[INFO] fetching crate varfish-server-worker 0.17.3...
[INFO] testing varfish-server-worker-0.17.3 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate varfish-server-worker 0.17.3 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate varfish-server-worker 0.17.3
[INFO] finished tweaking crates.io crate varfish-server-worker 0.17.3
[INFO] tweaked toml for crates.io crate varfish-server-worker 0.17.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate varfish-server-worker 0.17.3 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate varfish-server-worker 0.17.3 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09aa8edd72aca071b180a421f25d9b72c6e9e63886d649252dd48cbfe362864e
[INFO] running `Command { std: "docker" "start" "-a" "09aa8edd72aca071b180a421f25d9b72c6e9e63886d649252dd48cbfe362864e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09aa8edd72aca071b180a421f25d9b72c6e9e63886d649252dd48cbfe362864e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09aa8edd72aca071b180a421f25d9b72c6e9e63886d649252dd48cbfe362864e", kill_on_drop: false }`
[INFO] [stdout] 09aa8edd72aca071b180a421f25d9b72c6e9e63886d649252dd48cbfe362864e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdb85f221210acc6ce881fdb4abcee32023dcdd115221b54dcab49fc95c2d9a4
[INFO] running `Command { std: "docker" "start" "-a" "cdb85f221210acc6ce881fdb4abcee32023dcdd115221b54dcab49fc95c2d9a4", kill_on_drop: false }`
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[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (3783) panicked at /rustc-dev/dec9417b8611e34e787a3e4c37686b5131f9e5c5/compiler/rustc_infer/src/infer/relate/generalize.rs:294:44:
[INFO] [stderr] called `Result::unwrap_err()` on an `Ok` value: base::array_storage::ArrayStorage<base::matrix::Matrix<?20t, base::dimension::Const<?0c>, base::dimension::Const<1_usize>, ?21t>, ?0c, 1_usize>
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7c7ab059535b - <<std[e72de78501789eb0]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[6aaeda2c7ad07a48]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x7c7ab0c2f248 - core[6aaeda2c7ad07a48]::fmt::write
[INFO] [stderr]    2:     0x7c7ab05ac366 - <std[e72de78501789eb0]::sys::stdio::unix::Stderr as std[e72de78501789eb0]::io::Write>::write_fmt
[INFO] [stderr]    3:     0x7c7ab056b368 - std[e72de78501789eb0]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x7c7ab0588763 - std[e72de78501789eb0]::panicking::default_hook
[INFO] [stderr]    5:     0x7c7aaf58566c - std[e72de78501789eb0]::panicking::update_hook::<alloc[28d2dab30c1dc666]::boxed::Box<rustc_driver_impl[1568c1d64401f343]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    6:     0x7c7ab0588a42 - std[e72de78501789eb0]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x7c7ab056b428 - std[e72de78501789eb0]::panicking::panic_handler::{closure#0}
[INFO] [stderr]    8:     0x7c7ab0562159 - std[e72de78501789eb0]::sys::backtrace::__rust_end_short_backtrace::<std[e72de78501789eb0]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]    9:     0x7c7ab056ce8d - __rustc[78a4cf188af856fc]::rust_begin_unwind
[INFO] [stderr]   10:     0x7c7aad626f9c - core[6aaeda2c7ad07a48]::panicking::panic_fmt
[INFO] [stderr]   11:     0x7c7aacd795e2 - core[6aaeda2c7ad07a48]::result::unwrap_failed
[INFO] [stderr]   12:     0x7c7ab191af0a - <rustc_infer[50dfa9efe366b9f0]::infer::InferCtxt>::instantiate_ty_var::<rustc_type_ir[20f22f7553888b21]::relate::solver_relating::SolverRelating<rustc_infer[50dfa9efe366b9f0]::infer::InferCtxt, rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>
[INFO] [stderr]   13:     0x7c7ab191d009 - <rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg as rustc_type_ir[20f22f7553888b21]::relate::Relate<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>::relate::<rustc_type_ir[20f22f7553888b21]::relate::solver_relating::SolverRelating<rustc_infer[50dfa9efe366b9f0]::infer::InferCtxt, rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>
