[INFO] fetching crate play-2048 1.0.0...
[INFO] testing play-2048-1.0.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate play-2048 1.0.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate play-2048 1.0.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate play-2048 1.0.0
[INFO] finished tweaking crates.io crate play-2048 1.0.0
[INFO] tweaked toml for crates.io crate play-2048 1.0.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate play-2048 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9df2e39df2d3e6cd85d0a6467fb150aa09034a69d95916d6dd79c3e40f787848
[INFO] running `Command { std: "docker" "start" "-a" "9df2e39df2d3e6cd85d0a6467fb150aa09034a69d95916d6dd79c3e40f787848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9df2e39df2d3e6cd85d0a6467fb150aa09034a69d95916d6dd79c3e40f787848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9df2e39df2d3e6cd85d0a6467fb150aa09034a69d95916d6dd79c3e40f787848", kill_on_drop: false }`
[INFO] [stdout] 9df2e39df2d3e6cd85d0a6467fb150aa09034a69d95916d6dd79c3e40f787848
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1035ea87a44f498cb40e0af4f26c2e2240475aa1ede515d01760c54a184e8b3
[INFO] running `Command { std: "docker" "start" "-a" "f1035ea87a44f498cb40e0af4f26c2e2240475aa1ede515d01760c54a184e8b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling play-2048 v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.91s
[INFO] running `Command { std: "docker" "inspect" "f1035ea87a44f498cb40e0af4f26c2e2240475aa1ede515d01760c54a184e8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1035ea87a44f498cb40e0af4f26c2e2240475aa1ede515d01760c54a184e8b3", kill_on_drop: false }`
[INFO] [stdout] f1035ea87a44f498cb40e0af4f26c2e2240475aa1ede515d01760c54a184e8b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cbffa489f326945c7a46d3ecd49e173549d804c6efbdad68bdf5a46edf64c33
[INFO] running `Command { std: "docker" "start" "-a" "1cbffa489f326945c7a46d3ecd49e173549d804c6efbdad68bdf5a46edf64c33", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling oorandom v11.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling serde_json v1.0.51
[INFO] [stderr]    Compiling bstr v0.2.12
[INFO] [stderr]    Compiling plotters v0.2.12
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling criterion-plot v0.4.2
[INFO] [stderr]    Compiling tinytemplate v1.0.4
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling criterion v0.3.2
[INFO] [stderr]    Compiling play-2048 v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 22.79s
[INFO] running `Command { std: "docker" "inspect" "1cbffa489f326945c7a46d3ecd49e173549d804c6efbdad68bdf5a46edf64c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cbffa489f326945c7a46d3ecd49e173549d804c6efbdad68bdf5a46edf64c33", kill_on_drop: false }`
[INFO] [stdout] 1cbffa489f326945c7a46d3ecd49e173549d804c6efbdad68bdf5a46edf64c33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3fbccd21a6281f0c55abcdd4239cb07dd1305dc699ad0fe24fc6cef4b43ec8f2
[INFO] running `Command { std: "docker" "start" "-a" "3fbccd21a6281f0c55abcdd4239cb07dd1305dc699ad0fe24fc6cef4b43ec8f2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/play_2048-d8d1eb75c9646793)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test board::tests::should_count_distinct_tiles ... ok
[INFO] [stdout] test board::tests::should_convert_vec_to_board ... ok
[INFO] [stdout] test board::tests::should_count_empty_tiles ... ok
[INFO] [stdout] test board::tests::should_display_board_for_debug ... ok
[INFO] [stdout] test board::tests::should_get_columns ... ok
[INFO] [stdout] test board::tests::should_get_empty_tiles ... ok
[INFO] [stdout] test board::tests::should_get_exponent_value ... ok
[INFO] [stdout] test board::tests::should_display_board ... ok
[INFO] [stdout] test board::tests::should_get_max_value ... ok
[INFO] [stdout] test board::tests::should_get_rows ... ok
