[INFO] fetching crate option_trait 1.0.7... [INFO] building option_trait-1.0.7 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1 [INFO] extracting crate option_trait 1.0.7 into /workspace/builds/worker-6-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-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate option_trait 1.0.7 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a9aac5a68e4f49d9cbfc1f5fcb3d87dba38521a7bec0fc5c49f7c2b2052b7341 [INFO] running `Command { std: "docker" "start" "-a" "a9aac5a68e4f49d9cbfc1f5fcb3d87dba38521a7bec0fc5c49f7c2b2052b7341", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a9aac5a68e4f49d9cbfc1f5fcb3d87dba38521a7bec0fc5c49f7c2b2052b7341", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a9aac5a68e4f49d9cbfc1f5fcb3d87dba38521a7bec0fc5c49f7c2b2052b7341", kill_on_drop: false }` [INFO] [stdout] a9aac5a68e4f49d9cbfc1f5fcb3d87dba38521a7bec0fc5c49f7c2b2052b7341 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 20e958cff61d0831759693346dfd169a793b9146b7080e43350ed581bec4ba89 [INFO] running `Command { std: "docker" "start" "-a" "20e958cff61d0831759693346dfd169a793b9146b7080e43350ed581bec4ba89", kill_on_drop: false }` [INFO] [stderr] Compiling moddef v0.2.6 [INFO] [stderr] Compiling option_trait v1.0.7 (/opt/rustwide/workdir) [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] = help: add `#![feature(const_convert)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-09-05; consider upgrading it if it is out of date [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] = help: add `#![feature(const_convert)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-09-05; consider upgrading it if it is out of date [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] = help: add `#![feature(const_convert)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-09-05; consider upgrading it if it is out of date [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] = help: add `#![feature(const_convert)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-09-05; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stderr] thread 'rustc' (38) panicked at /rustc-dev/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/compiler/rustc_type_ir/src/binder.rs:776:9: [INFO] [stderr] type parameter `T/#1` (T/#1/1) out of range when instantiating, args=[?2t] [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x782efb4785a2 - ::fmt::h71e2dbb21440d8d7 [INFO] [stderr] 1: 0x782efbc0c8fc - core::fmt::write::ha34f2b5c70e30f63 [INFO] [stderr] 2: 0x782efb42ca41 - std::io::Write::write_fmt::h76264e5b71fd6d13 [INFO] [stderr] 3: 0x782efb43dfb2 - std::sys::backtrace::BacktraceLock::print::hb3aae3980c2c9bd5 [INFO] [stderr] 4: 0x782efb4441c7 - std::panicking::default_hook::{{closure}}::h1b7baa88a148d351 [INFO] [stderr] 5: 0x782efb443cd3 - std::panicking::default_hook::hbc5e86c06039547d [INFO] [stderr] 6: 0x782efa4f78c1 - std[12c422ba0e8f2ccd]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 7: 0x782efb4446cf - std::panicking::panic_with_hook::ha6d2c09d64f936dd [INFO] [stderr] 8: 0x782efb44447a - std::panicking::panic_handler::{{closure}}::h455c9d131d722636 [INFO] [stderr] 9: 0x782efb43e0f9 - std::sys::backtrace::__rust_end_short_backtrace::hd6ef955384ebd085 [INFO] [stderr] 10: 0x782efb41dd7d - __rustc[f338935add60802b]::rust_begin_unwind [INFO] [stderr] 11: 0x782ef8ce91f0 - core::panicking::panic_fmt::hb8d4a4959b79599f [INFO] [stderr] 12: 0x782efaac0e29 - >::type_param_out_of_range [INFO] [stderr] 13: 0x782efbc71327 - as rustc_type_ir[81185b9b8620be5c]::fold::TypeFolder>::fold_ty [INFO] [stderr] 14: 0x782efbc6c5e7 - <&rustc_middle[4f528906bdeedf54]::ty::list::RawList<(), rustc_middle[4f528906bdeedf54]::ty::generic_args::GenericArg> as