Closed
Description
Code
fn bar() -> String {
#[cfg]
[1, 2, 3].iter()
#[feature]
attr::fn bar() -> String {
#[attr]
[1, 2, 3].iter().map().collect::<String>()
#[attr]
}()
}Meta
rustc --version --verbose:
rustc 1.76.0-nightly (0919ad183 2023-12-02)
binary: rustc
commit-hash: 0919ad18381f6f4fcaddc809e786553e028bbde0
commit-date: 2023-12-02
host: x86_64-unknown-linux-gnu
release: 1.76.0-nightly
LLVM version: 17.0.5
Error output
error: expected identifier, found keyword `fn`
--> treereduce_1E33.out:5:11
|
5 | attr::fn bar() -> String {
| ^^ expected identifier, found keyword
Backtrace
thread 'rustc' panicked at compiler/rustc_parse/src/parser/diagnostics.rs:791:52:
called `Option::unwrap()` on a `None` value
stack backtrace:
0: 0x7efc70f8b28c - std::backtrace_rs::backtrace::libunwind::trace::hf60fec8ebc0c5e46
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
1: 0x7efc70f8b28c - std::backtrace_rs::backtrace::trace_unsynchronized::h6b0117997e292206
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7efc70f8b28c - std::sys_common::backtrace::_print_fmt::h44b32f67603b518c
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/std/src/sys_common/backtrace.rs:68:5
3: 0x7efc70f8b28c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h27fb11da10f33041
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7efc70fde2c0 - core::fmt::rt::Argument::fmt::h3fc263cbfb58e262
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/core/src/fmt/rt.rs:142:9
5: 0x7efc70fde2c0 - core::fmt::write::h02278e02d2d5f049
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/core/src/fmt/mod.rs:1120:17
6: 0x7efc70f7f17f - std::io::Write::write_fmt::hffc80e01f3ab27bb
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/std/src/io/mod.rs:1810:15
7: 0x7efc70f8b074 - std::sys_common::backtrace::_print::h2544e68645d26127
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7efc70f8b074 - std::sys_common::backtrace::print::h2e0aa5ce667bab38
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7efc70f8dd07 - std::panicking::default_hook::{{closure}}::h0a15ec650eef3042
10: 0x7efc70f8da6f - std::panicking::default_hook::heb7c98638cae941f
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/std/src/panicking.rs:292:9
11: 0x7efc73cf1e80 - std[87e1f5a9db75d886]::panicking::update_hook::<alloc[3858379072058137]::boxed::Box<rustc_driver_impl[cfa48c30a51debc9]::install_ice_hook::{closure#0}>>::{closure#0}
12: 0x7efc70f8e448 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hdf7e5e901896fee8
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/alloc/src/boxed.rs:2021:9
13: 0x7efc70f8e448 - std::panicking::rust_panic_with_hook::h5b2da380fe2b9567
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/std/src/panicking.rs:783:13
14: 0x7efc70f8e169 - std::panicking::begin_panic_handler::{{closure}}::h3f96784bf0ca7405
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/std/src/panicking.rs:649:13
15: 0x7efc70f8b756 - std::sys_common::backtrace::__rust_end_short_backtrace::hf79e6243acc919d5
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/std/src/sys_common/backtrace.rs:171:18
16: 0x7efc70f8df02 - rust_begin_unwind
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/std/src/panicking.rs:645:5
17: 0x7efc70fda995 - core::panicking::panic_fmt::h30900c9a84f4042b
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/core/src/panicking.rs:72:14
18: 0x7efc70fdaa43 - core::panicking::panic::h234da1d28a5ceaa3
