[INFO] cloning repository https://github.com/mikasaurus2/miktactoe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikasaurus2/miktactoe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikasaurus2%2Fmiktactoe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikasaurus2%2Fmiktactoe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6dd82b831011d8373e66127ab55f2c9023e247c
[INFO] testing mikasaurus2/miktactoe against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikasaurus2%2Fmiktactoe" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mikasaurus2/miktactoe on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mikasaurus2/miktactoe
[INFO] finished tweaking git repo https://github.com/mikasaurus2/miktactoe
[INFO] tweaked toml for git repo https://github.com/mikasaurus2/miktactoe written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/mikasaurus2/miktactoe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] e84f7bf4c54af2cee6d1f26e41bb4e6af5dbb1a191fc292b08c6e11bdb1dd49b
[INFO] running `Command { std: "docker" "start" "-a" "e84f7bf4c54af2cee6d1f26e41bb4e6af5dbb1a191fc292b08c6e11bdb1dd49b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e84f7bf4c54af2cee6d1f26e41bb4e6af5dbb1a191fc292b08c6e11bdb1dd49b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e84f7bf4c54af2cee6d1f26e41bb4e6af5dbb1a191fc292b08c6e11bdb1dd49b", kill_on_drop: false }`
[INFO] [stdout] e84f7bf4c54af2cee6d1f26e41bb4e6af5dbb1a191fc292b08c6e11bdb1dd49b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 558ce86099105d21e8d7f204edee0cdce17513b2609255a50a546fe96683af9a
[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" "558ce86099105d21e8d7f204edee0cdce17513b2609255a50a546fe96683af9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppv-lite86 v0.2.14
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling miktactoe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::thread_rng`
[INFO] [stdout]  --> src/board.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::thread_rng;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ai_basic::BasicAI`, `ai_forking::ForkingAI`, `ai_random::RandomAI`, `human::Human`
[INFO] [stdout]  --> src/game.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ai_basic::BasicAI, ai_forking::ForkingAI, ai_optimal::OptimalAI, ai_random::RandomAI,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 |     human::Human,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_info`
[INFO] [stdout]    --> src/board.rs:325:12
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn print_info(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]    --> src/board.rs:482:12
[INFO] [stdout]     |
[INFO] [stdout] 482 |     pub fn print(&self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/player/human.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(name: &str, marker: Marker) -> Human {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_valid_move`
[INFO] [stdout]   --> src/player/human.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get_valid_move(&self, board: &Board) -> CellCoord {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `RandomAI`
[INFO] [stdout]  --> src/player/ai_random.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct RandomAI<'a> {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/player/ai_random.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(name: &str, marker: Marker) -> RandomAI {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_valid_move`
[INFO] [stdout]   --> src/player/ai_random.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn get_valid_move(&mut self, board: &Board) -> CellCoord {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `BasicAI`
[INFO] [stdout]  --> src/player/ai_basic.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BasicAI<'a> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/player/ai_basic.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(name: &str, marker: Marker) -> BasicAI {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_valid_move`
[INFO] [stdout]   --> src/player/ai_basic.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn get_valid_move(&mut self, board: &Board) -> CellCoord {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ForkingAI`
[INFO] [stdout]  --> src/player/ai_forking.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct ForkingAI<'a> {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/player/ai_forking.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(name: &str, marker: Marker) -> ForkingAI {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_valid_move`
[INFO] [stdout]   --> src/player/ai_forking.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn get_valid_move(&mut self, board: &Board) -> CellCoord {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.78s
[INFO] running `Command { std: "docker" "inspect" "558ce86099105d21e8d7f204edee0cdce17513b2609255a50a546fe96683af9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "558ce86099105d21e8d7f204edee0cdce17513b2609255a50a546fe96683af9a", kill_on_drop: false }`
[INFO] [stdout] 558ce86099105d21e8d7f204edee0cdce17513b2609255a50a546fe96683af9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b913d5f9a1dc713882cde8f4705d18dc52f0b374c05fcf7c17933f56481b89fc
[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" "b913d5f9a1dc713882cde8f4705d18dc52f0b374c05fcf7c17933f56481b89fc", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `rand::thread_rng`
[INFO] [stdout]  --> src/board.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::thread_rng;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ai_basic::BasicAI`, `ai_forking::ForkingAI`, `ai_random::RandomAI`, `human::Human`