[INFO] [stderr]   14:     0x7c7ab191db6d - <core[6aaeda2c7ad07a48]::result::Result<rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg, rustc_type_ir[20f22f7553888b21]::error::TypeError<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>> as rustc_type_ir[20f22f7553888b21]::interner::CollectAndApply<rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg, &rustc_middle[ff930705cf6dddea]::ty::list::RawList<(), rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg>>>::collect_and_apply::<core[6aaeda2c7ad07a48]::iter::adapters::map::Map<core[6aaeda2c7ad07a48]::iter::adapters::zip::Zip<core[6aaeda2c7ad07a48]::iter::adapters::copied::Copied<core[6aaeda2c7ad07a48]::slice::iter::Iter<rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg>>, core[6aaeda2c7ad07a48]::iter::adapters::copied::Copied<core[6aaeda2c7ad07a48]::slice::iter::Iter<rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg>>>, rustc_type_ir[20f22f7553888b21]::relate::relate_args_invariantly<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt, rustc_type_ir[20f22f7553888b21]::relate::solver_relating::SolverRelating<rustc_infer[50dfa9efe366b9f0]::infer::InferCtxt, rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>::{closure#0}>, <rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>::mk_args_from_iter<core[6aaeda2c7ad07a48]::iter::adapters::map::Map<core[6aaeda2c7ad07a48]::iter::adapters::zip::Zip<core[6aaeda2c7ad07a48]::iter::adapters::copied::Copied<core[6aaeda2c7ad07a48]::slice::iter::Iter<rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg>>, core[6aaeda2c7ad07a48]::iter::adapters::copied::Copied<core[6aaeda2c7ad07a48]::slice::iter::Iter<rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg>>>, rustc_type_ir[20f22f7553888b21]::relate::relate_args_invariantly<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt, rustc_type_ir[20f22f7553888b21]::relate::solver_relating::SolverRelating<rustc_infer[50dfa9efe366b9f0]::infer::InferCtxt, rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>::{closure#0}>, core[6aaeda2c7ad07a48]::result::Result<rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg, rustc_type_ir[20f22f7553888b21]::error::TypeError<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>>::{closure#0}>
[INFO] [stderr]   15:     0x7c7ab191e2ce - rustc_type_ir[20f22f7553888b21]::relate::structurally_relate_tys::<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt, rustc_type_ir[20f22f7553888b21]::relate::solver_relating::SolverRelating<rustc_infer[50dfa9efe366b9f0]::infer::InferCtxt, rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>
[INFO] [stderr]   16:     0x7c7ab191b2cb - <rustc_type_ir[20f22f7553888b21]::relate::solver_relating::SolverRelating<rustc_infer[50dfa9efe366b9f0]::infer::InferCtxt, rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt> as rustc_type_ir[20f22f7553888b21]::relate::TypeRelation<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>::tys
[INFO] [stderr]   17:     0x7c7ab191ac7c - <rustc_infer[50dfa9efe366b9f0]::infer::InferCtxt>::instantiate_ty_var::<rustc_type_ir[20f22f7553888b21]::relate::solver_relating::SolverRelating<rustc_infer[50dfa9efe366b9f0]::infer::InferCtxt, rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>
[INFO] [stderr]   18:     0x7c7ab191b358 - <rustc_type_ir[20f22f7553888b21]::relate::solver_relating::SolverRelating<rustc_infer[50dfa9efe366b9f0]::infer::InferCtxt, rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt> as rustc_type_ir[20f22f7553888b21]::relate::TypeRelation<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>::tys
[INFO] [stderr]   19:     0x7c7ab191e5d3 - rustc_type_ir[20f22f7553888b21]::relate::structurally_relate_tys::<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt, rustc_type_ir[20f22f7553888b21]::relate::solver_relating::SolverRelating<rustc_infer[50dfa9efe366b9f0]::infer::InferCtxt, rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>
