[INFO] fetching crate fast-btree 0.1.0...
[INFO] checking fast-btree-0.1.0 against 3154cc1a3e6424e44f438a95007d043ed5ceaaf6 for pr-133502-30
[INFO] extracting crate fast-btree 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate fast-btree 0.1.0
[INFO] finished tweaking crates.io crate fast-btree 0.1.0
[INFO] tweaked toml for crates.io crate fast-btree 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fast-btree 0.1.0 on toolchain 3154cc1a3e6424e44f438a95007d043ed5ceaaf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 44 packages to highest compatible versions
[INFO] [stderr]       Adding env_logger v0.10.2 (available: v0.11.11)
[INFO] [stderr]       Adding rand v0.8.8 (available: v0.10.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0bf49873705a0d80ea3a222793405b3080c551d1238b7a22e9693b56a2088c4e
[INFO] running `Command { std: "docker" "start" "0bf49873705a0d80ea3a222793405b3080c551d1238b7a22e9693b56a2088c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bf49873705a0d80ea3a222793405b3080c551d1238b7a22e9693b56a2088c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0bf49873705a0d80ea3a222793405b3080c551d1238b7a22e9693b56a2088c4e" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bf49873705a0d80ea3a222793405b3080c551d1238b7a22e9693b56a2088c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0bf49873705a0d80ea3a222793405b3080c551d1238b7a22e9693b56a2088c4e" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling fsio v0.1.3
[INFO] [stderr]    Compiling nias v0.5.0
[INFO] [stderr]     Checking humantime v2.4.0
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking regex-automata v0.4.18
[INFO] [stderr]     Checking zerocopy v0.8.62
[INFO] [stderr]     Checking getopts v0.2.24
[INFO] [stderr]     Checking is-terminal v0.4.17
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking envmnt v0.8.4
[INFO] [stderr]     Checking ci_info v0.10.2
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]     Checking regex v1.13.1
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling bitmask-enum v2.2.5
[INFO] [stderr]    Compiling rusty-hook v0.11.2
[INFO] [stderr]     Checking fast-btree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `feature(generic_const_exprs)` is not supported with the next-generation trait solver
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `-Znext-solver=globally` is currently enabled by default for testing
[INFO] [stdout]   = note: reverted the setting to `-Znext-solver=coherence` for this crate
[INFO] [stdout]   = note: the currently stable trait solver will be used for this crate
[INFO] [stdout]   = note: see issues #160895 <https://github.com/rust-lang/rust/issues/160895> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/btree_base/btree.rs:41:23
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn value_comp(&self) -> ValueCompare<T> {
[INFO] [stdout]    |                       ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn value_comp(&self) -> ValueCompare<'_, T> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.8
[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (325) panicked at /rustc-dev/3154cc1a3e6424e44f438a95007d043ed5ceaaf6/compiler/rustc_infer/src/infer/mod.rs:1705:64:
[INFO] [stderr] internal error: entered unreachable code
[INFO] [stderr] stack backtrace:
[INFO] [stdout] warning: `feature(generic_const_exprs)` is not supported with the next-generation trait solver
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `-Znext-solver=globally` is currently enabled by default for testing
[INFO] [stdout]   = note: reverted the setting to `-Znext-solver=coherence` for this crate
[INFO] [stdout]   = note: the currently stable trait solver will be used for this crate
[INFO] [stdout]   = note: see issues #160895 <https://github.com/rust-lang/rust/issues/160895> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    0:     0x78e40effda86 - <<std[3164a59e47d3bde]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[934024a1e6126fb4]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x78e40f60b58f - core[934024a1e6126fb4]::fmt::write
[INFO] [stderr]    2:     0x78e40f01407c - <std[3164a59e47d3bde]::sys::stdio::unix::Stderr as core[934024a1e6126fb4]::io::write::Write>::write_fmt
[INFO] [stderr]    3:     0x78e40efced4a - std[3164a59e47d3bde]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x78e40eff12c3 - std[3164a59e47d3bde]::panicking::default_hook
