[INFO] crate binoxxo 0.1.8 is already in cache
[INFO] extracting crate binoxxo 0.1.8 into work/ex/beta-1.38-1/sources/1.37.0/reg/binoxxo/0.1.8
[INFO] extracting crate binoxxo 0.1.8 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/binoxxo/0.1.8
[INFO] validating manifest of binoxxo-0.1.8 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of binoxxo-0.1.8 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing binoxxo-0.1.8
[INFO] finished frobbing binoxxo-0.1.8
[INFO] frobbed toml for binoxxo-0.1.8 written to work/ex/beta-1.38-1/sources/1.37.0/reg/binoxxo/0.1.8/Cargo.toml
[INFO] started frobbing binoxxo-0.1.8
[INFO] finished frobbing binoxxo-0.1.8
[INFO] frobbed toml for binoxxo-0.1.8 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/binoxxo/0.1.8/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing binoxxo-0.1.8 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/binoxxo/0.1.8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] f13d7f569a76849544945e04d03165dd40cbf5cbf4ce728b1d1cb5d528d8f7ec
[INFO] running `"docker" "start" "-a" "f13d7f569a76849544945e04d03165dd40cbf5cbf4ce728b1d1cb5d528d8f7ec"`
[INFO] [stderr]    Compiling binoxxo v0.1.8 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/field.rs:112:17
[INFO] [stderr]     |
[INFO] [stderr] 112 |             let mut field;
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "f13d7f569a76849544945e04d03165dd40cbf5cbf4ce728b1d1cb5d528d8f7ec"`
[INFO] running `"docker" "rm" "-f" "f13d7f569a76849544945e04d03165dd40cbf5cbf4ce728b1d1cb5d528d8f7ec"`
[INFO] [stdout] f13d7f569a76849544945e04d03165dd40cbf5cbf4ce728b1d1cb5d528d8f7ec
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/binoxxo/0.1.8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 38a66711a2915d01f9121abac213f27bfd11753a71d071a9bb206337a2fd5f15
[INFO] running `"docker" "start" "-a" "38a66711a2915d01f9121abac213f27bfd11753a71d071a9bb206337a2fd5f15"`
[INFO] [stderr]    Compiling binoxxo v0.1.8 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/field.rs:112:17
[INFO] [stderr]     |
[INFO] [stderr] 112 |             let mut field;
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `"docker" "inspect" "38a66711a2915d01f9121abac213f27bfd11753a71d071a9bb206337a2fd5f15"`
[INFO] running `"docker" "rm" "-f" "38a66711a2915d01f9121abac213f27bfd11753a71d071a9bb206337a2fd5f15"`
[INFO] [stdout] 38a66711a2915d01f9121abac213f27bfd11753a71d071a9bb206337a2fd5f15
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/binoxxo/0.1.8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] eb1486b7e3c1cbf75d2c2546338fdd0ec5c99be347f5fbbeeb15acb5df2bf33a
[INFO] running `"docker" "start" "-a" "eb1486b7e3c1cbf75d2c2546338fdd0ec5c99be347f5fbbeeb15acb5df2bf33a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/binoxxo-8bd0f3951da9903d
[INFO] [stdout] 
[INFO] [stdout] running 55 tests
[INFO] [stdout] test bruteforce::possible_move::tests::move_not_possible_for_set_field ... ok
[INFO] [stdout] test bruteforce::possible_move::tests::next_to_a_single_x_are_two_moves_possible ... ok
[INFO] [stdout] test bruteforce::possible_move::tests::get_possible_one_moves_for_all_empty_fields ... ok
[INFO] [stdout] test bruteforce::possible_move::tests::get_possible_moves_for_all_empty_fields ... ok
[INFO] [stdout] test bruteforce::possible_move::tests::get_possible_moves_does_not_change_board ... ok
[INFO] [stdout] test bruteforce::choose_move::tests::select_random_two_move_if_list_of_possible_moves_contains_only_two_moves ... ok
[INFO] [stdout] test bruteforce::possible_move::tests::only_option_x_possible ... ok
[INFO] [stdout] test bruteforce::possible_move::tests::two_options_for_empty_board ... ok
[INFO] [stdout] test bruteforce::possible_move::tests::only_option_o_possible ... ok
[INFO] [stdout] test bruteforce::rules::tests::calc_column_siganture_of_empty_column ... ok
[INFO] [stdout] test bruteforce::choose_move::tests::select_random_one_move_if_list_of_possible_moves_contains_one_move ... ok
