Open
Description
Error happened when I added the test_case attribute from the test-case crate without adding the required use.
Error does not occur if I replace test_case with a different non-existing attribute.
Seems to have something to do with the std::prelude::v1::test_case macro.
Code
main.rs -
#[cfg(test)]
mod tests {
#[test_case]
#[tokio::test]
fn foo() {}
}Cargo.toml -
[dev-dependencies]
tokio = { version = "*", features = ["macros"] }Meta
rustc --version --verbose:
rustc 1.62.1 (e092d0b6b 2022-07-16)
binary: rustc
commit-hash: e092d0b6b43f2de967af0887873151bb1c0b18d3
commit-date: 2022-07-16
host: x86_64-unknown-linux-gnu
release: 1.62.1
LLVM version: 14.0.5
Same error occurs on the latest nightly.
Error output
error[E0658]: use of unstable library feature 'custom_test_frameworks': custom test frameworks are an unstable feature
--> src/main.rs:3:7
|
3 | #[test_case]
| ^^^^^^^^^
|
= note: see issue #50297 <https://github.com/rust-lang/rust/issues/50297> for more information
thread 'rustc' panicked at 'attribute is missing tokens: Attribute { kind: Normal(AttrItem { path: Path { span: src/main.rs:3:5: 3:17 (#4), segments: [PathSegment { ident: rustc_test_marker#4, id: NodeId(4294967040), args: None }], tokens: None }, args: Empty, tokens: None }, None), id: AttrId(38), style: Outer, span: src/main.rs:3:5: 3:17 (#4) }', compiler/rustc_ast/src/attr/mod.rs:305:36
stack backtrace:
0: 0x7f11250aefbd - std::backtrace_rs::backtrace::libunwind::trace::h8e036432725b1c57
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
1: 0x7f11250aefbd - std::backtrace_rs::backtrace::trace_unsynchronized::h4f83092254c85869
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7f11250aefbd - std::sys_common::backtrace::_print_fmt::h9728b5e056a3ece3
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/sys_common/backtrace.rs:66:5
3: 0x7f11250aefbd - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h48bb4bd2928827d2
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/sys_common/backtrace.rs:45:22
4: 0x7f112510ac4c - core::fmt::write::h909e69a2c24f44cc
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/fmt/mod.rs:1196:17
5: 0x7f11250a0731 - std::io::Write::write_fmt::h7f4b8ab8af89e9ef
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/io/mod.rs:1654:15
6: 0x7f11250b1cd5 - std::sys_common::backtrace::_print::hff4838ebf14a2171
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/sys_common/backtrace.rs:48:5
7: 0x7f11250b1cd5 - std::sys_common::backtrace::print::h2499280374189ad9
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/sys_common/backtrace.rs:35:9
8: 0x7f11250b1cd5 - std::panicking::default_hook::{{closure}}::h8b270fc55eeb284e
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panicking.rs:295:22
9: 0x7f11250b1949 - std::panicking::default_hook::h3217e229d6e9d13c
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panicking.rs:314:9
10: 0x7f1125876571 - rustc_driver[b4654d3c4d4292dd]::DEFAULT_HOOK::{closure#0}::{closure#0}
11: 0x7f11250b24a6 - std::panicking::rust_panic_with_hook::h9acb8048b738d2e0
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panicking.rs:702:17
12: 0x7f11250b22a7 - std::panicking::begin_panic_handler::{{closure}}::h70f3b839526af6dc
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panicking.rs:588:13
13: 0x7f11250af474 - std::sys_common::backtrace::__rust_end_short_backtrace::h1ecf2cee857fbe0a
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/sys_common/backtrace.rs:138:18
14: 0x7f11250b1fd9 - rust_begin_unwind
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panicking.rs:584:5
15: 0x7f1125077253 - core::panicking::panic_fmt::h9f8393e7fd56d655
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/panicking.rs:142:14
16: 0x7f11281c1d29 - <&mut <rustc_ast[c9de826133865101]::tokenstream::AttrAnnotatedTokenStream>::to_tokenstream::{closure#0} as core[dbea6f494faa966e]::ops::function::FnOnce<(&(rustc_ast[c9de826133865101]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[c9de826133865101]::tokenstream::Spacing),)>>::call_once
