[INFO] fetching crate snake_tuner 0.5.3... [INFO] testing snake_tuner-0.5.3 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1 [INFO] extracting crate snake_tuner 0.5.3 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate snake_tuner 0.5.3 [INFO] finished tweaking crates.io crate snake_tuner 0.5.3 [INFO] tweaked toml for crates.io crate snake_tuner 0.5.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate snake_tuner 0.5.3 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 32 packages to latest compatible versions [INFO] [stderr] Adding nalgebra v0.32.6 (available: v0.34.2) [INFO] [stderr] Adding rand v0.8.5 (available: v0.10.0) [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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 28a811c99470c1c7bf335654c5238830131c17e35537af483946a4b5c7d42ea2 [INFO] running `Command { std: "docker" "start" "-a" "28a811c99470c1c7bf335654c5238830131c17e35537af483946a4b5c7d42ea2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "28a811c99470c1c7bf335654c5238830131c17e35537af483946a4b5c7d42ea2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "28a811c99470c1c7bf335654c5238830131c17e35537af483946a4b5c7d42ea2", kill_on_drop: false }` [INFO] [stdout] 28a811c99470c1c7bf335654c5238830131c17e35537af483946a4b5c7d42ea2 [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d92746eb20f02295f36e1059edb7622084df49a68721ddc5e8c241a480d29b68 [INFO] running `Command { std: "docker" "start" "-a" "d92746eb20f02295f36e1059edb7622084df49a68721ddc5e8c241a480d29b68", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling libc v0.2.184 [INFO] [stderr] Compiling bytemuck v1.25.0 [INFO] [stderr] Compiling matrixmultiply v0.3.10 [INFO] [stderr] Compiling rawpointer v0.2.1 [INFO] [stderr] Compiling nalgebra-macros v0.2.2 [INFO] [stderr] Compiling safe_arch v0.7.4 [INFO] [stderr] Compiling wide v0.7.33 [INFO] [stderr] Compiling approx v0.5.1 [INFO] [stderr] Compiling num-integer v0.1.46 [INFO] [stderr] Compiling num-complex v0.4.6 [INFO] [stderr] Compiling getrandom v0.2.17 [INFO] [stderr] Compiling num-rational v0.4.2 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling simba v0.8.1 [INFO] [stderr] Compiling rand_distr v0.4.3 [INFO] [stderr] Compiling nalgebra v0.32.6 [INFO] [stderr] [INFO] [stderr] thread 'rustc' (300) 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::dimension::Const<1_usize>, ?21t>, ?0c, 1_usize> [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7b02b059535b - <::print::DisplayBacktrace as core[6aaeda2c7ad07a48]::fmt::Display>::fmt [INFO] [stderr] 1: 0x7b02b0c2f248 - core[6aaeda2c7ad07a48]::fmt::write [INFO] [stderr] 2: 0x7b02b05ac366 - ::write_fmt [INFO] [stderr] 3: 0x7b02b056b368 - std[e72de78501789eb0]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x7b02b0588763 - std[e72de78501789eb0]::panicking::default_hook [INFO] [stderr] 5: 0x7b02af58566c - std[e72de78501789eb0]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x7b02b0588a42 - std[e72de78501789eb0]::panicking::panic_with_hook [INFO] [stderr] 7: 0x7b02b056b428 - std[e72de78501789eb0]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x7b02b0562159 - std[e72de78501789eb0]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x7b02b056ce8d - __rustc[78a4cf188af856fc]::rust_begin_unwind [INFO] [stderr] 10: 0x7b02ad626f9c - core[6aaeda2c7ad07a48]::panicking::panic_fmt [INFO] [stderr] 11: 0x7b02acd795e2 - core[6aaeda2c7ad07a48]::result::unwrap_failed [INFO] [stderr] 12: 0x7b02b191af0a - ::instantiate_ty_var::> [INFO] [stderr] 13: 0x7b02b191d009 - >::relate::> [INFO] [stderr] 14: 0x7b02b191db6d - > as rustc_type_ir[20f22f7553888b21]::interner::CollectAndApply>>::collect_and_apply::>, core[6aaeda2c7ad07a48]::iter::adapters::copied::Copied>>, rustc_type_ir[20f22f7553888b21]::relate::relate_args_invariantly>::{closure#0}>, ::mk_args_from_iter>, core[6aaeda2c7ad07a48]::iter::adapters::copied::Copied>>, rustc_type_ir[20f22f7553888b21]::relate::relate_args_invariantly>::{closure#0}>, core[6aaeda2c7ad07a48]::result::Result>>::{closure#0}> [INFO] [stderr] 15: 0x7b02b191e2ce - rustc_type_ir[20f22f7553888b21]::relate::structurally_relate_tys::> [INFO] [stderr] 16: 0x7b02b191b2cb - as rustc_type_ir[20f22f7553888b21]::relate::TypeRelation>::tys [INFO] [stderr] 17: 0x7b02b191ac7c - ::instantiate_ty_var::> [INFO] [stderr] 18: 0x7b02b191b358 - as rustc_type_ir[20f22f7553888b21]::relate::TypeRelation>::tys [INFO] [stderr] 19: 0x7b02b191e5d3 - rustc_type_ir[20f22f7553888b21]::relate::structurally_relate_tys::> [INFO] [stderr] 20: 0x7b02b191b2cb - as rustc_type_ir[20f22f7553888b21]::relate::TypeRelation>::tys [INFO] [stderr] 21: 0x7b02b191d877 - > as rustc_type_ir[20f22f7553888b21]::interner::CollectAndApply>>::collect_and_apply::>, core[6aaeda2c7ad07a48]::iter::adapters::copied::Copied>>, rustc_type_ir[20f22f7553888b21]::relate::relate_args_invariantly>::{closure#0}>, ::mk_args_from_iter>, core[6aaeda2c7ad07a48]::iter::adapters::copied::Copied>>, rustc_type_ir[20f22f7553888b21]::relate::relate_args_invariantly>::{closure#0}>, core[6aaeda2c7ad07a48]::result::Result>>::{closure#0}> [INFO] [stderr] 