Closed
Description
Steps to Reproduce
$ cargo new deprecate_crash
Created binary (application) `deprecate_crash` package
Friendly_Name /cygdrive/c/Users/eric/Documents/projects/cevi-versand (master)
$ vim deprecate_crash/src/main.rs
fn main() {
println!("main.");
foo(); // remove this line for compiler output A
}
#[deprecated(note=test)]
fn foo(){
println!("Hello, world");
}Compiler Output A
This happens when you run above code without calling foo();.
$ cargo run
Compiling deprecate_crash v0.1.0 (C:\Users\eric\Documents\projects\cevi-versand\deprecate_crash)
error: expected unsuffixed literal or identifier, found `test`
--> src\main.rs:5:19
|
5 | #[deprecated(note=test)]
| ^^^^
error: aborting due to previous error
error: Could not compile `deprecate_crash`.
To learn more, run the command again with --verbose.
Compiler Output B
This happens when you run above code verbatim.
$ cargo run
Compiling deprecate_crash v0.1.0 (C:\Users\eric\Documents\projects\cevi-versand\deprecate_crash)
error: expected unsuffixed literal or identifier, found `test`
--> src\main.rs:6:19
|
6 | #[deprecated(note=test)]
| ^^^^
thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', src\libcore\option.rs:347:21
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace.
error: aborting due to previous error
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 1.37.0 (eae3437df 2019-08-13) 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 `deprecate_crash`.
To learn more, run the command again with --verbose.
Expected Behaviour
I would expect Compiler Output A in both cases.
Backtrace
$ cargo run
Compiling deprecate_crash v0.1.0 (C:\Users\eric\Documents\projects\cevi-versand\deprecate_crash)
error: expected unsuffixed literal or identifier, found `test`
--> src\main.rs:6:19
|
6 | #[deprecated(note=test)]
| ^^^^
thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', src\libcore\option.rs:347:21
stack backtrace:
0: std::sys_common::alloc::realloc_fallback
1: std::panicking::take_hook
2: std::panicking::take_hook
3: <(rustc::hir::def_id::DefId, rustc::hir::def_id::DefId) as rustc::ty::query::keys::Key>::default_span
4: std::panicking::rust_panic_with_hook
5: std::panicking::begin_panic_fmt
6: rust_begin_unwind
7: core::panicking::panic_fmt
8: core::panicking::panic
9: syntax::attr::builtin::find_deprecation
10: <rustc::middle::stability::Annotator as rustc::hir::intravisit::Visitor>::visit_item
11: rustc::middle::stability::Index::new
12: rustc::ty::structural_impls::<impl rustc::ty::context::Lift for syntax_pos::span_encoding::Span>::lift_to_tcx
13: rustc::middle::weak_lang_items::<impl rustc::ty::context::TyCtxt>::is_weak_lang_item
14: rustc::dep_graph::graph::DepGraph::assert_ignored
15: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::try_print_query_stack
16: rustc::ty::structural_impls::<impl rustc::ty::context::Lift for syntax_pos::span_encoding::Span>::lift_to_tcx
17: rustc::ty::print::pretty::<impl core::fmt::Display for rustc::ty::subst::Kind>::fmt
18: rustc::middle::weak_lang_items::<impl rustc::ty::context::TyCtxt>::is_weak_lang_item
19: rustc::dep_graph::graph::DepGraph::assert_ignored
20: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::try_print_query_stack
21: rustc::middle::stability::<impl rustc::ty::context::TyCtxt>::eval_stability
22: rustc::middle::stability::<impl rustc::ty::context::TyCtxt>::check_stability
23: rustc::hir::intravisit::NestedVisitorMap::inter
24: rustc::hir::intravisit::NestedVisitorMap::inter
25: rustc::hir::intravisit::NestedVisitorMap::inter
26: rustc::hir::intravisit::NestedVisitorMap::inter
27: rustc::dep_graph::cgu_reuse_tracker::CguReuseTracker::check_expected_reuse
28: rustc::hir::intravisit::NestedVisitorMap::inter
29: <rustc::middle::stability::Checker as rustc::hir::intravisit::Visitor>::visit_item
30: rustc::hir::map::Map::get_module
31: rustc::middle::stability::Index::local_deprecation_entry
32: <rustc_interface::util::ReplaceBodyWithLoop as syntax::mut_visit::MutVisitor>::visit_mac
33: <rustc_interface::proc_macro_decls::Finder as rustc::hir::itemlikevisit::ItemLikeVisitor>::visit_item
34: <rustc_interface::proc_macro_decls::Finder as rustc::hir::itemlikevisit::ItemLikeVisitor>::visit_item
35: <rustc_interface::proc_macro_decls::Finder as rustc::hir::itemlikevisit::ItemLikeVisitor>::visit_item
36: <rustc_interface::proc_macro_decls::Finder as rustc::hir::itemlikevisit::ItemLikeVisitor>::visit_trait_item
37: _rust_maybe_catch_panic
38: <rustc_interface::profile::trace::Query as core::fmt::Debug>::fmt
39: <rustc_interface::profile::trace::Query as core::fmt::Debug>::fmt
40: rustc_interface::passes::BoxedResolver::to_expansion_result
41: rustc_driver::set_sigpipe_handler
42: rustc_driver::set_sigpipe_handler
43: <rustc_driver::pretty::UserIdentifiedItem as core::fmt::Debug>::fmt
44: rustc_driver::set_sigpipe_handler
45: rustc_driver::set_sigpipe_handler
46: rustc_driver::set_sigpipe_handler
47: <rustc_interface::util::ReplaceBodyWithLoop as syntax::mut_visit::MutVisitor>::visit_mac
48: rustc_driver::set_sigpipe_handler
49: <env_logger::filter::inner::Filter as core::fmt::Display>::fmt
50: <env_logger::filter::inner::Filter as core::fmt::Display>::fmt
51: <rustc_driver::Compilation as core::fmt::Debug>::fmt
52: <rustc_driver::pretty::UserIdentifiedItem as core::fmt::Debug>::fmt
53: _rust_maybe_catch_panic
54: rustc_driver::set_sigpipe_handler
55: ZN244_$LT$std..error..$LT$impl$u20$core..convert..From$LT$alloc..string..String$GT$$u20$for$u20$alloc..boxed..Box$LT$dyn$u20$std..error..Error$u2b$core..marker..Send$u2b$core..marker..Sync$GT$$GT$..from..StringError$u20$as$u20$core..fmt..Display$GT$3fmt17
56: std::sys::windows::thread::Thread::new
57: BaseThreadInitThunk
58: RtlUserThreadStart
query stack during panic:
#0 [stability_index] calculating the stability index for the local crate
#1 [lookup_deprecation_entry] processing `foo`
#2 [check_mod_unstable_api_usage] checking for unstable API usage in top-level module
#3 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to previous error
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 1.37.0 (eae3437df 2019-08-13) 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 `deprecate_crash`.
To learn more, run the command again with --verbose.
Environment
Win10, cygwin
$ cargo --version
cargo 1.37.0 (9edd08916 2019-08-02)
$ rustc --version --verbose
rustc 1.37.0 (eae3437df 2019-08-13)
binary: rustc
commit-hash: eae3437dfe991621e8afdc82734f4a172d7ddf9b
commit-date: 2019-08-13
host: x86_64-pc-windows-msvc
release: 1.37.0
LLVM version: 8.0
Why Would You Even Do This?
I had no internet connection at the time and was trying to achieve #[deprecated(note="test")]
I don't find that crash annoying, but since the message asked me to report it, here I am. Enjoy :)