[INFO] fetching crate meerkat-core 0.5.2...
[INFO] testing meerkat-core-0.5.2 against beta-2026-04-21 for beta-1.96-1
[INFO] extracting crate meerkat-core 0.5.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate meerkat-core 0.5.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate meerkat-core 0.5.2
[INFO] tweaked toml for crates.io crate meerkat-core 0.5.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate meerkat-core 0.5.2 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate meerkat-core 0.5.2 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]       Adding meerkat-models v0.5.2
[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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbcb0b164f90a1988c35f743c3ee660b456231dc54446b181f5e5315e35c00ab
[INFO] running `Command { std: "docker" "start" "-a" "fbcb0b164f90a1988c35f743c3ee660b456231dc54446b181f5e5315e35c00ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbcb0b164f90a1988c35f743c3ee660b456231dc54446b181f5e5315e35c00ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbcb0b164f90a1988c35f743c3ee660b456231dc54446b181f5e5315e35c00ab", kill_on_drop: false }`
[INFO] [stdout] fbcb0b164f90a1988c35f743c3ee660b456231dc54446b181f5e5315e35c00ab
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5acfb4d6b2ce8e6ab796dc08a349e062d3b93eb068f201336b23278a0e300dbe
[INFO] running `Command { std: "docker" "start" "-a" "5acfb4d6b2ce8e6ab796dc08a349e062d3b93eb068f201336b23278a0e300dbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling ref-cast v1.0.25
[INFO] [stderr]    Compiling zmij v1.0.16
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling zerocopy v0.8.33
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling itoa v1.0.17
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling borrow-or-share v0.2.4
[INFO] [stderr]    Compiling bit-vec v0.8.0
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling futures-task v0.3.32
[INFO] [stderr]    Compiling dyn-clone v1.0.20
[INFO] [stderr]    Compiling toml_write v0.1.2
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling winnow v0.7.14
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling bytecount v0.6.9
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling num-cmp v0.1.0
[INFO] [stderr]    Compiling humantime v2.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling socket2 v0.6.1
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling dirs v5.0.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling fraction v0.15.3
[INFO] [stderr]    Compiling uuid v1.19.0
[INFO] [stderr]    Compiling indexmap v2.13.1
[INFO] [stderr]    Compiling uuid-simd v0.8.0
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling zerovec-derive v0.11.2
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling ref-cast-impl v1.0.25
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling strum_macros v0.27.2
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.1
[INFO] [stderr]    Compiling schemars_derive v1.2.1
[INFO] [stderr]    Compiling tokio v1.49.0
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling fancy-regex v0.14.0
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling zerofrom v0.1.6
[INFO] [stderr]    Compiling yoke v0.8.1
[INFO] [stderr]    Compiling zerovec v0.11.5
[INFO] [stderr]    Compiling zerotrie v0.2.3
[INFO] [stderr]    Compiling tinystr v0.8.2
[INFO] [stderr]    Compiling potential_utf v0.1.4
[INFO] [stderr]    Compiling icu_collections v2.1.1
[INFO] [stderr]    Compiling strum v0.27.2
[INFO] [stderr]    Compiling icu_locale_core v2.1.1
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling icu_provider v2.1.1
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling fluent-uri v0.3.2
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling schemars v1.2.1
[INFO] [stderr]    Compiling email_address v0.2.9
[INFO] [stderr]    Compiling chrono v0.4.44
[INFO] [stderr]    Compiling humantime-serde v1.1.1
[INFO] [stderr]    Compiling icu_properties v2.1.2
[INFO] [stderr]    Compiling icu_normalizer v2.1.1
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling referencing v0.26.2
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling meerkat-models v0.5.2
[INFO] [stderr]    Compiling jsonschema v0.26.2
[INFO] [stderr]    Compiling toml v0.8.23
[INFO] [stderr]    Compiling meerkat-core v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 22s
[INFO] running `Command { std: "docker" "inspect" "5acfb4d6b2ce8e6ab796dc08a349e062d3b93eb068f201336b23278a0e300dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5acfb4d6b2ce8e6ab796dc08a349e062d3b93eb068f201336b23278a0e300dbe", kill_on_drop: false }`
[INFO] [stdout] 5acfb4d6b2ce8e6ab796dc08a349e062d3b93eb068f201336b23278a0e300dbe
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 909cf2d64aed06c89481bb614b4adc393c543bc6b0fbcb576292c81e0ac889bc
