[INFO] fetching crate symbios-genetics 0.1.3...
[INFO] testing symbios-genetics-0.1.3 against 1.95.0 for beta-1.96-3
[INFO] extracting crate symbios-genetics 0.1.3 into /workspace/builds/worker-5-tc1/source
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate symbios-genetics 0.1.3
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate symbios-genetics 0.1.3
[INFO] tweaked toml for crates.io crate symbios-genetics 0.1.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate symbios-genetics 0.1.3 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate symbios-genetics 0.1.3 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" "+1.95.0" "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 ...
[INFO] [stderr]   Downloaded rand_pcg v0.9.0
[INFO] [stderr]   Downloaded zmij v1.0.19
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.37
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[INFO] [stderr]   Downloaded clap_builder v4.5.56
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[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.108
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[INFO] [stderr]   Downloaded libc v0.2.180
[INFO] [stderr]   Downloaded web-sys v0.3.85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07a22f821f80ede5d1c97ed2ee54927dbfeafd933a435647cdb0d1b9f9446b7f
[INFO] running `Command { std: "docker" "start" "-a" "07a22f821f80ede5d1c97ed2ee54927dbfeafd933a435647cdb0d1b9f9446b7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07a22f821f80ede5d1c97ed2ee54927dbfeafd933a435647cdb0d1b9f9446b7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07a22f821f80ede5d1c97ed2ee54927dbfeafd933a435647cdb0d1b9f9446b7f", kill_on_drop: false }`
[INFO] [stdout] 07a22f821f80ede5d1c97ed2ee54927dbfeafd933a435647cdb0d1b9f9446b7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 127189c3c837b89695efbf9df7a1483627a8135a0d582492f2ba024d1c743776
[INFO] running `Command { std: "docker" "start" "-a" "127189c3c837b89695efbf9df7a1483627a8135a0d582492f2ba024d1c743776", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling unicode-ident v1.0.22
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[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling rand_pcg v0.9.0
[INFO] [stderr]    Compiling symbios-genetics v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.41s
[INFO] running `Command { std: "docker" "inspect" "127189c3c837b89695efbf9df7a1483627a8135a0d582492f2ba024d1c743776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "127189c3c837b89695efbf9df7a1483627a8135a0d582492f2ba024d1c743776", kill_on_drop: false }`
[INFO] [stdout] 127189c3c837b89695efbf9df7a1483627a8135a0d582492f2ba024d1c743776
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d279d5928cc7a4a28722f075ee1b6fa61003dedfab4daa0bb44162ec60070ce5
[INFO] running `Command { std: "docker" "start" "-a" "d279d5928cc7a4a28722f075ee1b6fa61003dedfab4daa0bb44162ec60070ce5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling zerocopy v0.8.37
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling find-msvc-tools v0.1.9
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling zmij v1.0.19
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling cc v1.2.56
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling itoa v1.0.17
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling clap_lex v0.7.7
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling clap_builder v4.5.56
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling alloca v0.4.0
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling clap v4.5.56
[INFO] [stderr]    Compiling criterion-plot v0.8.2
[INFO] [stderr]    Compiling page_size v0.6.0
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[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling zerocopy-derive v0.8.37
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling rand_pcg v0.9.0
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling criterion v0.8.2
