Open
Description
original:
pub fn iso<A, B, F1, F2>(a: F1, b: F2) -> (Box<dyn Fn(A) -> B>, Box<dyn Fn(B) -> A>)
where
F1: (Fn(A) -> B) + 'static,
F2: (Fn(B) -> A) + 'static,
{
(Box::new(a), Box::new(b))
}
pub fn iso_un_option<A, B>() -> (Box<dyn Fn(A) -> B>, Box<dyn Fn(B) -> A>) {
let left = |o_a: Option<_>| o_a.unwrap();
let right = |o_b: Option<_>| o_b.unwrap();
iso(left, right)
//~^ ERROR overflow
}
fn main() {}Version information
rustc 1.77.0-nightly (ae9d24de8 2024-01-09)
binary: rustc
commit-hash: ae9d24de80b00b4158d1a29a212a6b02aeda0e75
commit-date: 2024-01-09
host: x86_64-unknown-linux-gnu
release: 1.77.0-nightly
LLVM version: 17.0.6
Command:
/home/matthias/.rustup/toolchains/master/bin/rustc -Zthreads=16
Program output
error[E0275]: overflow evaluating the requirement `Option<_>: Sized`
--> mutual-recursion-issue-75860.rs:11:5
|
11 | iso(left, right)
| ^^^
|
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`mutual_recursion_issue_75860`)
note: required by a bound in `Option`
--> /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/option.rs:570:17
|
570 | pub enum Option<T> {
| ^ required by this bound in `Option`
thread 'rustc' panicked at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/compiler/rustc_query_system/src/query/plumbing.rs:290:29:
query 'typeck' not cached due to poisoning
stack backtrace:
0: 0x7fd35139f7e6 - std::backtrace_rs::backtrace::libunwind::trace::h92488e4bb2264071
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
1: 0x7fd35139f7e6 - std::backtrace_rs::backtrace::trace_unsynchronized::h97e02be157039c96
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7fd35139f7e6 - std::sys_common::backtrace::_print_fmt::h89a2b01cb3c33339
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/std/src/sys_common/backtrace.rs:68:5
3: 0x7fd35139f7e6 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::ha79772b33774e7af
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7fd3513f1ed0 - core::fmt::rt::Argument::fmt::h6d2228239beb9437
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/core/src/fmt/rt.rs:142:9
5: 0x7fd3513f1ed0 - core::fmt::write::h9bcb8c2e898ce4b2
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/core/src/fmt/mod.rs:1120:17
6: 0x7fd3513931df - std::io::Write::write_fmt::he7ba80727a5f8d75
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/std/src/io/mod.rs:1810:15
7: 0x7fd35139f5c4 - std::sys_common::backtrace::_print::h9bd2ce6833902b42
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7fd35139f5c4 - std::sys_common::backtrace::print::h09be6e715f2e0cc6
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7fd3513a2357 - std::panicking::default_hook::{{closure}}::h81ac1ebc9ea0357f
10: 0x7fd3513a20b9 - std::panicking::default_hook::hfc7d2f2254fbbaf6
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/std/src/panicking.rs:292:9
11: 0x7fd34e14e03c - std[e13db6861558cd66]::panicking::update_hook::<alloc[74e4b4cff019550b]::boxed::Box<rustc_driver_impl[f3f951fd75793e59]::install_ice_hook::{closure#0}>>::{closure#0}
12: 0x7fd3513a2aa6 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h864b8f962a42f35c
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/alloc/src/boxed.rs:2030:9
13: 0x7fd3513a2aa6 - std::panicking::rust_panic_with_hook::he5915ec9da668475
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/std/src/panicking.rs:783:13
14: 0x7fd3513a27f2 - std::panicking::begin_panic_handler::{{closure}}::h8912c4af58ae3d2d
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/std/src/panicking.rs:657:13
15: 0x7fd35139fce6 - std::sys_common::backtrace::__rust_end_short_backtrace::hfbc35781d5527627
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/std/src/sys_common/backtrace.rs:171:18
16: 0x7fd3513a2550 - rust_begin_unwind
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/std/src/panicking.rs:645:5
17: 0x7fd3513ee5d5 - core::panicking::panic_fmt::hc3a8fce14bfb5d21
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/core/src/panicking.rs:72:14
18: 0x7fd34e8cf76e - rustc_query_system[60e151975146506c]::query::plumbing::wait_for_query::<rustc_query_impl[ea3ef81316e32b43]::DynamicConfig<rustc_query_system[60e151975146506c]::query::caches::DefaultCache<rustc_span[b49aba93e0aaec5a]::def_id::LocalModDefId, rustc_middle[f3f21a744f51ef87]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[ea3ef81316e32b43]::plumbing::QueryCtxt>::{closure#0}
