[INFO] cloning repository https://github.com/kgtkr/othello
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kgtkr/othello" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkgtkr%2Fothello", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkgtkr%2Fothello'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98701536d5c8700feaae439a78d0c4d6a7c0425f
[INFO] testing kgtkr/othello against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkgtkr%2Fothello" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kgtkr/othello on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kgtkr/othello
[INFO] finished tweaking git repo https://github.com/kgtkr/othello
[INFO] tweaked toml for git repo https://github.com/kgtkr/othello written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/kgtkr/othello already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d801b259e0e6190d07dd722f08424d6199d6f6cfc1bba650449725217fcf8b0d
[INFO] running `Command { std: "docker" "start" "-a" "d801b259e0e6190d07dd722f08424d6199d6f6cfc1bba650449725217fcf8b0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d801b259e0e6190d07dd722f08424d6199d6f6cfc1bba650449725217fcf8b0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d801b259e0e6190d07dd722f08424d6199d6f6cfc1bba650449725217fcf8b0d", kill_on_drop: false }`
[INFO] [stdout] d801b259e0e6190d07dd722f08424d6199d6f6cfc1bba650449725217fcf8b0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 10c4441f58f00c1e505533c3d6221d1d51ad0d00c0714b9b9b60f81bf21567bc
[INFO] running `Command { std: "docker" "start" "-a" "10c4441f58f00c1e505533c3d6221d1d51ad0d00c0714b9b9b60f81bf21567bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling othello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Black`
[INFO] [stdout]  --> src/game.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 3 |   Black,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `While`
[INFO] [stdout]  --> src/game.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   While,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Cell`
[INFO] [stdout]  --> src/game.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | type Cell = Option<Piece>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Board`
[INFO] [stdout]  --> src/game.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | type Board = [[Cell; 8]; 8];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Next`
[INFO] [stdout]   --> src/game.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 12 |   Next(Piece),
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Pass`
[INFO] [stdout]   --> src/game.rs:13:3
[INFO] [stdout]    |
[INFO] [stdout] 13 |   Pass(Piece),
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IndexOutOf`
[INFO] [stdout]   --> src/game.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 |   IndexOutOf,
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Already`
[INFO] [stdout]   --> src/game.rs:15:3
[INFO] [stdout]    |
[INFO] [stdout] 15 |   Already,
[INFO] [stdout]    |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ZeroReverse`
[INFO] [stdout]   --> src/game.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 |   ZeroReverse,
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `End`
[INFO] [stdout]   --> src/game.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 17 |   End(usize, usize),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Game`
[INFO] [stdout]   --> src/game.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Game {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `size`
[INFO] [stdout]   --> src/game.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |   const size: usize = 8;
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/game.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 |   pub fn new() -> Game {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/game.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 |   pub fn next() -> GameResult {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `size` should have an upper case name
[INFO] [stdout]   --> src/game.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |   const size: usize = 8;
[INFO] [stdout]    |         ^^^^ help: convert the identifier to upper case: `SIZE`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "10c4441f58f00c1e505533c3d6221d1d51ad0d00c0714b9b9b60f81bf21567bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10c4441f58f00c1e505533c3d6221d1d51ad0d00c0714b9b9b60f81bf21567bc", kill_on_drop: false }`
[INFO] [stdout] 10c4441f58f00c1e505533c3d6221d1d51ad0d00c0714b9b9b60f81bf21567bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 72509097dec1b09e3ba8656ffc5c1ed1c932452659e9eb6a5efe36466b445b71
[INFO] running `Command { std: "docker" "start" "-a" "72509097dec1b09e3ba8656ffc5c1ed1c932452659e9eb6a5efe36466b445b71", kill_on_drop: false }`
[INFO] [stderr]    Compiling othello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Black`
[INFO] [stdout]  --> src/game.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 3 |   Black,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `While`
[INFO] [stdout]  --> src/game.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   While,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Cell`
[INFO] [stdout]  --> src/game.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | type Cell = Option<Piece>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Board`
[INFO] [stdout]  --> src/game.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | type Board = [[Cell; 8]; 8];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Next`
