[INFO] cloning repository https://github.com/kvoloboi/15-puzzle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kvoloboi/15-puzzle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvoloboi%2F15-puzzle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvoloboi%2F15-puzzle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3869a57594b98a2d65b14b005029a1025fe4154
[INFO] testing kvoloboi/15-puzzle against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvoloboi%2F15-puzzle" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kvoloboi/15-puzzle
[INFO] finished tweaking git repo https://github.com/kvoloboi/15-puzzle
[INFO] tweaked toml for git repo https://github.com/kvoloboi/15-puzzle written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kvoloboi/15-puzzle 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 git repo https://github.com/kvoloboi/15-puzzle 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vtparse v0.6.2
[INFO] [stderr]   Downloaded wezterm-dynamic-derive v0.1.1
[INFO] [stderr]   Downloaded mac_address v1.1.8
[INFO] [stderr]   Downloaded wezterm-blob-leases v0.1.1
[INFO] [stderr]   Downloaded wezterm-dynamic v0.2.1
[INFO] [stderr]   Downloaded line-clipping v0.3.5
[INFO] [stderr]   Downloaded wezterm-color-types v0.3.0
[INFO] [stderr]   Downloaded instability v0.3.11
[INFO] [stderr]   Downloaded strum_macros v0.27.2
[INFO] [stderr]   Downloaded ratatui-macros v0.7.0
[INFO] [stderr]   Downloaded strum v0.27.2
[INFO] [stderr]   Downloaded pest_generator v2.8.5
[INFO] [stderr]   Downloaded pest_meta v2.8.5
[INFO] [stderr]   Downloaded ratatui-crossterm v0.1.0
[INFO] [stderr]   Downloaded kasuari v0.4.11
[INFO] [stderr]   Downloaded wezterm-input-types v0.1.0
[INFO] [stderr]   Downloaded ratatui-termwiz v0.1.0
[INFO] [stderr]   Downloaded unicode-truncate v2.0.1
[INFO] [stderr]   Downloaded wezterm-bidi v0.2.3
[INFO] [stderr]   Downloaded pest_derive v2.8.5
[INFO] [stderr]   Downloaded fancy-regex v0.11.0
[INFO] [stderr]   Downloaded finl_unicode v1.4.0
[INFO] [stderr]   Downloaded ratatui-core v0.1.0
[INFO] [stderr]   Downloaded pest v2.8.5
[INFO] [stderr]   Downloaded ratatui v0.30.0
[INFO] [stderr]   Downloaded ratatui-widgets v0.3.0
[INFO] [stderr]   Downloaded termwiz v0.23.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f70f1d96a958ac69de8d5982f723407150d9e44ef2c6f313c6cc5e84a0dc6eb3
[INFO] running `Command { std: "docker" "start" "-a" "f70f1d96a958ac69de8d5982f723407150d9e44ef2c6f313c6cc5e84a0dc6eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f70f1d96a958ac69de8d5982f723407150d9e44ef2c6f313c6cc5e84a0dc6eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f70f1d96a958ac69de8d5982f723407150d9e44ef2c6f313c6cc5e84a0dc6eb3", kill_on_drop: false }`
[INFO] [stdout] f70f1d96a958ac69de8d5982f723407150d9e44ef2c6f313c6cc5e84a0dc6eb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] eeaf68bce784eddd68f4ce2a63010b3a785b00a4d37e05f4c70e2eb6482c6bbd
[INFO] running `Command { std: "docker" "start" "-a" "eeaf68bce784eddd68f4ce2a63010b3a785b00a4d37e05f4c70e2eb6482c6bbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling foldhash v0.2.0
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling instability v0.3.11
[INFO] [stderr]    Compiling unicode-width v0.2.2
[INFO] [stderr]    Compiling ryu v1.0.22
[INFO] [stderr]    Compiling indoc v2.0.7
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling zerocopy v0.8.34
[INFO] [stderr]    Compiling num-conv v0.2.0
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling num_threads v0.1.7
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling time-core v0.1.8
[INFO] [stderr]    Compiling litrs v1.0.0
[INFO] [stderr]    Compiling convert_case v0.10.0
[INFO] [stderr]    Compiling line-clipping v0.3.5
