[INFO] fetching crate savage 0.2.0... [INFO] testing savage-0.2.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1 [INFO] extracting crate savage 0.2.0 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate savage 0.2.0 [INFO] finished tweaking crates.io crate savage 0.2.0 [INFO] tweaked toml for crates.io crate savage 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate savage 0.2.0 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 savage 0.2.0 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-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] 8a2dda2d1a1ef9d8b040bb8b3a8f44651c315d4f17454d067c8f2f6df0441370 [INFO] running `Command { std: "docker" "start" "-a" "8a2dda2d1a1ef9d8b040bb8b3a8f44651c315d4f17454d067c8f2f6df0441370", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8a2dda2d1a1ef9d8b040bb8b3a8f44651c315d4f17454d067c8f2f6df0441370", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8a2dda2d1a1ef9d8b040bb8b3a8f44651c315d4f17454d067c8f2f6df0441370", kill_on_drop: false }` [INFO] [stdout] 8a2dda2d1a1ef9d8b040bb8b3a8f44651c315d4f17454d067c8f2f6df0441370 [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] 41d33e884a2b188f6f42232d90417e6e4ba8539fa77ed7f771153c75553d9c08 [INFO] running `Command { std: "docker" "start" "-a" "41d33e884a2b188f6f42232d90417e6e4ba8539fa77ed7f771153c75553d9c08", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling libc v0.2.119 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling tiny-keccak v2.0.2 [INFO] [stderr] Compiling num-bigint v0.4.3 [INFO] [stderr] Compiling smallvec v1.8.0 [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling bytemuck v1.8.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling getrandom v0.2.5 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling quote v1.0.15 [INFO] [stderr] Compiling io-lifetimes v0.5.3 [INFO] [stderr] Compiling safe_arch v0.6.0 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling rustix v0.33.4 [INFO] [stderr] Compiling hamming v0.1.3 [INFO] [stderr] Compiling typenum v1.15.0 [INFO] [stderr] Compiling primal-bit v0.3.0 [INFO] [stderr] Compiling const-random-macro v0.1.13 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling num-complex v0.4.0 [INFO] [stderr] Compiling const-random v0.1.13 [INFO] [stderr] Compiling approx v0.5.1 [INFO] [stderr] Compiling wide v0.7.4 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling linux-raw-sys v0.0.42 [INFO] [stderr] Compiling paste v1.0.6 [INFO] [stderr] Compiling rawpointer v0.2.1 [INFO] [stderr] Compiling primal-estimate v0.3.1 [INFO] [stderr] Compiling primal-sieve v0.3.2 [INFO] [stderr] Compiling primal-check v0.3.1 [INFO] [stderr] Compiling matrixmultiply v0.3.2 [INFO] [stderr] Compiling ahash v0.3.8 [INFO] [stderr] Compiling dirs-sys-next v0.1.2 [INFO] [stderr] Compiling nibble_vec v0.1.0 [INFO] [stderr] Compiling endian-type v0.1.2 [INFO] [stderr] Compiling dirs-next v2.0.0 [INFO] [stderr] Compiling nix v0.23.1 [INFO] [stderr] Compiling radix_trie v0.2.1 [INFO] [stderr] Compiling chumsky v0.8.0 [INFO] [stderr] Compiling primal v0.3.0 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling dirs-sys v0.3.6 [INFO] [stderr] Compiling simba v0.6.0 [INFO] [stderr] Compiling permutohedron v0.2.4 [INFO] [stderr] Compiling num v0.4.0 [INFO] [stderr] Compiling utf8parse v0.2.