[INFO] cloning repository https://github.com/valdemarceccon/connect4_minmax_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/valdemarceccon/connect4_minmax_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaldemarceccon%2Fconnect4_minmax_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaldemarceccon%2Fconnect4_minmax_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fd2cc2dd9bb08f9ee2d908152d1a4aee2eb0201b
[INFO] testing valdemarceccon/connect4_minmax_rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaldemarceccon%2Fconnect4_minmax_rust" "/workspace/builds/worker-93/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-93/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/valdemarceccon/connect4_minmax_rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/valdemarceccon/connect4_minmax_rust
[INFO] finished tweaking git repo https://github.com/valdemarceccon/connect4_minmax_rust
[INFO] tweaked toml for git repo https://github.com/valdemarceccon/connect4_minmax_rust written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] crate git repo https://github.com/valdemarceccon/connect4_minmax_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 328cc037781c9c2ce8111799a4c87ba34c668427e9fd73f6ba2acc0ff46a9f00
[INFO] running `Command { std: "docker" "start" "-a" "328cc037781c9c2ce8111799a4c87ba34c668427e9fd73f6ba2acc0ff46a9f00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "328cc037781c9c2ce8111799a4c87ba34c668427e9fd73f6ba2acc0ff46a9f00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "328cc037781c9c2ce8111799a4c87ba34c668427e9fd73f6ba2acc0ff46a9f00", kill_on_drop: false }`
[INFO] [stdout] 328cc037781c9c2ce8111799a4c87ba34c668427e9fd73f6ba2acc0ff46a9f00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7c293712798648eb502b6c0b768ee5b42d29eae74aa3c3a5980d6d6bd9ee75a
[INFO] running `Command { std: "docker" "start" "-a" "c7c293712798648eb502b6c0b768ee5b42d29eae74aa3c3a5980d6d6bd9ee75a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling connect4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.13s
[INFO] running `Command { std: "docker" "inspect" "c7c293712798648eb502b6c0b768ee5b42d29eae74aa3c3a5980d6d6bd9ee75a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7c293712798648eb502b6c0b768ee5b42d29eae74aa3c3a5980d6d6bd9ee75a", kill_on_drop: false }`
[INFO] [stdout] c7c293712798648eb502b6c0b768ee5b42d29eae74aa3c3a5980d6d6bd9ee75a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3073861cdc80580f289f8a72e7dea8ed0a77cc397a9696bdaf2ae3d8980888f
[INFO] running `Command { std: "docker" "start" "-a" "c3073861cdc80580f289f8a72e7dea8ed0a77cc397a9696bdaf2ae3d8980888f", kill_on_drop: false }`
[INFO] [stderr]    Compiling connect4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "c3073861cdc80580f289f8a72e7dea8ed0a77cc397a9696bdaf2ae3d8980888f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3073861cdc80580f289f8a72e7dea8ed0a77cc397a9696bdaf2ae3d8980888f", kill_on_drop: false }`
[INFO] [stdout] c3073861cdc80580f289f8a72e7dea8ed0a77cc397a9696bdaf2ae3d8980888f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 48fc1e6ee9d53847d217771152f58652022b34c00ae23c87afc988b9330bee27
[INFO] running `Command { std: "docker" "start" "-a" "48fc1e6ee9d53847d217771152f58652022b34c00ae23c87afc988b9330bee27", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/connect4_core-aa9fbd8234aa1603)
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/connect4_cli-c18c3cecbc0443a8)
[INFO] [stdout] test board::test::board_full_counter_is_full_when_board_is_full ... ok
[INFO] [stdout] test board::test::find_row_when_searching_for_empty_col_in_a_empty_col ... ok
[INFO] [stdout] test board::test::create_new_instance ... ok
[INFO] [stdout] test board::test::find_row_when_searching_for_full_col_in_a_empty_col ... ok
[INFO] [stdout] test board::test::find_row_when_searching_for_non_empty_col_in_a_empty_col ... ok
[INFO] [stdout] test board::test::get_piece_at ... ok
[INFO] [stdout] test board::test::play_not_empty_column ... ok
[INFO] [stdout] test board::test::play_out_of_bounds_results_in_error ... ok
[INFO] [stdout] test board::test::test_last_move ... ok
[INFO] [stdout] test board_iterators::test::test_col_iterator ... ok
[INFO] [stdout] test board_iterators::test::test_diagonal_iterator ... ok
[INFO] [stdout] test game::test::does_not_change_state_when_some_error_occours ... ok
[INFO] [stdout] test board_iterators::test::test_row_iterator ... ok
[INFO] [stdout] test game::test::game_construction ... ok
[INFO] [stdout] test game::test::game_finish_in_tie ... ok
[INFO] [stdout] test validator::test::there_is_a_winner_in_a_colunm ... ok
[INFO] [stdout] test game::test::toggle_player_on_play ... ok
[INFO] [stdout] test validator::test::there_is_a_winner_in_a_row ... ok
[INFO] [stdout] test validator::test::there_is_a_winner_in_the_main_diagonal ... ok
[INFO] [stdout] test validator::test::there_is_a_winner_in_the_secundary_diagonal ... ok
[INFO] [stdout] test validator::test::there_is_no_winner ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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] [stderr]    Doc-tests connect4_core
[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" "48fc1e6ee9d53847d217771152f58652022b34c00ae23c87afc988b9330bee27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48fc1e6ee9d53847d217771152f58652022b34c00ae23c87afc988b9330bee27", kill_on_drop: false }`
[INFO] [stdout] 48fc1e6ee9d53847d217771152f58652022b34c00ae23c87afc988b9330bee27