Closed
Description
snippet:
async fn asyncfn() {
let binding = match true {};
}
Version information
rustc 1.75.0-nightly (61a3eea80 2023-11-07)
binary: rustc
commit-hash: 61a3eea8043cc1c7a09c2adda884e27ffa8a1172
commit-date: 2023-11-07
host: x86_64-unknown-linux-gnu
release: 1.75.0-nightly
LLVM version: 17.0.4
Command:
/home/matthias/.rustup/toolchains/master/bin/rustc
Program output
error[E0670]: `async fn` is not permitted in Rust 2015
--> /tmp/icemaker_global_tempdir.7o3Q1gw7UiZR/rustc_testrunner_tmpdir_reporting.9ubqj5lFq7ji/mvce.rs:1:1
|
1 | async fn asyncfn() {
| ^^^^^ to use `async fn`, switch to Rust 2018 or later
|
= help: pass `--edition 2021` to `rustc`
= note: for more on editions, read https://doc.rust-lang.org/edition-guide
error[E0601]: `main` function not found in crate `mvce`
--> /tmp/icemaker_global_tempdir.7o3Q1gw7UiZR/rustc_testrunner_tmpdir_reporting.9ubqj5lFq7ji/mvce.rs:3:2
|
3 | }
| ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.7o3Q1gw7UiZR/rustc_testrunner_tmpdir_reporting.9ubqj5lFq7ji/mvce.rs`
error[E0004]: non-exhaustive patterns: type `bool` is non-empty
--> /tmp/icemaker_global_tempdir.7o3Q1gw7UiZR/rustc_testrunner_tmpdir_reporting.9ubqj5lFq7ji/mvce.rs:2:25
|
2 | let binding = match true {};
| ^^^^
|
= note: the matched value is of type `bool`
help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
|
2 ~ let binding = match true {
3 + _ => todo!(),
4 ~ };
|
error: internal compiler error: compiler/rustc_mir_transform/src/coroutine.rs:1456:14: unexpected coroutine type Pin<&mut {async fn body@/tmp/icemaker_global_tempdir.7o3Q1gw7UiZR/rustc_testrunner_tmpdir_reporting.9ubqj5lFq7ji/mvce.rs:1:20: 3:2}>
--> /tmp/icemaker_global_tempdir.7o3Q1gw7UiZR/rustc_testrunner_tmpdir_reporting.9ubqj5lFq7ji/mvce.rs:1:20
|
1 | async fn asyncfn() {
| ____________________^
2 | | let binding = match true {};
3 | | }
| |_^
thread 'rustc' panicked at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/compiler/rustc_errors/src/lib.rs:1000:33:
Box<dyn Any>
stack backtrace:
0: 0x7f9895169cfc - std::backtrace_rs::backtrace::libunwind::trace::ha8f6e52a8cecff6b
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
1: 0x7f9895169cfc - std::backtrace_rs::backtrace::trace_unsynchronized::hc3d43a7a80e1a3c8
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7f9895169cfc - std::sys_common::backtrace::_print_fmt::hc7440be187a95d41
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/std/src/sys_common/backtrace.rs:67:5
3: 0x7f9895169cfc - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h96cf8ee4b5f2e036
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7f98951cbf20 - core::fmt::rt::Argument::fmt::hdfd5a66e0fbbda61
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/core/src/fmt/rt.rs:142:9
5: 0x7f98951cbf20 - core::fmt::write::hbf8504e4604fab75
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/core/src/fmt/mod.rs:1117:17
6: 0x7f989515dc1f - std::io::Write::write_fmt::h8c1794a4e8f00a67
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/std/src/io/mod.rs:1763:15
7: 0x7f9895169ae4 - std::sys_common::backtrace::_print::h8fc37d1a8fd62fb9
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7f9895169ae4 - std::sys_common::backtrace::print::h6ea2abbcb6744317
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7f989516c777 - std::panicking::default_hook::{{closure}}::h264888a1ebdc1f1f
10: 0x7f989516c4df - std::panicking::default_hook::h7cd70883366c02e2
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/std/src/panicking.rs:292:9
11: 0x7f9897eabd60 - std[a7c0a148e67fdc04]::panicking::update_hook::<alloc[4f836f92b421e5d]::boxed::Box<rustc_driver_impl[8f58a3fefd4a7177]::install_ice_hook::{closure#0}>>::{closure#0}
12: 0x7f989516ceb8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hae96e9a73f1815a9
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/alloc/src/boxed.rs:2021:9
13: 0x7f989516ceb8 - std::panicking::rust_panic_with_hook::h3b7bf215b6d504aa
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/std/src/panicking.rs:783:13
14: 0x7f98984798d4 - std[a7c0a148e67fdc04]::panicking::begin_panic::<rustc_errors[ff5223dc5e19fc25]::ExplicitBug>::{closure#0}