rustc_type_ir[81185b9b8620be5c]::fold::TypeFoldable>::fold_with::> [INFO] [stderr] 15: 0x782efd49ad7d - as rustc_type_ir[81185b9b8620be5c]::fold::TypeFolder>::fold_const.cold [INFO] [stderr] 16: 0x782efbfd18e6 - rustc_trait_selection[f230be44c7bcb8e5]::traits::project::confirm_candidate [INFO] [stderr] 17: 0x782efbfd7869 - rustc_trait_selection[f230be44c7bcb8e5]::traits::project::opt_normalize_projection_term [INFO] [stderr] 18: 0x782efbfd5195 - ::commit_if_ok:: [INFO] [stderr] 19: 0x782efbd25f1e - ::evaluate_candidate [INFO] [stderr] 20: 0x782efbd2d607 - ::candidate_from_obligation::{closure#0}::{closure#0} [INFO] [stderr] 21: 0x782efbd6b42f - ::poly_select::{closure#0} [INFO] [stderr] 22: 0x782efc76df39 - ::process_obligation [INFO] [stderr] 23: 0x782efbc0488f - >::process_obligations:: [INFO] [stderr] 24: 0x782efc178c29 - as rustc_infer[7ff212840208b2bc]::traits::engine::TraitEngine>::select_all_or_error [INFO] [stderr] 25: 0x782efc19f88f - rustc_hir_analysis[b6c9407ed49d6c02]::check::wfcheck::check_trait [INFO] [stderr] 26: 0x782efc573c16 - rustc_hir_analysis[b6c9407ed49d6c02]::check::check::check_item_type [INFO] [stderr] 27: 0x782efc56ab1b - rustc_hir_analysis[b6c9407ed49d6c02]::check::wfcheck::check_well_formed [INFO] [stderr] 28: 0x782efc56aafb - rustc_query_impl[2353b90057dd5f84]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 29: 0x782efc56a3de - rustc_query_system[3ab3916a3edd70ab]::query::plumbing::try_execute_query::, rustc_query_system[3ab3916a3edd70ab]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[2353b90057dd5f84]::plumbing::QueryCtxt, false> [INFO] [stderr] 30: 0x782efc569e56 - rustc_query_impl[2353b90057dd5f84]::query_impl::check_well_formed::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 31: 0x782efc568fe2 - rustc_thread_pool[5261d82459708a3a]::join::join_context::::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#1}>::{closure#0}, rustc_thread_pool[5261d82459708a3a]::join::join::call<(), rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::par_slice::par_rec<&rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId, rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::try_par_for_each_in<&[rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId], rustc_span[be692f8603e923c0]::ErrorGuaranteed, ::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#2}>::{closure#0}, (), ()>::{closure#0} [INFO] [stderr] 32: 0x782efc569298 - rustc_thread_pool[5261d82459708a3a]::join::join_context::::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#1}>::{closure#0}, rustc_thread_pool[5261d82459708a3a]::join::join::call<(), rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::par_slice::par_rec<&rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId, rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::try_par_for_each_in<&[rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId], rustc_span[be692f8603e923c0]::ErrorGuaranteed, ::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#2}>::{closure#0}, (), ()>::{closure#0} [INFO] [stderr] 33: 0x782efc569298 - rustc_thread_pool[5261d82459708a3a]::join::join_context::::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#1}>::{closure#0}, rustc_thread_pool[5261d82459708a3a]::join::join::call<(), rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::par_slice::par_rec<&rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId, rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::try_par_for_each_in<&[rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId], rustc_span[be692f8603e923c0]::ErrorGuaranteed, ::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#2}>::{closure#0}, (), ()>::{closure#0} [INFO] [stderr] 34: 0x782efc56906b - rustc_thread_pool[5261d82459708a3a]::join::join_context::::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#1}>::{closure#0}, rustc_thread_pool[5261d82459708a3a]::join::join::call<(), rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::par_slice::par_rec<&rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId, rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::try_par_for_each_in<&[rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId], rustc_span[be692f8603e923c0]::ErrorGuaranteed, ::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#2}>::{closure#0}, (), ()>::{closure#0} [INFO] [stderr] 35: 0x782efcc00fe4 - rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::par_slice::par_rec::<&rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId, rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::try_par_for_each_in<&[rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId], rustc_span[be692f8603e923c0]::ErrorGuaranteed, ::par_items::{closure#0}>::{closure#0}::{closure#0}> [INFO] [stderr] 36: 0x782efcc00e85 - ::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#1}>::{closure#0}, rustc_thread_pool[5261d82459708a3a]::join::join::call<(), rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::par_slice::par_rec<&rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId, rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::try_par_for_each_in<&[rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId], rustc_span[be692f8603e923c0]::ErrorGuaranteed, ::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#2}>::{closure#0}, (), ()>::{closure#0}::{closure#0}, ()> as rustc_thread_pool[5261d82459708a3a]::job::Job>::execute [INFO] [stderr] 37: 0x782efcbff82a - ::wait_or_steal_until_cold [INFO] [stderr] 38: 0x782efcbfb6b5 - ::run [INFO] [stderr] 39: 0x782efcbfb52d - std[12c422ba0e8f2ccd]::sys::backtrace::__rust_begin_short_backtrace::<::build_scoped::{closure#1}, ()>::{closure#5}::{closure#0}::{closure#0}, rustc_interface[48cf4fa573a69c36]::util::run_in_thread_pool_with_globals::{closure#1}, ()>::{closure#5}::{closure#0}::{closure#1}, ()>::{closure#0}::{closure#0}::{closure#0}, ()> [INFO] [stderr] 40: 0x782efcbfa838 - <::spawn_unchecked_<::build_scoped::{closure#1}, ()>::{closure#5}::{closure#0}::{closure#0}, rustc_interface[48cf4fa573a69c36]::util::run_in_thread_pool_with_globals::{closure#1}, ()>::{closure#5}::{closure#0}::{closure#1}, ()>::{closure#0}::{closure#0}::{closure#0}, ()>::{closure#1} as core[18170c64b6a218e4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 41: 0x782efcbf7435 - std::sys::pal::unix::thread::Thread::new::thread_start::h74991452e4c34e7b [INFO] [stderr] 42: 0x782ef668aaa4 - [INFO] [stderr] 43: 0x782ef6717a34 - clone [INFO] [stderr] 44: 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] warning: the ICE couldn't be written to `/opt/rustwide/workdir/rustc-ice-2025-09-28T00_49_22-30.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.91.0-nightly (d79d87d4c 2025-09-05) 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' (42) panicked at /rustc-dev/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/compiler/rustc_type_ir/src/binder.rs:776:9: [INFO] [stderr] type parameter `T/#1` (T/#1/1) out of range when instantiating, args=[?2t] [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x782efb4785a2 - ::fmt::h71e2dbb21440d8d7 [INFO] [stderr] 1: 0x782efbc0c8fc - core::fmt::write::ha34f2b5c70e30f63 [INFO] [stderr] 2: 0x782efb42ca41 - std::io::Write::write_fmt::h76264e5b71fd6d13 [INFO] [stderr] 3: 0x782efb43dfb2 - std::sys::backtrace::BacktraceLock::print::hb3aae3980c2c9bd5 [INFO] [stderr] 4: 0x782efb4441c7 - std::panicking::default_hook::{{closure}}::h1b7baa88a148d351 [INFO] [stderr] 5: 0x782efb443cd3 - std::panicking::default_hook::hbc5e86c06039547d [INFO] [stderr] 6: 0x782efa4f78c1 - std[12c422ba0e8f2ccd]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 7: 0x782efb4446cf - std::panicking::panic_with_hook::ha6d2c09d64f936dd [INFO] [stderr] 8: 0x782efb44447a - std::panicking::panic_handler::{{closure}}::h455c9d131d722636 [INFO] [stderr] 9: 0x782efb43e0f9 - std::sys::backtrace::__rust_end_short_backtrace::hd6ef955384ebd085 [INFO] [stderr] 10: 0x782efb41dd7d - __rustc[f338935add60802b]::rust_begin_unwind [INFO] [stderr] 11: 0x782ef8ce91f0 - core::panicking::panic_fmt::hb8d4a4959b79599f [INFO] [stderr] 12: 0x782efaac0e29 - >::type_param_out_of_range [INFO] [stderr] 13: 0x782efbc71327 - as rustc_type_ir[81185b9b8620be5c]::fold::TypeFolder>::fold_ty [INFO] [stderr] 14: 0x782efbc6c5e7 - <&rustc_middle[4f528906bdeedf54]::ty::list::RawList<(), rustc_middle[4f528906bdeedf54]::ty::generic_args::GenericArg> as rustc_type_ir[81185b9b8620be5c]::fold::TypeFoldable>::fold_with::> [INFO] [stderr] 15: 0x782efd49ad7d - as rustc_type_ir[81185b9b8620be5c]::fold::TypeFolder>::fold_const.cold [INFO] [stderr] 16: 0x782efbfd18e6 - rustc_trait_selection[f230be44c7bcb8e5]::traits::project::confirm_candidate [INFO] [stderr] 17: 0x782efbfd7869 - rustc_trait_selection[f230be44c7bcb8e5]::traits::project::opt_normalize_projection_term [INFO] [stderr] 18: 0x782efbfd5195 - ::commit_if_ok:: [INFO] [stderr] 19: 0x782efbd25f1e - ::evaluate_candidate [INFO] [stderr] 20: 0x782efbd2d607 - ::candidate_from_obligation::{closure#0}::{closure#0} [INFO] [stderr] 21: 0x782efbd6b42f - ::poly_select::{closure#0} [INFO] [stderr] 22: 0x782efc76df39 - ::process_obligation [INFO] [stderr] 23: 0x782efbc0488f - >::process_obligations:: [INFO] [stderr] 24: 0x782efc178c29 - as rustc_infer[7ff212840208b2bc]::traits::engine::TraitEngine>::select_all_or_error [INFO] [stderr] 25: 0x782efc19f88f - rustc_hir_analysis[b6c9407ed49d6c02]::check::wfcheck::check_trait [INFO] [stderr] 26: 0x782efc573c16 - rustc_hir_analysis[b6c9407ed49d6c02]::check::check::check_item_type [INFO] [stderr] 27: 0x782efc56ab1b - rustc_hir_analysis[b6c9407ed49d6c02]::check::wfcheck::check_well_formed [INFO] [stderr] 28: 0x782efc56aafb - rustc_query_impl[2353b90057dd5f84]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 29: 0x782efc56a3de - rustc_query_system[3ab3916a3edd70ab]::query::plumbing::try_execute_query::, rustc_query_system[3ab3916a3edd70ab]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[2353b90057dd5f84]::plumbing::QueryCtxt, false> [INFO] [stderr] 30: 0x782efc569e56 - rustc_query_impl[2353b90057dd5f84]::query_impl::check_well_formed::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 31: 0x782efc568fe2 - rustc_thread_pool[5261d82459708a3a]::join::join_context::::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#1}>::{closure#0}, rustc_thread_pool[5261d82459708a3a]::join::join::call<(), rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::par_slice::par_rec<&rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId, rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::try_par_for_each_in<&[rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId], rustc_span[be692f8603e923c0]::ErrorGuaranteed, ::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#2}>::{closure#0}, (), ()>::{closure#0} [INFO] [stderr] 32: 0x782efc569298 - rustc_thread_pool[5261d82459708a3a]::join::join_context::::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#1}>::{closure#0}, rustc_thread_pool[5261d82459708a3a]::join::join::call<(), rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::par_slice::par_rec<&rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId, rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::try_par_for_each_in<&[rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId], rustc_span[be692f8603e923c0]::ErrorGuaranteed, ::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#2}>::{closure#0}, (), ()>::{closure#0} [INFO] [stderr] 