[INFO] fetching crate twine-solvers 0.6.0...
[INFO] testing twine-solvers-0.6.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate twine-solvers 0.6.0 into /workspace/builds/worker-1-tc1/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-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate twine-solvers 0.6.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded twine-core v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c993fc4d07b4df88262e0504192840b8fe4240c15d4908321f144f25bf76c3dd
[INFO] running `Command { std: "docker" "start" "-a" "c993fc4d07b4df88262e0504192840b8fe4240c15d4908321f144f25bf76c3dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c993fc4d07b4df88262e0504192840b8fe4240c15d4908321f144f25bf76c3dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c993fc4d07b4df88262e0504192840b8fe4240c15d4908321f144f25bf76c3dd", kill_on_drop: false }`
[INFO] [stdout] c993fc4d07b4df88262e0504192840b8fe4240c15d4908321f144f25bf76c3dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfaf4f7f06295e50858260b48465ce2081eac5643e5ee2b6a06d13f256ddfc9c
[INFO] running `Command { std: "docker" "start" "-a" "cfaf4f7f06295e50858260b48465ce2081eac5643e5ee2b6a06d13f256ddfc9c", kill_on_drop: false }`
[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 thiserror v2.0.18
[INFO] [stderr]    Compiling twine-solvers v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.55s
[INFO] running `Command { std: "docker" "inspect" "cfaf4f7f06295e50858260b48465ce2081eac5643e5ee2b6a06d13f256ddfc9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfaf4f7f06295e50858260b48465ce2081eac5643e5ee2b6a06d13f256ddfc9c", kill_on_drop: false }`
[INFO] [stdout] cfaf4f7f06295e50858260b48465ce2081eac5643e5ee2b6a06d13f256ddfc9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49e4e3e5cc38ea13e831667f28123855c2305db4301a5f33d25f0226595b4b37
[INFO] running `Command { std: "docker" "start" "-a" "49e4e3e5cc38ea13e831667f28123855c2305db4301a5f33d25f0226595b4b37", kill_on_drop: false }`
[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 0.78s
[INFO] running `Command { std: "docker" "inspect" "49e4e3e5cc38ea13e831667f28123855c2305db4301a5f33d25f0226595b4b37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49e4e3e5cc38ea13e831667f28123855c2305db4301a5f33d25f0226595b4b37", kill_on_drop: false }`
[INFO] [stdout] 49e4e3e5cc38ea13e831667f28123855c2305db4301a5f33d25f0226595b4b37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c8bb2612fb40658b764675a3f4cf471c99439d17c484cce6d184c0774a400f63
[INFO] running `Command { std: "docker" "start" "-a" "c8bb2612fb40658b764675a3f4cf471c99439d17c484cce6d184c0774a400f63", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/twine_solvers-6e016de585e85095)
[INFO] [stdout] 
[INFO] [stdout] running 56 tests
[INFO] [stdout] test equation::best::tests::into_solution_builds_solution ... ok
[INFO] [stdout] test equation::best::tests::into_solution_returns_none_without_eval ... ok
[INFO] [stdout] test equation::best::tests::residual_converged_requires_eval ... ok
[INFO] [stdout] test equation::best::tests::residual_converged_checks_tolerance ... ok
[INFO] [stdout] test equation::best::tests::update_ignores_worse_residual ... ok
[INFO] [stdout] test equation::best::tests::update_keeps_best_residual ... ok
[INFO] [stdout] test equation::bisection::decision::tests::assume_residual_sign_ignores_residual_value ... ok
[INFO] [stdout] test equation::bisection::decision::tests::assume_residual_sign_works_with_failed_eval ... ok
[INFO] [stdout] test equation::bisection::decision::tests::returns_error_when_eval_fails ... ok
[INFO] [stdout] test equation::bisection::decision::tests::stop_early_ignores_eval ... 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::tests::finds_cube_root ... ok
[INFO] [stdout] test equation::bisection::tests::finds_square_root ... ok
[INFO] [stdout] test equation::bisection::tests::from_bracket_finds_root ... ok
[INFO] [stdout] test equation::bisection::tests::midpoint_failure_assumes_sign ... ok
[INFO] [stdout] test equation::bisection::tests::observer_can_stop_iteration ... ok
[INFO] [stdout] test equation::bisection::tests::solve_errors_on_endpoint_failure ... ok
[INFO] [stdout] test equation::bisection::tests::zero_iters_returns_best_endpoint ... ok
[INFO] [stdout] test equation::bracket::tests::bounds_reorders_bracket ... 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::bracket::tests::bounds_rejects_non_finite ... ok
[INFO] [stdout] test equation::bracket::tests::new_rejects_inverted ... ok
[INFO] [stdout] test equation::bracket::tests::new_rejects_zero_width ... 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::bracket::tests::shrink_left_reuses_point_and_computes_new_inner_right ... ok
[INFO] [stdout] test equation::bracket::tests::shrink_shifts_bounds ... 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_failed_notifies_observer ... ok
[INFO] [stdout] test equation::bracket::tests::bounds_rejects_zero_width ... ok
[INFO] [stdout] test optimization::golden_section::init::tests::one_failed_can_stop_early ... 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::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::init::tests::both_ok_observer_can_stop ... ok
[INFO] [stdout] test optimization::golden_section::init::tests::both_ok_selects_best ... ok
[INFO] [stdout] test optimization::golden_section::tests::loop_failure_without_action_errors ... ok
[INFO] [stdout] test optimization::golden_section::tests::maximizes_cubic ... ok
[INFO] [stdout] test optimization::golden_section::tests::minimizes_cubic ... ok
[INFO] [stdout] test optimization::golden_section::init::tests::both_ok_observer_can_assume_worse ... ok
[INFO] [stdout] test optimization::golden_section::tests::event_other_is_always_better_interior_point ... ok
[INFO] [stdout] test transient::euler::tests::step_numbers_start_at_zero ... ok
[INFO] [stdout] test optimization::golden_section::tests::loop_failure_recovers_with_assume_worse ... ok
[INFO] [stdout] test optimization::golden_section::init::tests::one_failed_errors_without_observer_action ... 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::constant_velocity_motion ... ok
[INFO] [stdout] test transient::euler::tests::observer_can_stop_early ... ok
[INFO] [stdout] test optimization::golden_section::tests::loop_failure_stops_early ... ok
[INFO] [stdout] test transient::euler::tests::zero_steps_returns_initial ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 56 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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 0.21s; merged doctests compilation took 0.18s
[INFO] running `Command { std: "docker" "inspect" "c8bb2612fb40658b764675a3f4cf471c99439d17c484cce6d184c0774a400f63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8bb2612fb40658b764675a3f4cf471c99439d17c484cce6d184c0774a400f63", kill_on_drop: false }`
[INFO] [stdout] c8bb2612fb40658b764675a3f4cf471c99439d17c484cce6d184c0774a400f63