15: 0x7f989846f576 - std[a7c0a148e67fdc04]::sys_common::backtrace::__rust_end_short_backtrace::<std[a7c0a148e67fdc04]::panicking::begin_panic<rustc_errors[ff5223dc5e19fc25]::ExplicitBug>::{closure#0}, !>
16: 0x7f989845e6e6 - std[a7c0a148e67fdc04]::panicking::begin_panic::<rustc_errors[ff5223dc5e19fc25]::ExplicitBug>
17: 0x7f989845086e - <rustc_errors[ff5223dc5e19fc25]::HandlerInner>::span_bug::<rustc_span[4568d02bda951cb5]::span_encoding::Span, alloc[4f836f92b421e5d]::string::String>
18: 0x7f9898445478 - <rustc_errors[ff5223dc5e19fc25]::Handler>::span_bug::<rustc_span[4568d02bda951cb5]::span_encoding::Span, alloc[4f836f92b421e5d]::string::String>
19: 0x7f9898479a1b - rustc_middle[5cc2d7af9b9bf8d9]::util::bug::opt_span_bug_fmt::<rustc_span[4568d02bda951cb5]::span_encoding::Span>::{closure#0}
20: 0x7f9898479a4a - rustc_middle[5cc2d7af9b9bf8d9]::ty::context::tls::with_opt::<rustc_middle[5cc2d7af9b9bf8d9]::util::bug::opt_span_bug_fmt<rustc_span[4568d02bda951cb5]::span_encoding::Span>::{closure#0}, !>::{closure#0}
21: 0x7f989846f5b8 - rustc_middle[5cc2d7af9b9bf8d9]::ty::context::tls::with_context_opt::<rustc_middle[5cc2d7af9b9bf8d9]::ty::context::tls::with_opt<rustc_middle[5cc2d7af9b9bf8d9]::util::bug::opt_span_bug_fmt<rustc_span[4568d02bda951cb5]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
22: 0x7f9896f0e7e4 - rustc_middle[5cc2d7af9b9bf8d9]::util::bug::span_bug_fmt::<rustc_span[4568d02bda951cb5]::span_encoding::Span>
23: 0x7f9898508de2 - rustc_mir_transform[2f4f7bcc12e314b4]::coroutine::mir_coroutine_witnesses
24: 0x7f9898689e4c - rustc_query_impl[640096e6498a15f6]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[640096e6498a15f6]::query_impl::mir_coroutine_witnesses::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5cc2d7af9b9bf8d9]::query::erase::Erased<[u8; 8usize]>>
25: 0x7f98990830d8 - rustc_query_system[d79ebc7ab414f88c]::query::plumbing::try_execute_query::<rustc_query_impl[640096e6498a15f6]::DynamicConfig<rustc_query_system[d79ebc7ab414f88c]::query::caches::DefaultCache<rustc_span[4568d02bda951cb5]::def_id::DefId, rustc_middle[5cc2d7af9b9bf8d9]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[640096e6498a15f6]::plumbing::QueryCtxt, false>
26: 0x7f989868ffd8 - rustc_query_impl[640096e6498a15f6]::query_impl::mir_coroutine_witnesses::get_query_non_incr::__rust_end_short_backtrace
27: 0x7f989919c905 - rustc_middle[5cc2d7af9b9bf8d9]::query::plumbing::query_get_at::<rustc_query_system[d79ebc7ab414f88c]::query::caches::DefaultCache<rustc_span[4568d02bda951cb5]::def_id::DefId, rustc_middle[5cc2d7af9b9bf8d9]::query::erase::Erased<[u8; 8usize]>>>
28: 0x7f989a59fa3d - <rustc_middle[5cc2d7af9b9bf8d9]::ty::util::OpaqueTypeExpander as rustc_type_ir[80d8ecad5527dc5b]::fold::TypeFolder<rustc_middle[5cc2d7af9b9bf8d9]::ty::context::TyCtxt>>::fold_ty.cold.0
29: 0x7f9899aa5dde - <&rustc_middle[5cc2d7af9b9bf8d9]::ty::list::List<rustc_middle[5cc2d7af9b9bf8d9]::ty::generic_args::GenericArg> as rustc_type_ir[80d8ecad5527dc5b]::fold::TypeFoldable<rustc_middle[5cc2d7af9b9bf8d9]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[5cc2d7af9b9bf8d9]::ty::util::OpaqueTypeExpander>
30: 0x7f989a59fc33 - <rustc_middle[5cc2d7af9b9bf8d9]::ty::util::OpaqueTypeExpander as rustc_type_ir[80d8ecad5527dc5b]::fold::TypeFolder<rustc_middle[5cc2d7af9b9bf8d9]::ty::context::TyCtxt>>::fold_ty.cold.0
31: 0x7f9899aa659f - <rustc_middle[5cc2d7af9b9bf8d9]::ty::util::OpaqueTypeExpander>::expand_opaque_ty
32: 0x7f9899aa62d8 - <rustc_middle[5cc2d7af9b9bf8d9]::ty::context::TyCtxt>::try_expand_impl_trait_type
33: 0x7f98995884d6 - rustc_hir_analysis[ce52d48230ee7ff2]::check::check::check_mod_item_types
34: 0x7f9899586eb9 - rustc_query_impl[640096e6498a15f6]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[640096e6498a15f6]::query_impl::check_mod_item_types::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5cc2d7af9b9bf8d9]::query::erase::Erased<[u8; 0usize]>>
35: 0x7f98999e3a3b - rustc_query_system[d79ebc7ab414f88c]::query::plumbing::try_execute_query::<rustc_query_impl[640096e6498a15f6]::DynamicConfig<rustc_query_system[d79ebc7ab414f88c]::query::caches::DefaultCache<rustc_span[4568d02bda951cb5]::def_id::LocalModDefId, rustc_middle[5cc2d7af9b9bf8d9]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[640096e6498a15f6]::plumbing::QueryCtxt, false>