[INFO] [stderr]   20:     0x7c7ab191b2cb - <rustc_type_ir[20f22f7553888b21]::relate::solver_relating::SolverRelating<rustc_infer[50dfa9efe366b9f0]::infer::InferCtxt, rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt> as rustc_type_ir[20f22f7553888b21]::relate::TypeRelation<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>::tys
[INFO] [stderr]   21:     0x7c7ab191d877 - <core[6aaeda2c7ad07a48]::result::Result<rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg, rustc_type_ir[20f22f7553888b21]::error::TypeError<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>> as rustc_type_ir[20f22f7553888b21]::interner::CollectAndApply<rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg, &rustc_middle[ff930705cf6dddea]::ty::list::RawList<(), rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg>>>::collect_and_apply::<core[6aaeda2c7ad07a48]::iter::adapters::map::Map<core[6aaeda2c7ad07a48]::iter::adapters::zip::Zip<core[6aaeda2c7ad07a48]::iter::adapters::copied::Copied<core[6aaeda2c7ad07a48]::slice::iter::Iter<rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg>>, core[6aaeda2c7ad07a48]::iter::adapters::copied::Copied<core[6aaeda2c7ad07a48]::slice::iter::Iter<rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg>>>, rustc_type_ir[20f22f7553888b21]::relate::relate_args_invariantly<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt, rustc_type_ir[20f22f7553888b21]::relate::solver_relating::SolverRelating<rustc_infer[50dfa9efe366b9f0]::infer::InferCtxt, rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>::{closure#0}>, <rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>::mk_args_from_iter<core[6aaeda2c7ad07a48]::iter::adapters::map::Map<core[6aaeda2c7ad07a48]::iter::adapters::zip::Zip<core[6aaeda2c7ad07a48]::iter::adapters::copied::Copied<core[6aaeda2c7ad07a48]::slice::iter::Iter<rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg>>, core[6aaeda2c7ad07a48]::iter::adapters::copied::Copied<core[6aaeda2c7ad07a48]::slice::iter::Iter<rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg>>>, rustc_type_ir[20f22f7553888b21]::relate::relate_args_invariantly<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt, rustc_type_ir[20f22f7553888b21]::relate::solver_relating::SolverRelating<rustc_infer[50dfa9efe366b9f0]::infer::InferCtxt, rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>::{closure#0}>, core[6aaeda2c7ad07a48]::result::Result<rustc_middle[ff930705cf6dddea]::ty::generic_args::GenericArg, rustc_type_ir[20f22f7553888b21]::error::TypeError<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>>::{closure#0}>
[INFO] [stderr]   22:     0x7c7ab0c6d172 - <rustc_infer[50dfa9efe366b9f0]::infer::at::At>::eq_trace::<rustc_type_ir[20f22f7553888b21]::predicate::TraitRef<rustc_middle[ff930705cf6dddea]::ty::context::TyCtxt>>
[INFO] [stderr]   23:     0x7c7ab163b754 - rustc_trait_selection[8cb020d34d4ddd]::traits::coherence::overlap
[INFO] [stderr]   24:     0x7c7aacc64017 - <rustc_middle[ff930705cf6dddea]::traits::specialization_graph::Children as rustc_trait_selection[8cb020d34d4ddd]::traits::specialize::specialization_graph::ChildrenExt>::insert
[INFO] [stderr]   25:     0x7c7ab1ba85b5 - <rustc_middle[ff930705cf6dddea]::traits::specialization_graph::Graph as rustc_trait_selection[8cb020d34d4ddd]::traits::specialize::specialization_graph::GraphExt>::insert
[INFO] [stderr]   26:     0x7c7ab0c4b534 - rustc_trait_selection[8cb020d34d4ddd]::traits::specialize::specialization_graph_provider
[INFO] [stderr]   27:     0x7c7ab0c4f04d - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::<rustc_middle[ff930705cf6dddea]::query::caches::DefIdCache<rustc_middle[ff930705cf6dddea]::query::erase::ErasedData<[u8; 8usize]>>, false>
