[INFO] fetching crate spherical-cow 0.1.4... [INFO] testing spherical-cow-0.1.4 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2 [INFO] extracting crate spherical-cow 0.1.4 into /workspace/builds/worker-7-tc1/source [INFO] started tweaking crates.io crate spherical-cow 0.1.4 [INFO] removed 9 missing examples [INFO] finished tweaking crates.io crate spherical-cow 0.1.4 [INFO] tweaked toml for crates.io crate spherical-cow 0.1.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate spherical-cow 0.1.4 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 spherical-cow 0.1.4 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] 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] Downloading crates ... 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v0.3.0 [INFO] [stderr] Downloaded darling_macro v0.10.2 [INFO] [stderr] Downloaded ndk-macro v0.2.0 [INFO] [stderr] Downloaded percent-encoding v2.1.0 [INFO] [stderr] Downloaded winapi-build v0.1.1 [INFO] [stderr] Downloaded proc-macro-crate v0.1.5 [INFO] [stderr] Downloaded ab_glyph_rasterizer v0.1.4 [INFO] [stderr] Downloaded same-file v1.0.6 [INFO] [stderr] Downloaded scoped-tls v1.0.0 [INFO] [stderr] Downloaded xcursor v0.3.3 [INFO] [stderr] Downloaded color_quant v1.1.0 [INFO] [stderr] Downloaded x11-dl v2.18.5 [INFO] [stderr] Downloaded serde_derive v1.0.123 [INFO] [stderr] Downloaded serde_json v1.0.62 [INFO] [stderr] Downloaded crossbeam-utils v0.7.2 [INFO] [stderr] Downloaded rusttype v0.8.3 [INFO] [stderr] Downloaded lazy_static v1.4.0 [INFO] [stderr] Downloaded num-integer v0.1.44 [INFO] [stderr] Downloaded getrandom v0.1.16 [INFO] [stderr] Downloaded num-traits v0.2.14 [INFO] [stderr] Downloaded getrandom v0.2.2 [INFO] [stderr] Downloaded ppv-lite86 v0.2.10 [INFO] [stderr] Downloaded wasi v0.10.2+wasi-snapshot-preview1 [INFO] [stderr] Downloaded rand_hc v0.3.0 [INFO] [stderr] Downloaded quote v1.0.8 [INFO] [stderr] Downloaded num_cpus v1.13.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d1fb7282d1b715af0f4c608503f3c76cf5e4e4cb70a6f1c35b3606c2f87cabe6 [INFO] running `Command { std: "docker" "start" "-a" "d1fb7282d1b715af0f4c608503f3c76cf5e4e4cb70a6f1c35b3606c2f87cabe6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d1fb7282d1b715af0f4c608503f3c76cf5e4e4cb70a6f1c35b3606c2f87cabe6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d1fb7282d1b715af0f4c608503f3c76cf5e4e4cb70a6f1c35b3606c2f87cabe6", kill_on_drop: false }` [INFO] [stdout] d1fb7282d1b715af0f4c608503f3c76cf5e4e4cb70a6f1c35b3606c2f87cabe6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 0b455f3239df50a865bddd7013c0ad15bef4945600aa7025ca78436a30e9ebe5 [INFO] running `Command { std: "docker" "start" "-a" "0b455f3239df50a865bddd7013c0ad15bef4945600aa7025ca78436a30e9ebe5", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Compiling libm v0.2.1 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Compiling paste v1.0.4 [INFO] [stderr] Compiling rawpointer v0.2.1 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling matrixmultiply v0.2.4 [INFO] [stderr] Compiling itertools v0.10.0 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Compiling num-complex v0.3.1 [INFO] [stderr] Compiling approx v0.4.0 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling simba v0.3.1 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling rand_core v0.6.1 [INFO] [stderr] Compiling rand_chacha v0.3.0 [INFO] [stderr] Compiling rand v0.8.3 [INFO] [stderr] Compiling rand_distr v0.3.0 [INFO] [stderr] Compiling