[INFO] [stdout]  --> src/game.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ai_basic::BasicAI, ai_forking::ForkingAI, ai_optimal::OptimalAI, ai_random::RandomAI,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 |     human::Human,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_info`
[INFO] [stdout]    --> src/board.rs:325:12
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn print_info(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling miktactoe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]    --> src/board.rs:482:12
[INFO] [stdout]     |
[INFO] [stdout] 482 |     pub fn print(&self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/player/human.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(name: &str, marker: Marker) -> Human {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_valid_move`
[INFO] [stdout]   --> src/player/human.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get_valid_move(&self, board: &Board) -> CellCoord {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `RandomAI`
[INFO] [stdout]  --> src/player/ai_random.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct RandomAI<'a> {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/player/ai_random.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(name: &str, marker: Marker) -> RandomAI {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_valid_move`
[INFO] [stdout]   --> src/player/ai_random.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn get_valid_move(&mut self, board: &Board) -> CellCoord {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `BasicAI`
[INFO] [stdout]  --> src/player/ai_basic.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BasicAI<'a> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/player/ai_basic.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(name: &str, marker: Marker) -> BasicAI {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_valid_move`
[INFO] [stdout]   --> src/player/ai_basic.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn get_valid_move(&mut self, board: &Board) -> CellCoord {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ForkingAI`
[INFO] [stdout]  --> src/player/ai_forking.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct ForkingAI<'a> {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/player/ai_forking.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(name: &str, marker: Marker) -> ForkingAI {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_valid_move`
[INFO] [stdout]   --> src/player/ai_forking.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn get_valid_move(&mut self, board: &Board) -> CellCoord {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::thread_rng`
[INFO] [stdout]  --> src/board.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::thread_rng;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ai_basic::BasicAI`, `ai_forking::ForkingAI`, `ai_random::RandomAI`, `human::Human`
[INFO] [stdout]  --> src/game.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ai_basic::BasicAI, ai_forking::ForkingAI, ai_optimal::OptimalAI, ai_random::RandomAI,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 |     human::Human,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_info`
[INFO] [stdout]    --> src/board.rs:325:12
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn print_info(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]    --> src/board.rs:482:12
[INFO] [stdout]     |
[INFO] [stdout] 482 |     pub fn print(&self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/player/human.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(name: &str, marker: Marker) -> Human {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_valid_move`
[INFO] [stdout]   --> src/player/human.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get_valid_move(&self, board: &Board) -> CellCoord {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `RandomAI`
[INFO] [stdout]  --> src/player/ai_random.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct RandomAI<'a> {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/player/ai_random.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(name: &str, marker: Marker) -> RandomAI {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_valid_move`
[INFO] [stdout]   --> src/player/ai_random.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn get_valid_move(&mut self, board: &Board) -> CellCoord {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `BasicAI`
[INFO] [stdout]  --> src/player/ai_basic.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BasicAI<'a> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/player/ai_basic.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(name: &str, marker: Marker) -> BasicAI {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_valid_move`
[INFO] [stdout]   --> src/player/ai_basic.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn get_valid_move(&mut self, board: &Board) -> CellCoord {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ForkingAI`
[INFO] [stdout]  --> src/player/ai_forking.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct ForkingAI<'a> {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/player/ai_forking.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(name: &str, marker: Marker) -> ForkingAI {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_valid_move`
[INFO] [stdout]   --> src/player/ai_forking.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn get_valid_move(&mut self, board: &Board) -> CellCoord {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.07s