36: 0x7f98999e3417 - rustc_query_impl[640096e6498a15f6]::query_impl::check_mod_item_types::get_query_non_incr::__rust_end_short_backtrace
37: 0x7f989961b059 - rustc_hir_analysis[ce52d48230ee7ff2]::check_crate
38: 0x7f98992a31d5 - rustc_interface[9052e2cdd752e6f7]::passes::analysis
39: 0x7f98992a2e1d - rustc_query_impl[640096e6498a15f6]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[640096e6498a15f6]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5cc2d7af9b9bf8d9]::query::erase::Erased<[u8; 1usize]>>
40: 0x7f9899ca7800 - rustc_query_system[d79ebc7ab414f88c]::query::plumbing::try_execute_query::<rustc_query_impl[640096e6498a15f6]::DynamicConfig<rustc_query_system[d79ebc7ab414f88c]::query::caches::SingleCache<rustc_middle[5cc2d7af9b9bf8d9]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[640096e6498a15f6]::plumbing::QueryCtxt, false>
41: 0x7f9899ca7607 - rustc_query_impl[640096e6498a15f6]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
42: 0x7f9899fc0f33 - rustc_interface[9052e2cdd752e6f7]::interface::run_compiler::<core[9831b5d2acfe63fe]::result::Result<(), rustc_span[4568d02bda951cb5]::ErrorGuaranteed>, rustc_driver_impl[8f58a3fefd4a7177]::run_compiler::{closure#1}>::{closure#0}
43: 0x7f9899fee8ca - std[a7c0a148e67fdc04]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[9052e2cdd752e6f7]::util::run_in_thread_with_globals<rustc_interface[9052e2cdd752e6f7]::util::run_in_thread_pool_with_globals<rustc_interface[9052e2cdd752e6f7]::interface::run_compiler<core[9831b5d2acfe63fe]::result::Result<(), rustc_span[4568d02bda951cb5]::ErrorGuaranteed>, rustc_driver_impl[8f58a3fefd4a7177]::run_compiler::{closure#1}>::{closure#0}, core[9831b5d2acfe63fe]::result::Result<(), rustc_span[4568d02bda951cb5]::ErrorGuaranteed>>::{closure#0}, core[9831b5d2acfe63fe]::result::Result<(), rustc_span[4568d02bda951cb5]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[9831b5d2acfe63fe]::result::Result<(), rustc_span[4568d02bda951cb5]::ErrorGuaranteed>>
44: 0x7f9899fee6f3 - <<std[a7c0a148e67fdc04]::thread::Builder>::spawn_unchecked_<rustc_interface[9052e2cdd752e6f7]::util::run_in_thread_with_globals<rustc_interface[9052e2cdd752e6f7]::util::run_in_thread_pool_with_globals<rustc_interface[9052e2cdd752e6f7]::interface::run_compiler<core[9831b5d2acfe63fe]::result::Result<(), rustc_span[4568d02bda951cb5]::ErrorGuaranteed>, rustc_driver_impl[8f58a3fefd4a7177]::run_compiler::{closure#1}>::{closure#0}, core[9831b5d2acfe63fe]::result::Result<(), rustc_span[4568d02bda951cb5]::ErrorGuaranteed>>::{closure#0}, core[9831b5d2acfe63fe]::result::Result<(), rustc_span[4568d02bda951cb5]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[9831b5d2acfe63fe]::result::Result<(), rustc_span[4568d02bda951cb5]::ErrorGuaranteed>>::{closure#1} as core[9831b5d2acfe63fe]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
45: 0x7f9895177c25 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbd3ecd0399f32c83
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/alloc/src/boxed.rs:2007:9
46: 0x7f9895177c25 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::heae77eec81d79ab4
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/alloc/src/boxed.rs:2007:9
47: 0x7f9895177c25 - std::sys::unix::thread::Thread::new::thread_start::h6bd8f7ef76843338
at /rustc/61a3eea8043cc1c7a09c2adda884e27ffa8a1172/library/std/src/sys/unix/thread.rs:108:17
48: 0x7f9894f0c9eb - <unknown>
49: 0x7f9894f907cc - <unknown>
50: 0x0 - <unknown>
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 1.75.0-nightly (61a3eea80 2023-11-07) running on x86_64-unknown-linux-gnu
query stack during panic:
#0 [mir_coroutine_witnesses] coroutine witness types for `asyncfn::{closure#0}`
#1 [check_mod_item_types] checking item types in top-level module
#2 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 4 previous errors
Some errors have detailed explanations: E0004, E0601, E0670.
For more information about an error, try `rustc --explain E0004`.