[INFO] [stderr]    Compiling symbios-genetics v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "d279d5928cc7a4a28722f075ee1b6fa61003dedfab4daa0bb44162ec60070ce5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d279d5928cc7a4a28722f075ee1b6fa61003dedfab4daa0bb44162ec60070ce5", kill_on_drop: false }`
[INFO] [stdout] d279d5928cc7a4a28722f075ee1b6fa61003dedfab4daa0bb44162ec60070ce5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e3142f2b10d429371b25090f2cba2c18880e20084004cfcaa4ce5544e15ab2cf
[INFO] running `Command { std: "docker" "start" "-a" "e3142f2b10d429371b25090f2cba2c18880e20084004cfcaa4ce5544e15ab2cf", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/symbios_genetics-7b4bae0c6dd5ab5d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/adversarial_review_tests.rs (/opt/rustwide/target/debug/deps/adversarial_review_tests-bb65c259a14bd1f2)
[INFO] [stdout] 
[INFO] [stdout] running 40 tests
[INFO] [stdout] test test_map_elites_deserialize_rejects_zero_batch_size ... ok
[INFO] [stdout] test test_map_elites_map_to_index_into_buffer ... ok
[INFO] [stdout] test test_map_elites_nan_descriptor_rejected ... ok
[INFO] [stdout] test test_map_elites_nan_fitness_rejected_during_seed ... ok
[INFO] [stdout] test test_map_elites_deserialize_rejects_archive_key_desync ... ok
[INFO] [stdout] test test_map_elites_deserialize_rejects_incomplete_keys_vec ... ok
[INFO] [stdout] test test_map_elites_deserialize_rejects_zero_resolution ... ok
[INFO] [stdout] test test_map_elites_nan_recovery ... ok
[INFO] [stdout] test test_map_elites_batch_size_one_works ... ok
[INFO] [stdout] test test_map_elites_resolution_extreme_documented ... ok
[INFO] [stdout] test test_map_elites_resolution_max_safe ... ok
[INFO] [stdout] test test_map_elites_resolution_one_works ... ok
[INFO] [stdout] test test_map_elites_map_to_index_into_reuses_buffer ... ok
[INFO] [stdout] test test_map_elites_resolution_precision_moderate ... ok
[INFO] [stdout] test test_map_elites_seed_population_replaces_worse ... ok
[INFO] [stdout] test test_map_elites_seed_population_respects_elitism ... ok
[INFO] [stdout] test test_nsga2_binary_tournament_nan_no_bias ... ok
[INFO] [stdout] test test_map_elites_deterministic_execution ... ok
[INFO] [stdout] test test_nsga2_binary_tournament_works_after_new ... ok
[INFO] [stdout] test test_map_elites_archive_iteration_order_deterministic ... ok
[INFO] [stdout] test test_nsga2_deserialize_rejects_crowding_distances_desync ... ok
[INFO] [stdout] test test_nsga2_deserialize_rejects_nan_mutation_rate ... ok
[INFO] [stdout] test test_nsga2_deserialize_rejects_pop_size_mismatch ... ok
[INFO] [stdout] test test_nsga2_deserialize_rejects_ranks_desync ... ok
[INFO] [stdout] test test_nsga2_dominates_nan_handling ... ok
[INFO] [stdout] test test_nsga2_initial_ranks_calculated ... ok
[INFO] [stdout] test test_map_elites_nan_fitness_rejected_during_step ... ok
[INFO] [stdout] test test_map_elites_rejects_zero_resolution - should panic ... ok
[INFO] [stdout] test test_map_elites_step_uses_buffer_optimization ... ok
[INFO] [stdout] test test_simple_ga_elitism_clamping_maintains_progress ... ok
[INFO] [stdout] test test_simple_ga_elitism_returns_configured_when_valid ... ok
[INFO] [stdout] test test_map_elites_rejects_zero_batch_size - should panic ... ok
[INFO] [stdout] test test_simple_ga_elitism_returns_effective_value ... ok
[INFO] [stdout] test test_simple_ga_encapsulation_via_public_api ... ok
[INFO] [stdout] test test_nsga2_valid_serialization_roundtrip ... ok
[INFO] [stdout] test test_simple_ga_population_size_invariant_maintained ... ok
[INFO] [stdout] test test_nsga2_nan_crowding_distance_handling ... ok
[INFO] [stdout] test test_nsga2_nan_objectives_pushed_to_worst_front ... ok
[INFO] [stdout] test test_nsga2_sorting_avoids_excessive_cloning ... ok
[INFO] [stdout] test test_map_elites_parent_selection_scales_sublinearly ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 40 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/bug_regression_tests.rs (/opt/rustwide/target/debug/deps/bug_regression_tests-0d93ed9dd53131ec)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test_nsga2_dominates_detects_length_mismatch ... ok