rand_distr v0.4.0 [INFO] [stderr] Compiling nalgebra v0.24.1 [INFO] [stderr] [INFO] [stderr] thread 'rustc' (613) 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: 0x720f7af8455b - <::print::DisplayBacktrace as core[fa0eadad68403074]::fmt::Display>::fmt [INFO] [stderr] 1: 0x720f7b62e8c8 - core[fa0eadad68403074]::fmt::write [INFO] [stderr] 2: 0x720f7af9b566 - ::write_fmt [INFO] [stderr] 3: 0x720f7af5a568 - std[31e582c13f4e914f]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x720f7af77963 - std[31e582c13f4e914f]::panicking::default_hook [INFO] [stderr] 5: 0x720f79f73dbc - std[31e582c13f4e914f]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x720f7af77c42 - std[31e582c13f4e914f]::panicking::panic_with_hook [INFO] [stderr] 7: 0x720f7af5a628 - std[31e582c13f4e914f]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x720f7af4eb79 - std[31e582c13f4e914f]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x720f7af5c08d - __rustc[fc8e3a9f23f26cb]::rust_begin_unwind [INFO] [stderr] 10: 0x720f77faaf7c - core[fa0eadad68403074]::panicking::panic_fmt [INFO] [stderr] 11: 0x720f7782b312 - core[fa0eadad68403074]::result::unwrap_failed [INFO] [stderr] 12: 0x720f7c33904a - ::instantiate_ty_var::> [INFO] [stderr] 13: 0x720f7c33b149 - >::relate::> [INFO] [stderr] 14: 0x720f7c33bcad - > 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: 0x720f7c33c40e - rustc_type_ir[bdf822ca6a2ba2d7]::relate::structurally_relate_tys::> [INFO] [stderr] 16: 0x720f7c33940b - as rustc_type_ir[bdf822ca6a2ba2d7]::relate::TypeRelation>::tys [INFO] [stderr] 17: 0x720f7c338dbc - ::instantiate_ty_var::> [INFO] [stderr] 18: 0x720f7c339498 - as rustc_type_ir[bdf822ca6a2ba2d7]::relate::TypeRelation>::tys [INFO] [stderr] 19: 0x720f7c33c713 - rustc_type_ir[bdf822ca6a2ba2d7]::relate::structurally_relate_tys::> [INFO] [stderr] 20: 0x720f7c33940b - as rustc_type_ir[bdf822ca6a2ba2d7]::relate::TypeRelation>::tys [INFO] [stderr] 21: 0x720f7c33b9b7 - > 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: 0x720f7b6a3bf2 - ::eq_trace::> [INFO] [stderr] 23: 0x720f7c07f194 - rustc_trait_selection[4094b86ae93e66fa]::traits::coherence::overlap [INFO] [stderr] 24: 0x720f77661287 - ::insert [INFO] [stderr] 25: 0x720f7c6db571 - ::insert [INFO] [stderr] 26: 0x720f7b64a8b4 - rustc_trait_selection[4094b86ae93e66fa]::traits::specialize::specialization_graph_provider [INFO] [stderr] 27: 0x720f7b64e3cd - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::>, false> [INFO] [stderr] 28: 0x720f7b945a54 - rustc_query_impl[787df1eb52488c09]::query_impl::specialization_graph_of::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 29: 0x720f7b949187 - rustc_hir_analysis[6f8e47aab4b5577f]::coherence::coherent_trait [INFO] [stderr] 30: 0x720f7b948e9d - rustc_query_impl[787df1eb52488c09]::query_impl::coherent_trait::invoke_provider_fn::__rust_begin_short_backtrace [INFO] [stderr] 31: 0x720f7bb69cec - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::>, false> [INFO] [stderr] 32: 0x720f7bb68e40 - rustc_query_impl[787df1eb52488c09]::query_impl::coherent_trait::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 33: 0x720f7bcd4bee - rustc_hir_analysis[6f8e47aab4b5577f]::check::check::check_item_type [INFO] [stderr] 34: 0x720f7bcd30a6 - rustc_hir_analysis[6f8e47aab4b5577f]::check::wfcheck::check_well_formed [INFO] [stderr] 35: 0x720f7bcd3087 - rustc_query_impl[787df1eb52488c09]::query_impl::check_well_formed::invoke_provider_fn::__rust_begin_short_backtrace [INFO] [stderr] 