[INFO] fetching crate option_trait 1.0.7... [INFO] testing option_trait-1.0.7 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate option_trait 1.0.7 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate option_trait 1.0.7 [INFO] finished tweaking crates.io crate option_trait 1.0.7 [INFO] tweaked toml for crates.io crate option_trait 1.0.7 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate option_trait 1.0.7 on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate option_trait 1.0.7 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fd14e745498ef0931a74a13f472889c545cc33adc91873fe7686fcb234969714 [INFO] running `Command { std: "docker" "start" "-a" "fd14e745498ef0931a74a13f472889c545cc33adc91873fe7686fcb234969714", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fd14e745498ef0931a74a13f472889c545cc33adc91873fe7686fcb234969714", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fd14e745498ef0931a74a13f472889c545cc33adc91873fe7686fcb234969714", kill_on_drop: false }` [INFO] [stdout] fd14e745498ef0931a74a13f472889c545cc33adc91873fe7686fcb234969714 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4ab85367c92eb1a823c5c7cc9076956384b93e0fbb87f2a0cf45639b5aa50853 [INFO] running `Command { std: "docker" "start" "-a" "4ab85367c92eb1a823c5c7cc9076956384b93e0fbb87f2a0cf45639b5aa50853", kill_on_drop: false }` [INFO] [stderr] Compiling moddef v0.2.6 [INFO] [stderr] Compiling option_trait v1.0.7 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | #![feature(const_trait_impl)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | #![feature(auto_traits)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:6:1 [INFO] [stdout] | [INFO] [stdout] 6 | #![feature(negative_impls)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:7:1 [INFO] [stdout] | [INFO] [stdout] 7 | #![feature(try_trait_v2_yeet)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:8:1 [INFO] [stdout] | [INFO] [stdout] 8 | #![feature(unboxed_closures)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | #![feature(associated_type_defaults)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:10:1 [INFO] [stdout] | [INFO] [stdout] 10 | #![feature(associated_const_equality)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:11:1 [INFO] [stdout] | [INFO] [stdout] 11 | #![feature(structural_match)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | #![feature(core_intrinsics)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:13:1 [INFO] [stdout] | [INFO] [stdout] 13 | #![feature(const_eval_select)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:14:1 [INFO] [stdout] | [INFO] [stdout] 14 | #![feature(const_deref)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:15:1 [INFO] [stdout] | [INFO] [stdout] 15 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:16:1 [INFO] [stdout] | [INFO] [stdout] 16 | #![feature(generic_const_exprs)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | #![feature(generic_const_exprs)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #76560 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `const_deref` [INFO] [stdout] --> src/lib.