[INFO] [stderr]   28:     0x7c7ab0d695a4 - rustc_query_impl[187e90d83ba42732]::query_impl::specialization_graph_of::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   29:     0x7c7ab0d6ccc7 - rustc_hir_analysis[9443468e5116f6d9]::coherence::coherent_trait
[INFO] [stderr]   30:     0x7c7ab0d6c9df - rustc_query_impl[187e90d83ba42732]::query_impl::coherent_trait::invoke_provider_fn::__rust_begin_short_backtrace
[INFO] [stderr]   31:     0x7c7ab10931ec - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::<rustc_middle[ff930705cf6dddea]::query::caches::DefIdCache<rustc_middle[ff930705cf6dddea]::query::erase::ErasedData<[u8; 1usize]>>, false>
[INFO] [stderr]   32:     0x7c7ab1092340 - rustc_query_impl[187e90d83ba42732]::query_impl::coherent_trait::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   33:     0x7c7ab12a522e - rustc_hir_analysis[9443468e5116f6d9]::check::check::check_item_type
[INFO] [stderr]   34:     0x7c7ab12a36e6 - rustc_hir_analysis[9443468e5116f6d9]::check::wfcheck::check_well_formed
[INFO] [stderr]   35:     0x7c7ab12a36c7 - rustc_query_impl[187e90d83ba42732]::query_impl::check_well_formed::invoke_provider_fn::__rust_begin_short_backtrace
[INFO] [stderr]   36:     0x7c7ab12a2ce4 - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::<rustc_data_structures[574c4a6b738e4cf4]::vec_cache::VecCache<rustc_span[d41690adff726da]::def_id::LocalDefId, rustc_middle[ff930705cf6dddea]::query::erase::ErasedData<[u8; 1usize]>, rustc_middle[ff930705cf6dddea]::dep_graph::graph::DepNodeIndex>, false>
[INFO] [stderr]   37:     0x7c7ab12a2a7b - rustc_query_impl[187e90d83ba42732]::query_impl::check_well_formed::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   38:     0x7c7ab129f1f3 - rustc_hir_analysis[9443468e5116f6d9]::check::wfcheck::check_type_wf
[INFO] [stderr]   39:     0x7c7ab129f0ef - rustc_query_impl[187e90d83ba42732]::query_impl::check_type_wf::invoke_provider_fn::__rust_begin_short_backtrace
[INFO] [stderr]   40:     0x7c7ab1e54850 - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::<rustc_middle[ff930705cf6dddea]::query::caches::SingleCache<rustc_middle[ff930705cf6dddea]::query::erase::ErasedData<[u8; 1usize]>>, false>
[INFO] [stderr]   41:     0x7c7ab1e54629 - rustc_query_impl[187e90d83ba42732]::query_impl::check_type_wf::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   42:     0x7c7ab14e1f55 - rustc_hir_analysis[9443468e5116f6d9]::check_crate
[INFO] [stderr]   43:     0x7c7ab0ce46da - rustc_interface[8fb07a87386d2e99]::passes::analysis
[INFO] [stderr]   44:     0x7c7ab1e56fc9 - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::<rustc_middle[ff930705cf6dddea]::query::caches::SingleCache<rustc_middle[ff930705cf6dddea]::query::erase::ErasedData<[u8; 0usize]>>, false>
[INFO] [stderr]   45:     0x7c7ab1e56c35 - rustc_query_impl[187e90d83ba42732]::query_impl::analysis::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   46:     0x7c7ab1f01414 - rustc_interface[8fb07a87386d2e99]::interface::run_compiler::<(), rustc_driver_impl[1568c1d64401f343]::run_compiler::{closure#0}>::{closure#1}
[INFO] [stderr]   47:     0x7c7ab1e1e87e - std[e72de78501789eb0]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[8fb07a87386d2e99]::util::run_in_thread_with_globals<rustc_interface[8fb07a87386d2e99]::util::run_in_thread_pool_with_globals<rustc_interface[8fb07a87386d2e99]::interface::run_compiler<(), rustc_driver_impl[1568c1d64401f343]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   48:     0x7c7ab1e1f120 - <std[e72de78501789eb0]::thread::lifecycle::spawn_unchecked<rustc_interface[8fb07a87386d2e99]::util::run_in_thread_with_globals<rustc_interface[8fb07a87386d2e99]::util::run_in_thread_pool_with_globals<rustc_interface[8fb07a87386d2e99]::interface::run_compiler<(), rustc_driver_impl[1568c1d64401f343]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   49:     0x7c7ab1e1ffac - <std[e72de78501789eb0]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   50:     0x7c7aab88aaa4 - <unknown>