36: 0x720f7bcd26a4 - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::, rustc_middle[bc4b12ab5fd100e2]::dep_graph::graph::DepNodeIndex>, false> [INFO] [stderr] 37: 0x720f7bcd243b - rustc_query_impl[787df1eb52488c09]::query_impl::check_well_formed::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 38: 0x720f7bccebb3 - rustc_hir_analysis[6f8e47aab4b5577f]::check::wfcheck::check_type_wf [INFO] [stderr] 39: 0x720f7bcceaaf - rustc_query_impl[787df1eb52488c09]::query_impl::check_type_wf::invoke_provider_fn::__rust_begin_short_backtrace [INFO] [stderr] 40: 0x720f7c86dd50 - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::>, false> [INFO] [stderr] 41: 0x720f7c86db29 - rustc_query_impl[787df1eb52488c09]::query_impl::check_type_wf::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 42: 0x720f7bb5e055 - rustc_hir_analysis[6f8e47aab4b5577f]::check_crate [INFO] [stderr] 43: 0x720f7b7110da - rustc_interface[fa77fbe53284b165]::passes::analysis [INFO] [stderr] 44: 0x720f7c8704c9 - rustc_query_impl[787df1eb52488c09]::execution::try_execute_query::>, false> [INFO] [stderr] 45: 0x720f7c870135 - rustc_query_impl[787df1eb52488c09]::query_impl::analysis::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 46: 0x720f7c932194 - rustc_interface[fa77fbe53284b165]::interface::run_compiler::<(), rustc_driver_impl[5d9f716931f6bd73]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 47: 0x720f7c843f3e - std[31e582c13f4e914f]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 48: 0x720f7c8447e0 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 49: 0x720f7c84566c - ::new::thread_start [INFO] [stderr] 50: 0x720f7628aaa4 - [INFO] [stderr] 51: 0x720f76317a64 - 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-0.24.1/rustc-ice-2026-04-20T00_18_16-611.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::` 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-0.24.1/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="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("abomonation", "abomonation-serialize", "alga", "alloc", "arbitrary", "compare", "debug", "default", "io", "libm", "libm-force", "matrixcompare-core", "matrixmultiply", "mint", "pest", "pest_derive", "quickcheck", "rand_distr", "serde", "serde-serialize", "sparse", "std", "stdweb"))' -C metadata=4998ead4bf0da797 -C extra-filename=-bae39ee5f143b5f7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern approx=/opt/rustwide/target/debug/deps/libapprox-4e7250e16e442b34.rmeta --extern generic_array=/opt/rustwide/target/debug/deps/libgeneric_array-5d85206e561d1ed4.rmeta --extern matrixmultiply=/opt/rustwide/target/debug/deps/libmatrixmultiply-6ada86cb6866caa9.rmeta --extern num_complex=/opt/rustwide/target/debug/deps/libnum_complex-59aaa5ecf4eb9d98.rmeta --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-84ddf0b304894ed9.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-522c8faecbadca73.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-179a16c01154fb30.rmeta --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-baebba47e542511e.rmeta --extern simba=/opt/rustwide/target/debug/deps/libsimba-73c2a08fc1a46b0e.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" "0b455f3239df50a865bddd7013c0ad15bef4945600aa7025ca78436a30e9ebe5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b455f3239df50a865bddd7013c0ad15bef4945600aa7025ca78436a30e9ebe5", kill_on_drop: false }` [INFO] [stdout] 0b455f3239df50a865bddd7013c0ad15bef4945600aa7025ca78436a30e9ebe5