[INFO] fetching crate twine-solve 0.4.2...
[INFO] testing twine-solve-0.4.2 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate twine-solve 0.4.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate twine-solve 0.4.2
[INFO] finished tweaking crates.io crate twine-solve 0.4.2
[INFO] tweaked toml for crates.io crate twine-solve 0.4.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate twine-solve 0.4.2 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-solve 0.4.2 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.104
[INFO] [stderr]   Downloaded twine-core v0.4.2
[INFO] [stderr]   Downloaded syn v2.0.112
[INFO] [stderr]   Downloaded uom v0.37.0
[INFO] [stderr]   Downloaded petgraph v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 89782f2cf51e14c93c857571fa5cb899bae19e3f8b540cca800e3a8827a25693
[INFO] running `Command { std: "docker" "start" "-a" "89782f2cf51e14c93c857571fa5cb899bae19e3f8b540cca800e3a8827a25693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89782f2cf51e14c93c857571fa5cb899bae19e3f8b540cca800e3a8827a25693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89782f2cf51e14c93c857571fa5cb899bae19e3f8b540cca800e3a8827a25693", kill_on_drop: false }`
[INFO] [stdout] 89782f2cf51e14c93c857571fa5cb899bae19e3f8b540cca800e3a8827a25693
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e89250057d4f2a8d5ca3319486c9282aa634b74d0e868dd6e19296dfdc8243d5
[INFO] running `Command { std: "docker" "start" "-a" "e89250057d4f2a8d5ca3319486c9282aa634b74d0e868dd6e19296dfdc8243d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.104
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling indexmap v2.12.1
[INFO] [stderr]    Compiling uom v0.37.0
[INFO] [stderr]    Compiling petgraph v0.7.1
[INFO] [stderr]    Compiling syn v2.0.112
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling twine-core v0.4.2
[INFO] [stderr]    Compiling twine-solve v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.84s
[INFO] running `Command { std: "docker" "inspect" "e89250057d4f2a8d5ca3319486c9282aa634b74d0e868dd6e19296dfdc8243d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e89250057d4f2a8d5ca3319486c9282aa634b74d0e868dd6e19296dfdc8243d5", kill_on_drop: false }`
[INFO] [stdout] e89250057d4f2a8d5ca3319486c9282aa634b74d0e868dd6e19296dfdc8243d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e119191f881b229cb9dfcd02cf52a5e8a41dc92084ed66c54c3f9ac863459735
[INFO] running `Command { std: "docker" "start" "-a" "e119191f881b229cb9dfcd02cf52a5e8a41dc92084ed66c54c3f9ac863459735", kill_on_drop: false }`
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling twine-solve v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "e119191f881b229cb9dfcd02cf52a5e8a41dc92084ed66c54c3f9ac863459735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e119191f881b229cb9dfcd02cf52a5e8a41dc92084ed66c54c3f9ac863459735", kill_on_drop: false }`
[INFO] [stdout] e119191f881b229cb9dfcd02cf52a5e8a41dc92084ed66c54c3f9ac863459735
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a9c87b593a15235ac28658c692528805a42b6b77fbed3f5fb33dec8a676933df
[INFO] running `Command { std: "docker" "start" "-a" "a9c87b593a15235ac28658c692528805a42b6b77fbed3f5fb33dec8a676933df", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/twine_solve-eed6fd3124ebbc70)
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test equation::bisection::best::tests::finish_builds_solution ... ok
[INFO] [stdout] test equation::bisection::best::tests::finish_errors_without_eval ... ok
[INFO] [stdout] test equation::bisection::best::tests::residual_converged_checks_tolerance ... ok
[INFO] [stdout] test equation::bisection::best::tests::residual_converged_requires_best ... ok
[INFO] [stdout] test equation::bisection::bracket::tests::bounds_rejects_non_finite ... ok
[INFO] [stdout] test equation::bisection::bracket::tests::bounds_reorders_bracket ... ok
[INFO] [stdout] test equation::bisection::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::bracket::tests::bounds_rejects_zero_width ... ok
[INFO] [stdout] test equation::bisection::best::tests::update_ignores_worse_residual ... ok
[INFO] [stdout] test equation::bisection::bracket::tests::new_bracket_rejects_no_sign_change ... ok
[INFO] [stdout] test equation::bisection::bracket::tests::shrink_shifts_bounds ... ok
[INFO] [stdout] test equation::bisection::decision::tests::returns_error_when_eval_fails ... ok
[INFO] [stdout] test equation::bisection::decision::tests::assume_residual_sign_works_with_failed_eval ... ok
[INFO] [stdout] test equation::bisection::decision::tests::stop_early_ignores_eval ... ok
[INFO] [stdout] test equation::bisection::tests::zero_iters_returns_best_endpoint ... 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::midpoint_failure_assumes_sign ... ok
[INFO] [stdout] test equation::bisection::tests::finds_square_root ... ok
[INFO] [stdout] test equation::bisection::tests::observer_can_recover_from_eval_failure ... ok
[INFO] [stdout] test equation::bisection::tests::observer_can_stop_iteration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests twine_solve
[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] running `Command { std: "docker" "inspect" "a9c87b593a15235ac28658c692528805a42b6b77fbed3f5fb33dec8a676933df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9c87b593a15235ac28658c692528805a42b6b77fbed3f5fb33dec8a676933df", kill_on_drop: false }`
[INFO] [stdout] a9c87b593a15235ac28658c692528805a42b6b77fbed3f5fb33dec8a676933df