[INFO] [stderr]    5:     0x78e40dd6d915 - std[3164a59e47d3bde]::panicking::update_hook::<alloc[b96ed41a801e996d]::boxed::Box<rustc_driver_impl[4d41c45c6d37fa8c]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    6:     0x78e40eff1762 - std[3164a59e47d3bde]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x78e40efcee34 - std[3164a59e47d3bde]::panicking::panic_handler::{closure#0}
[INFO] [stderr]    8:     0x78e40efc63a9 - std[3164a59e47d3bde]::sys::backtrace::__rust_end_short_backtrace::<std[3164a59e47d3bde]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]    9:     0x78e40efd09dd - __rustc[2e7b49d4226056d3]::rust_begin_unwind
[INFO] [stderr]   10:     0x78e40ba45a5c - core[934024a1e6126fb4]::panicking::panic_fmt
[INFO] [stderr]   11:     0x78e40c019492 - core[934024a1e6126fb4]::panicking::panic
[INFO] [stderr]   12:     0x78e40f97852e - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_const
[INFO] [stderr]   13:     0x78e40f947bb9 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_const_and_instantiate_projection_term
[INFO] [stderr]   14:     0x78e4104c2651 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_goal_no_fast_paths
[INFO] [stderr]   15:     0x78e4104b5dd7 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_goal
[INFO] [stderr]   16:     0x78e4104acb0f - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::normalize::<rustc_middle[9749cded0b0e17c3]::ty::Ty>::{closure#0}
[INFO] [stderr]   17:     0x78e4104ac5db - <rustc_next_trait_solver[b3acf562f09fbe6a]::normalize::NormalizationFolder<rustc_infer[378f9c2af57772fb]::infer::InferCtxt, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt, <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::normalize<rustc_middle[9749cded0b0e17c3]::ty::predicate::Predicate>::{closure#0}> as rustc_type_ir[aff52ad0bd0f686]::fold::FallibleTypeFolder<rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::try_fold_const::{closure#0}
[INFO] [stderr]   18:     0x78e4104ab932 - <rustc_next_trait_solver[b3acf562f09fbe6a]::normalize::NormalizationFolder<rustc_infer[378f9c2af57772fb]::infer::InferCtxt, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt, <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::normalize<rustc_middle[9749cded0b0e17c3]::ty::predicate::Predicate>::{closure#0}> as rustc_type_ir[aff52ad0bd0f686]::fold::FallibleTypeFolder<rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::try_fold_ty::{closure#0}
[INFO] [stderr]   19:     0x78e4104aa00f - <&rustc_middle[9749cded0b0e17c3]::ty::list::RawList<(), rustc_middle[9749cded0b0e17c3]::ty::generic_args::GenericArg> as rustc_type_ir[aff52ad0bd0f686]::fold::TypeFoldable<rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::try_fold_with::<rustc_next_trait_solver[b3acf562f09fbe6a]::normalize::NormalizationFolder<rustc_infer[378f9c2af57772fb]::infer::InferCtxt, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt, <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::normalize<rustc_middle[9749cded0b0e17c3]::ty::predicate::Predicate>::{closure#0}>>
[INFO] [stderr]   20:     0x78e410d18a49 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::add_goals::<alloc[b96ed41a801e996d]::vec::Vec<rustc_type_ir[aff52ad0bd0f686]::solve::Goal<rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt, rustc_middle[9749cded0b0e17c3]::ty::predicate::Predicate>>>
[INFO] [stderr]   21:     0x78e4104d4dcb - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_goal_no_fast_paths
[INFO] [stderr]   22:     0x78e40f60ddf8 - <rustc_trait_selection[579280d4a5e4d181]::traits::engine::FulfillmentEngine<rustc_trait_selection[579280d4a5e4d181]::traits::FulfillmentError> as rustc_infer[378f9c2af57772fb]::traits::engine::TraitEngine<rustc_trait_selection[579280d4a5e4d181]::traits::FulfillmentError>>::try_evaluate_obligations
[INFO] [stderr]   23:     0x78e40ffc68d2 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_path
[INFO] [stderr]   24:     0x78e40f8a83d6 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   25:     0x78e40f81a987 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_call
[INFO] [stderr]   26:     0x78e40f8a84c6 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   27:     0x78e40f81ce58 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_call
[INFO] [stderr]   28:     0x78e40f8a84c6 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   29:     0x78e40f893a60 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_decl
