Internal Compiler Error in rustc with axum-client-ip-0.6.1

[Aranjedeath]

.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/axum-client-ip-0.6.1/rustc-ice-2024-12-20T03_09_48-55159.txt

error occurs in crate axum-client-ip-0.6.1

(I don't know what any of this means, I am just doing as requested by cargo/rustc)

query stack during panic:
#0 [mir_built] building MIR for `secure::_::<impl at /home/aranjedeath/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/axum-client-ip-0.6.1/src/secure.rs:37:24: 37:35>::deserialize::<impl at /home/aranjedeath/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/axum-client-ip-0.6.1/src/secure.rs:37:24: 37:35>::visit_enum`
#1 [check_unsafety] unsafety-checking `secure::_::<impl at /home/aranjedeath/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/axum-client-ip-0.6.1/src/secure.rs:37:24: 37:35>::deserialize::<impl at /home/aranjedeath/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/axum-client-ip-0.6.1/src/secure.rs:37:24: 37:35>::visit_enum`
end of query stack

rustc-ice-2024-12-20T03_13_04-81536.txt

[jieyouxu]

Re-including ICE message so it shows up in search

ICE

thread 'rustc' panicked at compiler/rustc_mir_build/src/builder/scope.rs:1724:17:
Box<dyn Any>
stack backtrace:
   0:     0x16ce8d8686d5 - std::backtrace_rs::backtrace::libunwind::trace::h904121e00a845c7f
                               at /rustc/9e136a30a965bf4e63f03095c57df7257bf96fd6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
   1:     0x16ce8d8686d5 - std::backtrace_rs::backtrace::trace_unsynchronized::h1aae34ad510d6147
                               at /rustc/9e136a30a965bf4e63f03095c57df7257bf96fd6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x16ce8d8686d5 - std::backtrace::Backtrace::create::h3be366f4f51f7ab7
                               at /rustc/9e136a30a965bf4e63f03095c57df7257bf96fd6/library/std/src/backtrace.rs:331:13
   3:     0x16ce8d868625 - std::backtrace::Backtrace::force_capture::h8b259855fc4325a0
                               at /rustc/9e136a30a965bf4e63f03095c57df7257bf96fd6/library/std/src/backtrace.rs:312:9
   4:     0x16ce8786e0f7 - <alloc[369e840eecbe44b9]::boxed::Box<rustc_driver_impl[4cb7f679d55ee709]::install_ice_hook::{closure#0}> as core[6d384c12ead5b233]::ops::function::Fn<(&dyn for<'a, 'b> core[6d384c12ead5b233]::ops::function::Fn<(&'a std[b76d46389e1f9dbc]::panic::PanicHookInfo<'b>,), Output = ()> + core[6d384c12ead5b233]::marker::Sync + core[6d384c12ead5b233]::marker::Send, &std[b76d46389e1f9dbc]::panic::PanicHookInfo)>>::call
   5:     0x16ce8d8825a8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6f789b09f8bd1e4d
                               at /rustc/9e136a30a965bf4e63f03095c57df7257bf96fd6/library/alloc/src/boxed.rs:1984:9
   6:     0x16ce8d8825a8 - std::panicking::rust_panic_with_hook::hab98cdbe75c377da
                               at /rustc/9e136a30a965bf4e63f03095c57df7257bf96fd6/library/std/src/panicking.rs:825:13
   7:     0x16ce8d499c33 - std[b76d46389e1f9dbc]::panicking::begin_panic::<rustc_errors[ae8600090373afe5]::ExplicitBug>::{closure#0}
   8:     0x16ce8d4998f6 - std[b76d46389e1f9dbc]::sys::backtrace::__rust_end_short_backtrace::<std[b76d46389e1f9dbc]::panicking::begin_panic<rustc_errors[ae8600090373afe5]::ExplicitBug>::{closure#0}, !>
   9:     0x16ce8778122a - std[b76d46389e1f9dbc]::panicking::begin_panic::<rustc_errors[ae8600090373afe5]::ExplicitBug>
  10:     0x16ce8d475432 - <rustc_errors[ae8600090373afe5]::diagnostic::BugAbort as rustc_errors[ae8600090373afe5]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
  11:     0x16ce8d1b2440 - <rustc_errors[ae8600090373afe5]::DiagCtxtHandle>::span_bug::<rustc_span[b1dfbefceb83f0d4]::span_encoding::Span, alloc[369e840eecbe44b9]::string::String>
  12:     0x16ce8d331974 - rustc_middle[6744e703aaf52f6c]::util::bug::opt_span_bug_fmt::<rustc_span[b1dfbefceb83f0d4]::span_encoding::Span>::{closure#0}
  13:     0x16ce8d322b7a - rustc_middle[6744e703aaf52f6c]::ty::context::tls::with_opt::<rustc_middle[6744e703aaf52f6c]::util::bug::opt_span_bug_fmt<rustc_span[b1dfbefceb83f0d4]::span_encoding::Span>::{closure#0}, !>::{closure#0}
