[INFO] fetching crate play-2048 1.0.0... [INFO] testing play-2048-1.0.0 against 1.90.0 for beta-1.91-3 [INFO] extracting crate play-2048 1.0.0 into /workspace/builds/worker-7-tc1/source [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-7-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate play-2048 1.0.0 on toolchain 1.90.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate play-2048 1.0.0 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded termion v1.5.5 [INFO] [stderr] Downloaded tinytemplate v1.0.4 [INFO] [stderr] Downloaded redox_termios v0.1.1 [INFO] [stderr] Downloaded serde v1.0.106 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.60 [INFO] [stderr] Downloaded hermit-abi v0.1.12 [INFO] [stderr] Downloaded criterion-plot v0.4.2 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.60 [INFO] [stderr] Downloaded cast v0.2.3 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.60 [INFO] [stderr] Downloaded serde_derive v1.0.106 [INFO] [stderr] Downloaded rayon-core v1.7.0 [INFO] [stderr] Downloaded rayon v1.3.0 [INFO] [stderr] Downloaded js-sys v0.3.37 [INFO] [stderr] Downloaded regex-automata v0.1.9 [INFO] [stderr] Downloaded bumpalo v3.2.1 [INFO] [stderr] Downloaded wasm-bindgen v0.2.60 [INFO] [stderr] Downloaded criterion v0.3.2 [INFO] [stderr] Downloaded oorandom v11.1.0 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.60 [INFO] [stderr] Downloaded syn v1.0.18 [INFO] [stderr] Downloaded regex v1.3.7 [INFO] [stderr] Downloaded libc v0.2.69 [INFO] [stderr] Downloaded crossbeam-deque v0.7.3 [INFO] [stderr] Downloaded serde_json v1.0.51 [INFO] [stderr] Downloaded crossbeam-queue v0.2.1 [INFO] [stderr] Downloaded ryu v1.0.4 [INFO] [stderr] Downloaded bstr v0.2.12 [INFO] [stderr] Downloaded regex-syntax v0.6.17 [INFO] [stderr] Downloaded numtoa v0.1.0 [INFO] [stderr] Downloaded web-sys v0.3.37 [INFO] [stderr] Downloaded csv v1.1.3 [INFO] [stderr] Downloaded plotters v0.2.12 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] be9d44d6f3967be57e97c7f3de225597b9fe454df45bac1af9bce9bf3ab4d533 [INFO] running `Command { std: "docker" "start" "-a" "be9d44d6f3967be57e97c7f3de225597b9fe454df45bac1af9bce9bf3ab4d533", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "be9d44d6f3967be57e97c7f3de225597b9fe454df45bac1af9bce9bf3ab4d533", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "be9d44d6f3967be57e97c7f3de225597b9fe454df45bac1af9bce9bf3ab4d533", kill_on_drop: false }` [INFO] [stdout] be9d44d6f3967be57e97c7f3de225597b9fe454df45bac1af9bce9bf3ab4d533 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e3d1caff6cf3496c27de5583c5a7e7a53b9c432fd898c0aa5cc59351ef352b8a [INFO] running `Command { std: "docker" "start" "-a" "e3d1caff6cf3496c27de5583c5a7e7a53b9c432fd898c0aa5cc59351ef352b8a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling unicode-width v0.1.7 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling numtoa v0.1.0 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling textwrap v0.11.0 [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` profile [unoptimized + debuginfo] target(s) in 4.74s [INFO] running `Command { std: "docker" "inspect" "e3d1caff6cf3496c27de5583c5a7e7a53b9c432fd898c0aa5cc59351ef352b8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e3d1caff6cf3496c27de5583c5a7e7a53b9c432fd898c0aa5cc59351ef352b8a", kill_on_drop: false }` [INFO] [stdout] e3d1caff6cf3496c27de5583c5a7e7a53b9c432fd898c0aa5cc59351ef352b8a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 62e5d089b378b6fc59b96f7b824da98c58dd58df2254a7ef83c8de36a6e9fcc8 [INFO] running `Command { std: "docker" "start" "-a" "62e5d089b378b6fc59b96f7b824da98c58dd58df2254a7ef83c8de36a6e9fcc8", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling ryu v1.0.4 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling rayon-core v1.7.0 [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling itoa v0.4.5 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling regex-syntax v0.6.17 [INFO] [stderr] Compiling walkdir v2.3.1 [INFO] [stderr] Compiling oorandom v11.1.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling regex-automata v0.1.9 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling criterion-plot v0.4.2 [INFO] [stderr] Compiling plotters v0.2.12 [INFO] [stderr] Compiling crossbeam-queue v0.2.1 [INFO] [stderr] Compiling regex v1.3.7 [INFO] [stderr] Compiling crossbeam-deque v0.7.3 [INFO] [stderr] Compiling rayon v1.3.0 [INFO] [stderr] Compiling bstr v0.2.12 [INFO] [stderr] Compiling serde_json v1.0.51 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling csv v1.1.3 [INFO] [stderr] Compiling tinytemplate v1.0.4 [INFO] [stderr] Compiling criterion v0.3.2 [INFO] [stderr] Compiling play-2048 v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `must_use` that must be used [INFO] [stdout] --> src/board.rs:830:9 [INFO] [stdout] | [INFO] [stdout] 830 | format!