ICE: no errors encountered even though `delay_span_bug` issued (regression on 2023-10-12) #116684

xxchan · 2023-10-13T06:19:12Z

Can be reproduced by:

# I believe which commit doesn't matter. But tested on f27182f35cad6831b5751f677f32645aa1321613, and also 7761c4ff18b19718d8dbde5e862505e8bbdef74e
git clone https://github.com/risingwavelabs/risingwave 
cargo +nightly check

Sorry for not having a minimal example yet.

Error output

error: internal compiler error: no errors encountered even though `delay_span_bug` issued

error: internal compiler error: ambiguity performing ParamEnvAnd { param_env: ParamEnv { caller_bounds: [Binder { value: OutlivesPredicate(ReEarlyBound(DefId(0:589 ~ risingwave_compute[0de4]::rpc::service::exchange_service::{impl#2}::get_stream::'life0), 0, 'life0), ReEarlyBound(DefId(0:590 ~ risingwave_compute[0de4]::rpc::service::exchange_service::{impl#2}::get_stream::'async_trait), 1, 'async_trait)), bound_vars: [] }, Binder { value: OutlivesPredicate(rpc::service::exchange_service::ExchangeServiceImpl, ReEarlyBound(DefId(0:590 ~ risingwave_compute[0de4]::rpc::service::exchange_service::{impl#2}::get_stream::'async_trait), 1, 'async_trait)), bound_vars: [] }], reveal: UserFacing }, value: ProvePredicate { predicate: Binder { value: TraitPredicate(<std::pin::Pin<std::boxed::Box<{async block@src/compute/src/rpc/service/exchange_service.rs:77:71: 116:6}>> as std::ops::CoerceUnsized<std::pin::Pin<std::boxed::Box<dyn futures::Future<Output = std::result::Result<madsim_tonic::Response<impl tokio_stream::Stream<Item = std::result::Result<risingwave_pb::task_service::GetStreamResponse, madsim_tonic::Status>>>, madsim_tonic::Status>> + std::marker::Send>>>>, polarity:Positive), bound_vars: [] } } }
   --> src/compute/src/rpc/service/exchange_service.rs:77:71
    |
77  |       ) -> std::result::Result<Response<Self::GetStreamStream>, Status> {
    |  _______________________________________________________________________^
78  | |         use risingwave_pb::task_service::get_stream_request::*;
79  | |
80  | |         let peer_addr = request
...   |
115 | |         )))
116 | |     }
    | |_____^
    |
note: delayed at /rustc/475c71da0710fd1d40c046f9cee04b733b5b2b51/compiler/rustc_trait_selection/src/traits/query/type_op/mod.rs:170:26
         0: <rustc_errors::HandlerInner>::emit_diagnostic
         1: <rustc_errors::Handler>::delay_span_bug::<rustc_span::span_encoding::Span, alloc::string::String>
         2: <rustc_borrowck::type_check::TypeChecker>::prove_trait_ref
         3: <rustc_borrowck::type_check::TypeChecker>::typeck_mir
         4: rustc_borrowck::type_check::type_check
         5: rustc_borrowck::nll::compute_regions
         6: rustc_borrowck::do_mir_borrowck
         7: rustc_borrowck::mir_borrowck
         8: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::mir_borrowck::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
         9: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
        10: rustc_query_impl::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace
        11: <rustc_hir_analysis::collect::type_of::opaque::TaitConstraintLocator>::check
        12: <rustc_hir_analysis::collect::type_of::opaque::TaitConstraintLocator as rustc_hir::intravisit::Visitor>::visit_impl_item
        13: <rustc_hir_analysis::collect::type_of::opaque::TaitConstraintLocator as rustc_hir::intravisit::Visitor>::visit_item
        14: <rustc_hir_analysis::collect::type_of::opaque::TaitConstraintLocator as rustc_hir::intravisit::Visitor>::visit_item
        15: rustc_hir_analysis::collect::type_of::type_of_opaque
        16: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::type_of_opaque::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
        17: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
        18: rustc_query_impl::query_impl::type_of_opaque::get_query_non_incr::__rust_end_short_backtrace
        19: rustc_middle::query::plumbing::query_get_at::<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, rustc_middle::query::erase::Erased<[u8; 8]>>>
        20: rustc_hir_analysis::collect::type_of::type_of
        21: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::type_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
        22: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
        23: rustc_query_impl::query_impl::type_of::get_query_non_incr::__rust_end_short_backtrace
        24: rustc_middle::query::plumbing::query_get_at::<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, rustc_middle::query::erase::Erased<[u8; 8]>>>
        25: rustc_hir_analysis::check::check::check_mod_item_types
        26: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::check_mod_item_types::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 0]>>
        27: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::LocalModDefId, rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
        28: rustc_query_impl::query_impl::check_mod_item_types::get_query_non_incr::__rust_end_short_backtrace
        29: rustc_hir_analysis::check_crate
        30: rustc_interface::passes::analysis
        31: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 1]>>
        32: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
        33: rustc_query_impl::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
        34: std::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface::util::run_in_thread_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>
        35: <<std::thread::Builder>::spawn_unchecked_<rustc_interface::util::run_in_thread_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
        36: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
                   at /rustc/475c71da0710fd1d40c046f9cee04b733b5b2b51/library/alloc/src/boxed.rs:2007:9
        37: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
                   at /rustc/475c71da0710fd1d40c046f9cee04b733b5b2b51/library/alloc/src/boxed.rs:2007:9
        38: std::sys::unix::thread::Thread::new::thread_start
                   at /rustc/475c71da0710fd1d40c046f9cee04b733b5b2b51/library/std/src/sys/unix/thread.rs:108:17
        39: <unknown>
        40: <unknown>
   --> src/compute/src/rpc/service/exchange_service.rs:77:71
    |
77  |       ) -> std::result::Result<Response<Self::GetStreamStream>, Status> {
    |  _______________________________________________________________________^
78  | |         use risingwave_pb::task_service::get_stream_request::*;
79  | |
80  | |         let peer_addr = request
...   |
115 | |         )))
116 | |     }
    | |_____^

