[INFO] fetching crate perfgate-scaling 0.15.1...
[INFO] testing perfgate-scaling-0.15.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate perfgate-scaling 0.15.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate perfgate-scaling 0.15.1
[INFO] finished tweaking crates.io crate perfgate-scaling 0.15.1
[INFO] tweaked toml for crates.io crate perfgate-scaling 0.15.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate perfgate-scaling 0.15.1 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 perfgate-scaling 0.15.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 74e39d7e97e4657a316d91fa30253a1e545801b0bba2b62a8c90be43fb60b40a
[INFO] running `Command { std: "docker" "start" "-a" "74e39d7e97e4657a316d91fa30253a1e545801b0bba2b62a8c90be43fb60b40a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74e39d7e97e4657a316d91fa30253a1e545801b0bba2b62a8c90be43fb60b40a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74e39d7e97e4657a316d91fa30253a1e545801b0bba2b62a8c90be43fb60b40a", kill_on_drop: false }`
[INFO] [stdout] 74e39d7e97e4657a316d91fa30253a1e545801b0bba2b62a8c90be43fb60b40a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f2d41d8a2a257fed8e653c5b39e1c7afd2152655112d4ca347c3dec54627e8ba
[INFO] running `Command { std: "docker" "start" "-a" "f2d41d8a2a257fed8e653c5b39e1c7afd2152655112d4ca347c3dec54627e8ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling zmij v1.0.19
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling perfgate-scaling v0.15.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.91s
[INFO] running `Command { std: "docker" "inspect" "f2d41d8a2a257fed8e653c5b39e1c7afd2152655112d4ca347c3dec54627e8ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2d41d8a2a257fed8e653c5b39e1c7afd2152655112d4ca347c3dec54627e8ba", kill_on_drop: false }`
[INFO] [stdout] f2d41d8a2a257fed8e653c5b39e1c7afd2152655112d4ca347c3dec54627e8ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 78e59ba7b3827a2d6bddbf9ddc5b76ab9cc4bf90bde2223f8418ff214f470d2a
[INFO] running `Command { std: "docker" "start" "-a" "78e59ba7b3827a2d6bddbf9ddc5b76ab9cc4bf90bde2223f8418ff214f470d2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling bit-vec v0.8.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling rand_xorshift v0.4.0
[INFO] [stderr]    Compiling unarray v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.8.9
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling tempfile v3.26.0
[INFO] [stderr]    Compiling rusty-fork v0.3.1
[INFO] [stderr]    Compiling proptest v1.10.0
[INFO] [stderr]    Compiling perfgate-scaling v0.15.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 11.64s
[INFO] running `Command { std: "docker" "inspect" "78e59ba7b3827a2d6bddbf9ddc5b76ab9cc4bf90bde2223f8418ff214f470d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78e59ba7b3827a2d6bddbf9ddc5b76ab9cc4bf90bde2223f8418ff214f470d2a", kill_on_drop: false }`
[INFO] [stdout] 78e59ba7b3827a2d6bddbf9ddc5b76ab9cc4bf90bde2223f8418ff214f470d2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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", kill_on_drop: false }`
[INFO] [stdout] a983379f923f1dd20437b6aacdf623f75d583ec27957f2124a5bdfc5e9a1fe4a
[INFO] running `Command { std: "docker" "start" "-a" "a983379f923f1dd20437b6aacdf623f75d583ec27957f2124a5bdfc5e9a1fe4a", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/perfgate_scaling-a8e92f92c8bf3635)
[INFO] [stdout] 
[INFO] [stdout] running 56 tests
[INFO] [stdout] test chart::tests::format_size_units ... ok
[INFO] [stdout] test chart::tests::format_y_label_units ... ok
[INFO] [stdout] test chart::tests::render_basic_chart ... ok
[INFO] [stdout] test chart::tests::render_empty_data ... ok
[INFO] [stdout] test fit::tests::fit_quadratic_model_perfect ... ok
[INFO] [stdout] test fit::tests::fit_constant_model ... ok
[INFO] [stdout] test fit::tests::r_squared_constant_actual ... ok
[INFO] [stdout] test fit::tests::fit_exponential_large_inputs_degrades_gracefully ... ok
