Closed
Description
Hi,
Thanks for building my most loved programming language! I encountered a compilation error building combine=4.6.6 in a docker container (rust:latest) on toolchain nightly. It does not happen on the host system but only in the docker build. I am not entirely sure if I should rather open an issue over at the rust docker repo. If yes, let me know.
Code
I boiled it down to the combine crate. I attached a minimalistic crate example (combine-bug.zip). Run
docker build
on a M1.
Meta
rustc --version --verbose:
rustc 1.69.0-nightly (50d3ba5bc 2023-02-04)
binary: rustc
commit-hash: 50d3ba5bcbf5c7e13d4ce068d3339710701dd603
commit-date: 2023-02-04
host: aarch64-unknown-linux-gnu
release: 1.69.0-nightly
LLVM version: 15.0.7
Error output
Compiling combine v4.6.6
error: internal compiler error: no errors encountered even though `delay_span_bug` issued
error: internal compiler error: broken MIR in Item(WithOptConstParam { did: DefId(0:3469 ~ combine[ba33]::stream::{impl#47}::reset), const_param_did: None }) (after phase change to runtime-optimized) at bb0[2]:
encountered `Assign((_0, const Result::<(), StringStreamError>::Ok(())))` with incompatible types:
left-hand side has type: Result<(), <&str as StreamOnce>::Error>
right-hand side has type: Result<(), StringStreamError>
--> /usr/local/cargo/registry/src/github.com-1ecc6299db9ec823/combine-4.6.6/src/stream/mod.rs:44:17
|
44 | Ok(())
| ^^^^^^
...
153 | clone_resetable! {('a) &'a str}
| ------------------------------- in this macro invocation
Backtrace
root@ca48a006b8bf:~/bug/bug-report# cargo build
Compiling combine v4.6.6
error: internal compiler error: no errors encountered even though `delay_span_bug` issued
error: internal compiler error: broken MIR in Item(WithOptConstParam { did: DefId(0:3469 ~ combine[ba33]::stream::{impl#47}::reset), const_param_did: None }) (after phase change to runtime-optimized) at bb0[2]:
encountered `Assign((_0, const Result::<(), StringStreamError>::Ok(())))` with incompatible types:
left-hand side has type: Result<(), <&str as StreamOnce>::Error>
right-hand side has type: Result<(), StringStreamError>
--> /usr/local/cargo/registry/src/github.com-1ecc6299db9ec823/combine-4.6.6/src/stream/mod.rs:44:17
|
44 | Ok(())
| ^^^^^^
...
153 | clone_resetable! {('a) &'a str}
| ------------------------------- in this macro invocation
|
= note: delayed at 0: std::backtrace_rs::backtrace::libunwind::trace
at /rustc/50d3ba5bcbf5c7e13d4ce068d3339710701dd603/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
1: std::backtrace_rs::backtrace::trace_unsynchronized
at /rustc/50d3ba5bcbf5c7e13d4ce068d3339710701dd603/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: std::backtrace::Backtrace::create
at /rustc/50d3ba5bcbf5c7e13d4ce068d3339710701dd603/library/std/src/backtrace.rs:332:13
3: <rustc_errors::HandlerInner>::emit_diagnostic
4: <rustc_errors::Handler>::delay_span_bug::<rustc_span::span_encoding::Span, &alloc::string::String>
5: <rustc_const_eval::transform::validate::TypeChecker>::fail::<alloc::string::String>
6: <rustc_const_eval::transform::validate::TypeChecker as rustc_middle::mir::visit::Visitor>::visit_statement
7: <rustc_const_eval::transform::validate::Validator as rustc_middle::mir::MirPass>::run_pass
8: rustc_mir_transform::pass_manager::run_passes_inner
9: rustc_mir_transform::optimized_mir
10: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::queries::optimized_mir, rustc_query_impl::plumbing::QueryCtxt>
11: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::optimized_mir, rustc_query_impl::plumbing::QueryCtxt, rustc_middle::dep_graph::dep_node::DepKind>
12: <rustc_metadata::rmeta::encoder::EncodeContext>::encode_crate_root
13: rustc_metadata::rmeta::encoder::encode_metadata_impl
14: rustc_data_structures::sync::join::<rustc_metadata::rmeta::encoder::encode_metadata::{closure#0}, rustc_metadata::rmeta::encoder::encode_metadata::{closure#1}, (), ()>
15: rustc_metadata::rmeta::encoder::encode_metadata
16: rustc_metadata::fs::encode_and_write_metadata
17: rustc_interface::passes::start_codegen
18: <rustc_interface::passes::QueryContext>::enter::<<rustc_interface::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core::result::Result<alloc::boxed::Box<dyn core::any::Any>, rustc_errors::ErrorGuaranteed>>
19: <rustc_interface::queries::Queries>::ongoing_codegen
20: <rustc_interface::interface::Compiler>::enter::<rustc_driver_impl::run_compiler::{closure#1}::{closure#2}, core::result::Result<core::option::Option<rustc_interface::queries::Linker>, rustc_errors::ErrorGuaranteed>>
21: rustc_span::with_source_map::<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
22: <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>
23: std::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>
24: <<std::thread::Builder>::spawn_unchecked_<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_errors::ErrorGuaranteed>>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
25: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
at /rustc/50d3ba5bcbf5c7e13d4ce068d3339710701dd603/library/alloc/src/boxed.rs:1988:9
26: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
at /rustc/50d3ba5bcbf5c7e13d4ce068d3339710701dd603/library/alloc/src/boxed.rs:1988:9
27: std::sys::unix::thread::Thread::new::thread_start
at /rustc/50d3ba5bcbf5c7e13d4ce068d3339710701dd603/library/std/src/sys/unix/thread.rs:108:17
28: start_thread
29: <unknown>
= note: this error: internal compiler error originates in the macro `clone_resetable` (in Nightly builds, run with -Z macro-backtrace for more info)
note: 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: rustc 1.69.0-nightly (50d3ba5bc 2023-02-04) running on aarch64-unknown-linux-gnu
note: compiler flags: --crate-type lib -C embed-bitcode=no -C debuginfo=2
note: some of the compiler flags provided by cargo are hidden
query stack during panic:
end of query stack
error: could not compile `combine`