[INFO] running `Command { std: "docker" "inspect" "b913d5f9a1dc713882cde8f4705d18dc52f0b374c05fcf7c17933f56481b89fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b913d5f9a1dc713882cde8f4705d18dc52f0b374c05fcf7c17933f56481b89fc", kill_on_drop: false }`
[INFO] [stdout] b913d5f9a1dc713882cde8f4705d18dc52f0b374c05fcf7c17933f56481b89fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c4cbccd088c435dd5d1fb6ff15db2d3e9ef5b93e92614f674191ccdb887afc36
[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" "c4cbccd088c435dd5d1fb6ff15db2d3e9ef5b93e92614f674191ccdb887afc36", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `rand::thread_rng`
[INFO] [stderr]  --> src/board.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::thread_rng;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ai_basic::BasicAI`, `ai_forking::ForkingAI`, `ai_random::RandomAI`, `human::Human`
[INFO] [stderr]  --> src/game.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     ai_basic::BasicAI, ai_forking::ForkingAI, ai_optimal::OptimalAI, ai_random::RandomAI,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 9 |     human::Human,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `print_info`
[INFO] [stderr]    --> src/board.rs:325:12
[INFO] [stderr]     |
[INFO] [stderr] 325 |     pub fn print_info(&self) {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `print`
[INFO] [stderr]    --> src/board.rs:482:12
[INFO] [stderr]     |
[INFO] [stderr] 482 |     pub fn print(&self) {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/player/human.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn new(name: &str, marker: Marker) -> Human {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_valid_move`
[INFO] [stderr]   --> src/player/human.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn get_valid_move(&self, board: &Board) -> CellCoord {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RandomAI`
[INFO] [stderr]  --> src/player/ai_random.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct RandomAI<'a> {
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/player/ai_random.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn new(name: &str, marker: Marker) -> RandomAI {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_valid_move`
[INFO] [stderr]   --> src/player/ai_random.rs:38:12
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn get_valid_move(&mut self, board: &Board) -> CellCoord {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `BasicAI`
[INFO] [stderr]  --> src/player/ai_basic.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct BasicAI<'a> {
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/player/ai_basic.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new(name: &str, marker: Marker) -> BasicAI {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_valid_move`
[INFO] [stderr]   --> src/player/ai_basic.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn get_valid_move(&mut self, board: &Board) -> CellCoord {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ForkingAI`
[INFO] [stderr]  --> src/player/ai_forking.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct ForkingAI<'a> {
[INFO] [stderr]   |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/player/ai_forking.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new(name: &str, marker: Marker) -> ForkingAI {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_valid_move`
[INFO] [stderr]   --> src/player/ai_forking.rs:34:12
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn get_valid_move(&mut self, board: &Board) -> CellCoord {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `miktactoe` (lib) generated 15 warnings
[INFO] [stderr] warning: `miktactoe` (lib test) generated 15 warnings (15 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/miktactoe-23c6e3c6863ce559)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test board::tests::validates_move_to_used_cell ... ok
[INFO] [stdout] test board::tests::gets_winning_move_row ... ok
[INFO] [stdout] test board::tests::gets_winning_move_none ... ok
[INFO] [stdout] test board::tests::gets_winning_move_diag ... ok
[INFO] [stdout] test board::tests::gets_winning_move_column ... ok
[INFO] [stdout] test board::tests::gets_forking_move ... ok
[INFO] [stdout] test board::tests::checks_row_not_win ... ok
[INFO] [stdout] test board::tests::checks_row_win ... ok
[INFO] [stdout] test board::tests::checks_diag_win ... ok
[INFO] [stdout] test board::tests::checks_column_win ... ok
[INFO] [stdout] test board::tests::checks_tie ... ok
[INFO] [stdout] test board::tests::checks_column_not_win ... ok
[INFO] [stdout] test board::tests::validates_out_of_bounds_move ... ok
[INFO] [stdout] test board::tests::gets_corner_moves ... ok
[INFO] [stdout] test board::tests::gets_edge_moves ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/miktactoe-7998cf6843090e3a)
[INFO] [stdout] test player::ai_optimal::tests::blocks_winning_move ... ok
[INFO] [stderr]    Doc-tests miktactoe
[INFO] [stdout] test player::ai_optimal::tests::makes_winning_move ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.01s
[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] [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" "c4cbccd088c435dd5d1fb6ff15db2d3e9ef5b93e92614f674191ccdb887afc36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4cbccd088c435dd5d1fb6ff15db2d3e9ef5b93e92614f674191ccdb887afc36", kill_on_drop: false }`
[INFO] [stdout] c4cbccd088c435dd5d1fb6ff15db2d3e9ef5b93e92614f674191ccdb887afc36