19: 0x7fd34e884016 - rustc_data_structures[b3be3651cdae3ab9]::outline::<rustc_query_system[60e151975146506c]::query::plumbing::wait_for_query<rustc_query_impl[ea3ef81316e32b43]::DynamicConfig<rustc_query_system[60e151975146506c]::query::caches::DefaultCache<rustc_span[b49aba93e0aaec5a]::def_id::LocalModDefId, rustc_middle[f3f21a744f51ef87]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[ea3ef81316e32b43]::plumbing::QueryCtxt>::{closure#0}, !>
20: 0x7fd34f639043 - rustc_query_system[60e151975146506c]::query::plumbing::try_execute_query::<rustc_query_impl[ea3ef81316e32b43]::DynamicConfig<rustc_query_system[60e151975146506c]::query::caches::VecCache<rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId, rustc_middle[f3f21a744f51ef87]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ea3ef81316e32b43]::plumbing::QueryCtxt, false>
21: 0x7fd34f638450 - rustc_query_impl[ea3ef81316e32b43]::query_impl::typeck::get_query_non_incr::__rust_end_short_backtrace
22: 0x7fd34fb43b4f - rustc_middle[f3f21a744f51ef87]::query::plumbing::query_get_at::<rustc_query_system[60e151975146506c]::query::caches::VecCache<rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId, rustc_middle[f3f21a744f51ef87]::query::erase::Erased<[u8; 8usize]>>>
23: 0x7fd34f70ff94 - rustc_hir_typeck[8a944b03b22eb18f]::typeck
24: 0x7fd34f70e475 - rustc_query_impl[ea3ef81316e32b43]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ea3ef81316e32b43]::query_impl::typeck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[f3f21a744f51ef87]::query::erase::Erased<[u8; 8usize]>>
25: 0x7fd34f6387b9 - rustc_query_system[60e151975146506c]::query::plumbing::try_execute_query::<rustc_query_impl[ea3ef81316e32b43]::DynamicConfig<rustc_query_system[60e151975146506c]::query::caches::VecCache<rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId, rustc_middle[f3f21a744f51ef87]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ea3ef81316e32b43]::plumbing::QueryCtxt, false>
26: 0x7fd34f638450 - rustc_query_impl[ea3ef81316e32b43]::query_impl::typeck::get_query_non_incr::__rust_end_short_backtrace
27: 0x7fd34f637cd4 - <rustc_middle[f3f21a744f51ef87]::hir::map::Map>::par_body_owners::<rustc_hir_analysis[4b3393f6b4683bc]::check_crate::{closure#6}>::{closure#0}
28: 0x7fd34e2177da - rayon[803db88657665571]::iter::plumbing::bridge_producer_consumer::helper::<rayon[803db88657665571]::slice::IterProducer<rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId>, rayon[803db88657665571]::iter::for_each::ForEachConsumer<rustc_data_structures[b3be3651cdae3ab9]::sync::parallel::enabled::par_for_each_in<&rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId, &[rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId], <rustc_middle[f3f21a744f51ef87]::hir::map::Map>::par_body_owners<rustc_hir_analysis[4b3393f6b4683bc]::check_crate::{closure#6}>::{closure#0}>::{closure#0}::{closure#0}>>
29: 0x7fd34e228d0f - rayon_core[f6201257676286fc]::join::join_context::<rayon[803db88657665571]::iter::plumbing::bridge_producer_consumer::helper<rayon[803db88657665571]::slice::IterProducer<rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId>, rayon[803db88657665571]::iter::for_each::ForEachConsumer<rustc_data_structures[b3be3651cdae3ab9]::sync::parallel::enabled::par_for_each_in<&rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId, &[rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId], <rustc_middle[f3f21a744f51ef87]::hir::map::Map>::par_body_owners<rustc_hir_analysis[4b3393f6b4683bc]::check_crate::{closure#6}>::{closure#0}>::{closure#0}::{closure#0}>>::{closure#0}, rayon[803db88657665571]::iter::plumbing::bridge_producer_consumer::helper<rayon[803db88657665571]::slice::IterProducer<rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId>, rayon[803db88657665571]::iter::for_each::ForEachConsumer<rustc_data_structures[b3be3651cdae3ab9]::sync::parallel::enabled::par_for_each_in<&rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId, &[rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId], <rustc_middle[f3f21a744f51ef87]::hir::map::Map>::par_body_owners<rustc_hir_analysis[4b3393f6b4683bc]::check_crate::{closure#6}>::{closure#0}>::{closure#0}::{closure#0}>>::{closure#1}, (), ()>::{closure#0}