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 `/home/runner/work/risingwave/risingwave/rustc-ice-2023-10-13T00:18:36.192779807Z-56318.txt` to your bug report

note: compiler flags: --crate-type lib -C lto=off -C embed-bitcode=no -C target-feature=+avx2 -C link-arg=-fuse-ld=lld -C link-arg=-Wl,--no-rosegment

Backtrace

<backtrace>

The text was updated successfully, but these errors were encountered:

matthiaskrgr · 2023-10-13T07:07:51Z

This might be a duplicate of #108498 @aliemjay will know more I believe :)

albertlarsan68 · 2023-10-13T08:05:01Z

I am minimizing this huge repo, I'll report when I have a result.

matthiaskrgr · 2023-10-13T08:21:19Z

https://github.com/matthiaskrgr/glacier2/blob/master/ices/108498.rs reproduces an ice with very similar stacktrace

aliemjay · 2023-10-13T23:10:25Z

does the code compile before #114586 (i.e in nightly-10-09-2023)?

xxchan · 2023-10-14T02:36:02Z

Yes, it compiles in 2023-10-09.

…

On Sat, Oct 14, 2023 at 7:10 AM Ali MJ Al-Nasrawy ***@***.***> wrote: does the code compiles before #114586 <#114586> (i.e in nightly-10-09-2023)? — Reply to this email directly, view it on GitHub <#116684 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AJBQZNPT5CQMXQ6D6WOAISTX7HC6ZAVCNFSM6AAAAAA56UVS5GVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTONRSGM3DMMRXGA> . You are receiving this because you authored the thread.Message ID: ***@***.***>

aliemjay · 2023-10-14T03:55:58Z

Yes, it compiles in 2023-10-09.

sorry, wrong date format. I meant 2023-09-10

xxchan · 2023-10-14T04:08:16Z

Yes. 2023-09-10 is ok. BTW, we are currently mainly using 2023-09-09 ( https://github.com/risingwavelabs/risingwave/blob/main/ci/rust-toolchain)

…

On Sat, Oct 14, 2023 at 11:56 AM Ali MJ Al-Nasrawy ***@***.***> wrote: Yes, it compiles in 2023-10-09. sorry, wrong date format. I meant 2023-09-10 — Reply to this email directly, view it on GitHub <#116684 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AJBQZNJSJHNBZUNXUYYWSUTX7IENVAVCNFSM6AAAAAA56UVS5GVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTONRSGU2TANJQHE> . You are receiving this because you authored the thread.Message ID: ***@***.***>

aliemjay · 2023-10-14T05:29:53Z

@rustbot claim

aliemjay · 2023-10-17T19:39:25Z

MCVE:

#![feature(type_alias_impl_trait)]

fn rpit() -> impl Sized {}

pub type Tait = impl Sized;

pub fn foo() -> Box<dyn std::future::Future<Output = Tait>> {
    Box::new(async {
        let _out: Tait = rpit();
        _out
    })
}

@rustbot label -E-needs-mcve

Rollup merge of rust-lang#116879 - aliemjay:revert-opaque-bubble, r=oli-obk revert rust-lang#114586 Reverts rust-lang#114586. cc rust-lang#116877 (not closing until this gets a beta backport) fixes rust-lang#116684 fixes rust-lang#114586 (comment) r? `@oli-obk` or `@lcnr`

xxchan added C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Oct 13, 2023

rustbot added the needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. label Oct 13, 2023

xxchan changed the title ~~ICE: no errors encountered even though delay_span_bug issued (regression on 2023-10-11)~~ ICE: no errors encountered even though delay_span_bug issued (regression on 2023-10-12) Oct 13, 2023

rustbot assigned aliemjay Oct 14, 2023

JohnTitor added the E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example label Oct 15, 2023

rustbot removed the E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example label Oct 17, 2023

aliemjay added F-type_alias_impl_trait `#[feature(type_alias_impl_trait)]` requires-nightly This issue requires a nightly compiler in some way. and removed needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. labels Oct 17, 2023

aliemjay mentioned this issue Oct 18, 2023

revert #114586 #116879

Merged

bors closed this as completed in 8489bce Oct 18, 2023

bors closed this as completed in #116879 Oct 18, 2023

apiraino mentioned this issue Nov 14, 2023

ICE: <_ as MyTrait<Ty1>>::Out where trait MyTrait<T: OtherTrait<Assoc = Self>>> on nightly #117577

Closed

matthiaskrgr mentioned this issue Sep 27, 2024

ICE: broken mir: Unsize coercion, but &Foo<[impl Sized; 2]> isn't coercible to &Foo<[i32]> #130921

Closed

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ICE: no errors encountered even though `delay_span_bug` issued (regression on 2023-10-12) #116684

ICE: no errors encountered even though `delay_span_bug` issued (regression on 2023-10-12) #116684

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ICE: no errors encountered even though delay_span_bug issued (regression on 2023-10-12) #116684

ICE: no errors encountered even though delay_span_bug issued (regression on 2023-10-12) #116684

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ICE: no errors encountered even though `delay_span_bug` issued (regression on 2023-10-12) #116684

ICE: no errors encountered even though `delay_span_bug` issued (regression on 2023-10-12) #116684

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