[INFO] running `Command { std: "docker" "start" "-a" "909cf2d64aed06c89481bb614b4adc393c543bc6b0fbcb576292c81e0ac889bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling tokio v1.49.0
[INFO] [stderr]    Compiling tempfile v3.24.0
[INFO] [stderr]    Compiling meerkat-core v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `meerkat-core` (lib test)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name meerkat_core --edition=2024 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 '--warn=clippy::pedantic' '--warn=clippy::cargo' '--warn=clippy::all' '--allow=clippy::wildcard_imports' '--allow=clippy::used_underscore_binding' '--deny=clippy::unwrap_used' '--allow=clippy::unused_self' '--allow=clippy::unused_async' --forbid=unsafe_code '--allow=clippy::unreadable_literal' '--allow=clippy::unnecessary_wraps' '--deny=clippy::unimplemented' '--allow=clippy::trivially_copy_pass_by_ref' '--allow=clippy::too_many_lines' '--deny=clippy::todo' '--allow=clippy::struct_field_names' '--allow=clippy::struct_excessive_bools' '--allow=clippy::single_match_else' '--allow=clippy::similar_names' '--allow=clippy::return_self_not_must_use' '--allow=clippy::ref_option' '--deny=clippy::redundant_clone' '--allow=clippy::print_stdout' '--allow=clippy::print_stderr' '--deny=clippy::panic' '--allow=clippy::needless_pass_by_value' '--allow=clippy::needless_continue' '--deny=clippy::mutex_integer' '--deny=clippy::mutex_atomic' '--allow=clippy::must_use_candidate' '--allow=clippy::multiple_crate_versions' '--allow=clippy::module_name_repetitions' '--allow=clippy::missing_panics_doc' '--allow=clippy::missing_fields_in_debug' '--allow=clippy::missing_errors_doc' '--allow=clippy::missing_docs_in_private_items' '--allow=clippy::missing_const_for_fn' '--allow=clippy::match_wildcard_for_single_variants' '--allow=clippy::match_same_arms' '--allow=clippy::match_bool' '--allow=clippy::map_unwrap_or' '--allow=clippy::manual_string_new' '--allow=clippy::manual_let_else' '--allow=clippy::let_underscore_untyped' '--allow=clippy::items_after_statements' '--deny=clippy::implicit_clone' '--allow=clippy::ignore_without_reason' '--allow=clippy::format_push_string' '--allow=clippy::fn_params_excessive_bools' '--allow=clippy::float_cmp' '--deny=clippy::expect_used' '--allow=clippy::doc_markdown' '--allow=clippy::doc_link_with_quotes' '--allow=clippy::default_trait_access' '--deny=clippy::dbg_macro' '--allow=clippy::cast_sign_loss' '--allow=clippy::cast_precision_loss' '--allow=clippy::cast_possible_wrap' '--allow=clippy::cast_possible_truncation' '--allow=clippy::cast_lossless' '--allow=clippy::case_sensitive_file_extension_comparisons' '--allow=clippy::cargo_common_metadata' '--allow=clippy::assigning_clones' '--allow=clippy::allow_attributes_without_reason' --test --cfg 'feature="default"' --cfg 'feature="jsonschema"' --cfg 'feature="schema"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "jsonschema", "schema"))' -C metadata=1ec6507dddf85a3a -C extra-filename=-ba2ce25cc7394711 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-916d4824000e0f5f.so --extern chrono=/opt/rustwide/target/debug/deps/libchrono-0ec29dd63c6502b0.rlib --extern dirs=/opt/rustwide/target/debug/deps/libdirs-fcc11db9de091333.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-4cc40ee49fe988a6.rlib --extern humantime_serde=/opt/rustwide/target/debug/deps/libhumantime_serde-036302b26239f2e5.rlib --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-4a5110cf46c3b1bc.rlib --extern jsonschema=/opt/rustwide/target/debug/deps/libjsonschema-eba450e42b5b2ee1.rlib --extern meerkat_models=/opt/rustwide/target/debug/deps/libmeerkat_models-04a7387c258ec9a4.rlib --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-47f21e61e6d100dc.rlib --extern schemars=/opt/rustwide/target/debug/deps/libschemars-60f51715854146a6.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-31881b2e2464133e.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-2801d81b089205a9.rlib --extern strum=/opt/rustwide/target/debug/deps/libstrum-039dcf27267e12dd.rlib --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-3496e007a4c6e2e7.rlib --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-feff7291a7f3b2cf.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-62377bfbaeb8155c.rlib --extern toml=/opt/rustwide/target/debug/deps/libtoml-ba0260627f0351c4.rlib --extern tracing=/opt/rustwide/target/debug/deps/libtracing-8ff8dc631118c033.rlib --extern uuid=/opt/rustwide/target/debug/deps/libuuid-166c7b68808e4eab.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "909cf2d64aed06c89481bb614b4adc393c543bc6b0fbcb576292c81e0ac889bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "909cf2d64aed06c89481bb614b4adc393c543bc6b0fbcb576292c81e0ac889bc", kill_on_drop: false }`
[INFO] [stdout] 909cf2d64aed06c89481bb614b4adc393c543bc6b0fbcb576292c81e0ac889bc