22: 0x7b02b0c6d172 - ::eq_trace::> [INFO] [stderr] 23: 0x7b02b163b754 - rustc_trait_selection[8cb020d34d4ddd]::traits::coherence::overlap [INFO] [stderr] 24: 0x7b02acc64017 - ::insert [INFO] [stderr] 25: 0x7b02b1ba85b5 - ::insert [INFO] [stderr] 26: 0x7b02b0c4b534 - rustc_trait_selection[8cb020d34d4ddd]::traits::specialize::specialization_graph_provider [INFO] [stderr] 27: 0x7b02b0c4f04d - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::>, false> [INFO] [stderr] 28: 0x7b02b0d695a4 - rustc_query_impl[187e90d83ba42732]::query_impl::specialization_graph_of::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 29: 0x7b02b0d6ccc7 - rustc_hir_analysis[9443468e5116f6d9]::coherence::coherent_trait [INFO] [stderr] 30: 0x7b02b0d6c9df - rustc_query_impl[187e90d83ba42732]::query_impl::coherent_trait::invoke_provider_fn::__rust_begin_short_backtrace [INFO] [stderr] 31: 0x7b02b10931ec - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::>, false> [INFO] [stderr] 32: 0x7b02b1092340 - rustc_query_impl[187e90d83ba42732]::query_impl::coherent_trait::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 33: 0x7b02b12a522e - rustc_hir_analysis[9443468e5116f6d9]::check::check::check_item_type [INFO] [stderr] 34: 0x7b02b12a36e6 - rustc_hir_analysis[9443468e5116f6d9]::check::wfcheck::check_well_formed [INFO] [stderr] 35: 0x7b02b12a36c7 - rustc_query_impl[187e90d83ba42732]::query_impl::check_well_formed::invoke_provider_fn::__rust_begin_short_backtrace [INFO] [stderr] 36: 0x7b02b12a2ce4 - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::, rustc_middle[ff930705cf6dddea]::dep_graph::graph::DepNodeIndex>, false> [INFO] [stderr] 37: 0x7b02b12a2a7b - rustc_query_impl[187e90d83ba42732]::query_impl::check_well_formed::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 38: 0x7b02b129f1f3 - rustc_hir_analysis[9443468e5116f6d9]::check::wfcheck::check_type_wf [INFO] [stderr] 39: 0x7b02b129f0ef - rustc_query_impl[187e90d83ba42732]::query_impl::check_type_wf::invoke_provider_fn::__rust_begin_short_backtrace [INFO] [stderr] 40: 0x7b02b1e54850 - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::>, false> [INFO] [stderr] 41: 0x7b02b1e54629 - rustc_query_impl[187e90d83ba42732]::query_impl::check_type_wf::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 42: 0x7b02b14e1f55 - rustc_hir_analysis[9443468e5116f6d9]::check_crate [INFO] [stderr] 43: 0x7b02b0ce46da - rustc_interface[8fb07a87386d2e99]::passes::analysis [INFO] [stderr] 44: 0x7b02b1e56fc9 - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::>, false> [INFO] [stderr] 45: 0x7b02b1e56c35 - rustc_query_impl[187e90d83ba42732]::query_impl::analysis::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 46: 0x7b02b1f01414 - rustc_interface[8fb07a87386d2e99]::interface::run_compiler::<(), rustc_driver_impl[1568c1d64401f343]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 47: 0x7b02b1e1e87e - std[e72de78501789eb0]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 48: 0x7b02b1e1f120 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 49: 0x7b02b1e1ffac - ::new::thread_start [INFO] [stderr] 50: 0x7b02ab88aaa4 - [INFO] [stderr] 51: 0x7b02ab917a64 - 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-0.32.6/rustc-ice-2026-04-10T10_36_10-298.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::` 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/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=05d09b416849def1 -C extra-filename=-7411b76be44d8b42 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern approx=/opt/rustwide/target/debug/deps/libapprox-d76b9deb80fa0780.rmeta --extern matrixmultiply=/opt/rustwide/target/debug/deps/libmatrixmultiply-40cc0532eeebbfbd.rmeta --extern nalgebra_macros=/opt/rustwide/target/debug/deps/libnalgebra_macros-e30742c22d12c9b9.so --extern num_complex=/opt/rustwide/target/debug/deps/libnum_complex-759fb389c218f282.rmeta --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-a818fab92710c5e4.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-8bc9f59f2adcb18d.rmeta --extern rand_package=/opt/rustwide/target/debug/deps/librand-2360a39da1b33afd.rmeta --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-98cc5433152627b2.rmeta --extern simba=/opt/rustwide/target/debug/deps/libsimba-b126aba8ba93a6d8.rmeta --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-0e02f3386ab040bb.rmeta --cap-lints allow --cap-lints=forbid` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "d92746eb20f02295f36e1059edb7622084df49a68721ddc5e8c241a480d29b68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d92746eb20f02295f36e1059edb7622084df49a68721ddc5e8c241a480d29b68", kill_on_drop: false }` [INFO] [stdout] d92746eb20f02295f36e1059edb7622084df49a68721ddc5e8c241a480d29b68