17: 0x7f11278b3c5e - <alloc[9c8de9aaaf44fea]::vec::Vec<(rustc_ast[c9de826133865101]::tokenstream::TokenTree, rustc_ast[c9de826133865101]::tokenstream::Spacing)> as alloc[9c8de9aaaf44fea]::vec::spec_from_iter::SpecFromIter<(rustc_ast[c9de826133865101]::tokenstream::TokenTree, rustc_ast[c9de826133865101]::tokenstream::Spacing), core[dbea6f494faa966e]::iter::adapters::flatten::FlatMap<core[dbea6f494faa966e]::slice::iter::Iter<(rustc_ast[c9de826133865101]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[c9de826133865101]::tokenstream::Spacing)>, smallvec[5b0714cf081bc802]::IntoIter<[(rustc_ast[c9de826133865101]::tokenstream::TokenTree, rustc_ast[c9de826133865101]::tokenstream::Spacing); 1usize]>, <rustc_ast[c9de826133865101]::tokenstream::AttrAnnotatedTokenStream>::to_tokenstream::{closure#0}>>>::from_iter
18: 0x7f11281c2053 - <rustc_ast[c9de826133865101]::tokenstream::AttrAnnotatedTokenStream>::to_tokenstream
19: 0x7f112801d42f - rustc_parse[a5896d463c55fe93]::prepend_attrs
20: 0x7f1127fbea34 - rustc_parse[a5896d463c55fe93]::to_token_stream::<rustc_ast[c9de826133865101]::ptr::P<rustc_ast[c9de826133865101]::ast::Item>>
21: 0x7f11274b2910 - <rustc_expand[4b90c4bd066cda8b]::expand::MacroExpander>::fully_expand_fragment
22: 0x7f1127fae17e - <rustc_expand[4b90c4bd066cda8b]::expand::MacroExpander>::expand_crate
23: 0x7f11279165e4 - <rustc_session[a2f3190f51a45935]::session::Session>::time::<core[dbea6f494faa966e]::result::Result<rustc_ast[c9de826133865101]::ast::Crate, rustc_errors[4633ef6e4608f9c1]::ErrorGuaranteed>, rustc_interface[9f664daa3237129]::passes::configure_and_expand::{closure#1}>
24: 0x7f112790f893 - rustc_interface[9f664daa3237129]::passes::configure_and_expand
25: 0x7f1127936a17 - <rustc_interface[9f664daa3237129]::queries::Queries>::expansion
26: 0x7f11278df629 - <rustc_interface[9f664daa3237129]::interface::Compiler>::enter::<rustc_driver[b4654d3c4d4292dd]::run_compiler::{closure#1}::{closure#2}, core[dbea6f494faa966e]::result::Result<core[dbea6f494faa966e]::option::Option<rustc_interface[9f664daa3237129]::queries::Linker>, rustc_errors[4633ef6e4608f9c1]::ErrorGuaranteed>>
27: 0x7f112790809f - rustc_span[1d0b4d44d1f53955]::with_source_map::<core[dbea6f494faa966e]::result::Result<(), rustc_errors[4633ef6e4608f9c1]::ErrorGuaranteed>, rustc_interface[9f664daa3237129]::interface::create_compiler_and_run<core[dbea6f494faa966e]::result::Result<(), rustc_errors[4633ef6e4608f9c1]::ErrorGuaranteed>, rustc_driver[b4654d3c4d4292dd]::run_compiler::{closure#1}>::{closure#1}>
28: 0x7f11278e0374 - rustc_interface[9f664daa3237129]::interface::create_compiler_and_run::<core[dbea6f494faa966e]::result::Result<(), rustc_errors[4633ef6e4608f9c1]::ErrorGuaranteed>, rustc_driver[b4654d3c4d4292dd]::run_compiler::{closure#1}>
29: 0x7f11278ddc12 - <scoped_tls[ab1554bfb6e7ab15]::ScopedKey<rustc_span[1d0b4d44d1f53955]::SessionGlobals>>::set::<rustc_interface[9f664daa3237129]::interface::run_compiler<core[dbea6f494faa966e]::result::Result<(), rustc_errors[4633ef6e4608f9c1]::ErrorGuaranteed>, rustc_driver[b4654d3c4d4292dd]::run_compiler::{closure#1}>::{closure#0}, core[dbea6f494faa966e]::result::Result<(), rustc_errors[4633ef6e4608f9c1]::ErrorGuaranteed>>
30: 0x7f11278f4dff - std[8996aeeb2a45fe64]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[9f664daa3237129]::util::run_in_thread_pool_with_globals<rustc_interface[9f664daa3237129]::interface::run_compiler<core[dbea6f494faa966e]::result::Result<(), rustc_errors[4633ef6e4608f9c1]::ErrorGuaranteed>, rustc_driver[b4654d3c4d4292dd]::run_compiler::{closure#1}>::{closure#0}, core[dbea6f494faa966e]::result::Result<(), rustc_errors[4633ef6e4608f9c1]::ErrorGuaranteed>>::{closure#0}, core[dbea6f494faa966e]::result::Result<(), rustc_errors[4633ef6e4608f9c1]::ErrorGuaranteed>>
31: 0x7f11278f4f39 - <<std[8996aeeb2a45fe64]::thread::Builder>::spawn_unchecked_<rustc_interface[9f664daa3237129]::util::run_in_thread_pool_with_globals<rustc_interface[9f664daa3237129]::interface::run_compiler<core[dbea6f494faa966e]::result::Result<(), rustc_errors[4633ef6e4608f9c1]::ErrorGuaranteed>, rustc_driver[b4654d3c4d4292dd]::run_compiler::{closure#1}>::{closure#0}, core[dbea6f494faa966e]::result::Result<(), rustc_errors[4633ef6e4608f9c1]::ErrorGuaranteed>>::{closure#0}, core[dbea6f494faa966e]::result::Result<(), rustc_errors[4633ef6e4608f9c1]::ErrorGuaranteed>>::{closure#1} as core[dbea6f494faa966e]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
32: 0x7f11250bc3c3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h191d5c5ea3edb31d