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 14 | #![feature(const_deref)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_convert` [INFO] [stdout] --> src/opt_cell.rs:1636:15 [INFO] [stdout] | [INFO] [stdout] 1636 | impl const Deref for OptCell [INFO] [stdout] | ^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143773 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_convert` [INFO] [stdout] --> src/opt_cell.rs:1645:15 [INFO] [stdout] | [INFO] [stdout] 1645 | impl const DerefMut for OptCell [INFO] [stdout] | ^^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143773 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_convert` [INFO] [stdout] --> src/opt_cell.rs:1095:19 [INFO] [stdout] | [INFO] [stdout] 1095 | T: ~const Deref + 'a [INFO] [stdout] | ------ ^^^^^ [INFO] [stdout] | | [INFO] [stdout] | trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143773 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_convert` [INFO] [stdout] --> src/opt_cell.rs:1124:19 [INFO] [stdout] | [INFO] [stdout] 1124 | T: ~const DerefMut + 'a [INFO] [stdout] | ------ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143773 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stderr] thread 'rustc' (35) panicked at /rustc-dev/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/compiler/rustc_type_ir/src/binder.rs:781:9: [INFO] [stderr] type parameter `T/#1` (T/#1/1) out of range when instantiating, args=[?2t] [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7c4012634003 - ::fmt::h47627beda0767f4c [INFO] [stderr] 1: 0x7c4012e01b98 - core::fmt::write::h8a63064c67176fd8 [INFO] [stderr] 2: 0x7c401440f151 - std::io::Write::write_fmt::h5e9b646cef91150b [INFO] [stderr] 3: 0x7c40125f9b92 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb [INFO] [stderr] 4: 0x7c40125ffc59 - std::panicking::default_hook::{{closure}}::h23e0299d4738b766 [INFO] [stderr] 5: 0x7c40125ff783 - std::panicking::default_hook::hfeec6294e8751b62 [INFO] [stderr] 6: 0x7c40115f8851 - std[e20d0b87aa1ec278]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 7: 0x7c401260007f - std::panicking::panic_with_hook::hd57cd463d793ed79 [INFO] [stderr] 8: 0x7c40125ffe3a - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b [INFO] [stderr] 9: 0x7c40125f9cc9 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525 [INFO] [stderr] 10: 0x7c40125da6cd - __rustc[256c90bb7e548b45]::rust_begin_unwind [INFO] [stderr] 11: 0x7c400f575930 - core::panicking::panic_fmt::hf19c198748ef6a95 [INFO] [stderr] 12: 0x7c4011bfd6c9 - >::type_param_out_of_range [INFO] [stderr] 13: 0x7c4012e2a21a - as rustc_type_ir[98ea9ce52d901e95]::fold::TypeFolder>::fold_ty [INFO] [stderr] 14: 0x7c4012e25793 - <&rustc_middle[b9477e5798c1eccb]::ty::list::RawList<(), rustc_middle[b9477e5798c1eccb]::ty::generic_args::GenericArg> as rustc_type_ir[98ea9ce52d901e95]::fold::TypeFoldable>::fold_with::> [INFO] [stderr] 15: 0x7c4014c6142b - as rustc_type_ir[98ea9ce52d901e95]::fold::TypeFolder>::fold_const.cold [INFO] [stderr] 16: 0x7c4013029c33 - rustc_trait_selection[3f168c23bbc6169d]::traits::project::confirm_candidate [INFO] [stderr] 17: 0x7c401301de68 - rustc_trait_selection[3f168c23bbc6169d]::traits::project::opt_normalize_projection_term [INFO] [stderr] 18: 0x7c4013019ac4 - ::commit_if_ok:: [INFO] [stderr] 19: 0x7c40134a791a - ::evaluate_candidate::{closure#0} [INFO] [stderr] 20: 0x7c40134cbf77 - ::candidate_from_obligation::{closure#0}::{closure#0} [INFO] [stderr] 21: 0x7c4014016e62 - ::poly_select::{closure#0} [INFO] [stderr] 22: 0x7c401370210c - ::process_obligation [INFO] [stderr] 23: 0x7c4012e04e09 - >::process_obligations:: [INFO] [stderr] 24: 0x7c4013816e6a - as rustc_infer[3a0a1d9091c8d87f]::traits::engine::TraitEngine>::evaluate_obligations_error_on_ambiguity [INFO] [stderr] 25: 0x7c4013838c3e - rustc_hir_analysis[b20827826aaf7da1]::check::wfcheck::check_trait [INFO] [stderr] 26: 0x7c40136079de - rustc_hir_analysis[b20827826aaf7da1]::check::check::check_item_type [INFO] [stderr] 27: 0x7c40135ff8ba - rustc_hir_analysis[b20827826aaf7da1]::check::wfcheck::check_well_formed [INFO] [stderr] 28: 0x7c40135ff89b - rustc_query_impl[fd543820c9d38d57]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 29: 0x7c40135ff112 - rustc_query_system[8be8729fe181742b]::query::plumbing::try_execute_query::, rustc_query_system[8be8729fe181742b]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[fd543820c9d38d57]::plumbing::QueryCtxt, false> [INFO] [stderr] 30: 0x7c40135fec16 - rustc_query_impl[fd543820c9d38d57]::query_impl::check_well_formed::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 31: 0x7c40135fc2ef - rustc_hir_analysis[b20827826aaf7da1]::check::wfcheck::check_type_wf [INFO] [stderr] 32: 0x7c40135fc1e5 - rustc_query_impl[fd543820c9d38d57]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 33: 0x7c4013ec0c94 - rustc_query_system[8be8729fe181742b]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[fd543820c9d38d57]::plumbing::QueryCtxt, false> [INFO] [stderr] 34: 0x7c4013ec0a76 - rustc_query_impl[fd543820c9d38d57]::query_impl::check_type_wf::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 35: 0x7c40138e0e7a - rustc_hir_analysis[b20827826aaf7da1]::check_crate [INFO] [stderr] 36: 0x7c40138775b0 - rustc_interface[f7a0570088a2d46a]::passes::analysis [INFO] [stderr] 37: 0x7c4013877275 - rustc_query_impl[fd543820c9d38d57]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 38: 0x7c4013ec7626 - rustc_query_system[8be8729fe181742b]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[fd543820c9d38d57]::plumbing::QueryCtxt, false> [INFO] [stderr] 39: 0x7c4013ec727c - rustc_query_impl[fd543820c9d38d57]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 40: 0x7c4014164a83 - , rustc_driver_impl[fe70215fb2fa5da7]::run_compiler::{closure#0}::{closure#2}>::{closure#2} as core[5b293a957d0a6e5f]::ops::function::FnOnce<(&rustc_session[9e856844e28fdaf5]::session::Session, rustc_middle[b9477e5798c1eccb]::ty::context::CurrentGcx, alloc[d35db71d034d3387]::sync::Arc, &std[e20d0b87aa1ec278]::sync::once_lock::OnceLock, &rustc_data_structures[914bec91e700ac5b]::sync::worker_local::WorkerLocal, &rustc_data_structures[914bec91e700ac5b]::sync::worker_local::WorkerLocal, rustc_driver_impl[fe70215fb2fa5da7]::run_compiler::{closure#0}::{closure#2})>>::call_once::{shim:vtable#0} [INFO] [stderr] 41: 0x7c4013fb27a2 - rustc_interface[f7a0570088a2d46a]::interface::run_compiler::<(), rustc_driver_impl[fe70215fb2fa5da7]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 42: 0x7c4013ba2f80 - std[e20d0b87aa1ec278]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 43: 0x7c4013ba2c64 - <::spawn_unchecked_::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[5b293a957d0a6e5f]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 44: 0x7c4013ba15ef - std::sys::thread::unix::Thread::new::thread_start::hbaf586a9e50a98cd [INFO] [stderr] 45: 0x7c400d88aaa4 - [INFO] [stderr] 46: 0x7c400d917a64 - clone [INFO] [stderr] 47: 0x0 - [INFO] [stderr] [INFO] [stderr] error: the compiler unexpectedly panicked. this is a bug. [INFO] [stderr] [INFO] [stderr] note: using internal features is not supported and expected to cause internal compiler errors when used incorrectly [INFO] [stderr] [INFO] [stderr] note: rustc 1.92.0-beta.1 (3b4dd9bf1 2025-10-28) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: --crate-type lib -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 [check_well_formed] checking that `Same` is well-formed [INFO] [stderr] #1 [check_type_wf] checking that types are well-formed [INFO] [stderr] #2 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stderr] [INFO] [stderr] thread 'rustc' (35) panicked at /rustc-dev/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/compiler/rustc_type_ir/src/binder.rs:781:9: [INFO] [stderr] type parameter `T/#1` (T/#1/1) out of range when instantiating, args=[?2t] [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7c4012634003 - ::fmt::h47627beda0767f4c [INFO] [stderr] 1: 0x7c4012e01b98 - core::fmt::write::h8a63064c67176fd8 [INFO] [stderr] 2: 0x7c401440f151 - std::io::Write::write_fmt::h5e9b646cef91150b [INFO] [stderr] 3: 0x7c40125f9b92 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb [INFO] [stderr] 4: 0x7c40125ffc59 - std::panicking::default_hook::{{closure}}::h23e0299d4738b766 [INFO] [stderr] 5: 0x7c40125ff783 - std::panicking::default_hook::hfeec6294e8751b62 [INFO] [stderr] 6: 0x7c40115f8851 - std[e20d0b87aa1ec278]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 7: 0x7c401260007f - std::panicking::panic_with_hook::hd57cd463d793ed79 [INFO] [stderr] 8: 0x7c40125ffe3a - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b [INFO] [stderr] 9: 0x7c40125f9cc9 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525 [INFO] [stderr] 10: 0x7c40125da6cd - __rustc[256c90bb7e548b45]::rust_begin_unwind [INFO] [stderr] 11: 0x7c400f575930 - core::panicking::panic_fmt::hf19c198748ef6a95 [INFO] [stderr] 12: 0x7c4011bfd6c9 - >::type_param_out_of_range [INFO] [stderr] 13: 0x7c4012e2a21a - as rustc_type_ir[98ea9ce52d901e95]::fold::TypeFolder>::fold_ty [INFO] [stderr] 14: 0x7c4012e25793 - <&rustc_middle[b9477e5798c1eccb]::ty::list::RawList<(), rustc_middle[b9477e5798c1eccb]::ty::generic_args::GenericArg> as rustc_type_ir[98ea9ce52d901e95]::fold::TypeFoldable>::fold_with::> [INFO] [stderr] 15: 0x7c4014c6142b - as rustc_type_ir[98ea9ce52d901e95]::fold::TypeFolder>::fold_const.cold [INFO] [stderr] 16: 0x7c4013029c33 - rustc_trait_selection[3f168c23bbc6169d]::traits::project::confirm_candidate [INFO] [stderr] 17: 0x7c401301de68 - rustc_trait_selection[3f168c23bbc6169d]::traits::project::opt_normalize_projection_term [INFO] [stderr] 18: 0x7c4013019ac4 - ::commit_if_ok:: [INFO] [stderr] 19: 0x7c40134a791a - ::evaluate_candidate::{closure#0} [INFO] [stderr] 20: 0x7c40134cbf77 - ::candidate_from_obligation::{closure#0}::{closure#0} [INFO] [stderr] 21: 0x7c4014016e62 - ::poly_select::{closure#0} [INFO] [stderr] 22: 0x7c401370210c - ::process_obligation [INFO] [stderr] 23: 0x7c4012e04e09 - >::process_obligations:: [INFO] [stderr] 24: 0x7c4013816e6a - as rustc_infer[3a0a1d9091c8d87f]::traits::engine::TraitEngine>::evaluate_obligations_error_on_ambiguity [INFO] [stderr] 25: 0x7c4013838c3e - rustc_hir_analysis[b20827826aaf7da1]::check::wfcheck::check_trait [INFO] [stderr] 26: 0x7c40136079de - rustc_hir_analysis[b20827826aaf7da1]::check::check::check_item_type [INFO] [stderr] 27: 0x7c40135ff8ba - rustc_hir_analysis[b20827826aaf7da1]::check::wfcheck::check_well_formed [INFO] [stderr] 28: 0x7c40135ff89b - rustc_query_impl[fd543820c9d38d57]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 29: 0x7c40135ff112 - rustc_query_system[8be8729fe181742b]::query::plumbing::try_execute_query::, rustc_query_system[8be8729fe181742b]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[fd543820c9d38d57]::plumbing::QueryCtxt, false> [INFO] [stderr] 30: 0x7c40135fec16 - rustc_query_impl[fd543820c9d38d57]::query_impl::check_well_formed::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 