Closed
Description
The following code produces two different ICEs when compiling with stable and nightly respectively:
use std::path::Path;
use std::thread;
use std::ffi::OsStr;
pub struct Music {
path: String,
}
fn main() {
}
impl Music {
fn start(&mut self, time: Option<i32>) {
if let Some(time) = time {
let path = self.path.clone();
thread::spawn(move || match Path::new(&self.path).extension() {
Some(OsStr::new("ogg")) => {},
_ => {}
});
}
()
}
}On stable 1.30.1 x86_64-pc-windows-msvc this produces:
thread 'main' panicked at 'expected fn type', libcore\option.rs:1000:5
stack backtrace:
0: <std::sys::windows::args::Args as core::ops::drop::Drop>::drop
1: <std::ffi::os_str::OsString as std::sys_common::IntoInner<std::sys::windows::os_str::Buf>>::into_inner
2: std::panicking::take_hook
3: std::panicking::take_hook
4: <rustc::ty::sty::Binder<rustc::ty::ProjectionPredicate<'tcx>> as rustc::ty::ToPredicate<'tcx>>::to_predicate
5: std::panicking::rust_panic_with_hook
6: std::panicking::begin_panic_fmt
7: rust_begin_unwind
8: core::panicking::panic_fmt
9: core::option::expect_failed
10: <unknown>
11: <unknown>
12: <unknown>
13: <unknown>
14: <rustc_typeck::check::method::suggest::TraitInfo as core::cmp::PartialOrd>::partial_cmp
15: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
16: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
17: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
18: <rustc_typeck::check::GatherLocalsVisitor<'a, 'gcx, 'tcx> as rustc::hir::intravisit::Visitor<'gcx>>::visit_pat
19: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
20: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
21: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
22: <unknown>
23: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
24: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
25: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
26: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
27: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
28: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
29: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
30: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
31: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
32: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
33: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
34: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::record_ty
35: <rustc_typeck::check::GatherLocalsVisitor<'a, 'gcx, 'tcx> as rustc::hir::intravisit::Visitor<'gcx>>::visit_pat
36: <rustc_typeck::check::method::suggest::TraitInfo as core::cmp::PartialOrd>::partial_cmp
37: <rustc_typeck::astconv::Bounds<'tcx> as core::fmt::Debug>::fmt
38: <rustc_typeck::check::CheckItemTypesVisitor<'a, 'tcx> as rustc::hir::itemlikevisit::ItemLikeVisitor<'tcx>>::visit_item
39: rustc::ty::query::on_disk_cache::__ty_decoder_impl::<impl serialize::serialize::Decoder for rustc::ty::query::on_disk_cache::CacheDecoder<'a, 'tcx, 'x>>::read_str
40: rustc::ty::query::on_disk_cache::__ty_decoder_impl::<impl serialize::serialize::Decoder for rustc::ty::query::on_disk_cache::CacheDecoder<'a, 'tcx, 'x>>::read_str
41: rustc::ty::context::tls::track_diagnostic
42: rustc::dep_graph::graph::DepGraph::assert_ignored
43: rustc::ty::context::tls::track_diagnostic
44: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::try_print_query_stack
45: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::try_print_query_stack
46: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::try_print_query_stack
47: <rustc_typeck::check::CheckItemTypesVisitor<'a, 'tcx> as rustc::hir::itemlikevisit::ItemLikeVisitor<'tcx>>::visit_item
48: rustc::ty::query::on_disk_cache::__ty_decoder_impl::<impl serialize::serialize::Decoder for rustc::ty::query::on_disk_cache::CacheDecoder<'a, 'tcx, 'x>>::read_str
49: rustc::ty::context::tls::track_diagnostic
50: rustc::dep_graph::graph::DepGraph::assert_ignored
51: rustc::ty::context::tls::track_diagnostic
52: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::try_print_query_stack
53: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::try_print_query_stack
54: rustc_typeck::check_crate
55: <unknown>
56: <rustc_driver::pretty::IdentifiedAnnotation<'hir> as rustc_driver::pretty::HirPrinterSupport<'hir>>::sess
57: <rustc_driver::CompilationFailure as core::fmt::Debug>::fmt
58: rustc_driver::driver::compile_input
59: rustc_driver::run_compiler
60: <env_logger::filter::inner::Filter as core::fmt::Display>::fmt
61: rustc_driver::run_compiler
62: <env_logger::filter::inner::Filter as core::fmt::Display>::fmt
63: _rust_maybe_catch_panic
64: rustc_driver::profile::dump
65: rustc_driver::main
66: <unknown>
67: std::panicking::update_panic_count
68: _rust_maybe_catch_panic
69: std::rt::lang_start_internal
70: <unknown>
71: <unknown>
72: BaseThreadInitThunk
73: RtlUserThreadStart
query stack during panic:
#0 [typeck_tables_of] processing `Music::start`
#1 [typeck_item_bodies] type-checking all item bodies
end of query stack
error: internal compiler error: unexpected panic
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
note: rustc 1.30.1 (1433507eb 2018-11-07) running on x86_64-pc-windows-msvc
note: compiler flags: -C debuginfo=2 -C incremental --crate-type bin
note: some of the compiler flags provided by cargo are hidden
error: Could not compile `ICE_test`.
To learn more, run the command again with --verbose.
