[INFO] fetching crate scholar 0.1.7...
[INFO] testing scholar-0.1.7 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate scholar 0.1.7 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate scholar 0.1.7
[INFO] finished tweaking crates.io crate scholar 0.1.7
[INFO] tweaked toml for crates.io crate scholar 0.1.7 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate scholar 0.1.7 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate scholar 0.1.7 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v1.0.3
[INFO] [stderr]   Downloaded thiserror-impl v1.0.15
[INFO] [stderr]   Downloaded thiserror v1.0.15
[INFO] [stderr]   Downloaded paste v0.1.10
[INFO] [stderr]   Downloaded number_prefix v0.3.0
[INFO] [stderr]   Downloaded bincode v1.2.1
[INFO] [stderr]   Downloaded hermit-abi v0.1.11
[INFO] [stderr]   Downloaded console v0.10.0
[INFO] [stderr]   Downloaded termios v0.3.2
[INFO] [stderr]   Downloaded anyhow v1.0.28
[INFO] [stderr]   Downloaded num-traits v0.2.11
[INFO] [stderr]   Downloaded serde v1.0.106
[INFO] [stderr]   Downloaded simba v0.1.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.10
[INFO] [stderr]   Downloaded syn v1.0.17
[INFO] [stderr]   Downloaded libm v0.2.1
[INFO] [stderr]   Downloaded ryu v1.0.3
[INFO] [stderr]   Downloaded rand_distr v0.2.2
[INFO] [stderr]   Downloaded indicatif v0.14.0
[INFO] [stderr]   Downloaded regex v1.3.6
[INFO] [stderr]   Downloaded num-integer v0.1.42
[INFO] [stderr]   Downloaded paste-impl v0.1.10
[INFO] [stderr]   Downloaded nalgebra v0.21.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.17
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.15
[INFO] [stderr]   Downloaded serde_derive v1.0.106
[INFO] [stderr]   Downloaded bstr v0.2.12
[INFO] [stderr]   Downloaded clicolors-control v1.0.1
[INFO] [stderr]   Downloaded autocfg v1.0.0
[INFO] [stderr]   Downloaded libc v0.2.69
[INFO] [stderr]   Downloaded csv v1.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2746dc99f1f101d71adef891b0e144347f87f61e9ca5a40cb101359cca1c64c7
[INFO] running `Command { std: "docker" "start" "-a" "2746dc99f1f101d71adef891b0e144347f87f61e9ca5a40cb101359cca1c64c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2746dc99f1f101d71adef891b0e144347f87f61e9ca5a40cb101359cca1c64c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2746dc99f1f101d71adef891b0e144347f87f61e9ca5a40cb101359cca1c64c7", kill_on_drop: false }`
[INFO] [stdout] 2746dc99f1f101d71adef891b0e144347f87f61e9ca5a40cb101359cca1c64c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5163fde26c54550eb04128c2bbf35d6111e3bf47889a162b814178c073c215f5
[INFO] running `Command { std: "docker" "start" "-a" "5163fde26c54550eb04128c2bbf35d6111e3bf47889a162b814178c073c215f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling matrixmultiply v0.2.3
[INFO] [stderr]    Compiling number_prefix v0.3.0
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling clicolors-control v1.0.1
[INFO] [stderr]    Compiling termios v0.3.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling console v0.10.0
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling indicatif v0.14.0
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling paste-impl v0.1.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.15
[INFO] [stderr]    Compiling paste v0.1.10
[INFO] [stderr]    Compiling thiserror v1.0.15
[INFO] [stderr]    Compiling bstr v0.2.12
[INFO] [stderr]    Compiling bincode v1.2.1
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling simba v0.1.2
[INFO] [stderr]    Compiling nalgebra v0.21.0
[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (929) panicked at /rustc-dev/562dee4820c458d823175268e41601d4c060588a/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::U1, base::dimension::U2, ?21t>, base::dimension::U1, base::dimension::U2>
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7ac43f98455b - <<std[31e582c13f4e914f]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[fa0eadad68403074]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x7ac44002e8c8 - core[fa0eadad68403074]::fmt::write