[INFO] [stdout] test bruteforce::choose_move::tests::select_none_if_one_impossible_move_in_list ... ok
[INFO] [stdout] test bruteforce::rules::tests::calc_column_siganture_of_non_empty_column ... ok
[INFO] [stdout] test bruteforce::rules::tests::calc_row_siganture_of_empty_row ... ok
[INFO] [stdout] test bruteforce::rules::tests::calc_row_siganture_of_non_empty_row ... ok
[INFO] [stdout] test bruteforce::rules::tests::double_column ... ok
[INFO] [stdout] test bruteforce::rules::tests::empty_column_is_unique ... ok
[INFO] [stdout] test bruteforce::rules::tests::is_board_full_with_full_board ... ok
[INFO] [stdout] test bruteforce::rules::tests::is_board_valid_for_incomplete_board ... ok
[INFO] [stdout] test bruteforce::rules::tests::is_board_full_with_none_full_board ... ok
[INFO] [stdout] test bruteforce::rules::tests::is_board_invalid_for_invalid_board ... ok
[INFO] [stdout] test bruteforce::rules::tests::is_board_valid_for_valid_board ... ok
[INFO] [stdout] test bruteforce::rules::tests::more_then_two_o_in_a_row ... ok
[INFO] [stdout] test bruteforce::rules::tests::not_more_than_half_the_field_per_row_valid ... ok
[INFO] [stdout] test bruteforce::rules::tests::non_unique_columns ... ok
[INFO] [stdout] test bruteforce::rules::tests::non_unique_rows ... ok
[INFO] [stdout] test bruteforce::rules::tests::not_more_than_half_the_field_per_column_invalid ... ok
[INFO] [stdout] test bruteforce::rules::tests::regression_board_02 ... ok
[INFO] [stdout] test bruteforce::rules::tests::not_more_than_half_the_field_per_column_valid ... ok
[INFO] [stdout] test bruteforce::rules::tests::unbalanced_columns ... ok
[INFO] [stdout] test bruteforce::rules::tests::unbalanced_rows ... ok
[INFO] [stdout] test bruteforce::rules::tests::not_more_than_half_the_field_per_row_invalid ... ok
[INFO] [stdout] test bruteforce::rules::tests::regression_board_01 ... ok
[INFO] [stdout] test bruteforce::rules::tests::unique_column ... ok
[INFO] [stdout] test bruteforce::rules::tests::unique_row ... ok
[INFO] [stdout] test bruteforce::rules::tests::x_with_surounding_oo_is_valid ... ok
[INFO] [stdout] test bruteforce::rules::tests::x_with_adjacent_oo_is_valid ... ok
[INFO] [stdout] test bruteforce::rules::tests::x_with_adjacent_xx_is_invalid_vertically ... ok
[INFO] [stdout] test bruteforce::rules::tests::valid_move ... ok
[INFO] [stdout] test field::tests::board_set_get ... ok
[INFO] [stdout] test field::tests::board_new ... ok
[INFO] [stdout] test field::tests::board_set ... ok
[INFO] [stdout] test field::tests::board_get_new ... ok
[INFO] [stdout] test bruteforce::rules::tests::x_with_adjacent_xx_is_invalid_horizontally ... ok
[INFO] [stdout] test field::tests::board_to_string ... ok
[INFO] [stdout] test field::tests::clear_field ... ok
[INFO] [stdout] test field::tests::build_from_str ... ok
[INFO] [stdout] test field::tests::board_set_x_oob ... ok
[INFO] [stdout] test field::tests::board_get_x_oob ... ok
[INFO] [stdout] test field::tests::board_get_y_oob ... ok
[INFO] [stdout] test field::tests::board_set_empty ... ok
[INFO] [stdout] test field::tests::board_set_y_oob ... ok
[INFO] [stdout] test field::tests::clear_already_empty_field_panics ... ok
[INFO] [stdout] test field::tests::clear_x_oob_panics ... ok
[INFO] [stdout] test field::tests::clear_y_oob_panics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 55 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests binoxxo
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs -  (line 17) ... ok
[INFO] [stdout] test src/lib.rs -  (line 60) ... ok
[INFO] [stdout] test src/lib.rs -  (line 33) ... ok
[INFO] [stdout] test src/lib.rs -  (line 49) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "eb1486b7e3c1cbf75d2c2546338fdd0ec5c99be347f5fbbeeb15acb5df2bf33a"`
[INFO] running `"docker" "rm" "-f" "eb1486b7e3c1cbf75d2c2546338fdd0ec5c99be347f5fbbeeb15acb5df2bf33a"`
[INFO] [stdout] eb1486b7e3c1cbf75d2c2546338fdd0ec5c99be347f5fbbeeb15acb5df2bf33a