[INFO] [stderr]   30:     0x78e40f89bb7e - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_block
[INFO] [stderr]   31:     0x78e40f8a8dc9 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   32:     0x78e40f873716 - rustc_hir_typeck[52f5caf1595d1c05]::check::check_fn
[INFO] [stderr]   33:     0x78e410a45da8 - rustc_hir_typeck[52f5caf1595d1c05]::typeck_with_inspect::{closure#0}
[INFO] [stderr]   34:     0x78e410a441f0 - rustc_query_impl[d183d205595bb26e]::query_vtables::typeck_root::invoke_provider_fn::__rust_begin_short_backtrace
[INFO] [stderr]   35:     0x78e40fba1fd3 - rustc_query_impl[d183d205595bb26e]::execution::try_execute_query::<rustc_data_structures[beb512ccbba93d65]::vec_cache::VecCache<rustc_span[86848bd09168975a]::def_id::LocalDefId, rustc_middle[9749cded0b0e17c3]::query::erase::ErasedData<[u8; 8usize]>, rustc_middle[9749cded0b0e17c3]::dep_graph::graph::DepNodeIndex>, false>
[INFO] [stderr]   36:     0x78e40fba1c27 - rustc_query_impl[d183d205595bb26e]::query_vtables::typeck_root::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   37:     0x78e40fd16634 - <rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>::par_hir_body_owners::<rustc_hir_analysis[13793032b16b77dc]::check_crate::{closure#1}>::{closure#0}
[INFO] [stderr]   38:     0x78e40fd15ce5 - rustc_hir_analysis[13793032b16b77dc]::check_crate
[INFO] [stderr]   39:     0x78e40fb9e8b9 - rustc_interface[7316318c9ebc3ad]::passes::analysis
[INFO] [stderr]   40:     0x78e41081b847 - rustc_query_impl[d183d205595bb26e]::execution::try_execute_query::<rustc_middle[9749cded0b0e17c3]::query::caches::SingleCache<rustc_middle[9749cded0b0e17c3]::query::erase::ErasedData<[u8; 0usize]>>, false>
[INFO] [stderr]   41:     0x78e41081b62b - rustc_query_impl[d183d205595bb26e]::query_vtables::analysis::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   42:     0x78e4108e1490 - rustc_interface[7316318c9ebc3ad]::interface::run_compiler::<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}
[INFO] [stderr]   43:     0x78e410911782 - std[3164a59e47d3bde]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_with_globals<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_pool_with_globals<rustc_interface[7316318c9ebc3ad]::interface::run_compiler<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   44:     0x78e41091152d - <std[3164a59e47d3bde]::thread::lifecycle::spawn_unchecked<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_with_globals<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_pool_with_globals<rustc_interface[7316318c9ebc3ad]::interface::run_compiler<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[934024a1e6126fb4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   45:     0x78e41090fa5b - <std[3164a59e47d3bde]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   46:     0x78e409a51dfa - <unknown>
[INFO] [stderr]   47:     0x78e409ae53d4 - clone
[INFO] [stderr]   48:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] error: the compiler unexpectedly panicked. This is a bug
[INFO] [stderr] 
[INFO] [stderr] 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
[INFO] [stderr] 
[INFO] [stderr] note: please make sure that you have updated to the latest nightly
[INFO] [stderr] 
[INFO] [stderr] warning: the ICE couldn't be written to `/opt/rustwide/workdir/rustc-ice-2026-10-11T08_39_57-322.txt`: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.101.0-nightly (3154cc1a3 2026-10-09) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2
[INFO] [stderr] 
[INFO] [stderr] note: some of the compiler flags provided by cargo are hidden
[INFO] [stderr] 
[INFO] [stderr] query stack during panic:
[INFO] [stderr] #0 [typeck_root] type-checking `btree_map_works`
[INFO] [stderr] #1 [analysis] running analysis passes on crate `btree_map`
[INFO] [stderr] end of query stack
[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (325) panicked at /rustc-dev/3154cc1a3e6424e44f438a95007d043ed5ceaaf6/compiler/rustc_infer/src/infer/mod.rs:1705:64:
[INFO] [stderr] internal error: entered unreachable code
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x78e40effda86 - <<std[3164a59e47d3bde]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[934024a1e6126fb4]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x78e40f60b58f - core[934024a1e6126fb4]::fmt::write
[INFO] [stderr]    2:     0x78e40f01407c - <std[3164a59e47d3bde]::sys::stdio::unix::Stderr as core[934024a1e6126fb4]::io::write::Write>::write_fmt