[INFO] [stderr]   51:     0x7c7aab917a64 - clone
[INFO] [stderr]   52:                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/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nalgebra-0.32.6/rustc-ice-2026-04-20T01_24_59-3781.txt`: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.96.0-nightly (dec9417b8 2026-03-22) 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 [specialization_graph_of] building specialization graph of trait `core::convert::From`
[INFO] [stderr] #1 [coherent_trait] coherence checking all impls of trait `core::convert::From`
[INFO] [stderr] #2 [check_well_formed] checking that `base::conversion::<impl at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nalgebra-0.32.6/src/base/conversion.rs:113:1: 113:63>` is well-formed
[INFO] [stderr] #3 [check_type_wf] checking that types are well-formed
[INFO] [stderr] #4 [analysis] running analysis passes on crate `nalgebra`
[INFO] [stderr] end of query stack
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr] error: could not compile `nalgebra` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/dec9417b8611e34e787a3e4c37686b5131f9e5c5/bin/rustc --crate-name nalgebra --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nalgebra-0.32.6/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="macros"' --cfg 'feature="matrixmultiply"' --cfg 'feature="nalgebra-macros"' --cfg 'feature="rand"' --cfg 'feature="rand-no-std"' --cfg 'feature="rand-package"' --cfg 'feature="rand_distr"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alga", "alloc", "arbitrary", "bytemuck", "compare", "convert-bytemuck", "convert-glam014", "convert-glam015", "convert-glam016", "convert-glam017", "convert-glam018", "convert-glam019", "convert-glam020", "convert-glam021", "convert-glam022", "convert-glam023", "convert-glam024", "convert-glam025", "convert-glam027", "convert-mint", "cuda", "cust_core", "debug", "default", "glam014", "glam015", "glam016", "glam017", "glam018", "glam019", "glam020", "glam021", "glam022", "glam023", "glam024", "glam025", "glam027", "io", "libm", "libm-force", "macros", "matrixcompare-core", "matrixmultiply", "mint", "nalgebra-macros", "pest", "pest_derive", "proptest", "proptest-support", "quickcheck", "rand", "rand-no-std", "rand-package", "rand_distr", "rayon", "rkyv", "rkyv-safe-deser", "rkyv-serialize", "rkyv-serialize-no-std", "serde", "serde-serialize", "serde-serialize-no-std", "slow-tests", "sparse", "std"))' -C metadata=364223b062475039 -C extra-filename=-b90dffba45c1a335 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern approx=/opt/rustwide/target/debug/deps/libapprox-500f4d1c9012ba4a.rmeta --extern matrixmultiply=/opt/rustwide/target/debug/deps/libmatrixmultiply-64d9f0b7c5321815.rmeta --extern nalgebra_macros=/opt/rustwide/target/debug/deps/libnalgebra_macros-24e10d8fefc42ea8.so --extern num_complex=/opt/rustwide/target/debug/deps/libnum_complex-6ee211e4f1fbd513.rmeta --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-ff0c7f51525be537.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-1d518d95d306069c.rmeta --extern rand_package=/opt/rustwide/target/debug/deps/librand-a248ae3d750e3d53.rmeta --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-3bb48aaf37c7ca74.rmeta --extern simba=/opt/rustwide/target/debug/deps/libsimba-bbf0869d981a9c14.rmeta --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-d9cba146b74f4906.rmeta --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "cdb85f221210acc6ce881fdb4abcee32023dcdd115221b54dcab49fc95c2d9a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdb85f221210acc6ce881fdb4abcee32023dcdd115221b54dcab49fc95c2d9a4", kill_on_drop: false }`
[INFO] [stdout] cdb85f221210acc6ce881fdb4abcee32023dcdd115221b54dcab49fc95c2d9a4