  14:     0x16ce8d322b24 - rustc_middle[6744e703aaf52f6c]::ty::context::tls::with_context_opt::<rustc_middle[6744e703aaf52f6c]::ty::context::tls::with_opt<rustc_middle[6744e703aaf52f6c]::util::bug::opt_span_bug_fmt<rustc_span[b1dfbefceb83f0d4]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  15:     0x16ce8777537a - rustc_middle[6744e703aaf52f6c]::util::bug::span_bug_fmt::<rustc_span[b1dfbefceb83f0d4]::span_encoding::Span>
  16:     0x16ce8b1eb49d - <rustc_mir_build[8ea580628f1f669]::builder::scope::DropTree>::build_mir::<rustc_mir_build[8ea580628f1f669]::builder::scope::Unwind>
  17:     0x16ce8b1dbcb8 - <rustc_mir_build[8ea580628f1f669]::builder::Builder>::build_unwind_tree
  18:     0x16ce8b1db7ff - <rustc_mir_build[8ea580628f1f669]::builder::Builder>::build_drop_trees
  19:     0x16ce8b1bc94a - rustc_mir_build[8ea580628f1f669]::builder::mir_build
  20:     0x16ce8b1603b9 - rustc_mir_transform[7265790942f01996]::mir_built
  21:     0x16ce8c070b00 - rustc_query_impl[ef4c64899dc0034b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ef4c64899dc0034b]::query_impl::mir_built::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6744e703aaf52f6c]::query::erase::Erased<[u8; 8usize]>>
  22:     0x16ce8c0fe81c - <rustc_query_impl[ef4c64899dc0034b]::query_impl::mir_built::dynamic_query::{closure#2} as core[6d384c12ead5b233]::ops::function::FnOnce<(rustc_middle[6744e703aaf52f6c]::ty::context::TyCtxt, rustc_span[b1dfbefceb83f0d4]::def_id::LocalDefId)>>::call_once
  23:     0x16ce8c005668 - rustc_query_system[be8b6bfc93c0cc71]::query::plumbing::try_execute_query::<rustc_query_impl[ef4c64899dc0034b]::DynamicConfig<rustc_data_structures[4c21fa878d2a2e33]::vec_cache::VecCache<rustc_span[b1dfbefceb83f0d4]::def_id::LocalDefId, rustc_middle[6744e703aaf52f6c]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[be8b6bfc93c0cc71]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[ef4c64899dc0034b]::plumbing::QueryCtxt, false>
  24:     0x16ce8c1082cd - rustc_query_impl[ef4c64899dc0034b]::query_impl::mir_built::get_query_non_incr::__rust_end_short_backtrace
  25:     0x16ce8b1fdb73 - rustc_mir_build[8ea580628f1f669]::check_unsafety::check_unsafety
  26:     0x16ce8c0697fc - rustc_query_impl[ef4c64899dc0034b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ef4c64899dc0034b]::query_impl::check_unsafety::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6744e703aaf52f6c]::query::erase::Erased<[u8; 0usize]>>
  27:     0x16ce8c20091c - <rustc_query_impl[ef4c64899dc0034b]::query_impl::check_unsafety::dynamic_query::{closure#2} as core[6d384c12ead5b233]::ops::function::FnOnce<(rustc_middle[6744e703aaf52f6c]::ty::context::TyCtxt, rustc_span[b1dfbefceb83f0d4]::def_id::LocalDefId)>>::call_once
  28:     0x16ce8bff64e8 - rustc_query_system[be8b6bfc93c0cc71]::query::plumbing::try_execute_query::<rustc_query_impl[ef4c64899dc0034b]::DynamicConfig<rustc_data_structures[4c21fa878d2a2e33]::vec_cache::VecCache<rustc_span[b1dfbefceb83f0d4]::def_id::LocalDefId, rustc_middle[6744e703aaf52f6c]::query::erase::Erased<[u8; 0usize]>, rustc_query_system[be8b6bfc93c0cc71]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[ef4c64899dc0034b]::plumbing::QueryCtxt, false>
  29:     0x16ce8c112ff4 - rustc_query_impl[ef4c64899dc0034b]::query_impl::check_unsafety::get_query_non_incr::__rust_end_short_backtrace
  30:     0x16ce87a649e6 - <rustc_middle[6744e703aaf52f6c]::hir::map::Map>::par_body_owners::<rustc_interface[70fa2feb797d2dde]::passes::run_required_analyses::{closure#2}::{closure#0}>::{closure#0}
  31:     0x16ce87a532bb - <rustc_session[b463851669bfc3da]::session::Session>::time::<(), rustc_interface[70fa2feb797d2dde]::passes::run_required_analyses::{closure#2}>
  32:     0x16ce87a21bd7 - rustc_interface[70fa2feb797d2dde]::passes::analysis
  33:     0x16ce8c0705da - rustc_query_impl[ef4c64899dc0034b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ef4c64899dc0034b]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6744e703aaf52f6c]::query::erase::Erased<[u8; 0usize]>>
  34:     0x16ce8c204458 - <rustc_query_impl[ef4c64899dc0034b]::query_impl::analysis::dynamic_query::{closure#2} as core[6d384c12ead5b233]::ops::function::FnOnce<(rustc_middle[6744e703aaf52f6c]::ty::context::TyCtxt, ())>>::call_once