[INFO] [stderr]    2:     0x7ac43f99b566 - <std[31e582c13f4e914f]::sys::stdio::unix::Stderr as std[31e582c13f4e914f]::io::Write>::write_fmt
[INFO] [stderr]    3:     0x7ac43f95a568 - std[31e582c13f4e914f]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x7ac43f977963 - std[31e582c13f4e914f]::panicking::default_hook
[INFO] [stderr]    5:     0x7ac43e973dbc - std[31e582c13f4e914f]::panicking::update_hook::<alloc[49b8922c36ca62de]::boxed::Box<rustc_driver_impl[5d9f716931f6bd73]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    6:     0x7ac43f977c42 - std[31e582c13f4e914f]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x7ac43f95a628 - std[31e582c13f4e914f]::panicking::panic_handler::{closure#0}
[INFO] [stderr]    8:     0x7ac43f94eb79 - std[31e582c13f4e914f]::sys::backtrace::__rust_end_short_backtrace::<std[31e582c13f4e914f]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]    9:     0x7ac43f95c08d - __rustc[fc8e3a9f23f26cb]::rust_begin_unwind
[INFO] [stderr]   10:     0x7ac43c9aaf7c - core[fa0eadad68403074]::panicking::panic_fmt
[INFO] [stderr]   11:     0x7ac43c22b312 - core[fa0eadad68403074]::result::unwrap_failed
[INFO] [stderr]   12:     0x7ac440d3904a - <rustc_infer[ed2e36562c4400a5]::infer::InferCtxt>::instantiate_ty_var::<rustc_type_ir[bdf822ca6a2ba2d7]::relate::solver_relating::SolverRelating<rustc_infer[ed2e36562c4400a5]::infer::InferCtxt, rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>
[INFO] [stderr]   13:     0x7ac440d3b149 - <rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg as rustc_type_ir[bdf822ca6a2ba2d7]::relate::Relate<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>::relate::<rustc_type_ir[bdf822ca6a2ba2d7]::relate::solver_relating::SolverRelating<rustc_infer[ed2e36562c4400a5]::infer::InferCtxt, rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>
[INFO] [stderr]   14:     0x7ac440d3bcad - <core[fa0eadad68403074]::result::Result<rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg, rustc_type_ir[bdf822ca6a2ba2d7]::error::TypeError<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>> as rustc_type_ir[bdf822ca6a2ba2d7]::interner::CollectAndApply<rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg, &rustc_middle[bc4b12ab5fd100e2]::ty::list::RawList<(), rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg>>>::collect_and_apply::<core[fa0eadad68403074]::iter::adapters::map::Map<core[fa0eadad68403074]::iter::adapters::zip::Zip<core[fa0eadad68403074]::iter::adapters::copied::Copied<core[fa0eadad68403074]::slice::iter::Iter<rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg>>, core[fa0eadad68403074]::iter::adapters::copied::Copied<core[fa0eadad68403074]::slice::iter::Iter<rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg>>>, rustc_type_ir[bdf822ca6a2ba2d7]::relate::relate_args_invariantly<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt, rustc_type_ir[bdf822ca6a2ba2d7]::relate::solver_relating::SolverRelating<rustc_infer[ed2e36562c4400a5]::infer::InferCtxt, rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>::{closure#0}>, <rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>::mk_args_from_iter<core[fa0eadad68403074]::iter::adapters::map::Map<core[fa0eadad68403074]::iter::adapters::zip::Zip<core[fa0eadad68403074]::iter::adapters::copied::Copied<core[fa0eadad68403074]::slice::iter::Iter<rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg>>, core[fa0eadad68403074]::iter::adapters::copied::Copied<core[fa0eadad68403074]::slice::iter::Iter<rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg>>>, rustc_type_ir[bdf822ca6a2ba2d7]::relate::relate_args_invariantly<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt, rustc_type_ir[bdf822ca6a2ba2d7]::relate::solver_relating::SolverRelating<rustc_infer[ed2e36562c4400a5]::infer::InferCtxt, rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>::{closure#0}>, core[fa0eadad68403074]::result::Result<rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg, rustc_type_ir[bdf822ca6a2ba2d7]::error::TypeError<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>>::{closure#0}>