[INFO] [stdout] test fit::tests::fit_linear_model_perfect ... ok
[INFO] [stdout] test fit::tests::r_squared_mismatched_lengths ... ok
[INFO] [stdout] test fit::tests::r_squared_empty ... ok
[INFO] [stdout] test models::tests::all_classes_ordered ... ok
[INFO] [stdout] test models::tests::characteristic_values ... ok
[INFO] [stdout] test models::tests::display_round_trips_through_as_str ... ok
[INFO] [stdout] test models::tests::evaluate_o1 ... ok
[INFO] [stdout] test models::tests::evaluate_ologn ... ok
[INFO] [stdout] test models::tests::evaluate_on2 ... ok
[INFO] [stdout] test models::tests::evaluate_on ... ok
[INFO] [stdout] test models::tests::evaluate_on3 ... ok
[INFO] [stdout] test models::tests::serde_round_trip ... ok
[INFO] [stdout] test models::tests::evaluate_onlogn ... ok
[INFO] [stdout] test report::tests::scaling_report_fail_with_degradation ... ok
[INFO] [stdout] test fit::tests::r_squared_no_fit ... ok
[INFO] [stdout] test fit::tests::r_squared_perfect_fit ... ok
[INFO] [stdout] test chart::tests::render_chart_respects_minimum_dimensions ... ok
[INFO] [stdout] test fit::tests::fit_all_models_returns_all_classes ... ok
[INFO] [stdout] test report::tests::scaling_report_pass_better_than_expected ... ok
[INFO] [stdout] test report::tests::scaling_report_pass_with_matching_expected ... ok
[INFO] [stdout] test report::tests::scaling_report_pass_without_expected ... ok
[INFO] [stdout] test report::tests::scaling_report_schema ... ok
[INFO] [stdout] test report::tests::scaling_result_serde_round_trip ... ok
[INFO] [stdout] test report::tests::size_measurement_serde_round_trip ... ok
[INFO] [stdout] test tests::all_fits_sorted_by_r_squared ... ok
[INFO] [stdout] test models::tests::evaluate_oexp ... ok
[INFO] [stdout] test report::tests::scaling_report_fail_low_r_squared ... ok
[INFO] [stdout] test tests::classify_linear_data ... ok
[INFO] [stdout] test tests::classify_constant_data ... ok
[INFO] [stdout] test tests::classify_quadratic_data ... ok
[INFO] [stdout] test tests::classify_nlogn_data ... ok
[INFO] [stdout] test tests::complexity_class_display ... ok
[INFO] [stdout] test tests::complexity_class_ordering ... ok
[INFO] [stdout] test tests::is_complexity_degraded_no_regression ... ok
[INFO] [stdout] test tests::parse_complexity_aliases ... ok
[INFO] [stdout] test tests::parse_complexity_unknown ... ok
[INFO] [stdout] test tests::is_complexity_degraded_detects_regression ... ok
[INFO] [stdout] test tests::insufficient_data_returns_error ... ok
[INFO] [stdout] test tests::nan_time_returns_error ... ok
[INFO] [stdout] test tests::negative_time_returns_error ... ok
[INFO] [stdout] test property_tests::prop_degradation_is_asymmetric ... ok
[INFO] [stdout] test property_tests::prop_constant_data_classified_as_constant ... ok
[INFO] [stdout] test property_tests::prop_linear_data_classified_as_linear ... ok
[INFO] [stdout] test property_tests::prop_quadratic_data_classified_as_quadratic ... ok
[INFO] [stdout] test chart::tests::render_chart_contains_legend ... ok
[INFO] [stdout] test tests::parse_complexity_variants ... ok
[INFO] [stdout] test tests::zero_input_size_returns_error ... ok
[INFO] [stdout] test tests::r_squared_threshold_respected ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 56 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests perfgate_scaling
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - parse_complexity (line 118) ... ok
[INFO] [stdout] test src/lib.rs - classify_complexity (line 48) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.55s; merged doctests compilation took 0.55s
[INFO] running `Command { std: "docker" "inspect" "a983379f923f1dd20437b6aacdf623f75d583ec27957f2124a5bdfc5e9a1fe4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a983379f923f1dd20437b6aacdf623f75d583ec27957f2124a5bdfc5e9a1fe4a", kill_on_drop: false }`
[INFO] [stdout] a983379f923f1dd20437b6aacdf623f75d583ec27957f2124a5bdfc5e9a1fe4a
