[INFO] fetching crate twine-solvers 0.6.0...
[INFO] testing twine-solvers-0.6.0 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate twine-solvers 0.6.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate twine-solvers 0.6.0
[INFO] finished tweaking crates.io crate twine-solvers 0.6.0
[INFO] tweaked toml for crates.io crate twine-solvers 0.6.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate twine-solvers 0.6.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate twine-solvers 0.6.0 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ac5d14b49b057a36b78c3a200d11b02f3e43b0af40cf83be2cc3198224a4e25d
[INFO] running `Command { std: "docker" "start" "ac5d14b49b057a36b78c3a200d11b02f3e43b0af40cf83be2cc3198224a4e25d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac5d14b49b057a36b78c3a200d11b02f3e43b0af40cf83be2cc3198224a4e25d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ac5d14b49b057a36b78c3a200d11b02f3e43b0af40cf83be2cc3198224a4e25d" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac5d14b49b057a36b78c3a200d11b02f3e43b0af40cf83be2cc3198224a4e25d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ac5d14b49b057a36b78c3a200d11b02f3e43b0af40cf83be2cc3198224a4e25d" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling twine-core v0.6.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling twine-solvers v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.35s
[INFO] running `Command { std: "docker" "inspect" "ac5d14b49b057a36b78c3a200d11b02f3e43b0af40cf83be2cc3198224a4e25d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ac5d14b49b057a36b78c3a200d11b02f3e43b0af40cf83be2cc3198224a4e25d" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling twine-solvers v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `Command { std: "docker" "inspect" "ac5d14b49b057a36b78c3a200d11b02f3e43b0af40cf83be2cc3198224a4e25d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ac5d14b49b057a36b78c3a200d11b02f3e43b0af40cf83be2cc3198224a4e25d" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/twine-solvers/0ddec5c8bb7f4630/out/twine_solvers-0ddec5c8bb7f4630)
[INFO] [stdout] 
[INFO] [stdout] running 56 tests
[INFO] [stdout] test equation::best::tests::into_solution_builds_solution ... ok
[INFO] [stdout] test equation::bisection::decision::tests::returns_error_when_eval_fails ... ok
[INFO] [stdout] test equation::bisection::decision::tests::uses_residual_sign_when_no_action ... ok
[INFO] [stdout] test equation::bisection::tests::assume_residual_sign_discards_eval ... ok
[INFO] [stdout] test equation::bisection::tests::converges_on_small_bracket_width ... ok
[INFO] [stdout] test equation::bisection::tests::errors_when_no_successful_evaluations ... ok
[INFO] [stdout] test equation::bisection::decision::tests::assume_residual_sign_works_with_failed_eval ... ok
[INFO] [stdout] test equation::best::tests::residual_converged_checks_tolerance ... ok
[INFO] [stdout] test equation::bisection::tests::midpoint_failure_assumes_sign ... ok
[INFO] [stdout] test equation::bracket::tests::bounds_rejects_non_finite ... ok
[INFO] [stdout] test equation::best::tests::residual_converged_requires_eval ... ok
[INFO] [stdout] test equation::bracket::tests::new_rejects_inverted ... ok
[INFO] [stdout] test equation::best::tests::into_solution_returns_none_without_eval ... ok
[INFO] [stdout] test equation::bracket::tests::bounds_rejects_zero_width ... ok
[INFO] [stdout] test equation::bisection::tests::solve_errors_on_endpoint_failure ... ok
[INFO] [stdout] test equation::bracket::tests::bounds_reorders_bracket ... ok
[INFO] [stdout] test equation::bisection::tests::finds_square_root ... ok
[INFO] [stdout] test equation::bracket::tests::new_rejects_zero_width ... ok
[INFO] [stdout] test optimization::golden_section::bracket::tests::shrink_left_reuses_point_and_computes_new_inner_right ... ok
[INFO] [stdout] test equation::bracket::tests::new_rejects_no_sign_change ... ok
[INFO] [stdout] test equation::bracket::tests::new_rejects_non_finite ... ok