[INFO] [stderr]    3:     0x78e40efced4a - std[3164a59e47d3bde]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x78e40eff12c3 - std[3164a59e47d3bde]::panicking::default_hook
[INFO] [stderr]    5:     0x78e40dd6d915 - std[3164a59e47d3bde]::panicking::update_hook::<alloc[b96ed41a801e996d]::boxed::Box<rustc_driver_impl[4d41c45c6d37fa8c]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    6:     0x78e40eff1762 - std[3164a59e47d3bde]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x78e40efcee34 - std[3164a59e47d3bde]::panicking::panic_handler::{closure#0}
[INFO] [stderr]    8:     0x78e40efc63a9 - std[3164a59e47d3bde]::sys::backtrace::__rust_end_short_backtrace::<std[3164a59e47d3bde]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]    9:     0x78e40efd09dd - __rustc[2e7b49d4226056d3]::rust_begin_unwind
[INFO] [stderr]   10:     0x78e40ba45a5c - core[934024a1e6126fb4]::panicking::panic_fmt
[INFO] [stderr]   11:     0x78e40c019492 - core[934024a1e6126fb4]::panicking::panic
[INFO] [stderr]   12:     0x78e40f97852e - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_const
[INFO] [stderr]   13:     0x78e40f947bb9 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_const_and_instantiate_projection_term
[INFO] [stderr]   14:     0x78e4104c2651 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_goal_no_fast_paths
[INFO] [stderr]   15:     0x78e4104b5dd7 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_goal
[INFO] [stderr]   16:     0x78e4104acb0f - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::normalize::<rustc_middle[9749cded0b0e17c3]::ty::Ty>::{closure#0}
[INFO] [stderr]   17:     0x78e4104ac5db - <rustc_next_trait_solver[b3acf562f09fbe6a]::normalize::NormalizationFolder<rustc_infer[378f9c2af57772fb]::infer::InferCtxt, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt, <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::normalize<rustc_middle[9749cded0b0e17c3]::ty::predicate::Predicate>::{closure#0}> as rustc_type_ir[aff52ad0bd0f686]::fold::FallibleTypeFolder<rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::try_fold_const::{closure#0}
[INFO] [stderr]   18:     0x78e4104ab932 - <rustc_next_trait_solver[b3acf562f09fbe6a]::normalize::NormalizationFolder<rustc_infer[378f9c2af57772fb]::infer::InferCtxt, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt, <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::normalize<rustc_middle[9749cded0b0e17c3]::ty::predicate::Predicate>::{closure#0}> as rustc_type_ir[aff52ad0bd0f686]::fold::FallibleTypeFolder<rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::try_fold_ty::{closure#0}
[INFO] [stderr]   19:     0x78e4104aa00f - <&rustc_middle[9749cded0b0e17c3]::ty::list::RawList<(), rustc_middle[9749cded0b0e17c3]::ty::generic_args::GenericArg> as rustc_type_ir[aff52ad0bd0f686]::fold::TypeFoldable<rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::try_fold_with::<rustc_next_trait_solver[b3acf562f09fbe6a]::normalize::NormalizationFolder<rustc_infer[378f9c2af57772fb]::infer::InferCtxt, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt, <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::normalize<rustc_middle[9749cded0b0e17c3]::ty::predicate::Predicate>::{closure#0}>>
[INFO] [stderr]   20:     0x78e410d18a49 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::add_goals::<alloc[b96ed41a801e996d]::vec::Vec<rustc_type_ir[aff52ad0bd0f686]::solve::Goal<rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt, rustc_middle[9749cded0b0e17c3]::ty::predicate::Predicate>>>
[INFO] [stderr]   21:     0x78e4104d4dcb - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_goal_no_fast_paths
[INFO] [stderr]   22:     0x78e40f60ddf8 - <rustc_trait_selection[579280d4a5e4d181]::traits::engine::FulfillmentEngine<rustc_trait_selection[579280d4a5e4d181]::traits::FulfillmentError> as rustc_infer[378f9c2af57772fb]::traits::engine::TraitEngine<rustc_trait_selection[579280d4a5e4d181]::traits::FulfillmentError>>::try_evaluate_obligations
[INFO] [stderr]   23:     0x78e40ffc68d2 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_path
[INFO] [stderr]   24:     0x78e40f8a83d6 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   25:     0x78e40f81a987 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_call
[INFO] [stderr]   26:     0x78e40f8a84c6 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   27:     0x78e40f81ce58 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_call
