Closed
Description
Code
#![feature(type_alias_impl_trait)]
type T = impl Sized;
struct Foo;
impl Into<T> for Foo {
fn into(self) -> T {
Foo
}
}
fn main() {
let _: T = Foo.into();
}Error output
error: internal compiler error: compiler/rustc_middle/src/ty/instance.rs:413:18: failed to resolve instance for <Foo as Into<Foo>>::into
thread 'rustc' panicked at 'Box<dyn Any>', /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/compiler/rustc_errors/src/lib.rs:1650:9
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 (3b2073f07 2023-06-17) running on x86_64-unknown-linux-gnu
note: compiler flags: --crate-type bin -C embed-bitcode=no -C codegen-units=1 -C debuginfo=2
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 `playground` (bin "playground")
Backtrace
stack backtrace:
0: 0x7f9d25204e11 - std::backtrace_rs::backtrace::libunwind::trace::hd102c46c16771587
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
1: 0x7f9d25204e11 - std::backtrace_rs::backtrace::trace_unsynchronized::h6545cf7d6ed27551
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7f9d25204e11 - std::sys_common::backtrace::_print_fmt::h258fac35947dded0
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/std/src/sys_common/backtrace.rs:65:5
3: 0x7f9d25204e11 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf070a48cb28a24d1
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7f9d252664bf - core::fmt::rt::Argument::fmt::h0a093c27aabe85c6
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/core/src/fmt/rt.rs:138:9
5: 0x7f9d252664bf - core::fmt::write::h809e1a6b668324f6
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/core/src/fmt/mod.rs:1094:21
6: 0x7f9d251f7877 - std::io::Write::write_fmt::h2ed31d529426c73c
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/std/src/io/mod.rs:1713:15
7: 0x7f9d25204c25 - std::sys_common::backtrace::_print::h72058f630d074235
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7f9d25204c25 - std::sys_common::backtrace::print::h71140e0244457266
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7f9d252079d3 - std::panicking::default_hook::{{closure}}::h4cc812472591f5d0
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/std/src/panicking.rs:269:22
10: 0x7f9d25207764 - std::panicking::default_hook::h63cd13622fb98d85
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/std/src/panicking.rs:288:9
11: 0x7f9d2844a52b - <rustc_driver_impl[2635ae639440f84d]::install_ice_hook::{closure#0} as core[179bd5bdb7674514]::ops::function::FnOnce<(&core[179bd5bdb7674514]::panic::panic_info::PanicInfo,)>>::call_once::{shim:vtable#0}
12: 0x7f9d252081fe - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h2ecbaa31401232a8
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/alloc/src/boxed.rs:2007:9
13: 0x7f9d252081fe - std::panicking::rust_panic_with_hook::h521173c88e8eb80d
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/std/src/panicking.rs:709:13
14: 0x7f9d2894f2e1 - std[a820ec68793a1c54]::panicking::begin_panic::<rustc_errors[b597254c8f098bdb]::ExplicitBug>::{closure#0}
15: 0x7f9d2894df36 - std[a820ec68793a1c54]::sys_common::backtrace::__rust_end_short_backtrace::<std[a820ec68793a1c54]::panicking::begin_panic<rustc_errors[b597254c8f098bdb]::ExplicitBug>::{closure#0}, !>
16: 0x7f9d289e46f6 - std[a820ec68793a1c54]::panicking::begin_panic::<rustc_errors[b597254c8f098bdb]::ExplicitBug>
17: 0x7f9d2894ae74 - <rustc_errors[b597254c8f098bdb]::HandlerInner>::bug::<alloc[94daa9e91581ecb7]::string::String>
18: 0x7f9d2894acf6 - <rustc_errors[b597254c8f098bdb]::Handler>::bug::<alloc[94daa9e91581ecb7]::string::String>
19: 0x7f9d2899e46c - rustc_middle[2d6135a6a55a92f4]::util::bug::opt_span_bug_fmt::<rustc_span[9ec16770641762ee]::span_encoding::Span>::{closure#0}
20: 0x7f9d2899b30a - rustc_middle[2d6135a6a55a92f4]::ty::context::tls::with_opt::<rustc_middle[2d6135a6a55a92f4]::util::bug::opt_span_bug_fmt<rustc_span[9ec16770641762ee]::span_encoding::Span>::{closure#0}, !>::{closure#0}
21: 0x7f9d2899b2da - rustc_middle[2d6135a6a55a92f4]::ty::context::tls::with_context_opt::<rustc_middle[2d6135a6a55a92f4]::ty::context::tls::with_opt<rustc_middle[2d6135a6a55a92f4]::util::bug::opt_span_bug_fmt<rustc_span[9ec16770641762ee]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
22: 0x7f9d26781aed - rustc_middle[2d6135a6a55a92f4]::util::bug::bug_fmt
23: 0x7f9d27096d0c - rustc_monomorphize[5f07e8aed176c674]::collector::collect_used_items
24: 0x7f9d27086be0 - rustc_monomorphize[5f07e8aed176c674]::collector::collect_items_rec
25: 0x7f9d27728b93 - rustc_data_structures[3f82928326e7f17b]::sync::par_for_each_in::<alloc[94daa9e91581ecb7]::vec::Vec<rustc_middle[2d6135a6a55a92f4]::mir::mono::MonoItem>, rustc_monomorphize[5f07e8aed176c674]::collector::collect_crate_mono_items::{closure#1}::{closure#0}>