33: 0x782efc56906b - rustc_thread_pool[5261d82459708a3a]::join::join_context::::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#1}>::{closure#0}, rustc_thread_pool[5261d82459708a3a]::join::join::call<(), rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::par_slice::par_rec<&rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId, rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::try_par_for_each_in<&[rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId], rustc_span[be692f8603e923c0]::ErrorGuaranteed, ::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#2}>::{closure#0}, (), ()>::{closure#0} [INFO] [stderr] 34: 0x782efcc00fe4 - rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::par_slice::par_rec::<&rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId, rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::try_par_for_each_in<&[rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId], rustc_span[be692f8603e923c0]::ErrorGuaranteed, ::par_items::{closure#0}>::{closure#0}::{closure#0}> [INFO] [stderr] 35: 0x782efcc00e85 - ::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#1}>::{closure#0}, rustc_thread_pool[5261d82459708a3a]::join::join::call<(), rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::par_slice::par_rec<&rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId, rustc_data_structures[410ae9866bc5f9ed]::sync::parallel::try_par_for_each_in<&[rustc_hir[3b9ed4a1ae9add9c]::hir::ItemId], rustc_span[be692f8603e923c0]::ErrorGuaranteed, ::par_items::{closure#0}>::{closure#0}::{closure#0}>::{closure#2}>::{closure#0}, (), ()>::{closure#0}::{closure#0}, ()> as rustc_thread_pool[5261d82459708a3a]::job::Job>::execute [INFO] [stderr] 36: 0x782efcbff82a - ::wait_or_steal_until_cold [INFO] [stderr] 37: 0x782efcbfb6b5 - ::run [INFO] [stderr] 38: 0x782efcbfb52d - std[12c422ba0e8f2ccd]::sys::backtrace::__rust_begin_short_backtrace::<::build_scoped::{closure#1}, ()>::{closure#5}::{closure#0}::{closure#0}, rustc_interface[48cf4fa573a69c36]::util::run_in_thread_pool_with_globals::{closure#1}, ()>::{closure#5}::{closure#0}::{closure#1}, ()>::{closure#0}::{closure#0}::{closure#0}, ()> [INFO] [stderr] 39: 0x782efcbfa838 - <::spawn_unchecked_<::build_scoped::{closure#1}, ()>::{closure#5}::{closure#0}::{closure#0}, rustc_interface[48cf4fa573a69c36]::util::run_in_thread_pool_with_globals::{closure#1}, ()>::{closure#5}::{closure#0}::{closure#1}, ()>::{closure#0}::{closure#0}::{closure#0}, ()>::{closure#1} as core[18170c64b6a218e4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 40: 0x782efcbf7435 - std::sys::pal::unix::thread::Thread::new::thread_start::h74991452e4c34e7b [INFO] [stderr] 41: 0x782ef668aaa4 - [INFO] [stderr] 42: 0x782ef6717a34 - clone [INFO] [stderr] 43: 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] warning: the ICE couldn't be written to `/opt/rustwide/workdir/rustc-ice-2025-09-28T00_49_22-30.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.91.0-nightly (d79d87d4c 2025-09-05) 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: E0635, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0635`. [INFO] [stdout] [INFO] [stderr] error: could not compile `option_trait` (lib) due to 5 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "20e958cff61d0831759693346dfd169a793b9146b7080e43350ed581bec4ba89", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "20e958cff61d0831759693346dfd169a793b9146b7080e43350ed581bec4ba89", kill_on_drop: false }` [INFO] [stdout] 20e958cff61d0831759693346dfd169a793b9146b7080e43350ed581bec4ba89