[INFO] [stdout] test board::tests::should_get_value ... ok
[INFO] [stdout] test board::tests::should_iterate_over_exponents ... ok
[INFO] [stdout] test board::tests::should_set_value ... ok
[INFO] [stdout] test board::tests::should_use_binary_representation ... ok
[INFO] [stdout] test board::tests::should_set_value_by_exponent ... ok
[INFO] [stdout] test evaluators::tests::test_alignment_evaluator ... ok
[INFO] [stdout] test evaluators::tests::test_combined_evaluator ... ok
[INFO] [stdout] test evaluators::tests::test_empty_tile_evaluator ... ok
[INFO] [stdout] test evaluators::tests::test_monotonicity_evaluator ... ok
[INFO] [stdout] test utils::tests::should_get_left_move ... ok
[INFO] [stdout] test utils::tests::should_get_right_move ... ok
[INFO] [stdout] test utils::tests::should_invert_row ... ok
[INFO] [stdout] test utils::tests::should_set_value_in_row ... ok
[INFO] [stdout] test board::tests::should_move_left ... ok
[INFO] [stdout] test board::tests::should_move_up ... ok
[INFO] [stdout] test evaluators::tests::test_precomputed_inversion_evaluator ... ok
[INFO] [stdout] test board::tests::should_move_down ... ok
[INFO] [stdout] test board::tests::should_move_right ... ok
[INFO] [stdout] test board::tests::should_move_with_high_values ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/play_2048-833e154f69e20566)
[INFO] [stdout] test solver::tests::test_next_best_move ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test board::tests::should_count_distinct_tiles ... ok
[INFO] [stdout] test board::tests::should_convert_vec_to_board ... ok
[INFO] [stdout] test board::tests::should_count_empty_tiles ... ok
[INFO] [stdout] test board::tests::should_get_columns ... ok
[INFO] [stdout] test board::tests::should_display_board_for_debug ... ok
[INFO] [stdout] test board::tests::should_display_board ... ok
[INFO] [stdout] test board::tests::should_get_empty_tiles ... ok
[INFO] [stdout] test board::tests::should_get_exponent_value ... ok
[INFO] [stdout] test board::tests::should_get_max_value ... ok
[INFO] [stdout] test board::tests::should_get_rows ... ok
[INFO] [stdout] test board::tests::should_get_value ... ok
[INFO] [stdout] test board::tests::should_iterate_over_exponents ... ok
[INFO] [stdout] test board::tests::should_set_value_by_exponent ... ok
[INFO] [stdout] test board::tests::should_set_value ... ok
[INFO] [stdout] test board::tests::should_use_binary_representation ... ok
[INFO] [stdout] test evaluators::tests::test_alignment_evaluator ... ok
[INFO] [stdout] test evaluators::tests::test_combined_evaluator ... ok
[INFO] [stdout] test evaluators::tests::test_empty_tile_evaluator ... ok
[INFO] [stdout] test evaluators::tests::test_monotonicity_evaluator ... ok
[INFO] [stdout] test utils::tests::should_get_left_move ... ok
[INFO] [stdout] test utils::tests::should_get_right_move ... ok
[INFO] [stdout] test utils::tests::should_invert_row ... ok
[INFO] [stdout] test utils::tests::should_set_value_in_row ... ok
[INFO] [stdout] test board::tests::should_move_left ... ok
[INFO] [stdout] test board::tests::should_move_up ... ok
[INFO] [stdout] test evaluators::tests::test_precomputed_inversion_evaluator ... ok
[INFO] [stdout] test board::tests::should_move_with_high_values ... ok
[INFO] [stdout] test board::tests::should_move_down ... ok
[INFO] [stdout] test board::tests::should_move_right ... ok
[INFO] [stdout] test solver::tests::test_next_best_move ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests play-2048
[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" "3fbccd21a6281f0c55abcdd4239cb07dd1305dc699ad0fe24fc6cef4b43ec8f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fbccd21a6281f0c55abcdd4239cb07dd1305dc699ad0fe24fc6cef4b43ec8f2", kill_on_drop: false }`
[INFO] [stdout] 3fbccd21a6281f0c55abcdd4239cb07dd1305dc699ad0fe24fc6cef4b43ec8f2