[INFO] [stdout]   --> src/game.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 12 |   Next(Piece),
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Pass`
[INFO] [stdout]   --> src/game.rs:13:3
[INFO] [stdout]    |
[INFO] [stdout] 13 |   Pass(Piece),
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IndexOutOf`
[INFO] [stdout]   --> src/game.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 |   IndexOutOf,
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Already`
[INFO] [stdout]   --> src/game.rs:15:3
[INFO] [stdout]    |
[INFO] [stdout] 15 |   Already,
[INFO] [stdout]    |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ZeroReverse`
[INFO] [stdout]   --> src/game.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 |   ZeroReverse,
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `End`
[INFO] [stdout]   --> src/game.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 17 |   End(usize, usize),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Game`
[INFO] [stdout]   --> src/game.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Game {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `size`
[INFO] [stdout]   --> src/game.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |   const size: usize = 8;
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/game.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 |   pub fn new() -> Game {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/game.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 |   pub fn next() -> GameResult {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `size` should have an upper case name
[INFO] [stdout]   --> src/game.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |   const size: usize = 8;
[INFO] [stdout]    |         ^^^^ help: convert the identifier to upper case: `SIZE`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "72509097dec1b09e3ba8656ffc5c1ed1c932452659e9eb6a5efe36466b445b71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72509097dec1b09e3ba8656ffc5c1ed1c932452659e9eb6a5efe36466b445b71", kill_on_drop: false }`
[INFO] [stdout] 72509097dec1b09e3ba8656ffc5c1ed1c932452659e9eb6a5efe36466b445b71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9058f7a187a8ff5f9dfa2912d01ab8a736db9e61be552451e0d88ae17911e57c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9058f7a187a8ff5f9dfa2912d01ab8a736db9e61be552451e0d88ae17911e57c", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `Black`
[INFO] [stderr]  --> src/game.rs:3:3
[INFO] [stderr]   |
[INFO] [stderr] 3 |   Black,
[INFO] [stderr]   |   ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `While`
[INFO] [stderr]  --> src/game.rs:4:3
[INFO] [stderr]   |
[INFO] [stderr] 4 |   While,
[INFO] [stderr]   |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Cell`
[INFO] [stderr]  --> src/game.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | type Cell = Option<Piece>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Board`
[INFO] [stderr]  --> src/game.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | type Board = [[Cell; 8]; 8];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Next`
[INFO] [stderr]   --> src/game.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   Next(Piece),
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Pass`
[INFO] [stderr]   --> src/game.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   Pass(Piece),
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IndexOutOf`
[INFO] [stderr]   --> src/game.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   IndexOutOf,
[INFO] [stderr]    |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Already`
[INFO] [stderr]   --> src/game.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   Already,
[INFO] [stderr]    |   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ZeroReverse`
[INFO] [stderr]   --> src/game.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   ZeroReverse,
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `End`
[INFO] [stderr]   --> src/game.rs:17:3
[INFO] [stderr]    |
[INFO] [stderr] 17 |   End(usize, usize),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Game`
[INFO] [stderr]   --> src/game.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | struct Game {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `size`
[INFO] [stderr]   --> src/game.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   const size: usize = 8;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/game.rs:28:10
[INFO] [stderr]    |
[INFO] [stderr] 28 |   pub fn new() -> Game {
[INFO] [stderr]    |          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `next`
[INFO] [stderr]   --> src/game.rs:63:10
[INFO] [stderr]    |
[INFO] [stderr] 63 |   pub fn next() -> GameResult {
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant `size` should have an upper case name
[INFO] [stderr]   --> src/game.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |   const size: usize = 8;
[INFO] [stderr]    |         ^^^^ help: convert the identifier to upper case: `SIZE`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/othello-a631653036bb54af
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9058f7a187a8ff5f9dfa2912d01ab8a736db9e61be552451e0d88ae17911e57c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9058f7a187a8ff5f9dfa2912d01ab8a736db9e61be552451e0d88ae17911e57c", kill_on_drop: false }`
[INFO] [stdout] 9058f7a187a8ff5f9dfa2912d01ab8a736db9e61be552451e0d88ae17911e57c