  35:     0x16ce8bf55a0e - rustc_query_system[be8b6bfc93c0cc71]::query::plumbing::try_execute_query::<rustc_query_impl[ef4c64899dc0034b]::DynamicConfig<rustc_query_system[be8b6bfc93c0cc71]::query::caches::SingleCache<rustc_middle[6744e703aaf52f6c]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[ef4c64899dc0034b]::plumbing::QueryCtxt, false>
  36:     0x16ce8c1038aa - rustc_query_impl[ef4c64899dc0034b]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
  37:     0x16ce8783b95e - <rustc_middle[6744e703aaf52f6c]::ty::context::TyCtxt>::create_global_ctxt::<core[6d384c12ead5b233]::option::Option<rustc_interface[70fa2feb797d2dde]::queries::Linker>, rustc_interface[70fa2feb797d2dde]::passes::create_and_enter_global_ctxt<core[6d384c12ead5b233]::option::Option<rustc_interface[70fa2feb797d2dde]::queries::Linker>, rustc_driver_impl[4cb7f679d55ee709]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}>
  38:     0x16ce878023bb - <rustc_interface[70fa2feb797d2dde]::passes::create_and_enter_global_ctxt<core[6d384c12ead5b233]::option::Option<rustc_interface[70fa2feb797d2dde]::queries::Linker>, rustc_driver_impl[4cb7f679d55ee709]::run_compiler::{closure#0}::{closure#2}>::{closure#2} as core[6d384c12ead5b233]::ops::function::FnOnce<(&rustc_interface[70fa2feb797d2dde]::interface::Compiler, &std[b76d46389e1f9dbc]::sync::once_lock::OnceLock<rustc_middle[6744e703aaf52f6c]::ty::context::GlobalCtxt>, &rustc_data_structures[4c21fa878d2a2e33]::sync::worker_local::WorkerLocal<rustc_middle[6744e703aaf52f6c]::arena::Arena>, &rustc_data_structures[4c21fa878d2a2e33]::sync::worker_local::WorkerLocal<rustc_hir[ee3933a93d424554]::Arena>, rustc_driver_impl[4cb7f679d55ee709]::run_compiler::{closure#0}::{closure#2})>>::call_once::{shim:vtable#0}
  39:     0x16ce877e87e0 - rustc_interface[70fa2feb797d2dde]::passes::create_and_enter_global_ctxt::<core[6d384c12ead5b233]::option::Option<rustc_interface[70fa2feb797d2dde]::queries::Linker>, rustc_driver_impl[4cb7f679d55ee709]::run_compiler::{closure#0}::{closure#2}>
  40:     0x16ce8780b660 - <scoped_tls[d8bcf36d2f954050]::ScopedKey<rustc_span[b1dfbefceb83f0d4]::SessionGlobals>>::set::<rustc_interface[70fa2feb797d2dde]::util::run_in_thread_with_globals<rustc_interface[70fa2feb797d2dde]::util::run_in_thread_pool_with_globals<rustc_interface[70fa2feb797d2dde]::interface::run_compiler<(), rustc_driver_impl[4cb7f679d55ee709]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}::{closure#0}, ()>
  41:     0x16ce87854f6c - rustc_span[b1dfbefceb83f0d4]::create_session_globals_then::<(), rustc_interface[70fa2feb797d2dde]::util::run_in_thread_with_globals<rustc_interface[70fa2feb797d2dde]::util::run_in_thread_pool_with_globals<rustc_interface[70fa2feb797d2dde]::interface::run_compiler<(), rustc_driver_impl[4cb7f679d55ee709]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}::{closure#0}>
  42:     0x16ce87873f02 - std[b76d46389e1f9dbc]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[70fa2feb797d2dde]::util::run_in_thread_with_globals<rustc_interface[70fa2feb797d2dde]::util::run_in_thread_pool_with_globals<rustc_interface[70fa2feb797d2dde]::interface::run_compiler<(), rustc_driver_impl[4cb7f679d55ee709]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
  43:     0x16ce87813ef3 - <<std[b76d46389e1f9dbc]::thread::Builder>::spawn_unchecked_<rustc_interface[70fa2feb797d2dde]::util::run_in_thread_with_globals<rustc_interface[70fa2feb797d2dde]::util::run_in_thread_pool_with_globals<rustc_interface[70fa2feb797d2dde]::interface::run_compiler<(), rustc_driver_impl[4cb7f679d55ee709]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[6d384c12ead5b233]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  44:     0x16ce8d88b36b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h3da1b2c2e3f72616
                               at /rustc/9e136a30a965bf4e63f03095c57df7257bf96fd6/library/alloc/src/boxed.rs:1970:9
  45:     0x16ce8d88b36b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha3ec4c9b3186a532
                               at /rustc/9e136a30a965bf4e63f03095c57df7257bf96fd6/library/alloc/src/boxed.rs:1970:9
  46:     0x16ce8d88b36b - std::sys::pal::unix::thread::Thread::new::thread_start::hd7b6bc191a3bbea6
                               at /rustc/9e136a30a965bf4e63f03095c57df7257bf96fd6/library/std/src/sys/pal/unix/thread.rs:105:17
  47:     0x16ce938dab05 - thread_start
                               at /usr/src/lib/libthr/thread/thr_create.c:289:16