[INFO] [stdout] test test_map_elites_population_visible_after_seeding ... ok
[INFO] [stdout] test test_nsga2_empty_initial_population_handled ... ok
[INFO] [stdout] test test_nsga2_fields_are_encapsulated ... ok
[INFO] [stdout] test test_nsga2_handles_ragged_objectives_gracefully ... ok
[INFO] [stdout] test test_map_elites_population_visible_after_deserialization ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/critical_bug_tests.rs (/opt/rustwide/target/debug/deps/critical_bug_tests-8f33dfb25b803b7c)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test_map_elites_archive_is_encapsulated ... ok
[INFO] [stdout] test test_map_elites_uniform_bin_distribution ... ok
[INFO] [stdout] test test_nsga2_dominates_correct_for_equal_length ... ok
[INFO] [stdout] test test_nsga2_dominates_both_false_on_length_mismatch ... ok
[INFO] [stdout] test test_simple_ga_warns_on_excessive_elitism ... ok
[INFO] [stdout] test test_map_elites_boundary_bins_equal_size ... ok
[INFO] [stdout] test test_simple_ga_elitism_equal_pop_size_still_evolves ... ok
[INFO] [stdout] test test_map_elites_mutation_parallelizable ... ok
[INFO] [stdout] test test_nsga2_rejects_ragged_objectives ... ok
[INFO] [stdout] test test_map_elites_cache_performance_scales_with_batch_not_archive ... ok
[INFO] [stdout] test test_nsga2_binary_tournament_provides_selection_pressure ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-0908003976a91da8)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_nsga2_dominance_logic ... ok
[INFO] [stdout] test tests::test_map_elites_index_mapping ... ok
[INFO] [stdout] test tests::test_nsga2_step_diversity ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/robustness_tests.rs (/opt/rustwide/target/debug/deps/robustness_tests-954431fbafee5e35)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test test_simple_ga_empty_population ... ok
[INFO] [stdout] test test_map_elites_default_batch_size_is_reasonable ... ok
[INFO] [stdout] test test_simple_ga_handles_nan_fitness_without_panic ... ok
[INFO] [stdout] test test_simple_ga_elitism_exceeds_population ... ok
[INFO] [stdout] test test_nsga2_crowding_distance_single_objective_all_same ... ok
[INFO] [stdout] test test_nsga2_handles_nan_objectives_without_panic ... ok
[INFO] [stdout] test test_simple_ga_single_individual_population ... ok
[INFO] [stdout] test test_nsga2_crowding_distance_zero_range ... ok
[INFO] [stdout] test test_simple_ga_handles_partial_nan_fitness ... ok
[INFO] [stdout] test test_simple_ga_population_smaller_than_tournament_size ... ok
[INFO] [stdout] test parallel_tests::test_parallel_provides_speedup_relative_to_sequential ... FAILED
[INFO] [stdout] test test_map_elites_large_archive_performance ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- parallel_tests::test_parallel_provides_speedup_relative_to_sequential stdout ----
[INFO] [stdout] Sequential estimate: 50ms, Parallel actual: 54.252977ms, Speedup: 0.92x
[INFO] [stdout] 
[INFO] [stdout] thread 'parallel_tests::test_parallel_provides_speedup_relative_to_sequential' (114) panicked at tests/robustness_tests.rs:334:9:
[INFO] [stdout] Parallel execution should provide speedup. Got 0.92x (expected > 1.5x)
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x63cc994b338a - std[e28293b1aa0f68bd]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x63cc994b338a - std[e28293b1aa0f68bd]::backtrace_rs::backtrace::trace_unsynchronized::<std[e28293b1aa0f68bd]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x63cc994b338a - std[e28293b1aa0f68bd]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x63cc994b338a - <<std[e28293b1aa0f68bd]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[c1f1a4ba060b9bfa]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x63cc994c7fea - <core[c1f1a4ba060b9bfa]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x63cc994c7fea - core[c1f1a4ba060b9bfa]::fmt::write