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling castaway v0.2.4
[INFO] [stderr]    Compiling compact_str v0.9.0
[INFO] [stderr]    Compiling lru v0.16.3
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling document-features v0.2.12
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling time v0.3.46
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling unicode-truncate v2.0.1
[INFO] [stderr]    Compiling signal-hook-mio v0.2.5
[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 darling_core v0.23.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling strum_macros v0.27.2
[INFO] [stderr]    Compiling derive_more-impl v2.1.1
[INFO] [stderr]    Compiling derive_more v2.1.1
[INFO] [stderr]    Compiling crossterm v0.29.0
[INFO] [stderr]    Compiling strum v0.27.2
[INFO] [stderr]    Compiling kasuari v0.4.11
[INFO] [stderr]    Compiling darling_macro v0.23.0
[INFO] [stderr]    Compiling ratatui-core v0.1.0
[INFO] [stderr]    Compiling darling v0.23.0
[INFO] [stderr]    Compiling ratatui-widgets v0.3.0
[INFO] [stderr]    Compiling ratatui-crossterm v0.1.0
[INFO] [stderr]    Compiling ratatui-macros v0.7.0
[INFO] [stderr]    Compiling ratatui v0.30.0
[INFO] [stderr]    Compiling gof v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.84s
[INFO] running `Command { std: "docker" "inspect" "eeaf68bce784eddd68f4ce2a63010b3a785b00a4d37e05f4c70e2eb6482c6bbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eeaf68bce784eddd68f4ce2a63010b3a785b00a4d37e05f4c70e2eb6482c6bbd", kill_on_drop: false }`
[INFO] [stdout] eeaf68bce784eddd68f4ce2a63010b3a785b00a4d37e05f4c70e2eb6482c6bbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 243baabf5ed5364ed8f68268b76ecd579e0706a237a907b39414f49e10ec724f
[INFO] running `Command { std: "docker" "start" "-a" "243baabf5ed5364ed8f68268b76ecd579e0706a237a907b39414f49e10ec724f", kill_on_drop: false }`
[INFO] [stderr]    Compiling gof v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "243baabf5ed5364ed8f68268b76ecd579e0706a237a907b39414f49e10ec724f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "243baabf5ed5364ed8f68268b76ecd579e0706a237a907b39414f49e10ec724f", kill_on_drop: false }`
[INFO] [stdout] 243baabf5ed5364ed8f68268b76ecd579e0706a237a907b39414f49e10ec724f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 8b2aa31a07c04a4f47e8cb064d2e1a3ce0fe67d427d84c06f5816a23e94794bb
[INFO] running `Command { std: "docker" "start" "-a" "8b2aa31a07c04a4f47e8cb064d2e1a3ce0fe67d427d84c06f5816a23e94794bb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/gof-628ff3045df617dc)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test engine::matrix::tests::from_flat_size_mismatch ... ok
[INFO] [stdout] test engine::matrix::tests::get_out_of_bounds ... ok
[INFO] [stdout] test engine::matrix::tests::swap_in_bounds ... ok
[INFO] [stdout] test engine::matrix::tests::get_in_bounds ... ok
[INFO] [stdout] test engine::matrix::tests::from_flat_success ... ok
[INFO] [stdout] test engine::matrix::tests::swap_out_of_bounds ... ok
[INFO] [stdout] test engine::tests::flip_parity_makes_unsolvable_solvable ... ok
[INFO] [stdout] test engine::tests::solved_3x3_is_solvable ... ok
[INFO] [stdout] test engine::tests::solved_4x4_is_solvable ... ok
[INFO] [stdout] test engine::tests::slide_only_adjacent_into_space ... ok
[INFO] [stdout] test engine::tests::tile_statuses_are_correct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8b2aa31a07c04a4f47e8cb064d2e1a3ce0fe67d427d84c06f5816a23e94794bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b2aa31a07c04a4f47e8cb064d2e1a3ce0fe67d427d84c06f5816a23e94794bb", kill_on_drop: false }`
[INFO] [stdout] 8b2aa31a07c04a4f47e8cb064d2e1a3ce0fe67d427d84c06f5816a23e94794bb