[INFO] fetching crate eight-point 0.8.0... [INFO] testing eight-point-0.8.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1 [INFO] extracting crate eight-point 0.8.0 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate eight-point 0.8.0 [INFO] finished tweaking crates.io crate eight-point 0.8.0 [INFO] tweaked toml for crates.io crate eight-point 0.8.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate eight-point 0.8.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 40 packages to latest compatible versions [INFO] [stderr] Adding derive_more v0.99.20 (available: v2.1.1) [INFO] [stderr] Adding float-ord v0.2.0 (available: v0.3.2) [INFO] [stderr] Adding nalgebra v0.21.1 (available: v0.34.2) [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] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded simba v0.1.5 [INFO] [stderr] Downloaded paste v0.1.18 [INFO] [stderr] Downloaded paste-impl v0.1.18 [INFO] [stderr] Downloaded rand_distr v0.2.2 [INFO] [stderr] Downloaded matrixmultiply v0.2.4 [INFO] [stderr] Downloaded cv-pinhole v0.6.0 [INFO] [stderr] Downloaded sample-consensus v1.0.2 [INFO] [stderr] Downloaded cv-core v0.15.0 [INFO] [stderr] Downloaded generic-array v0.13.3 [INFO] [stderr] Downloaded float-ord v0.2.0 [INFO] [stderr] Downloaded nalgebra v0.21.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 15dc2ca9340b282863581c8426556e225259ff4194dbd9696c9218799251bf79 [INFO] running `Command { std: "docker" "start" "-a" "15dc2ca9340b282863581c8426556e225259ff4194dbd9696c9218799251bf79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "15dc2ca9340b282863581c8426556e225259ff4194dbd9696c9218799251bf79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15dc2ca9340b282863581c8426556e225259ff4194dbd9696c9218799251bf79", kill_on_drop: false }` [INFO] [stdout] 15dc2ca9340b282863581c8426556e225259ff4194dbd9696c9218799251bf79 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f5a16a81615c16c8f6f2c75497d5087186d15718cc33e40ebfc3b332faac7352 [INFO] running `Command { std: "docker" "start" "-a" "f5a16a81615c16c8f6f2c75497d5087186d15718cc33e40ebfc3b332faac7352", kill_on_drop: false }` [INFO] [stderr] Compiling libm v0.2.16 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling libc v0.2.184 [INFO] [stderr] Compiling zerocopy v0.8.48 [INFO] [stderr] Compiling proc-macro-hack v0.5.20+deprecated [INFO] [stderr] Compiling cfg-if v1.0.4 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling typenum v1.19.0 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling rawpointer v0.2.1 [INFO] [stderr] Compiling convert_case v0.4.0 [INFO] [stderr] Compiling sample-consensus v1.0.2 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling float-ord v0.2.0 [INFO] [stderr] Compiling matrixmultiply v0.2.4 [INFO] [stderr] Compiling derive_more v0.99.20 [INFO] [stderr] Compiling paste-impl v0.1.18 [INFO] [stderr] Compiling generic-array v0.13.3 [INFO] [stderr] Compiling paste v0.1.18 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling num-integer v0.1.46 [INFO] [stderr] Compiling approx v0.3.2 [INFO] [stderr] Compiling simba v0.1.5 [INFO] [stderr] Compiling ppv-lite86 v0.2.21 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling rand_distr v0.2.2 [INFO] [stderr] Compiling nalgebra v0.21.1 [INFO] [stderr] [INFO] [stderr] thread 'rustc' (697) 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::dimension::U1, base::dimension::U2> [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x77d83c98455b - <::print::DisplayBacktrace as core[fa0eadad68403074]::fmt::Display>::fmt [INFO] [stderr] 1: 0x77d83d02e8c8 - core[fa0eadad68403074]::fmt::write [INFO] [stderr] 2: 0x77d83c99b566 - ::write_fmt [INFO] [stderr] 3: 0x77d83c95a568 - std[31e582c13f4e914f]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x77d83c977963 - std[31e582c13f4e914f]::panicking::default_hook [INFO] [stderr] 5: 0x77d83b973dbc - std[31e582c13f4e914f]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x77d83c977c42 - std[31e582c13f4e914f]::panicking::panic_with_hook [INFO] [stderr] 7: 0x77d83c95a628 - std[31e582c13f4e914f]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x77d83c94eb79 - std[31e582c13f4e914f]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x77d83c95c08d - __rustc[fc8e3a9f23f26cb]::rust_begin_unwind [INFO] [stderr] 10: 0x77d8399aaf7c - core[fa0eadad68403074]::panicking::panic_fmt [INFO] [stderr] 11: 0x77d83922b312 - core[fa0eadad68403074]::result::unwrap_failed [INFO] [stderr] 12: 0x77d83dd3904a - ::instantiate_ty_var::> [INFO] [stderr] 13: 0x77d83dd3b149 - >::relate::> [INFO] [stderr] 14: 0x77d83dd3bcad - > as rustc_type_ir[bdf822ca6a2ba2d7]::interner::CollectAndApply>>::collect_and_apply::>, core[fa0eadad68403074]::iter::adapters::copied::Copied>>, rustc_type_ir[bdf822ca6a2ba2d7]::relate::relate_args_invariantly>::{closure#0}>, ::mk_args_from_iter>, core[fa0eadad68403074]::iter::adapters::copied::Copied>>, rustc_type_ir[bdf822ca6a2ba2d7]::relate::relate_args_invariantly>::{closure#0}>, core[fa0eadad68403074]::result::Result>>::{closure#0}> [INFO] [stderr] 15: 0x77d83dd3c40e - rustc_type_ir[bdf822ca6a2ba2d7]::relate::structurally_relate_tys::> [INFO] [stderr] 16: 0x77d83dd3940b - as rustc_type_ir[bdf822ca6a2ba2d7]::relate::TypeRelation>::tys [INFO] [stderr] 17: 0x77d83dd38dbc - ::instantiate_ty_var::> [INFO] [stderr] 18: 0x77d83dd39498 - as rustc_type_ir[bdf822ca6a2ba2d7]::relate::TypeRelation>::tys [INFO] [stderr] 19: 0x77d83dd3c713 - rustc_type_ir[bdf822ca6a2ba2d7]::relate::structurally_relate_tys::> [INFO] [stderr] 20: 0x77d83dd3940b - as rustc_type_ir[bdf822ca6a2ba2d7]::relate::TypeRelation>::tys [INFO] [stderr] 21: 0x77d83dd3b9b7 - > as rustc_type_ir[bdf822ca6a2ba2d7]::interner::CollectAndApply>>::collect_and_apply::>, core[fa0eadad68403074]::iter::adapters::copied::Copied>>, rustc_type_ir[bdf822ca6a2ba2d7]::relate::relate_args_invariantly>::{closure#0}>, ::mk_args_from_iter>, core[fa0eadad68403074]::iter::adapters::copied::Copied>>, rustc_type_ir[bdf822ca6a2ba2d7]::relate::relate_args_invariantly>::{closure#0}>, core[fa0eadad68403074]::result::Result>>::{closure#0}> [INFO] [stderr] 22: 0x77d83d0a3bf2 - ::eq_trace::> [INFO] [stderr] 23: 0x77d83da7f194 - rustc_trait_selection[4094b86ae93e66fa]::traits::coherence::overlap [INFO] [stderr] 24: 0x77d839061287 - ::insert [INFO] [stderr] 25: 0x77d83e0db571 - ::insert [INFO] [stderr] 26: 0x77d83d04a8b4 - rustc_trait_selection[4094b86ae93e66fa]::traits::specialize::specialization_graph_provider [INFO] [stderr] 27: 0x77d83d04e3cd - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::>, false> [INFO] [stderr] 28: 0x77d83d345a54 - rustc_query_impl[787df1eb52488c09]::query_impl::specialization_graph_of::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 29: 0x77d83d349187 - rustc_hir_analysis[6f8e47aab4b5577f]::coherence::coherent_trait [INFO] [stderr] 30: 0x77d83d348e9d - rustc_query_impl[787df1eb52488c09]::query_impl::coherent_trait::invoke_provider_fn::__rust_begin_short_backtrace [INFO] [stderr] 31: 0x77d83d569cec - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::>, false> [INFO] [stderr] 32: 0x77d83d568e40 - rustc_query_impl[787df1eb52488c09]::query_impl::coherent_trait::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 33: 0x77d83d6d4bee - rustc_hir_analysis[6f8e47aab4b5577f]::check::check::check_item_type [INFO] [stderr] 34: 0x77d83d6d30a6 - rustc_hir_analysis[6f8e47aab4b5577f]::check::wfcheck::check_well_formed [INFO] [stderr] 