[INFO] [stderr]   15:     0x7ac440d3c40e - rustc_type_ir[bdf822ca6a2ba2d7]::relate::structurally_relate_tys::<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt, rustc_type_ir[bdf822ca6a2ba2d7]::relate::solver_relating::SolverRelating<rustc_infer[ed2e36562c4400a5]::infer::InferCtxt, rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>
[INFO] [stderr]   16:     0x7ac440d3940b - <rustc_type_ir[bdf822ca6a2ba2d7]::relate::solver_relating::SolverRelating<rustc_infer[ed2e36562c4400a5]::infer::InferCtxt, rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt> as rustc_type_ir[bdf822ca6a2ba2d7]::relate::TypeRelation<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>::tys
[INFO] [stderr]   17:     0x7ac440d38dbc - <rustc_infer[ed2e36562c4400a5]::infer::InferCtxt>::instantiate_ty_var::<rustc_type_ir[bdf822ca6a2ba2d7]::relate::solver_relating::SolverRelating<rustc_infer[ed2e36562c4400a5]::infer::InferCtxt, rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>
[INFO] [stderr]   18:     0x7ac440d39498 - <rustc_type_ir[bdf822ca6a2ba2d7]::relate::solver_relating::SolverRelating<rustc_infer[ed2e36562c4400a5]::infer::InferCtxt, rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt> as rustc_type_ir[bdf822ca6a2ba2d7]::relate::TypeRelation<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>::tys
[INFO] [stderr]   19:     0x7ac440d3c713 - rustc_type_ir[bdf822ca6a2ba2d7]::relate::structurally_relate_tys::<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt, rustc_type_ir[bdf822ca6a2ba2d7]::relate::solver_relating::SolverRelating<rustc_infer[ed2e36562c4400a5]::infer::InferCtxt, rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>
[INFO] [stderr]   20:     0x7ac440d3940b - <rustc_type_ir[bdf822ca6a2ba2d7]::relate::solver_relating::SolverRelating<rustc_infer[ed2e36562c4400a5]::infer::InferCtxt, rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt> as rustc_type_ir[bdf822ca6a2ba2d7]::relate::TypeRelation<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>::tys
[INFO] [stderr]   21:     0x7ac440d3b9b7 - <core[fa0eadad68403074]::result::Result<rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg, rustc_type_ir[bdf822ca6a2ba2d7]::error::TypeError<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>> as rustc_type_ir[bdf822ca6a2ba2d7]::interner::CollectAndApply<rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg, &rustc_middle[bc4b12ab5fd100e2]::ty::list::RawList<(), rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg>>>::collect_and_apply::<core[fa0eadad68403074]::iter::adapters::map::Map<core[fa0eadad68403074]::iter::adapters::zip::Zip<core[fa0eadad68403074]::iter::adapters::copied::Copied<core[fa0eadad68403074]::slice::iter::Iter<rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg>>, core[fa0eadad68403074]::iter::adapters::copied::Copied<core[fa0eadad68403074]::slice::iter::Iter<rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg>>>, rustc_type_ir[bdf822ca6a2ba2d7]::relate::relate_args_invariantly<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt, rustc_type_ir[bdf822ca6a2ba2d7]::relate::solver_relating::SolverRelating<rustc_infer[ed2e36562c4400a5]::infer::InferCtxt, rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>::{closure#0}>, <rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>::mk_args_from_iter<core[fa0eadad68403074]::iter::adapters::map::Map<core[fa0eadad68403074]::iter::adapters::zip::Zip<core[fa0eadad68403074]::iter::adapters::copied::Copied<core[fa0eadad68403074]::slice::iter::Iter<rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg>>, core[fa0eadad68403074]::iter::adapters::copied::Copied<core[fa0eadad68403074]::slice::iter::Iter<rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg>>>, rustc_type_ir[bdf822ca6a2ba2d7]::relate::relate_args_invariantly<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt, rustc_type_ir[bdf822ca6a2ba2d7]::relate::solver_relating::SolverRelating<rustc_infer[ed2e36562c4400a5]::infer::InferCtxt, rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>::{closure#0}>, core[fa0eadad68403074]::result::Result<rustc_middle[bc4b12ab5fd100e2]::ty::generic_args::GenericArg, rustc_type_ir[bdf822ca6a2ba2d7]::error::TypeError<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>>::{closure#0}>