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling unicode-width v0.1.9 [INFO] [stderr] Compiling fd-lock v3.0.4 [INFO] [stderr] Compiling unicode-segmentation v1.9.0 [INFO] [stderr] Compiling directories v4.0.1 [INFO] [stderr] Compiling darling_core v0.13.1 [INFO] [stderr] Compiling regex v1.5.5 [INFO] [stderr] Compiling nalgebra-macros v0.1.0 [INFO] [stderr] Compiling derivative v2.2.0 [INFO] [stderr] Compiling rustyline-derive v0.6.0 [INFO] [stderr] Compiling rustyline v9.1.2 [INFO] [stderr] Compiling darling_macro v0.13.1 [INFO] [stderr] Compiling darling v0.13.1 [INFO] [stderr] Compiling savage_macros v0.1.0 [INFO] [stderr] Compiling nalgebra v0.29.0 [INFO] [stderr] [INFO] [stderr] thread 'rustc' (1282) 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: 0x7b9b36b9535b - <::print::DisplayBacktrace as core[6aaeda2c7ad07a48]::fmt::Display>::fmt [INFO] [stderr] 1: 0x7b9b3722f248 - core[6aaeda2c7ad07a48]::fmt::write [INFO] [stderr] 2: 0x7b9b36bac366 - ::write_fmt [INFO] [stderr] 3: 0x7b9b36b6b368 - std[e72de78501789eb0]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x7b9b36b88763 - std[e72de78501789eb0]::panicking::default_hook [INFO] [stderr] 5: 0x7b9b35b8566c - std[e72de78501789eb0]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x7b9b36b88a42 - std[e72de78501789eb0]::panicking::panic_with_hook [INFO] [stderr] 7: 0x7b9b36b6b428 - std[e72de78501789eb0]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x7b9b36b62159 - std[e72de78501789eb0]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x7b9b36b6ce8d - __rustc[78a4cf188af856fc]::rust_begin_unwind [INFO] [stderr] 10: 0x7b9b33c26f9c - core[6aaeda2c7ad07a48]::panicking::panic_fmt [INFO] [stderr] 11: 0x7b9b333795e2 - core[6aaeda2c7ad07a48]::result::unwrap_failed [INFO] [stderr] 12: 0x7b9b37f1af0a - ::instantiate_ty_var::> [INFO] [stderr] 13: 0x7b9b37f1d009 - >::relate::> [INFO] [stderr] 14: 0x7b9b37f1db6d - > 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: 0x7b9b37f1e2ce - rustc_type_ir[20f22f7553888b21]::relate::structurally_relate_tys::> [INFO] [stderr] 16: 0x7b9b37f1b2cb - as rustc_type_ir[20f22f7553888b21]::relate::TypeRelation>::tys [INFO] [stderr] 17: 0x7b9b37f1ac7c - ::instantiate_ty_var::> [INFO] [stderr] 18: 0x7b9b37f1b358 - as rustc_type_ir[20f22f7553888b21]::relate::TypeRelation>::tys [INFO] [stderr] 19: 0x7b9b37f1e5d3 - rustc_type_ir[20f22f7553888b21]::relate::structurally_relate_tys::> [INFO] [stderr] 20: 0x7b9b37f1b2cb - as rustc_type_ir[20f22f7553888b21]::relate::TypeRelation>::tys [INFO] [stderr] 21: 0x7b9b37f1d877 - > 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: 0x7b9b3726d172 - ::eq_trace::> [INFO] [stderr] 23: 0x7b9b37c3b754 - rustc_trait_selection[8cb020d34d4ddd]::traits::coherence::overlap [INFO] [stderr] 24: 0x7b9b33264017 - ::insert [INFO] [stderr] 25: 0x7b9b381a85b5 - ::insert [INFO] [stderr] 26: 0x7b9b3724b534 - rustc_trait_selection[8cb020d34d4ddd]::traits::specialize::specialization_graph_provider [INFO] [stderr] 27: 0x7b9b3724f04d - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::>, false> [INFO] [stderr] 28: 0x7b9b373695a4 - rustc_query_impl[187e90d83ba42732]::query_impl::specialization_graph_of::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 29: 0x7b9b3736ccc7 - rustc_hir_analysis[9443468e5116f6d9]::coherence::coherent_trait [INFO] [stderr] 30: 0x7b9b3736c9df - rustc_query_impl[187e90d83ba42732]::query_impl::coherent_trait::invoke_provider_fn::__rust_begin_short_backtrace [INFO] [stderr] 31: 0x7b9b376931ec - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::>, false> [INFO] [stderr] 32: 0x7b9b37692340 - rustc_query_impl[187e90d83ba42732]::query_impl::coherent_trait::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 33: 0x7b9b378a522e - rustc_hir_analysis[9443468e5116f6d9]::check::check::check_item_type [INFO] [stderr] 34: 0x7b9b378a36e6 - rustc_hir_analysis[9443468e5116f6d9]::check::wfcheck::check_well_formed [INFO] [stderr] 35: 0x7b9b378a36c7 - rustc_query_impl[187e90d83ba42732]::query_impl::check_well_formed::invoke_provider_fn::__rust_begin_short_backtrace [INFO] [stderr] 36: 0x7b9b378a2ce4 - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::, rustc_middle[ff930705cf6dddea]::dep_graph::graph::DepNodeIndex>, false> [INFO] [stderr] 37: 0x7b9b378a2a7b - rustc_query_impl[187e90d83ba42732]::query_impl::check_well_formed::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 38: 0x7b9b3789f1f3 - rustc_hir_analysis[9443468e5116f6d9]::check::wfcheck::check_type_wf [INFO] [stderr] 39: 0x7b9b3789f0ef - rustc_query_impl[187e90d83ba42732]::query_impl::check_type_wf::invoke_provider_fn::__rust_begin_short_backtrace [INFO] [stderr] 40: 0x7b9b38454850 - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::>, false> [INFO] [stderr] 41: 0x7b9b38454629 - rustc_query_impl[187e90d83ba42732]::query_impl::check_type_wf::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 42: 0x7b9b37ae1f55 - rustc_hir_analysis[9443468e5116f6d9]::check_crate [INFO] [stderr] 43: 0x7b9b372e46da - rustc_interface[8fb07a87386d2e99]::passes::analysis [INFO] [stderr] 44: 0x7b9b38456fc9 - rustc_query_impl[187e90d83ba42732]::execution::try_execute_query::>, false> [INFO] [stderr] 45: 0x7b9b38456c35 - rustc_query_impl[187e90d83ba42732]::query_impl::analysis::execute_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 46: 0x7b9b38501414 - rustc_interface[8fb07a87386d2e99]::interface::run_compiler::<(), rustc_driver_impl[1568c1d64401f343]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 47: 0x7b9b3841e87e - std[e72de78501789eb0]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 48: 0x7b9b3841f120 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 49: 0x7b9b3841ffac - ::new::thread_start [INFO] [stderr] 50: 0x7b9b31e8aaa4 - [INFO] [stderr] 51: 0x7b9b31f17a64 - 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-0.29.0/rustc-ice-2026-04-10T10_31_33-1277.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-0.29.0/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="macros"' --cfg 'feature="matrixmultiply"' --cfg 'feature="nalgebra-macros"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("abomonation", "abomonation-serialize", "alga", "alloc", "arbitrary", "bytemuck", "compare", "convert-bytemuck", "convert-glam013", "convert-glam014", "convert-glam015", "convert-glam016", "convert-glam017", "convert-mint", "debug", "default", "glam013", "glam014", "glam015", "glam016", "glam017", "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", "rkyv", "rkyv-serialize", "rkyv-serialize-no-std", "serde", "serde-serialize", "serde-serialize-no-std", "slow-tests", "sparse", "std"))' -C metadata=62aec1d2bd1816e0 -C extra-filename=-b3aa6c94c3c65f6f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern approx=/opt/rustwide/target/debug/deps/libapprox-5336422455691094.rmeta --extern matrixmultiply=/opt/rustwide/target/debug/deps/libmatrixmultiply-80c20f4febaa61cf.rmeta --extern nalgebra_macros=/opt/rustwide/target/debug/deps/libnalgebra_macros-513ac35ff1d34727.so --extern num_complex=/opt/rustwide/target/debug/deps/libnum_complex-740a100e26732944.rmeta --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-4b655485a7ceeb22.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-a483eba7c8f26758.rmeta --extern simba=/opt/rustwide/target/debug/deps/libsimba-3e6c3c9bd9b7261d.rmeta --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-67fed09daf3ef94b.rmeta --cap-lints allow --cap-lints=forbid` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "41d33e884a2b188f6f42232d90417e6e4ba8539fa77ed7f771153c75553d9c08", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41d33e884a2b188f6f42232d90417e6e4ba8539fa77ed7f771153c75553d9c08", kill_on_drop: false }` [INFO] [stdout] 41d33e884a2b188f6f42232d90417e6e4ba8539fa77ed7f771153c75553d9c08