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`Result::unwrap()` on an `Err` value: ReferencesError(ErrorGuaranteed(())) #128094

Open matthiaskrgr opened 1 month ago

matthiaskrgr commented 1 month ago

auto-reduced (treereduce-rust):

pub enum Request {
    TestSome(T),
}

pub async fn handle_event(event: Request) {
    async move {
        static instance: Request = Request { bar: 17 };
        &instance
    }
    .await;
}

original:

pub enum Request {
    TestSome(T),
}

pub async fn handle_event(
    event: Request,
)  {
    async move {
    static instance: Request = Request { bar: 17 };
    &instance
}.await;
}

pub fn main() {}

Version information

rustc 1.82.0-nightly (49649bf3c 2024-07-23)
binary: rustc
commit-hash: 49649bf3c5538531ade6834b9b308a6c8a5f3e8e
commit-date: 2024-07-23
host: x86_64-unknown-linux-gnu
release: 1.82.0-nightly
LLVM version: 18.1.7

Command: /home/matthias/.rustup/toolchains/master/bin/rustc -Zmir-opt-level=5 --edition=2018

Program output

``` error[E0412]: cannot find type `T` in this scope --> /tmp/icemaker_global_tempdir.7wIEjd0lKecw/rustc_testrunner_tmpdir_reporting.168IfbM3nYxW/mvce.rs:2:14 | 2 | TestSome(T), | ^ not found in this scope | help: you might be missing a type parameter | 1 | pub enum Request { | +++ error[E0574]: expected struct, variant or union type, found enum `Request` --> /tmp/icemaker_global_tempdir.7wIEjd0lKecw/rustc_testrunner_tmpdir_reporting.168IfbM3nYxW/mvce.rs:7:36 | 7 | static instance: Request = Request { bar: 17 }; | ^^^^^^^ not a struct, variant or union type | help: consider importing this struct instead | 1 + use std::error::Request; | error[E0601]: `main` function not found in crate `mvce` --> /tmp/icemaker_global_tempdir.7wIEjd0lKecw/rustc_testrunner_tmpdir_reporting.168IfbM3nYxW/mvce.rs:11:2 | 11 | } | ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.7wIEjd0lKecw/rustc_testrunner_tmpdir_reporting.168IfbM3nYxW/mvce.rs` warning: unused variable: `event` --> /tmp/icemaker_global_tempdir.7wIEjd0lKecw/rustc_testrunner_tmpdir_reporting.168IfbM3nYxW/mvce.rs:5:27 | 5 | pub async fn handle_event(event: Request) { | ^^^^^ help: if this is intentional, prefix it with an underscore: `_event` | = note: `#[warn(unused_variables)]` on by default thread 'rustc' panicked at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/compiler/rustc_const_eval/src/interpret/memory.rs:819:80: called `Result::unwrap()` on an `Err` value: ReferencesError(ErrorGuaranteed(())) stack backtrace: 0: 0x7aca857e8215 - std::backtrace_rs::backtrace::libunwind::trace::h2d3a238147fe4644 at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 1: 0x7aca857e8215 - std::backtrace_rs::backtrace::trace_unsynchronized::h62ccd1746707818d at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 2: 0x7aca857e8215 - std::sys::backtrace::_print_fmt::h198764e2cd3756f6 at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/std/src/sys/backtrace.rs:65:5 3: 0x7aca857e8215 - ::fmt::h8efb4db36089f8d1 at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/std/src/sys/backtrace.rs:40:26 4: 0x7aca85837c8b - core::fmt::rt::Argument::fmt::h32cf5a418db2846f at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/core/src/fmt/rt.rs:173:76 5: 0x7aca85837c8b - core::fmt::write::hd634bfe95aa2d191 at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/core/src/fmt/mod.rs:1182:21 6: 0x7aca857dccef - std::io::Write::write_fmt::h18d00a47d2edb63e at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/std/src/io/mod.rs:1827:15 7: 0x7aca857eaa01 - std::sys::backtrace::BacktraceLock::print::hdf53fb28966ef7ad at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/std/src/sys/backtrace.rs:43:9 8: 0x7aca857eaa01 - std::panicking::default_hook::{{closure}}::h6dc27f9ba326a601 at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/std/src/panicking.rs:269:22 9: 0x7aca857ea6dc - std::panicking::default_hook::h9dbf01c0a905b2fb at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/std/src/panicking.rs:296:9 