c1611a994bbf6062]::sync::par_for_each_in<&[rustc_hir[cca41b40a34d6c6b]::hir_id::OwnerId], <rustc_middle[552c7c9d188a2017]::hir::map::Map>::par_for_each_module<rustc_hir_analysis[90b95fe540d9f783]::check_crate::{closure#5}::{closure#0}::{closure#0}>::{closure#0}>::{closure#0}::{closure#0}>>
46: 0x7f0f75e78aa7 - rustc_data_structures[c1611a994bbf6062]::sync::par_for_each_in::<&[rustc_hir[cca41b40a34d6c6b]::hir_id::OwnerId], <rustc_middle[552c7c9d188a2017]::hir::map::Map>::par_for_each_module<rustc_hir_analysis[90b95fe540d9f783]::check_crate::{closure#5}::{closure#0}::{closure#0}>::{closure#0}>
47: 0x7f0f75e78877 - <rustc_session[e531b74a05efb0ed]::session::Session>::track_errors::<rustc_hir_analysis[90b95fe540d9f783]::check_crate::{closure#5}, ()>
48: 0x7f0f75e7671f - rustc_hir_analysis[90b95fe540d9f783]::check_crate
49: 0x7f0f75e6d7ba - rustc_interface[32a8ee385a384e74]::passes::analysis
50: 0x7f0f75f098ba - rustc_query_impl[da0a9e5c9406df23]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[da0a9e5c9406df23]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[552c7c9d188a2017]::query::erase::Erased<[u8; 1usize]>>
51: 0x7f0f75f098a9 - <rustc_query_impl[da0a9e5c9406df23]::query_impl::analysis::dynamic_query::{closure#2} as core[60225dfec80b3f9a]::ops::function::FnOnce<(rustc_middle[552c7c9d188a2017]::ty::context::TyCtxt, ())>>::call_once
52: 0x7f0f7608bc28 - rustc_query_system[5ae56448178afbd9]::query::plumbing::try_execute_query::<rustc_query_impl[da0a9e5c9406df23]::DynamicConfig<rustc_query_system[5ae56448178afbd9]::query::caches::SingleCache<rustc_middle[552c7c9d188a2017]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[da0a9e5c9406df23]::plumbing::QueryCtxt, false>
53: 0x7f0f7608b9f9 - rustc_query_impl[da0a9e5c9406df23]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
54: 0x7f0f75c59325 - <rustc_middle[552c7c9d188a2017]::ty::context::GlobalCtxt>::enter::<rustc_driver_impl[2c8644295fefa5d3]::run_compiler::{closure#1}::{closure#2}::{closure#4}, core[60225dfec80b3f9a]::result::Result<(), rustc_span[33767492b6b5a02]::ErrorGuaranteed>>
55: 0x7f0f75c58952 - <rustc_interface[32a8ee385a384e74]::interface::Compiler>::enter::<rustc_driver_impl[2c8644295fefa5d3]::run_compiler::{closure#1}::{closure#2}, core[60225dfec80b3f9a]::result::Result<core[60225dfec80b3f9a]::option::Option<rustc_interface[32a8ee385a384e74]::queries::Linker>, rustc_span[33767492b6b5a02]::ErrorGuaranteed>>
56: 0x7f0f75c4f665 - rustc_span[33767492b6b5a02]::set_source_map::<core[60225dfec80b3f9a]::result::Result<(), rustc_span[33767492b6b5a02]::ErrorGuaranteed>, rustc_interface[32a8ee385a384e74]::interface::run_compiler<core[60225dfec80b3f9a]::result::Result<(), rustc_span[33767492b6b5a02]::ErrorGuaranteed>, rustc_driver_impl[2c8644295fefa5d3]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
57: 0x7f0f75c4f0d6 - <scoped_tls[f7286f318c19c9e0]::ScopedKey<rustc_span[33767492b6b5a02]::SessionGlobals>>::set::<rustc_interface[32a8ee385a384e74]::interface::run_compiler<core[60225dfec80b3f9a]::result::Result<(), rustc_span[33767492b6b5a02]::ErrorGuaranteed>, rustc_driver_impl[2c8644295fefa5d3]::run_compiler::{closure#1}>::{closure#0}, core[60225dfec80b3f9a]::result::Result<(), rustc_span[33767492b6b5a02]::ErrorGuaranteed>>
58: 0x7f0f75c4e69c - std[b168e09260424fec]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[32a8ee385a384e74]::util::run_in_thread_pool_with_globals<rustc_interface[32a8ee385a384e74]::interface::run_compiler<core[60225dfec80b3f9a]::result::Result<(), rustc_span[33767492b6b5a02]::ErrorGuaranteed>, rustc_driver_impl[2c8644295fefa5d3]::run_compiler::{closure#1}>::{closure#0}, core[60225dfec80b3f9a]::result::Result<(), rustc_span[33767492b6b5a02]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[60225dfec80b3f9a]::result::Result<(), rustc_span[33767492b6b5a02]::ErrorGuaranteed>>
59: 0x7f0f75c4e465 - <<std[b168e09260424fec]::thread::Builder>::spawn_unchecked_<rustc_interface[32a8ee385a384e74]::util::run_in_thread_pool_with_globals<rustc_interface[32a8ee385a384e74]::interface::run_compiler<core[60225dfec80b3f9a]::result::Result<(), rustc_span[33767492b6b5a02]::ErrorGuaranteed>, rustc_driver_impl[2c8644295fefa5d3]::run_compiler::{closure#1}>::{closure#0}, core[60225dfec80b3f9a]::result::Result<(), rustc_span[33767492b6b5a02]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[60225dfec80b3f9a]::result::Result<(), rustc_span[33767492b6b5a02]::ErrorGuaranteed>>::{closure#1} as core[60225dfec80b3f9a]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
60: 0x7f0f73771305 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbcd8640e4284e53b
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/alloc/src/boxed.rs:1993:9
61: 0x7f0f73771305 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h56beffb9a0c5518d
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/alloc/src/boxed.rs:1993:9
62: 0x7f0f73771305 - std::sys::unix::thread::Thread::new::thread_start::he7634fd99f9e4d01
at /rustc/7cc3da05f99fbc89782fc6cb7e207fa11aa6add5/library/std/src/sys/unix/thread.rs:108:17
63: 0x7f0f7350444b - <unknown>
64: 0x7f0f73587e40 - <unknown>
65: 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: rustc 1.72.0-nightly (7cc3da05f 2023-07-07) running on x86_64-unknown-linux-gnu
query stack during panic:
#0 [type_of] computing type of `Foo::bar::{opaque#0}`
#1 [check_well_formed] checking that `Foo::bar` is well-formed
#2 [check_mod_type_wf] checking that types are well-formed in top-level module
#3 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0412, E0601.
For more information about an error, try `rustc --explain E0412`.