[INFO] [stderr]   28:     0x78e40f8a84c6 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   29:     0x78e40f893a60 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_decl
[INFO] [stderr]   30:     0x78e40f89bb7e - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_block
[INFO] [stderr]   31:     0x78e40f8a8dc9 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   32:     0x78e40f873716 - rustc_hir_typeck[52f5caf1595d1c05]::check::check_fn
[INFO] [stderr]   33:     0x78e410a45da8 - rustc_hir_typeck[52f5caf1595d1c05]::typeck_with_inspect::{closure#0}
[INFO] [stderr]   34:     0x78e410a441f0 - rustc_query_impl[d183d205595bb26e]::query_vtables::typeck_root::invoke_provider_fn::__rust_begin_short_backtrace
[INFO] [stderr]   35:     0x78e40fba1fd3 - rustc_query_impl[d183d205595bb26e]::execution::try_execute_query::<rustc_data_structures[beb512ccbba93d65]::vec_cache::VecCache<rustc_span[86848bd09168975a]::def_id::LocalDefId, rustc_middle[9749cded0b0e17c3]::query::erase::ErasedData<[u8; 8usize]>, rustc_middle[9749cded0b0e17c3]::dep_graph::graph::DepNodeIndex>, false>
[INFO] [stderr]   36:     0x78e40fba1c27 - rustc_query_impl[d183d205595bb26e]::query_vtables::typeck_root::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   37:     0x78e40fd16634 - <rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>::par_hir_body_owners::<rustc_hir_analysis[13793032b16b77dc]::check_crate::{closure#1}>::{closure#0}
[INFO] [stderr]   38:     0x78e40fd15ce5 - rustc_hir_analysis[13793032b16b77dc]::check_crate
[INFO] [stderr]   39:     0x78e40fb9e8b9 - rustc_interface[7316318c9ebc3ad]::passes::analysis
[INFO] [stderr]   40:     0x78e41081b847 - rustc_query_impl[d183d205595bb26e]::execution::try_execute_query::<rustc_middle[9749cded0b0e17c3]::query::caches::SingleCache<rustc_middle[9749cded0b0e17c3]::query::erase::ErasedData<[u8; 0usize]>>, false>
[INFO] [stderr]   41:     0x78e41081b62b - rustc_query_impl[d183d205595bb26e]::query_vtables::analysis::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   42:     0x78e4108e1490 - rustc_interface[7316318c9ebc3ad]::interface::run_compiler::<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}
[INFO] [stderr]   43:     0x78e410911782 - std[3164a59e47d3bde]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_with_globals<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_pool_with_globals<rustc_interface[7316318c9ebc3ad]::interface::run_compiler<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   44:     0x78e41091152d - <std[3164a59e47d3bde]::thread::lifecycle::spawn_unchecked<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_with_globals<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_pool_with_globals<rustc_interface[7316318c9ebc3ad]::interface::run_compiler<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[934024a1e6126fb4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   45:     0x78e41090fa5b - <std[3164a59e47d3bde]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   46:     0x78e409a51dfa - <unknown>
[INFO] [stderr]   47:     0x78e409ae53d4 - clone
[INFO] [stderr]   48:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] error: the compiler unexpectedly panicked. This is a bug
[INFO] [stderr] 
[INFO] [stderr] 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
[INFO] [stderr] 
[INFO] [stderr] note: please make sure that you have updated to the latest nightly
[INFO] [stderr] 
[INFO] [stderr] warning: the ICE couldn't be written to `/opt/rustwide/workdir/rustc-ice-2026-10-11T08_39_57-322.txt`: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.101.0-nightly (3154cc1a3 2026-10-09) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2
[INFO] [stderr] 
[INFO] [stderr] note: some of the compiler flags provided by cargo are hidden
[INFO] [stderr] 
[INFO] [stderr] query stack during panic:
[INFO] [stderr] #0 [typeck_root] type-checking `works_on_pointer_types`
[INFO] [stderr] #1 [analysis] running analysis passes on crate `btree_map`
[INFO] [stderr] end of query stack
[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (325) panicked at /rustc-dev/3154cc1a3e6424e44f438a95007d043ed5ceaaf6/compiler/rustc_infer/src/infer/mod.rs:1705:64:
[INFO] [stderr] internal error: entered unreachable code