10: 0x7aca81c1e709 - std[84685e2f5e49534c]::panicking::update_hook::>::{closure#0} 11: 0x7aca857eb3cf - as core::ops::function::Fn>::call::h2926931e5fae8e54 at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/alloc/src/boxed.rs:2163:9 12: 0x7aca857eb3cf - std::panicking::rust_panic_with_hook::ha943b79683377534 at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/std/src/panicking.rs:808:13 13: 0x7aca857eaff7 - std::panicking::begin_panic_handler::{{closure}}::hb948fc2cd41a6d5c at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/std/src/panicking.rs:674:13 14: 0x7aca857e86d9 - std::sys::backtrace::__rust_end_short_backtrace::h82feed5209c926ba at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/std/src/sys/backtrace.rs:168:18 15: 0x7aca857eac84 - rust_begin_unwind at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/std/src/panicking.rs:665:5 16: 0x7aca85834243 - core::panicking::panic_fmt::ha0806b6370825159 at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/core/src/panicking.rs:74:14 17: 0x7aca85834896 - core::result::unwrap_failed::h4fc72d8e11c69246 at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/core/src/result.rs:1679:5 18: 0x7aca84a6478f - >::get_alloc_info.cold 19: 0x7aca83cf0dfa - >::scalar_may_be_null 20: 0x7aca83cf08a4 - >::read_discriminant:: 21: 0x7aca83ce8cee - ::insert 22: 0x7aca83ce2524 - ::simplify_rvalue 23: 0x7aca80d2d468 - ::run_pass 24: 0x7aca83201c7b - rustc_mir_transform[48c5b07b6fa30cb7]::pass_manager::run_passes_inner 25: 0x7aca837d9256 - rustc_mir_transform[48c5b07b6fa30cb7]::optimized_mir 26: 0x7aca8409185d - rustc_query_impl[3f261a864a124585]::plumbing::__rust_begin_short_backtrace::> 27: 0x7aca8348a857 - rustc_query_system[85f7d4985ebc0774]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[3f261a864a124585]::plumbing::QueryCtxt, false> 28: 0x7aca8348a034 - rustc_query_impl[3f261a864a124585]::query_impl::optimized_mir::get_query_non_incr::__rust_end_short_backtrace 29: 0x7aca833b2457 - rustc_middle[f06a2f49cb923fa3]::query::plumbing::query_get_at::>> 30: 0x7aca82209fc0 - ::coroutine_layout 31: 0x7aca838254e2 - rustc_ty_utils[4b3be0d27c5e9905]::layout::layout_of_uncached 32: 0x7aca8381444b - rustc_ty_utils[4b3be0d27c5e9905]::layout::layout_of 33: 0x7aca838143d1 - rustc_query_impl[3f261a864a124585]::plumbing::__rust_begin_short_backtrace::> 34: 0x7aca838136d0 - rustc_query_system[85f7d4985ebc0774]::query::plumbing::try_execute_query::, rustc_middle[f06a2f49cb923fa3]::query::erase::Erased<[u8; 16usize]>>, false, true, false>, rustc_query_impl[3f261a864a124585]::plumbing::QueryCtxt, false> 35: 0x7aca8381336f - rustc_query_impl[3f261a864a124585]::query_impl::layout_of::get_query_non_incr::__rust_end_short_backtrace 36: 0x7aca83ce6a56 - rustc_middle[f06a2f49cb923fa3]::query::plumbing::query_get_at::, rustc_middle[f06a2f49cb923fa3]::query::erase::Erased<[u8; 16usize]>>> 37: 0x7aca83ce824e - ::insert 38: 0x7aca83ce2524 - ::simplify_rvalue 39: 0x7aca80d2d468 - ::run_pass 40: 0x7aca83201c7b - rustc_mir_transform[48c5b07b6fa30cb7]::pass_manager::run_passes_inner 41: 0x7aca837d9256 - rustc_mir_transform[48c5b07b6fa30cb7]::optimized_mir 42: 0x7aca8409185d - rustc_query_impl[3f261a864a124585]::plumbing::__rust_begin_short_backtrace::> 43: 0x7aca8348a857 - rustc_query_system[85f7d4985ebc0774]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[3f261a864a124585]::plumbing::QueryCtxt, false> 44: 0x7aca8348a034 - rustc_query_impl[3f261a864a124585]::query_impl::optimized_mir::get_query_non_incr::__rust_end_short_backtrace 45: 0x7aca833b2457 - rustc_middle[f06a2f49cb923fa3]::query::plumbing::query_get_at::>> 46: 0x7aca82209fc0 - ::coroutine_layout 47: 0x7aca838254e2 - rustc_ty_utils[4b3be0d27c5e9905]::layout::layout_of_uncached 48: 0x7aca8381444b - rustc_ty_utils[4b3be0d27c5e9905]::layout::layout_of 49: 0x7aca838143d1 - rustc_query_impl[3f261a864a124585]::plumbing::__rust_begin_short_backtrace::> 50: 0x7aca838136d0 - rustc_query_system[85f7d4985ebc0774]::query::plumbing::try_execute_query::, rustc_middle[f06a2f49cb923fa3]::query::erase::Erased<[u8; 16usize]>>, false, true, false>, rustc_query_impl[3f261a864a124585]::plumbing::QueryCtxt, false> 51: 0x7aca8381336f - rustc_query_impl[3f261a864a124585]::query_impl::layout_of::get_query_non_incr::__rust_end_short_backtrace 52: 0x7aca808e0b67 - ::run_lint 53: 0x7aca83201c7b - rustc_mir_transform[48c5b07b6fa30cb7]::pass_manager::run_passes_inner 54: 0x7aca83a13f29 - rustc_mir_transform[48c5b07b6fa30cb7]::mir_drops_elaborated_and_const_checked 55: 0x7aca83a137fd - rustc_query_impl[3f261a864a124585]::plumbing::__rust_begin_short_backtrace::> 56: 0x7aca834b0eb3 - rustc_query_system[85f7d4985ebc0774]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[3f261a864a124585]::plumbing::QueryCtxt, false> 57: 0x7aca834b0859 - rustc_query_impl[3f261a864a124585]::query_impl::mir_drops_elaborated_and_const_checked::get_query_non_incr::__rust_end_short_backtrace 58: 0x7aca83a20318 - rustc_interface[4a5f03b368ced297]::passes::analysis 59: 0x7aca83a1f21b - rustc_query_impl[3f261a864a124585]::plumbing::__rust_begin_short_backtrace::> 60: 0x7aca840d96a5 - rustc_query_system[85f7d4985ebc0774]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[3f261a864a124585]::plumbing::QueryCtxt, false> 61: 0x7aca840d940f - rustc_query_impl[3f261a864a124585]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace 62: 0x7aca83fce6c5 - rustc_interface[4a5f03b368ced297]::interface::run_compiler::, rustc_driver_impl[2ca809430a6bb1db]::run_compiler::{closure#0}>::{closure#1} 63: 0x7aca83fb51c9 - std[84685e2f5e49534c]::sys::backtrace::__rust_begin_short_backtrace::, rustc_driver_impl[2ca809430a6bb1db]::run_compiler::{closure#0}>::{closure#1}, core[c37d915429d9bf38]::result::Result<(), rustc_span[b5058cd9cdbacc64]::ErrorGuaranteed>>::{closure#0}, core[c37d915429d9bf38]::result::Result<(), rustc_span[b5058cd9cdbacc64]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[c37d915429d9bf38]::result::Result<(), rustc_span[b5058cd9cdbacc64]::ErrorGuaranteed>> 64: 0x7aca83fb4f7a - <::spawn_unchecked_, rustc_driver_impl[2ca809430a6bb1db]::run_compiler::{closure#0}>::{closure#1}, core[c37d915429d9bf38]::result::Result<(), rustc_span[b5058cd9cdbacc64]::ErrorGuaranteed>>::{closure#0}, core[c37d915429d9bf38]::result::Result<(), rustc_span[b5058cd9cdbacc64]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[c37d915429d9bf38]::result::Result<(), rustc_span[b5058cd9cdbacc64]::ErrorGuaranteed>>::{closure#1} as core[c37d915429d9bf38]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} 65: 0x7aca857f542b - as core::ops::function::FnOnce>::call_once::hb5e78d42d6801749 at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/alloc/src/boxed.rs:2149:9 66: 0x7aca857f542b - as core::ops::function::FnOnce>::call_once::hd9416e19f44d968d at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/alloc/src/boxed.rs:2149:9 67: 0x7aca857f542b - std::sys::pal::unix::thread::Thread::new::thread_start::he0388d99656ed7ca at /rustc/49649bf3c5538531ade6834b9b308a6c8a5f3e8e/library/std/src/sys/pal/unix/thread.rs:108:17 68: 0x7aca7e6a6ded - 69: 0x7aca7e72a0dc - 70: 0x0 - 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 make sure that you have updated to the latest nightly note: rustc 1.82.0-nightly (49649bf3c 2024-07-23) running on x86_64-unknown-linux-gnu note: compiler flags: -Z mir-opt-level=5 -Z dump-mir-dir=dir query stack during panic: #0 [optimized_mir] optimizing MIR for `handle_event::{closure#0}::{closure#0}` #1 [layout_of] computing layout of `{async block@/tmp/icemaker_global_tempdir.7wIEjd0lKecw/rustc_testrunner_tmpdir_reporting.168IfbM3nYxW/mvce.rs:6:5: 6:15}` end of query stack error: aborting due to 3 previous errors; 1 warning emitted Some errors have detailed explanations: E0412, E0574, E0601. For more information about an error, try `rustc --explain E0412`. ```

matthiaskrgr commented 1 month ago

120847