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/core/src/panicking.rs:142:5
19: 0x7efc72a15d47 - <rustc_parse[af32aa468c2a8517]::parser::Parser>::attr_on_non_tail_expr
20: 0x7efc757098b0 - <rustc_parse[af32aa468c2a8517]::parser::Parser>::parse_block_tail
21: 0x7efc753da5a2 - <rustc_parse[af32aa468c2a8517]::parser::Parser>::parse_fn
22: 0x7efc756f77ef - <rustc_parse[af32aa468c2a8517]::parser::Parser>::parse_item_kind
23: 0x7efc753f293f - <rustc_parse[af32aa468c2a8517]::parser::Parser>::parse_item_common
24: 0x7efc753effec - <rustc_parse[af32aa468c2a8517]::parser::Parser>::parse_mod
25: 0x7efc75f8b490 - rustc_interface[940fd56aa190939d]::passes::parse
26: 0x7efc75f8b20e - <rustc_interface[940fd56aa190939d]::queries::Queries>::parse
27: 0x7efc75f81f25 - rustc_interface[940fd56aa190939d]::interface::run_compiler::<core[75c7cbfbe7f98c9f]::result::Result<(), rustc_span[63578016ae5b5f6e]::ErrorGuaranteed>, rustc_driver_impl[cfa48c30a51debc9]::run_compiler::{closure#0}>::{closure#0}
28: 0x7efc75f75549 - std[87e1f5a9db75d886]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[940fd56aa190939d]::util::run_in_thread_with_globals<rustc_interface[940fd56aa190939d]::util::run_in_thread_pool_with_globals<rustc_interface[940fd56aa190939d]::interface::run_compiler<core[75c7cbfbe7f98c9f]::result::Result<(), rustc_span[63578016ae5b5f6e]::ErrorGuaranteed>, rustc_driver_impl[cfa48c30a51debc9]::run_compiler::{closure#0}>::{closure#0}, core[75c7cbfbe7f98c9f]::result::Result<(), rustc_span[63578016ae5b5f6e]::ErrorGuaranteed>>::{closure#0}, core[75c7cbfbe7f98c9f]::result::Result<(), rustc_span[63578016ae5b5f6e]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[75c7cbfbe7f98c9f]::result::Result<(), rustc_span[63578016ae5b5f6e]::ErrorGuaranteed>>
29: 0x7efc75f75373 - <<std[87e1f5a9db75d886]::thread::Builder>::spawn_unchecked_<rustc_interface[940fd56aa190939d]::util::run_in_thread_with_globals<rustc_interface[940fd56aa190939d]::util::run_in_thread_pool_with_globals<rustc_interface[940fd56aa190939d]::interface::run_compiler<core[75c7cbfbe7f98c9f]::result::Result<(), rustc_span[63578016ae5b5f6e]::ErrorGuaranteed>, rustc_driver_impl[cfa48c30a51debc9]::run_compiler::{closure#0}>::{closure#0}, core[75c7cbfbe7f98c9f]::result::Result<(), rustc_span[63578016ae5b5f6e]::ErrorGuaranteed>>::{closure#0}, core[75c7cbfbe7f98c9f]::result::Result<(), rustc_span[63578016ae5b5f6e]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[75c7cbfbe7f98c9f]::result::Result<(), rustc_span[63578016ae5b5f6e]::ErrorGuaranteed>>::{closure#1} as core[75c7cbfbe7f98c9f]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
30: 0x7efc70f982d5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7c5f0316c4d081e7
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/alloc/src/boxed.rs:2007:9
31: 0x7efc70f982d5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha58713453cbc0382
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/alloc/src/boxed.rs:2007:9
32: 0x7efc70f982d5 - std::sys::unix::thread::Thread::new::thread_start::h8f26f58dd762698d
at /rustc/0919ad18381f6f4fcaddc809e786553e028bbde0/library/std/src/sys/unix/thread.rs:108:17
33: 0x7efc70d889eb - <unknown>
34: 0x7efc70e0c7cc - <unknown>
35: 0x0 - <unknown>
error: 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: please attach the file at `/tmp/im/rustc-ice-2023-12-02T11_37_08-2631626.txt` to your bug report
query stack during panic:
end of query stack
error: aborting due to 1 previous error