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x78e40effda86 - <<std[3164a59e47d3bde]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[934024a1e6126fb4]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x78e40f60b58f - core[934024a1e6126fb4]::fmt::write
[INFO] [stderr]    2:     0x78e40f01407c - <std[3164a59e47d3bde]::sys::stdio::unix::Stderr as core[934024a1e6126fb4]::io::write::Write>::write_fmt
[INFO] [stderr]    3:     0x78e40efced4a - std[3164a59e47d3bde]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x78e40eff12c3 - std[3164a59e47d3bde]::panicking::default_hook
[INFO] [stderr]    5:     0x78e40dd6d915 - std[3164a59e47d3bde]::panicking::update_hook::<alloc[b96ed41a801e996d]::boxed::Box<rustc_driver_impl[4d41c45c6d37fa8c]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    6:     0x78e40eff1762 - std[3164a59e47d3bde]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x78e40efcee34 - std[3164a59e47d3bde]::panicking::panic_handler::{closure#0}
[INFO] [stderr]    8:     0x78e40efc63a9 - std[3164a59e47d3bde]::sys::backtrace::__rust_end_short_backtrace::<std[3164a59e47d3bde]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]    9:     0x78e40efd09dd - __rustc[2e7b49d4226056d3]::rust_begin_unwind
[INFO] [stderr]   10:     0x78e40ba45a5c - core[934024a1e6126fb4]::panicking::panic_fmt
[INFO] [stderr]   11:     0x78e40c019492 - core[934024a1e6126fb4]::panicking::panic
[INFO] [stderr]   12:     0x78e40f97852e - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_const
[INFO] [stderr]   13:     0x78e40f947bb9 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_const_and_instantiate_projection_term
[INFO] [stderr]   14:     0x78e4104c2651 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_goal_no_fast_paths
[INFO] [stderr]   15:     0x78e4104b5dd7 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_goal
[INFO] [stderr]   16:     0x78e4104acb0f - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::normalize::<rustc_middle[9749cded0b0e17c3]::ty::Ty>::{closure#0}
[INFO] [stderr]   17:     0x78e4104ac5db - <rustc_next_trait_solver[b3acf562f09fbe6a]::normalize::NormalizationFolder<rustc_infer[378f9c2af57772fb]::infer::InferCtxt, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt, <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::normalize<rustc_middle[9749cded0b0e17c3]::ty::predicate::Predicate>::{closure#0}> as rustc_type_ir[aff52ad0bd0f686]::fold::FallibleTypeFolder<rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::try_fold_const::{closure#0}
[INFO] [stderr]   18:     0x78e4104ab932 - <rustc_next_trait_solver[b3acf562f09fbe6a]::normalize::NormalizationFolder<rustc_infer[378f9c2af57772fb]::infer::InferCtxt, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt, <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::normalize<rustc_middle[9749cded0b0e17c3]::ty::predicate::Predicate>::{closure#0}> as rustc_type_ir[aff52ad0bd0f686]::fold::FallibleTypeFolder<rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::try_fold_ty::{closure#0}
[INFO] [stderr]   19:     0x78e4104aa00f - <&rustc_middle[9749cded0b0e17c3]::ty::list::RawList<(), rustc_middle[9749cded0b0e17c3]::ty::generic_args::GenericArg> as rustc_type_ir[aff52ad0bd0f686]::fold::TypeFoldable<rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::try_fold_with::<rustc_next_trait_solver[b3acf562f09fbe6a]::normalize::NormalizationFolder<rustc_infer[378f9c2af57772fb]::infer::InferCtxt, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt, <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::normalize<rustc_middle[9749cded0b0e17c3]::ty::predicate::Predicate>::{closure#0}>>
[INFO] [stderr]   20:     0x78e410d18a49 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::add_goals::<alloc[b96ed41a801e996d]::vec::Vec<rustc_type_ir[aff52ad0bd0f686]::solve::Goal<rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt, rustc_middle[9749cded0b0e17c3]::ty::predicate::Predicate>>>
[INFO] [stderr]   21:     0x78e4104d4dcb - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_goal_no_fast_paths
[INFO] [stderr]   22:     0x78e40f60ddf8 - <rustc_trait_selection[579280d4a5e4d181]::traits::engine::FulfillmentEngine<rustc_trait_selection[579280d4a5e4d181]::traits::FulfillmentError> as rustc_infer[378f9c2af57772fb]::traits::engine::TraitEngine<rustc_trait_selection[579280d4a5e4d181]::traits::FulfillmentError>>::try_evaluate_obligations
[INFO] [stderr]   23:     0x78e40ffc68d2 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_path