35: 0x77d83d6d3087 - rustc_query_impl[787df1eb52488c09]::query_impl::check_well_formed::invoke_provider_fn::__rust_begin_short_backtrace [INFO] [stderr] 36: 0x77d83d6d26a4 - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::, rustc_middle[bc4b12ab5fd100e2]::dep_graph::graph::DepNodeIndex>, false> [INFO] [stderr] 37: 0x77d83d6d243b - rustc_query_impl[787df1eb52488c09]::query_impl::check_well_formed::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 38: 0x77d83d6cebb3 - rustc_hir_analysis[6f8e47aab4b5577f]::check::wfcheck::check_type_wf [INFO] [stderr] 39: 0x77d83d6ceaaf - rustc_query_impl[787df1eb52488c09]::query_impl::check_type_wf::invoke_provider_fn::__rust_begin_short_backtrace [INFO] [stderr] 40: 0x77d83e26dd50 - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::>, false> [INFO] [stderr] 41: 0x77d83e26db29 - rustc_query_impl[787df1eb52488c09]::query_impl::check_type_wf::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 42: 0x77d83d55e055 - rustc_hir_analysis[6f8e47aab4b5577f]::check_crate [INFO] [stderr] 43: 0x77d83d1110da - rustc_interface[fa77fbe53284b165]::passes::analysis [INFO] [stderr] 44: 0x77d83e2704c9 - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::>, false> [INFO] [stderr] 45: 0x77d83e270135 - rustc_query_impl[787df1eb52488c09]::query_impl::analysis::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 46: 0x77d83e332194 - rustc_interface[fa77fbe53284b165]::interface::run_compiler::<(), rustc_driver_impl[5d9f716931f6bd73]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 47: 0x77d83e243f3e - std[31e582c13f4e914f]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 48: 0x77d83e2447e0 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 49: 0x77d83e24566c - ::new::thread_start [INFO] [stderr] 50: 0x77d837c8aaa4 - [INFO] [stderr] 51: 0x77d837d17a64 - clone [INFO] [stderr] 52: 0x0 - [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-0.21.1/rustc-ice-2026-04-10T06_41_39-694.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 opt-level=3 -C embed-bitcode=no -C debuginfo=2 -C debug-assertions=on [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::` 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-0.21.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 -C debug-assertions=on --cfg 'feature="default"' --cfg 'feature="matrixmultiply"' --cfg 'feature="rand_distr"' --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=3c18e318a78d54f7 -C extra-filename=-2c5a22b29e4324ce --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern approx=/opt/rustwide/target/debug/deps/libapprox-7c28964ffa5b95da.rmeta --extern generic_array=/opt/rustwide/target/debug/deps/libgeneric_array-f19c46251c562af9.rmeta --extern matrixmultiply=/opt/rustwide/target/debug/deps/libmatrixmultiply-e45656a1bfeacac2.rmeta --extern num_complex=/opt/rustwide/target/debug/deps/libnum_complex-b535664044e2ea6c.rmeta --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-58b3fc0c26f645b8.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-9d3d0944bfc37d64.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-6f19e22dc8e64c5b.rmeta --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-3ed76d30ff792469.rmeta --extern simba=/opt/rustwide/target/debug/deps/libsimba-4f515b497f101acf.rmeta --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-9b3c629da271db31.rmeta --cap-lints allow --cap-lints=forbid` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "f5a16a81615c16c8f6f2c75497d5087186d15718cc33e40ebfc3b332faac7352", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f5a16a81615c16c8f6f2c75497d5087186d15718cc33e40ebfc3b332faac7352", kill_on_drop: false }` [INFO] [stdout] f5a16a81615c16c8f6f2c75497d5087186d15718cc33e40ebfc3b332faac7352