[INFO] [stdout] test equation::best::tests::update_ignores_worse_residual ... ok
[INFO] [stdout] test equation::bisection::decision::tests::assume_residual_sign_ignores_residual_value ... ok
[INFO] [stdout] test equation::best::tests::update_keeps_best_residual ... ok
[INFO] [stdout] test equation::bisection::tests::from_bracket_finds_root ... ok
[INFO] [stdout] test equation::bisection::tests::zero_iters_returns_best_endpoint ... ok
[INFO] [stdout] test equation::bisection::tests::observer_can_stop_iteration ... ok
[INFO] [stdout] test optimization::golden_section::init::tests::one_failed_errors_without_observer_action ... ok
[INFO] [stdout] test equation::bisection::decision::tests::stop_early_ignores_eval ... ok
[INFO] [stdout] test optimization::golden_section::init::tests::both_ok_observer_can_stop ... ok
[INFO] [stdout] test equation::bisection::tests::finds_cube_root ... ok
[INFO] [stdout] test optimization::golden_section::tests::assume_worse_steers_away_from_true_minimum ... ok
[INFO] [stdout] test optimization::golden_section::init::tests::one_failed_recovers_with_assume_worse ... ok
[INFO] [stdout] test optimization::golden_section::tests::assume_worse_steers_search ... ok
[INFO] [stdout] test optimization::golden_section::bracket::tests::shrink_right_reuses_point_and_computes_new_inner_left ... ok
[INFO] [stdout] test optimization::golden_section::init::tests::both_ok_observer_can_assume_worse ... ok
[INFO] [stdout] test optimization::golden_section::init::tests::both_failed_notifies_observer ... ok
[INFO] [stdout] test optimization::golden_section::tests::event_other_is_always_better_interior_point ... ok
[INFO] [stdout] test optimization::golden_section::tests::loop_failure_without_action_errors ... ok
[INFO] [stdout] test optimization::golden_section::init::tests::both_failed_returns_error ... ok
[INFO] [stdout] test optimization::golden_section::tests::assume_worse_discards_from_best ... ok
[INFO] [stdout] test optimization::golden_section::tests::loop_failure_recovers_with_assume_worse ... ok
[INFO] [stdout] test optimization::golden_section::tests::loop_failure_stops_early ... ok
[INFO] [stdout] test optimization::golden_section::tests::observer_can_stop_early ... ok
[INFO] [stdout] test transient::euler::tests::finalize_step_is_called_and_applied ... ok
[INFO] [stdout] test transient::euler::tests::zero_steps_returns_initial ... ok
[INFO] [stdout] test transient::euler::tests::step_numbers_start_at_zero ... ok
[INFO] [stdout] test equation::bracket::tests::shrink_shifts_bounds ... ok
[INFO] [stdout] test optimization::golden_section::bracket::tests::bracket_auto_reverses_if_needed ... ok
[INFO] [stdout] test optimization::golden_section::bracket::tests::bracket_initialized_with_golden_ratio_points ... ok
[INFO] [stdout] test optimization::golden_section::tests::minimizes_cubic ... ok
[INFO] [stdout] test optimization::golden_section::init::tests::both_ok_selects_best ... ok
[INFO] [stdout] test optimization::golden_section::init::tests::one_failed_can_stop_early ... ok
[INFO] [stdout] test optimization::golden_section::tests::maximizes_cubic ... ok
[INFO] [stdout] test transient::euler::tests::constant_velocity_motion ... ok
[INFO] [stdout] test transient::euler::tests::observer_can_stop_early ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 56 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests twine_solvers
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/transient/euler.rs - transient::euler (line 12) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.41s; merged doctests compilation took 0.40s
[INFO] running `Command { std: "docker" "inspect" "ac5d14b49b057a36b78c3a200d11b02f3e43b0af40cf83be2cc3198224a4e25d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac5d14b49b057a36b78c3a200d11b02f3e43b0af40cf83be2cc3198224a4e25d", kill_on_drop: false }`
[INFO] [stdout] ac5d14b49b057a36b78c3a200d11b02f3e43b0af40cf83be2cc3198224a4e25d