[INFO] [stderr]   24:     0x78e40f8a83d6 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   25:     0x78e40f81a987 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_call
[INFO] [stderr]   26:     0x78e40f8a84c6 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   27:     0x78e40f81ce58 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_call
[INFO] [stderr]   28:     0x78e40f8a84c6 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   29:     0x78e40f893a60 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_decl
[INFO] [stderr]   30:     0x78e40f89bb7e - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_block
[INFO] [stderr]   31:     0x78e40f8a8dc9 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   32:     0x78e40f873716 - rustc_hir_typeck[52f5caf1595d1c05]::check::check_fn
[INFO] [stderr]   33:     0x78e410a45da8 - rustc_hir_typeck[52f5caf1595d1c05]::typeck_with_inspect::{closure#0}
[INFO] [stderr]   34:     0x78e410a441f0 - rustc_query_impl[d183d205595bb26e]::query_vtables::typeck_root::invoke_provider_fn::__rust_begin_short_backtrace
[INFO] [stderr]   35:     0x78e40fba1fd3 - rustc_query_impl[d183d205595bb26e]::execution::try_execute_query::<rustc_data_structures[beb512ccbba93d65]::vec_cache::VecCache<rustc_span[86848bd09168975a]::def_id::LocalDefId, rustc_middle[9749cded0b0e17c3]::query::erase::ErasedData<[u8; 8usize]>, rustc_middle[9749cded0b0e17c3]::dep_graph::graph::DepNodeIndex>, false>
[INFO] [stderr]   36:     0x78e40fba1c27 - rustc_query_impl[d183d205595bb26e]::query_vtables::typeck_root::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   37:     0x78e40fd16634 - <rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>::par_hir_body_owners::<rustc_hir_analysis[13793032b16b77dc]::check_crate::{closure#1}>::{closure#0}
[INFO] [stderr]   38:     0x78e40fd15ce5 - rustc_hir_analysis[13793032b16b77dc]::check_crate
[INFO] [stderr]   39:     0x78e40fb9e8b9 - rustc_interface[7316318c9ebc3ad]::passes::analysis
[INFO] [stderr]   40:     0x78e41081b847 - rustc_query_impl[d183d205595bb26e]::execution::try_execute_query::<rustc_middle[9749cded0b0e17c3]::query::caches::SingleCache<rustc_middle[9749cded0b0e17c3]::query::erase::ErasedData<[u8; 0usize]>>, false>
[INFO] [stderr]   41:     0x78e41081b62b - rustc_query_impl[d183d205595bb26e]::query_vtables::analysis::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   42:     0x78e4108e1490 - rustc_interface[7316318c9ebc3ad]::interface::run_compiler::<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}
[INFO] [stderr]   43:     0x78e410911782 - std[3164a59e47d3bde]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_with_globals<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_pool_with_globals<rustc_interface[7316318c9ebc3ad]::interface::run_compiler<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   44:     0x78e41091152d - <std[3164a59e47d3bde]::thread::lifecycle::spawn_unchecked<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_with_globals<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_pool_with_globals<rustc_interface[7316318c9ebc3ad]::interface::run_compiler<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[934024a1e6126fb4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   45:     0x78e41090fa5b - <std[3164a59e47d3bde]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   46:     0x78e409a51dfa - <unknown>
[INFO] [stderr]   47:     0x78e409ae53d4 - clone
[INFO] [stderr]   48:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] error: the compiler unexpectedly panicked. This is a bug
[INFO] [stderr] 
[INFO] [stderr] 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
[INFO] [stderr] 
[INFO] [stderr] note: please make sure that you have updated to the latest nightly
[INFO] [stderr] 
[INFO] [stderr] warning: the ICE couldn't be written to `/opt/rustwide/workdir/rustc-ice-2026-10-11T08_39_57-322.txt`: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.101.0-nightly (3154cc1a3 2026-10-09) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2
[INFO] [stderr] 
[INFO] [stderr] note: some of the compiler flags provided by cargo are hidden
[INFO] [stderr] 
[INFO] [stderr] query stack during panic:
[INFO] [stderr] #0 [typeck_root] type-checking `random_op_test`
[INFO] [stderr] #1 [analysis] running analysis passes on crate `btree_map`
[INFO] [stderr] end of query stack
[INFO] [stderr] error: could not compile `fast-btree` (test "btree_map")