30: 0x7fd34e217979 - rayon[803db88657665571]::iter::plumbing::bridge_producer_consumer::helper::<rayon[803db88657665571]::slice::IterProducer<rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId>, rayon[803db88657665571]::iter::for_each::ForEachConsumer<rustc_data_structures[b3be3651cdae3ab9]::sync::parallel::enabled::par_for_each_in<&rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId, &[rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId], <rustc_middle[f3f21a744f51ef87]::hir::map::Map>::par_body_owners<rustc_hir_analysis[4b3393f6b4683bc]::check_crate::{closure#6}>::{closure#0}>::{closure#0}::{closure#0}>>
31: 0x7fd34e23d952 - <rayon_core[f6201257676286fc]::job::StackJob<rayon_core[f6201257676286fc]::latch::SpinLatch, rayon_core[f6201257676286fc]::join::join_context::call_b<(), rayon[803db88657665571]::iter::plumbing::bridge_producer_consumer::helper<rayon[803db88657665571]::slice::IterProducer<rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId>, rayon[803db88657665571]::iter::for_each::ForEachConsumer<rustc_data_structures[b3be3651cdae3ab9]::sync::parallel::enabled::par_for_each_in<&rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId, &[rustc_span[b49aba93e0aaec5a]::def_id::LocalDefId], <rustc_middle[f3f21a744f51ef87]::hir::map::Map>::par_body_owners<rustc_hir_analysis[4b3393f6b4683bc]::check_crate::{closure#6}>::{closure#0}>::{closure#0}::{closure#0}>>::{closure#1}>::{closure#0}, ()> as rayon_core[f6201257676286fc]::job::Job>::execute
32: 0x7fd34dd57c75 - <rayon_core[f6201257676286fc]::registry::WorkerThread>::wait_until_cold
33: 0x7fd34dd54723 - <rayon_core[f6201257676286fc]::registry::ThreadBuilder>::run
34: 0x7fd34e14fd67 - <<crossbeam_utils[f8f63e1b9ece28c6]::thread::ScopedThreadBuilder>::spawn<<rayon_core[f6201257676286fc]::ThreadPoolBuilder>::build_scoped<rustc_interface[1dfaeeba2be2315d]::util::run_in_thread_pool_with_globals<rustc_interface[1dfaeeba2be2315d]::interface::run_compiler<core[6f83431ac1278f74]::result::Result<(), rustc_span[b49aba93e0aaec5a]::ErrorGuaranteed>, rustc_driver_impl[f3f951fd75793e59]::run_compiler::{closure#0}>::{closure#0}, core[6f83431ac1278f74]::result::Result<(), rustc_span[b49aba93e0aaec5a]::ErrorGuaranteed>>::{closure#3}::{closure#0}::{closure#0}, rustc_interface[1dfaeeba2be2315d]::util::run_in_thread_pool_with_globals<rustc_interface[1dfaeeba2be2315d]::interface::run_compiler<core[6f83431ac1278f74]::result::Result<(), rustc_span[b49aba93e0aaec5a]::ErrorGuaranteed>, rustc_driver_impl[f3f951fd75793e59]::run_compiler::{closure#0}>::{closure#0}, core[6f83431ac1278f74]::result::Result<(), rustc_span[b49aba93e0aaec5a]::ErrorGuaranteed>>::{closure#3}::{closure#0}::{closure#1}, core[6f83431ac1278f74]::result::Result<(), rustc_span[b49aba93e0aaec5a]::ErrorGuaranteed>>::{closure#0}::{closure#0}::{closure#0}, ()>::{closure#0} as core[6f83431ac1278f74]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
35: 0x7fd34e14929e - std[e13db6861558cd66]::sys_common::backtrace::__rust_begin_short_backtrace::<alloc[74e4b4cff019550b]::boxed::Box<dyn core[6f83431ac1278f74]::ops::function::FnOnce<(), Output = ()> + core[6f83431ac1278f74]::marker::Send>, ()>
36: 0x7fd34e14fa03 - <<std[e13db6861558cd66]::thread::Builder>::spawn_unchecked_<alloc[74e4b4cff019550b]::boxed::Box<dyn core[6f83431ac1278f74]::ops::function::FnOnce<(), Output = ()> + core[6f83431ac1278f74]::marker::Send>, ()>::{closure#1} as core[6f83431ac1278f74]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
37: 0x7fd3513ac9d5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb53ed9031b4e247a
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/alloc/src/boxed.rs:2016:9
38: 0x7fd3513ac9d5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hfb9a49e9b795584d
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/alloc/src/boxed.rs:2016:9
39: 0x7fd3513ac9d5 - std::sys::unix::thread::Thread::new::thread_start::h4db5c6ec45610220
at /rustc/ca663b06c5492ac2dde5e53cd11579fa8e4d68bd/library/std/src/sys/unix/thread.rs:108:17
40: 0x7fd34b2749eb - <unknown>
41: 0x7fd34b2f87cc - <unknown>
42: 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-2024-01-09T21_12_18-2691188.txt` to your bug report
note: compiler flags: -Z threads=16
query stack during panic:
thread panicked while processing panic. aborting.
[1] 2691188 IOT instruction rustc -Zthreads=16 mutual-recursion-issue-75860.rs