On nightly 1.32.0 x86_64-pc-windows-msvc this produces:
error[E0164]: expected tuple struct/variant, found method `<OsStr>::new`
--> src\main.rs:17:22
|
17 | Some(OsStr::new("ogg")) => {},
| ^^^^^^^^^^^^^^^^^ not a tuple variant or struct
error: internal compiler error: src\librustc\middle\mem_categorization.rs:1302: tuple struct pattern didn't resolve to variant or struct Method(DefId(1/0:1527 ~ std[8a2d]::ffi[0]::os_str[0]::{{impl}}[17]::new[0]))
--> src\main.rs:17:22
|
17 | Some(OsStr::new("ogg")) => {},
| ^^^^^^^^^^^^^^^^^
thread 'main' panicked at 'Box<Any>', src\librustc_errors\lib.rs:538:9
stack backtrace:
0: std::sys_common::alloc::realloc_fallback
1: std::panicking::take_hook
2: std::panicking::take_hook
3: rustc::ty::structural_impls::<impl rustc::ty::context::Lift<'tcx> for rustc::ty::instance::InstanceDef<'a>>::lift_to_tcx
4: std::panicking::rust_panic_with_hook
5: <rustc::hir::intravisit::IdRange as core::fmt::Debug>::fmt
6: rustc::session::CrateDisambiguator::to_fingerprint
7: rustc::ty::context::tls::track_diagnostic
8: rustc::ty::context::tls::track_diagnostic
9: rustc::ty::context::tls::track_diagnostic
10: rustc::ty::context::tls::track_diagnostic
11: rustc::util::bug::bug_fmt
12: rustc::util::bug::bug_fmt
13: rustc::middle::mem_categorization::MemCategorizationContext::cat_rvalue
14: rustc::middle::mem_categorization::MemCategorizationContext::cat_rvalue
15: rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr
16: rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr
17: rustc::middle::expr_use_visitor::ExprUseVisitor::consume_body
18: <rustc_typeck::collect::ItemCtxt<'a, 'tcx> as rustc_typeck::astconv::AstConv<'tcx, 'tcx>>::set_tainted_by_errors
19: <rustc_typeck::check::upvar::InferBorrowKindVisitor<'a, 'gcx, 'tcx> as rustc::hir::intravisit::Visitor<'gcx>>::visit_expr
20: <rustc_typeck::check::PathSeg as core::fmt::Debug>::fmt
21: <rustc_typeck::check::PathSeg as core::fmt::Debug>::fmt
22: <rustc_typeck::check::PathSeg as core::fmt::Debug>::fmt
23: <rustc_typeck::check::PathSeg as core::fmt::Debug>::fmt
24: <rustc_typeck::namespace::Namespace as core::fmt::Debug>::fmt
25: <rustc_typeck::outlives::implicit_infer::IgnoreSelfTy as core::fmt::Debug>::fmt
26: <rustc_typeck::check::CheckItemTypesVisitor<'a, 'tcx> as rustc::hir::itemlikevisit::ItemLikeVisitor<'tcx>>::visit_item
27: <rustc::traits::query::type_op::subtype::Subtype<'tcx> as core::fmt::Debug>::fmt
28: rustc::ty::context::tls::track_diagnostic
29: rustc::ty::context::tls::track_diagnostic
30: rustc::dep_graph::graph::DepGraph::assert_ignored
31: rustc::ty::context::tls::track_diagnostic
32: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::try_print_query_stack
33: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::try_print_query_stack
34: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::try_print_query_stack
35: <rustc_typeck::check::CheckItemTypesVisitor<'a, 'tcx> as rustc::hir::itemlikevisit::ItemLikeVisitor<'tcx>>::visit_item
36: rustc::ty::context::tls::track_diagnostic
37: rustc::ty::context::tls::track_diagnostic
38: rustc::dep_graph::graph::DepGraph::assert_ignored
39: rustc::ty::context::tls::track_diagnostic
40: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::try_print_query_stack
41: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::try_print_query_stack
42: rustc_typeck::check_crate
43: <humantime::wrapper::Duration as core::convert::Into<core::time::Duration>>::into
44: <rustc_driver::pretty::IdentifiedAnnotation<'hir> as rustc_driver::pretty::HirPrinterSupport<'hir>>::sess
45: <humantime::wrapper::Duration as core::convert::Into<core::time::Duration>>::into
46: rustc_driver::driver::compile_input
47: rustc_driver::run_compiler
48: rustc_driver::driver::build_output_filenames
49: rustc_driver::run_compiler
50: <rustc_driver::derive_registrar::Finder as rustc::hir::itemlikevisit::ItemLikeVisitor<'v>>::visit_item
51: _rust_maybe_catch_panic
52: rustc_driver::profile::dump
53: rustc_driver::main
54: <unknown>
55: std::panicking::update_panic_count
56: _rust_maybe_catch_panic
57: std::rt::lang_start_internal
58: <unknown>
59: <unknown>
60: BaseThreadInitThunk
61: RtlUserThreadStart
query stack during panic:
#0 [typeck_tables_of] processing `Music::start`
#1 [typeck_item_bodies] type-checking all item bodies
end of query stack
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0164`.
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
note: rustc 1.32.0-nightly (1f57e4841 2018-11-23) running on x86_64-pc-windows-msvc
note: compiler flags: -C debuginfo=2 -C incremental --crate-type bin
note: some of the compiler flags provided by cargo are hidden
error: Could not compile `ICE_test`.
To learn more, run the command again with --verbose.
I have tried to minimize the code required to produce this, but it may be possible to simplify further.