[INFO] [stdout]    6:     0x63cc994b7c62 - std[e28293b1aa0f68bd]::io::default_write_fmt::<alloc[fdfd2bd8633a6659]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x63cc994b7c62 - <alloc[fdfd2bd8633a6659]::vec::Vec<u8> as std[e28293b1aa0f68bd]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x63cc9949239f - <std[e28293b1aa0f68bd]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x63cc9949239f - std[e28293b1aa0f68bd]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x63cc994ab829 - std[e28293b1aa0f68bd]::panicking::default_hook
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x63cc99420c7c - <alloc[fdfd2bd8633a6659]::boxed::Box<dyn for<'a, 'b> core[c1f1a4ba060b9bfa]::ops::function::Fn<(&'a std[e28293b1aa0f68bd]::panic::PanicHookInfo<'b>,), Output = ()> + core[c1f1a4ba060b9bfa]::marker::Sync + core[c1f1a4ba060b9bfa]::marker::Send> as core[c1f1a4ba060b9bfa]::ops::function::Fn<(&std[e28293b1aa0f68bd]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/alloc/src/boxed.rs:2254:9
[INFO] [stdout]   12:     0x63cc99420c7c - test[273d7611820c9051]::test_main_with_exit_callback::<test[273d7611820c9051]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x63cc994abaa2 - <alloc[fdfd2bd8633a6659]::boxed::Box<dyn for<'a, 'b> core[c1f1a4ba060b9bfa]::ops::function::Fn<(&'a std[e28293b1aa0f68bd]::panic::PanicHookInfo<'b>,), Output = ()> + core[c1f1a4ba060b9bfa]::marker::Sync + core[c1f1a4ba060b9bfa]::marker::Send> as core[c1f1a4ba060b9bfa]::ops::function::Fn<(&std[e28293b1aa0f68bd]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/alloc/src/boxed.rs:2254:9
[INFO] [stdout]   14:     0x63cc994abaa2 - std[e28293b1aa0f68bd]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x63cc99492458 - std[e28293b1aa0f68bd]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x63cc99489df9 - std[e28293b1aa0f68bd]::sys::backtrace::__rust_end_short_backtrace::<std[e28293b1aa0f68bd]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x63cc9949316d - __rustc[b7974e8690430dd9]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x63cc994c889c - core[c1f1a4ba060b9bfa]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x63cc993f308e - robustness_tests::parallel_tests::test_parallel_provides_speedup_relative_to_sequential::hcde1418f475b9a9b
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/robustness_tests.rs:334:9
[INFO] [stdout]   20:     0x63cc993f3117 - robustness_tests::parallel_tests::test_parallel_provides_speedup_relative_to_sequential::{{closure}}::h709a0fa87fdf8b0e
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/robustness_tests.rs:307:63
[INFO] [stdout]   21:     0x63cc993bf2d6 - core::ops::function::FnOnce::call_once::he3292da8c58856eb
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x63cc99414d5b - <fn() -> core[c1f1a4ba060b9bfa]::result::Result<(), alloc[fdfd2bd8633a6659]::string::String> as core[c1f1a4ba060b9bfa]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x63cc99414d5b - test[273d7611820c9051]::__rust_begin_short_backtrace::<core[c1f1a4ba060b9bfa]::result::Result<(), alloc[fdfd2bd8633a6659]::string::String>, fn() -> core[c1f1a4ba060b9bfa]::result::Result<(), alloc[fdfd2bd8633a6659]::string::String>>
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/test/src/lib.rs:663:18
[INFO] [stdout]   24:     0x63cc9942174b - test[273d7611820c9051]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/test/src/lib.rs:686:74
[INFO] [stdout]   25:     0x63cc9942174b - <core[c1f1a4ba060b9bfa]::panic::unwind_safe::AssertUnwindSafe<test[273d7611820c9051]::run_test_in_process::{closure#0}> as core[c1f1a4ba060b9bfa]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   26:     0x63cc9942174b - std[e28293b1aa0f68bd]::panicking::catch_unwind::do_call::<core[c1f1a4ba060b9bfa]::panic::unwind_safe::AssertUnwindSafe<test[273d7611820c9051]::run_test_in_process::{closure#0}>, core[c1f1a4ba060b9bfa]::result::Result<(), alloc[fdfd2bd8633a6659]::string::String>>
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:581:40
