[INFO] updating cached repository https://github.com/kgtkr/othello
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98701536d5c8700feaae439a78d0c4d6a7c0425f
[INFO] testing kgtkr/othello against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkgtkr%2Fothello" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kgtkr/othello on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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-2/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" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1a052fac4a46285867bab52e655a54a5a19ff92a0117d2ac95b5687d5651aa2
[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" "a1a052fac4a46285867bab52e655a54a5a19ff92a0117d2ac95b5687d5651aa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1a052fac4a46285867bab52e655a54a5a19ff92a0117d2ac95b5687d5651aa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1a052fac4a46285867bab52e655a54a5a19ff92a0117d2ac95b5687d5651aa2", kill_on_drop: false }`
[INFO] [stdout] a1a052fac4a46285867bab52e655a54a5a19ff92a0117d2ac95b5687d5651aa2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0883425c8042ae6a1740d18aa0f6d78174a5f9ef03faf11c7d2289d1ebdc78a1
[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" "0883425c8042ae6a1740d18aa0f6d78174a5f9ef03faf11c7d2289d1ebdc78a1", 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 0.75s
[INFO] running `Command { std: "docker" "inspect" "0883425c8042ae6a1740d18aa0f6d78174a5f9ef03faf11c7d2289d1ebdc78a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0883425c8042ae6a1740d18aa0f6d78174a5f9ef03faf11c7d2289d1ebdc78a1", kill_on_drop: false }`
[INFO] [stdout] 0883425c8042ae6a1740d18aa0f6d78174a5f9ef03faf11c7d2289d1ebdc78a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c49a8aa86853d6fa5df0c49d709399d6774bd7db5fd59b5183ec756f82bdd256
[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" "c49a8aa86853d6fa5df0c49d709399d6774bd7db5fd59b5183ec756f82bdd256", 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 test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "c49a8aa86853d6fa5df0c49d709399d6774bd7db5fd59b5183ec756f82bdd256", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c49a8aa86853d6fa5df0c49d709399d6774bd7db5fd59b5183ec756f82bdd256", kill_on_drop: false }`
[INFO] [stdout] c49a8aa86853d6fa5df0c49d709399d6774bd7db5fd59b5183ec756f82bdd256
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c783230dc0b883c6dce4c57e5b8a23a26af7a4e614a313cc0dc3b5f51f7e028f
[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" "c783230dc0b883c6dce4c57e5b8a23a26af7a4e614a313cc0dc3b5f51f7e028f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variant is never constructed: `Black`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/game.rs:3:3
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 3 |   Black,
[INFO] [stdout] 
[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 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/othello-eb967fc5d741a9d6
[INFO] running `Command { std: "docker" "inspect" "c783230dc0b883c6dce4c57e5b8a23a26af7a4e614a313cc0dc3b5f51f7e028f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c783230dc0b883c6dce4c57e5b8a23a26af7a4e614a313cc0dc3b5f51f7e028f", kill_on_drop: false }`
[INFO] [stdout] c783230dc0b883c6dce4c57e5b8a23a26af7a4e614a313cc0dc3b5f51f7e028f