[INFO] [stderr]   22:     0x7ac4400a3bf2 - <rustc_infer[ed2e36562c4400a5]::infer::at::At>::eq_trace::<rustc_type_ir[bdf822ca6a2ba2d7]::predicate::TraitRef<rustc_middle[bc4b12ab5fd100e2]::ty::context::TyCtxt>>
[INFO] [stderr]   23:     0x7ac440a7f194 - rustc_trait_selection[4094b86ae93e66fa]::traits::coherence::overlap
[INFO] [stderr]   24:     0x7ac43c061287 - <rustc_middle[bc4b12ab5fd100e2]::traits::specialization_graph::Children as rustc_trait_selection[4094b86ae93e66fa]::traits::specialize::specialization_graph::ChildrenExt>::insert
[INFO] [stderr]   25:     0x7ac4410db571 - <rustc_middle[bc4b12ab5fd100e2]::traits::specialization_graph::Graph as rustc_trait_selection[4094b86ae93e66fa]::traits::specialize::specialization_graph::GraphExt>::insert
[INFO] [stderr]   26:     0x7ac44004a8b4 - rustc_trait_selection[4094b86ae93e66fa]::traits::specialize::specialization_graph_provider
[INFO] [stderr]   27:     0x7ac44004e3cd - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::<rustc_middle[bc4b12ab5fd100e2]::query::caches::DefIdCache<rustc_middle[bc4b12ab5fd100e2]::query::erase::ErasedData<[u8; 8usize]>>, false>
[INFO] [stderr]   28:     0x7ac440345a54 - rustc_query_impl[787df1eb52488c09]::query_impl::specialization_graph_of::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   29:     0x7ac440349187 - rustc_hir_analysis[6f8e47aab4b5577f]::coherence::coherent_trait
[INFO] [stderr]   30:     0x7ac440348e9d - rustc_query_impl[787df1eb52488c09]::query_impl::coherent_trait::invoke_provider_fn::__rust_begin_short_backtrace
[INFO] [stderr]   31:     0x7ac440569cec - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::<rustc_middle[bc4b12ab5fd100e2]::query::caches::DefIdCache<rustc_middle[bc4b12ab5fd100e2]::query::erase::ErasedData<[u8; 1usize]>>, false>
[INFO] [stderr]   32:     0x7ac440568e40 - rustc_query_impl[787df1eb52488c09]::query_impl::coherent_trait::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   33:     0x7ac4406d4bee - rustc_hir_analysis[6f8e47aab4b5577f]::check::check::check_item_type
[INFO] [stderr]   34:     0x7ac4406d30a6 - rustc_hir_analysis[6f8e47aab4b5577f]::check::wfcheck::check_well_formed
[INFO] [stderr]   35:     0x7ac4406d3087 - rustc_query_impl[787df1eb52488c09]::query_impl::check_well_formed::invoke_provider_fn::__rust_begin_short_backtrace
[INFO] [stderr]   36:     0x7ac4406d26a4 - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::<rustc_data_structures[ef7423e94b6ebcb4]::vec_cache::VecCache<rustc_span[f92cf30e8af894a0]::def_id::LocalDefId, rustc_middle[bc4b12ab5fd100e2]::query::erase::ErasedData<[u8; 1usize]>, rustc_middle[bc4b12ab5fd100e2]::dep_graph::graph::DepNodeIndex>, false>
[INFO] [stderr]   37:     0x7ac4406d243b - rustc_query_impl[787df1eb52488c09]::query_impl::check_well_formed::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   38:     0x7ac4406cebb3 - rustc_hir_analysis[6f8e47aab4b5577f]::check::wfcheck::check_type_wf
[INFO] [stderr]   39:     0x7ac4406ceaaf - rustc_query_impl[787df1eb52488c09]::query_impl::check_type_wf::invoke_provider_fn::__rust_begin_short_backtrace
[INFO] [stderr]   40:     0x7ac44126dd50 - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::<rustc_middle[bc4b12ab5fd100e2]::query::caches::SingleCache<rustc_middle[bc4b12ab5fd100e2]::query::erase::ErasedData<[u8; 1usize]>>, false>
[INFO] [stderr]   41:     0x7ac44126db29 - rustc_query_impl[787df1eb52488c09]::query_impl::check_type_wf::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   42:     0x7ac44055e055 - rustc_hir_analysis[6f8e47aab4b5577f]::check_crate
[INFO] [stderr]   43:     0x7ac4401110da - rustc_interface[fa77fbe53284b165]::passes::analysis