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/alloc/src/boxed.rs:1872:9
33: 0x7f11250bc3c3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h42ef7cb2ae640a31
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/alloc/src/boxed.rs:1872:9
34: 0x7f11250bc3c3 - std::sys::unix::thread::Thread::new::thread_start::he47f7169665dab60
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/sys/unix/thread.rs:108:17
35: 0x7f1124fdb609 - start_thread
at /build/glibc-SzIz7B/glibc-2.31/nptl/pthread_create.c:477:8
36: 0x7f1124ef4133 - clone
at /build/glibc-SzIz7B/glibc-2.31/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95
37: 0x0 - <unknown>
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/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
note: rustc 1.62.1 (e092d0b6b 2022-07-16) running on x86_64-unknown-linux-gnu
note: compiler flags: -C embed-bitcode=no -C debuginfo=2 -C incremental
note: some of the compiler flags provided by cargo are hidden
query stack during panic:
end of query stack
For more information about this error, try `rustc --explain E0658`.
error: could not compile `ice` due to previous error
Backtrace
thread 'rustc' panicked at 'attribute is missing tokens: Attribute { kind: Normal(AttrItem { path: Path { span: src/main.rs:3:5: 3:17 (#4), segments: [PathSegment { ident: rustc_test_marker#4, id: NodeId(4294967040), args: None }], tokens: None }, args: Empty, tokens: None }, None), id: AttrId(38), style: Outer, span: src/main.rs:3:5: 3:17 (#4) }', compiler/rustc_ast/src/attr/mod.rs:305:36
stack backtrace:
0: rust_begin_unwind
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/std/src/panicking.rs:584:5
1: core::panicking::panic_fmt
at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library/core/src/panicking.rs:142:14
2: <&mut <rustc_ast::tokenstream::AttrAnnotatedTokenStream>::to_tokenstream::{closure#0} as core::ops::function::FnOnce<(&(rustc_ast::tokenstream::AttrAnnotatedTokenTree, rustc_ast::tokenstream::Spacing),)>>::call_once
3: <alloc::vec::Vec<(rustc_ast::tokenstream::TokenTree, rustc_ast::tokenstream::Spacing)> as alloc::vec::spec_from_iter::SpecFromIter<(rustc_ast::tokenstream::TokenTree, rustc_ast::tokenstream::Spacing), core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<(rustc_ast::tokenstream::AttrAnnotatedTokenTree, rustc_ast::tokenstream::Spacing)>, smallvec::IntoIter<[(rustc_ast::tokenstream::TokenTree, rustc_ast::tokenstream::Spacing); 1]>, <rustc_ast::tokenstream::AttrAnnotatedTokenStream>::to_tokenstream::{closure#0}>>>::from_iter
4: <rustc_ast::tokenstream::AttrAnnotatedTokenStream>::to_tokenstream
5: rustc_parse::prepend_attrs
6: rustc_parse::to_token_stream::<rustc_ast::ptr::P<rustc_ast::ast::Item>>
7: <rustc_expand::expand::MacroExpander>::fully_expand_fragment
8: <rustc_expand::expand::MacroExpander>::expand_crate
9: <rustc_session::session::Session>::time::<core::result::Result<rustc_ast::ast::Crate, rustc_errors::ErrorGuaranteed>, rustc_interface::passes::configure_and_expand::{closure#1}>
10: rustc_interface::passes::configure_and_expand
11: <rustc_interface::queries::Queries>::expansion
12: <rustc_interface::interface::Compiler>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}, core::result::Result<core::option::Option<rustc_interface::queries::Linker>, rustc_errors::ErrorGuaranteed>>
13: rustc_span::with_source_map::<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_interface::interface::create_compiler_and_run<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver::run_compiler::{closure#1}>::{closure#1}>
14: rustc_interface::interface::create_compiler_and_run::<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver::run_compiler::{closure#1}>
15: <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
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/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
note: rustc 1.62.1 (e092d0b6b 2022-07-16) running on x86_64-unknown-linux-gnu
note: compiler flags: -C embed-bitcode=no -C debuginfo=2 -C incremental
note: some of the compiler flags provided by cargo are hidden
query stack during panic:
end of query stack
For more information about this error, try `rustc --explain E0658`.
error: could not compile `ice` due to previous error