("{}", board); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 830 | let _ = format!("{}", board); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `must_use` that must be used [INFO] [stdout] --> src/board.rs:830:9 [INFO] [stdout] | [INFO] [stdout] 830 | format!("{}", board); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 830 | let _ = format!("{}", board); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 14.23s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.2 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "62e5d089b378b6fc59b96f7b824da98c58dd58df2254a7ef83c8de36a6e9fcc8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "62e5d089b378b6fc59b96f7b824da98c58dd58df2254a7ef83c8de36a6e9fcc8", kill_on_drop: false }` [INFO] [stdout] 62e5d089b378b6fc59b96f7b824da98c58dd58df2254a7ef83c8de36a6e9fcc8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 06d0c87374f9dd85704dddb12e4a8c006ec933012aaeaedb3abb153d5e5922ed [INFO] running `Command { std: "docker" "start" "-a" "06d0c87374f9dd85704dddb12e4a8c006ec933012aaeaedb3abb153d5e5922ed", kill_on_drop: false }` [INFO] [stderr] warning: unused return value of `must_use` that must be used [INFO] [stderr] --> src/board.rs:830:9 [INFO] [stderr] | [INFO] [stderr] 830 | format!("{}", board); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 830 | let _ = format!("{}", board); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `play-2048` (bin "play-2048" test) generated 1 warning [INFO] [stderr] warning: `play-2048` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.2 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/play_2048-7ca953c8003868f8) [INFO] [stdout] [INFO] [stdout] running 30 tests [INFO] [stdout] test board::tests::should_convert_vec_to_board ... ok [INFO] [stdout] test board::tests::should_count_distinct_tiles ... ok [INFO] [stdout] test board::tests::should_count_empty_tiles ... ok [INFO] [stdout] test board::tests::should_display_board ... 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_get_rows ... ok [INFO] [stdout] test board::tests::should_iterate_over_exponents ... ok [INFO] [stdout] test board::tests::should_get_max_value ... ok [INFO] [stdout] test board::tests::should_get_value ... ok [INFO] [stdout] test board::tests::should_set_value_by_exponent ... ok [INFO] [stdout] test evaluators::tests::test_combined_evaluator ... ok [INFO] [stdout] test utils::tests::should_get_left_move ... ok [INFO] [stdout] test evaluators::tests::test_empty_tile_evaluator ... ok [INFO] [stdout] test board::tests::should_use_binary_representation ... ok [INFO] [stdout] test evaluators::tests::test_monotonicity_evaluator ... ok [INFO] [stdout] test board::tests::should_set_value ... 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 evaluators::tests::test_alignment_evaluator ... 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] [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 0.05s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/play_2048-4da882bc329bd047) [INFO] [stdout] [INFO] [stdout] running 30 tests [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_count_distinct_tiles ... ok [INFO] [stdout] test board::tests::should_display_board ... ok [INFO] [stdout] test board::tests::should_display_board_for_debug ... ok [INFO] [stdout] test board::tests::should_get_exponent_value ... ok [INFO] [stdout] test board::tests::should_get_empty_tiles ... ok [INFO] [stdout] test board::tests::should_get_columns ... 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_iterate_over_exponents ... ok [INFO] [stdout] test board::tests::should_get_value ... 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_combined_evaluator ... ok [INFO] [stdout] test board::tests::should_set_value_by_exponent ... ok [INFO] [stdout] test evaluators::tests::test_monotonicity_evaluator ... ok [INFO] [stdout] test evaluators::tests::test_alignment_evaluator ... ok [INFO] [stdout] test evaluators::tests::test_empty_tile_evaluator ... ok [INFO] [stdout] test utils::tests::should_invert_row ... ok [INFO] [stdout] test utils::tests::should_get_right_move ... ok [INFO] [stdout] test utils::tests::should_get_left_move ... ok [INFO] [stdout] test utils::tests::should_set_value_in_row ... ok [INFO] [stdout] test evaluators::tests::test_precomputed_inversion_evaluator ... ok [INFO] [stdout] test board::tests::should_move_left ... ok [INFO] [stdout] test board::tests::should_move_up ... ok [INFO] [stdout] test board::tests::should_move_right ... ok [INFO] [stdout] test board::tests::should_move_down ... ok [INFO] [stdout] test board::tests::should_move_with_high_values ... 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" "06d0c87374f9dd85704dddb12e4a8c006ec933012aaeaedb3abb153d5e5922ed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "06d0c87374f9dd85704dddb12e4a8c006ec933012aaeaedb3abb153d5e5922ed", kill_on_drop: false }` [INFO] [stdout] 06d0c87374f9dd85704dddb12e4a8c006ec933012aaeaedb3abb153d5e5922ed