[INFO] [stderr]   44:     0x7ac4412704c9 - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::<rustc_middle[bc4b12ab5fd100e2]::query::caches::SingleCache<rustc_middle[bc4b12ab5fd100e2]::query::erase::ErasedData<[u8; 0usize]>>, false>
[INFO] [stderr]   45:     0x7ac441270135 - rustc_query_impl[787df1eb52488c09]::query_impl::analysis::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   46:     0x7ac441332194 - rustc_interface[fa77fbe53284b165]::interface::run_compiler::<(), rustc_driver_impl[5d9f716931f6bd73]::run_compiler::{closure#0}>::{closure#1}
[INFO] [stderr]   47:     0x7ac441243f3e - std[31e582c13f4e914f]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[fa77fbe53284b165]::util::run_in_thread_with_globals<rustc_interface[fa77fbe53284b165]::util::run_in_thread_pool_with_globals<rustc_interface[fa77fbe53284b165]::interface::run_compiler<(), rustc_driver_impl[5d9f716931f6bd73]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   48:     0x7ac4412447e0 - <std[31e582c13f4e914f]::thread::lifecycle::spawn_unchecked<rustc_interface[fa77fbe53284b165]::util::run_in_thread_with_globals<rustc_interface[fa77fbe53284b165]::util::run_in_thread_pool_with_globals<rustc_interface[fa77fbe53284b165]::interface::run_compiler<(), rustc_driver_impl[5d9f716931f6bd73]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   49:     0x7ac44124566c - <std[31e582c13f4e914f]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   50:     0x7ac43ac59aa4 - <unknown>
[INFO] [stderr]   51:     0x7ac43ace6a64 - 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-0.21.0/rustc-ice-2026-04-10T10_30_34-926.txt`: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.96.0-nightly (562dee482 2026-03-21) 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-0.21.0/src/base/conversion.rs:111:9: 113:61>` 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] error: could not compile `nalgebra` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/562dee4820c458d823175268e41601d4c060588a/bin/rustc --crate-name nalgebra --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nalgebra-0.21.0/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="matrixmultiply"' --cfg 'feature="rand_distr"' --cfg 'feature="serde"' --cfg 'feature="serde-serialize"' --cfg 'feature="serde_derive"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("abomonation", "abomonation-serialize", "alga", "alloc", "arbitrary", "debug", "default", "io", "matrixmultiply", "mint", "pest", "pest_derive", "quickcheck", "rand_distr", "serde", "serde-serialize", "serde_derive", "sparse", "std", "stdweb"))' -C metadata=39ffdc394af60704 -C extra-filename=-8186d07b8d1bf190 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern approx=/opt/rustwide/target/debug/deps/libapprox-2f81cede573e253e.rmeta --extern generic_array=/opt/rustwide/target/debug/deps/libgeneric_array-1afbc9265b3bea01.rmeta --extern matrixmultiply=/opt/rustwide/target/debug/deps/libmatrixmultiply-b405c042bc88659b.rmeta --extern num_complex=/opt/rustwide/target/debug/deps/libnum_complex-1154beb67b7de255.rmeta --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-8162cfee4dd49b9b.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-58007a306c7c9df0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-c677abe20009a90c.rmeta --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-b9215321c35a32b0.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-6bfd40b76d93acf1.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-cf5c221e24401fbf.so --extern simba=/opt/rustwide/target/debug/deps/libsimba-f8297579187f6655.rmeta --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-5438f234ca739d5f.rmeta --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "5163fde26c54550eb04128c2bbf35d6111e3bf47889a162b814178c073c215f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5163fde26c54550eb04128c2bbf35d6111e3bf47889a162b814178c073c215f5", kill_on_drop: false }`
[INFO] [stdout] 5163fde26c54550eb04128c2bbf35d6111e3bf47889a162b814178c073c215f5