rustc version: 1.85.0-nightly (9e136a30a 2024-12-19)
platform: x86_64-unknown-freebsd

query stack during panic:
#0 [mir_built] building MIR for `secure::_::<impl at /home/aranjedeath/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/axum-client-ip-0.6.1/src/secure.rs:37:24: 37:35>::deserialize::<impl at /home/aranjedeath/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/axum-client-ip-0.6.1/src/secure.rs:37:24: 37:35>::visit_enum`
#1 [check_unsafety] unsafety-checking `secure::_::<impl at /home/aranjedeath/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/axum-client-ip-0.6.1/src/secure.rs:37:24: 37:35>::deserialize::<impl at /home/aranjedeath/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/axum-client-ip-0.6.1/src/secure.rs:37:24: 37:35>::visit_enum`
#2 [analysis] running analysis passes on this crate
end of query stack

[jieyouxu]

Locally with cargo +nightly check:

error: internal compiler error: compiler/rustc_mir_build/src/builder/scope.rs:1724:17: cannot unwind from goto -> bb198

[jieyouxu]

searched nightlies: from nightly-2024-07-20 to nightly-2024-12-20
regressed nightly: nightly-2024-10-30
searched commit range: 3f1be1e...1e4f10b
regressed commit: 1e4f10b

bisected with cargo-bisect-rustc v0.6.8

Host triple: aarch64-unknown-linux-gnu
Reproduce with:

cargo bisect-rustc --start=1.81.0

[jieyouxu]

This might be #131984 but I need to check locally.
EDIT: a revert of #131984 locally doesn't fix it, hmm.

[Aranjedeath]

Thank you for testing it this far back. I tried using rustup to "go to a previous nightly" and reverted to 11-18 nightly and it failed the same way. I can provide what is on my terminal when this fails, if that would be helpful.

[jieyouxu]

Thank you for testing it this far back. I tried using rustup to "go to a previous nightly" and reverted to 11-18 nightly and it failed the same way. I can provide what is on my terminal when this fails, if that would be helpful.

If it also says "error: internal compiler error: ... cannot unwind from goto -> bb198" or very similar, then it's the same problem.

[jieyouxu]

Hmm okay, I believe my bisection was wrong, not sure why it bisected to that previously.
EDIT: or is it? Ah, it's because:

• Stable doesn't error with if_let_rescope.
• Beta errors with if_let_rescope.

error: `if let` assigns a shorter lifetime since Edition 2024
   --> src/secure.rs:134:12
    |
134 |         if let Some(ip_source) = parts.extensions.get() {
    |            ^^^^^^^^^^^^^^^^^^^^^^----------------^^^^^^
    |                                  |
    |                                  this value has a significant drop implementation which may observe a major change in drop order and requires your discretion
    |
    = warning: this changes meaning in Rust 2024
    = note: for more information, see issue #124085 <https://github.com/rust-lang/rust/issues/124085>
help: the value is now dropped here in Edition 2024
   --> src/secure.rs:136:9
    |
136 |         } else {
    |         ^
    = note: `-D if-let-rescope` implied by `-D rust-2024-compatibility`
    = help: to override `-D rust-2024-compatibility` add `#[allow(if_let_rescope)]`
help: a `match` with a single arm can preserve the drop order up to Edition 2021
    |
134 ~         match parts.extensions.get() { Some(ip_source) => {
135 |             Ok(Self::from(ip_source, &parts.headers, &parts.extensions)?)
136 ~         } _ => {
137 |             Err("Can't extract `SecureClientIp`, add `SecureClientIpSource` into extensions".into())
138 ~         }}

• Nightly ICEs.

Another bisection attempt (error -> ICE) points to 11663cd.