[INFO] [stdout]   27:     0x63cc9942174b - std[e28293b1aa0f68bd]::panicking::catch_unwind::<core[c1f1a4ba060b9bfa]::result::Result<(), alloc[fdfd2bd8633a6659]::string::String>, core[c1f1a4ba060b9bfa]::panic::unwind_safe::AssertUnwindSafe<test[273d7611820c9051]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:544:19
[INFO] [stdout]   28:     0x63cc9942174b - std[e28293b1aa0f68bd]::panic::catch_unwind::<core[c1f1a4ba060b9bfa]::panic::unwind_safe::AssertUnwindSafe<test[273d7611820c9051]::run_test_in_process::{closure#0}>, core[c1f1a4ba060b9bfa]::result::Result<(), alloc[fdfd2bd8633a6659]::string::String>>
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panic.rs:359:14
[INFO] [stdout]   29:     0x63cc9942174b - test[273d7611820c9051]::run_test_in_process
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/test/src/lib.rs:686:27
[INFO] [stdout]   30:     0x63cc9942174b - test[273d7611820c9051]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/test/src/lib.rs:607:43
[INFO] [stdout]   31:     0x63cc9941ce64 - test[273d7611820c9051]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/test/src/lib.rs:637:41
[INFO] [stdout]   32:     0x63cc9941ce64 - std[e28293b1aa0f68bd]::sys::backtrace::__rust_begin_short_backtrace::<test[273d7611820c9051]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   33:     0x63cc99424352 - std[e28293b1aa0f68bd]::thread::lifecycle::spawn_unchecked::<test[273d7611820c9051]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   34:     0x63cc99424352 - <core[c1f1a4ba060b9bfa]::panic::unwind_safe::AssertUnwindSafe<std[e28293b1aa0f68bd]::thread::lifecycle::spawn_unchecked<test[273d7611820c9051]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[c1f1a4ba060b9bfa]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   35:     0x63cc99424352 - std[e28293b1aa0f68bd]::panicking::catch_unwind::do_call::<core[c1f1a4ba060b9bfa]::panic::unwind_safe::AssertUnwindSafe<std[e28293b1aa0f68bd]::thread::lifecycle::spawn_unchecked<test[273d7611820c9051]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:581:40
[INFO] [stdout]   36:     0x63cc99424352 - std[e28293b1aa0f68bd]::panicking::catch_unwind::<(), core[c1f1a4ba060b9bfa]::panic::unwind_safe::AssertUnwindSafe<std[e28293b1aa0f68bd]::thread::lifecycle::spawn_unchecked<test[273d7611820c9051]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:544:19
[INFO] [stdout]   37:     0x63cc99424352 - std[e28293b1aa0f68bd]::panic::catch_unwind::<core[c1f1a4ba060b9bfa]::panic::unwind_safe::AssertUnwindSafe<std[e28293b1aa0f68bd]::thread::lifecycle::spawn_unchecked<test[273d7611820c9051]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panic.rs:359:14
[INFO] [stdout]   38:     0x63cc99424352 - std[e28293b1aa0f68bd]::thread::lifecycle::spawn_unchecked::<test[273d7611820c9051]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   39:     0x63cc99424352 - <std[e28293b1aa0f68bd]::thread::lifecycle::spawn_unchecked<test[273d7611820c9051]::run_test::{closure#1}, ()>::{closure#1} as core[c1f1a4ba060b9bfa]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   40:     0x63cc994b2c8f - <alloc[fdfd2bd8633a6659]::boxed::Box<dyn core[c1f1a4ba060b9bfa]::ops::function::FnOnce<(), Output = ()> + core[c1f1a4ba060b9bfa]::marker::Send> as core[c1f1a4ba060b9bfa]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/alloc/src/boxed.rs:2240:9
[INFO] [stdout]   41:     0x63cc994b2c8f - <std[e28293b1aa0f68bd]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   42:     0x7d30e104faa4 - <unknown>
[INFO] [stdout]   43:     0x7d30e10dca64 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     parallel_tests::test_parallel_provides_speedup_relative_to_sequential
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 11 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test robustness_tests`
[INFO] running `Command { std: "docker" "inspect" "e3142f2b10d429371b25090f2cba2c18880e20084004cfcaa4ce5544e15ab2cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3142f2b10d429371b25090f2cba2c18880e20084004cfcaa4ce5544e15ab2cf", kill_on_drop: false }`
[INFO] [stdout] e3142f2b10d429371b25090f2cba2c18880e20084004cfcaa4ce5544e15ab2cf