31: 0x7c40135fc2ef - rustc_hir_analysis[b20827826aaf7da1]::check::wfcheck::check_type_wf [INFO] [stderr] 32: 0x7c40135fc1e5 - rustc_query_impl[fd543820c9d38d57]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 33: 0x7c4013ec0c94 - rustc_query_system[8be8729fe181742b]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[fd543820c9d38d57]::plumbing::QueryCtxt, false> [INFO] [stderr] 34: 0x7c4013ec0a76 - rustc_query_impl[fd543820c9d38d57]::query_impl::check_type_wf::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 35: 0x7c40138e0e7a - rustc_hir_analysis[b20827826aaf7da1]::check_crate [INFO] [stderr] 36: 0x7c40138775b0 - rustc_interface[f7a0570088a2d46a]::passes::analysis [INFO] [stderr] 37: 0x7c4013877275 - rustc_query_impl[fd543820c9d38d57]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 38: 0x7c4013ec7626 - rustc_query_system[8be8729fe181742b]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[fd543820c9d38d57]::plumbing::QueryCtxt, false> [INFO] [stderr] 39: 0x7c4013ec727c - rustc_query_impl[fd543820c9d38d57]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 40: 0x7c4014164a83 - , rustc_driver_impl[fe70215fb2fa5da7]::run_compiler::{closure#0}::{closure#2}>::{closure#2} as core[5b293a957d0a6e5f]::ops::function::FnOnce<(&rustc_session[9e856844e28fdaf5]::session::Session, rustc_middle[b9477e5798c1eccb]::ty::context::CurrentGcx, alloc[d35db71d034d3387]::sync::Arc, &std[e20d0b87aa1ec278]::sync::once_lock::OnceLock, &rustc_data_structures[914bec91e700ac5b]::sync::worker_local::WorkerLocal, &rustc_data_structures[914bec91e700ac5b]::sync::worker_local::WorkerLocal, rustc_driver_impl[fe70215fb2fa5da7]::run_compiler::{closure#0}::{closure#2})>>::call_once::{shim:vtable#0} [INFO] [stderr] 41: 0x7c4013fb27a2 - rustc_interface[f7a0570088a2d46a]::interface::run_compiler::<(), rustc_driver_impl[fe70215fb2fa5da7]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 42: 0x7c4013ba2f80 - std[e20d0b87aa1ec278]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 43: 0x7c4013ba2c64 - <::spawn_unchecked_::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[5b293a957d0a6e5f]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 44: 0x7c4013ba15ef - std::sys::thread::unix::Thread::new::thread_start::hbaf586a9e50a98cd [INFO] [stderr] 45: 0x7c400d88aaa4 - [INFO] [stderr] 46: 0x7c400d917a64 - clone [INFO] [stderr] 47: 0x0 - [INFO] [stderr] [INFO] [stderr] error: the compiler unexpectedly panicked. this is a bug. [INFO] [stderr] [INFO] [stderr] note: using internal features is not supported and expected to cause internal compiler errors when used incorrectly [INFO] [stderr] [INFO] [stderr] note: rustc 1.92.0-beta.1 (3b4dd9bf1 2025-10-28) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: --crate-type lib -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 [check_well_formed] checking that `private::Same` is well-formed [INFO] [stderr] #1 [check_type_wf] checking that types are well-formed [INFO] [stderr] #2 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stdout] Some errors have detailed explanations: E0554, E0635, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `option_trait` (lib) due to 18 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "4ab85367c92eb1a823c5c7cc9076956384b93e0fbb87f2a0cf45639b5aa50853", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4ab85367c92eb1a823c5c7cc9076956384b93e0fbb87f2a0cf45639b5aa50853", kill_on_drop: false }` [INFO] [stdout] 4ab85367c92eb1a823c5c7cc9076956384b93e0fbb87f2a0cf45639b5aa50853