26: 0x7f9d277284b0 - <rustc_session[dc274bc86de11b2]::session::Session>::time::<(), rustc_monomorphize[5f07e8aed176c674]::collector::collect_crate_mono_items::{closure#1}>
27: 0x7f9d277280f8 - rustc_monomorphize[5f07e8aed176c674]::collector::collect_crate_mono_items
28: 0x7f9d27726687 - rustc_monomorphize[5f07e8aed176c674]::partitioning::collect_and_partition_mono_items
29: 0x7f9d27a381e9 - rustc_query_impl[56d56e55f89dc108]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[56d56e55f89dc108]::query_impl::collect_and_partition_mono_items::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2d6135a6a55a92f4]::query::erase::Erased<[u8; 24usize]>>
30: 0x7f9d27a381bb - <rustc_query_impl[56d56e55f89dc108]::query_impl::collect_and_partition_mono_items::dynamic_query::{closure#2} as core[179bd5bdb7674514]::ops::function::FnOnce<(rustc_middle[2d6135a6a55a92f4]::ty::context::TyCtxt, ())>>::call_once
31: 0x7f9d27b32fcc - rustc_query_system[820ba01abcedc11e]::query::plumbing::try_execute_query::<rustc_query_impl[56d56e55f89dc108]::DynamicConfig<rustc_query_system[820ba01abcedc11e]::query::caches::SingleCache<rustc_middle[2d6135a6a55a92f4]::query::erase::Erased<[u8; 24usize]>>, false, false, false>, rustc_query_impl[56d56e55f89dc108]::plumbing::QueryCtxt, false>
32: 0x7f9d27dbf60a - rustc_query_impl[56d56e55f89dc108]::query_impl::collect_and_partition_mono_items::get_query_non_incr::__rust_end_short_backtrace
33: 0x7f9d270aaa29 - rustc_codegen_ssa[48a71250af989085]::base::codegen_crate::<rustc_codegen_llvm[9635be2417e1ae72]::LlvmCodegenBackend>
34: 0x7f9d270aa7ff - <rustc_codegen_llvm[9635be2417e1ae72]::LlvmCodegenBackend as rustc_codegen_ssa[48a71250af989085]::traits::backend::CodegenBackend>::codegen_crate
35: 0x7f9d27974652 - <rustc_session[dc274bc86de11b2]::session::Session>::time::<alloc[94daa9e91581ecb7]::boxed::Box<dyn core[179bd5bdb7674514]::any::Any>, rustc_interface[b727bedca2f0eb3b]::passes::start_codegen::{closure#0}>
36: 0x7f9d279741cb - rustc_interface[b727bedca2f0eb3b]::passes::start_codegen
37: 0x7f9d2796ef2d - <rustc_middle[2d6135a6a55a92f4]::ty::context::GlobalCtxt>::enter::<<rustc_interface[b727bedca2f0eb3b]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[179bd5bdb7674514]::result::Result<alloc[94daa9e91581ecb7]::boxed::Box<dyn core[179bd5bdb7674514]::any::Any>, rustc_span[9ec16770641762ee]::ErrorGuaranteed>>
38: 0x7f9d2796e15d - <rustc_interface[b727bedca2f0eb3b]::queries::Queries>::ongoing_codegen
39: 0x7f9d2796d280 - <rustc_interface[b727bedca2f0eb3b]::interface::Compiler>::enter::<rustc_driver_impl[2635ae639440f84d]::run_compiler::{closure#1}::{closure#2}, core[179bd5bdb7674514]::result::Result<core[179bd5bdb7674514]::option::Option<rustc_interface[b727bedca2f0eb3b]::queries::Linker>, rustc_span[9ec16770641762ee]::ErrorGuaranteed>>
40: 0x7f9d2796a8b1 - std[a820ec68793a1c54]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[b727bedca2f0eb3b]::util::run_in_thread_pool_with_globals<rustc_interface[b727bedca2f0eb3b]::interface::run_compiler<core[179bd5bdb7674514]::result::Result<(), rustc_span[9ec16770641762ee]::ErrorGuaranteed>, rustc_driver_impl[2635ae639440f84d]::run_compiler::{closure#1}>::{closure#0}, core[179bd5bdb7674514]::result::Result<(), rustc_span[9ec16770641762ee]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[179bd5bdb7674514]::result::Result<(), rustc_span[9ec16770641762ee]::ErrorGuaranteed>>
41: 0x7f9d2796a035 - <<std[a820ec68793a1c54]::thread::Builder>::spawn_unchecked_<rustc_interface[b727bedca2f0eb3b]::util::run_in_thread_pool_with_globals<rustc_interface[b727bedca2f0eb3b]::interface::run_compiler<core[179bd5bdb7674514]::result::Result<(), rustc_span[9ec16770641762ee]::ErrorGuaranteed>, rustc_driver_impl[2635ae639440f84d]::run_compiler::{closure#1}>::{closure#0}, core[179bd5bdb7674514]::result::Result<(), rustc_span[9ec16770641762ee]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[179bd5bdb7674514]::result::Result<(), rustc_span[9ec16770641762ee]::ErrorGuaranteed>>::{closure#1} as core[179bd5bdb7674514]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
42: 0x7f9d25212685 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7557df74034f0cd4
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/alloc/src/boxed.rs:1993:9
43: 0x7f9d25212685 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha799d8f85cbbc72f
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/alloc/src/boxed.rs:1993:9
44: 0x7f9d25212685 - std::sys::unix::thread::Thread::new::thread_start::h88ab86e849d99fd7
at /rustc/3b2073f0762cff4d3d625bb10017e0ce4e7abe50/library/std/src/sys/unix/thread.rs:108:17
45: 0x7f9d250de609 - start_thread
46: 0x7f9d25001133 - clone
47: 0x0 - <unknown>