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/3154cc1a3e6424e44f438a95007d043ed5ceaaf6/bin/rustc --crate-name btree_map --edition=2021 tests/btree_map.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat,unused-externs-silent --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=760ae70815166648 -C extra-filename=-8d3bb415150d3d60 --out-dir /opt/rustwide/target/debug/build/fast-btree/8d3bb415150d3d60/out -L dependency=/opt/rustwide/target/debug/build/aho-corasick/2ba404ec8a1565bb/out -L dependency=/opt/rustwide/target/debug/build/bitmask-enum/f0218d158e324ebb/out -L dependency=/opt/rustwide/target/debug/build/cfg-if/557927e41f083466/out -L dependency=/opt/rustwide/target/debug/build/ci_info/d8188951dc07edb5/out -L dependency=/opt/rustwide/target/debug/build/env_logger/c47af480bb81f0f0/out -L dependency=/opt/rustwide/target/debug/build/envmnt/3446e6ce3af52193/out -L dependency=/opt/rustwide/target/debug/build/fsio/89f2daf8ec3ff282/out -L dependency=/opt/rustwide/target/debug/build/getopts/964b3fd61e0fb1de/out -L dependency=/opt/rustwide/target/debug/build/getrandom/51cd05a710c63ddb/out -L dependency=/opt/rustwide/target/debug/build/hashbrown/873179c8801ab2f1/out -L dependency=/opt/rustwide/target/debug/build/humantime/5db2bea2a50fe56c/out -L dependency=/opt/rustwide/target/debug/build/indexmap/e93de44b236c6b08/out -L dependency=/opt/rustwide/target/debug/build/is-terminal/994ebe4dd3c87051/out -L dependency=/opt/rustwide/target/debug/build/libc/0e85430da93f689e/out -L dependency=/opt/rustwide/target/debug/build/log/be973647f62911e9/out -L dependency=/opt/rustwide/target/debug/build/memchr/1479ae024ac081f3/out -L dependency=/opt/rustwide/target/debug/build/nias/5e81d91c68768eeb/out -L dependency=/opt/rustwide/target/debug/build/ppv-lite86/46b723a0091dbd5a/out -L dependency=/opt/rustwide/target/debug/build/rand_chacha/65415d2317c8ac7a/out -L dependency=/opt/rustwide/target/debug/build/rand_core/cf4e8dbbdce0e6ab/out -L dependency=/opt/rustwide/target/debug/build/regex-automata/92155d3185287d63/out -L dependency=/opt/rustwide/target/debug/build/regex-syntax/0b8b8323288fc4b3/out -L dependency=/opt/rustwide/target/debug/build/regex/e404231a07389c3b/out -L dependency=/opt/rustwide/target/debug/build/serde/0b4647885d1a9038/out -L dependency=/opt/rustwide/target/debug/build/serde_core/f93df072facdd6a4/out -L dependency=/opt/rustwide/target/debug/build/termcolor/3163ee63a16b7335/out -L dependency=/opt/rustwide/target/debug/build/toml/8fcdacb2b5ce945b/out -L dependency=/opt/rustwide/target/debug/build/unicode-width/831b79c958a0d7a0/out -L dependency=/opt/rustwide/target/debug/build/zerocopy/f70f474f166570bc/out --extern bitmask_enum=/opt/rustwide/target/debug/build/bitmask-enum/f0218d158e324ebb/out/libbitmask_enum-f0218d158e324ebb.so --extern env_logger=/opt/rustwide/target/debug/build/env_logger/c47af480bb81f0f0/out/libenv_logger-c47af480bb81f0f0.rmeta --extern fast_btree=/opt/rustwide/target/debug/build/fast-btree/b3b9ed2e41991535/out/libfast_btree-b3b9ed2e41991535.rmeta --extern log=/opt/rustwide/target/debug/build/log/be973647f62911e9/out/liblog-be973647f62911e9.rmeta --extern rand=/opt/rustwide/target/debug/build/rand/194907a256c29dd0/out/librand-194907a256c29dd0.rmeta --extern rusty_hook=/opt/rustwide/target/debug/build/rusty-hook/932ee0e7ca88c2d7/out/librusty_hook-932ee0e7ca88c2d7.rmeta --cap-lints=forbid --force-warn=unused_crate_dependencies` (exit status: 101)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/btree_base/btree.rs:41:23
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn value_comp(&self) -> ValueCompare<T> {
[INFO] [stdout]    |                       ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn value_comp(&self) -> ValueCompare<'_, T> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `env_logger`
[INFO] [stderr]  --> Cargo.toml:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | [dependencies.env_logger]
[INFO] [stderr]   |               ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `env_logger`
[INFO] [stderr] warning: `fast-btree` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "inspect" "0bf49873705a0d80ea3a222793405b3080c551d1238b7a22e9693b56a2088c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bf49873705a0d80ea3a222793405b3080c551d1238b7a22e9693b56a2088c4e", kill_on_drop: false }`
[INFO] [stdout] 0bf49873705a0d80ea3a222793405b3080c551d1238b7a22e9693b56a2088c4e
