[INFO] cloning repository https://github.com/zeerorg/A-I-Rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zeerorg/A-I-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeerorg%2FA-I-Rust"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeerorg%2FA-I-Rust'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 712666ec65c352fffb65ed245fd47a3dea07b90a
[INFO] checking zeerorg/A-I-Rust against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeerorg%2FA-I-Rust" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zeerorg/A-I-Rust on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/zeerorg/A-I-Rust
[INFO] finished tweaking git repo https://github.com/zeerorg/A-I-Rust
[INFO] tweaked toml for git repo https://github.com/zeerorg/A-I-Rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/zeerorg/A-I-Rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f68261a7bb26e210e59e6b0932660b78e9847dc8393196b730473e4978ff2491
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "f68261a7bb26e210e59e6b0932660b78e9847dc8393196b730473e4978ff2491"`
[INFO] [stderr]     Checking artificial_intelligence v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/algo/dfs.rs:5:84
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn dfs<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |                                                                                    ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> bool`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/algo/dfs.rs:5:117
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn dfs<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |                                                                                                                     ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/algo/bfs.rs:5:84
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn bfs<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |                                                                                    ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/algo/bfs.rs:5:117
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn bfs<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |                                                                                                                     ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/algo/dfid.rs:6:85
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn dfid<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: &Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |                                                                                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/algo/dfid.rs:6:119
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn dfid<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: &Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |                                                                                                                       ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algo/dfid.rs:24:86
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn dfs_depth<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: &Vec<&Fn(&T) -> T>, max_depth: i32) -> (bool, i32) {
[INFO] [stderr]    |                                                                                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algo/dfid.rs:24:120
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn dfs_depth<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: &Vec<&Fn(&T) -> T>, max_depth: i32) -> (bool, i32) {
[INFO] [stderr]    |                                                                                                                        ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/algo/dfs.rs:5:84
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn dfs<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |                                                                                    ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> bool`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/algo/dfs.rs:5:117
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn dfs<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |                                                                                                                     ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/algo/bfs.rs:5:84
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn bfs<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |                                                                                    ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/algo/bfs.rs:5:117
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn bfs<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |                                                                                                                     ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/algo/dfid.rs:6:85
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn dfid<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: &Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |                                                                                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/algo/dfid.rs:6:119
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn dfid<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: &Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |                                                                                                                       ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algo/dfid.rs:24:86
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn dfs_depth<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: &Vec<&Fn(&T) -> T>, max_depth: i32) -> (bool, i32) {
[INFO] [stderr]    |                                                                                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/algo/dfid.rs:24:120
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn dfs_depth<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: &Vec<&Fn(&T) -> T>, max_depth: i32) -> (bool, i32) {
[INFO] [stderr]    |                                                                                                                        ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dfs`
[INFO] [stderr]  --> src/algo/dfs.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn dfs<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bfs`
[INFO] [stderr]  --> src/algo/bfs.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn bfs<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dfid`
[INFO] [stderr]  --> src/algo/dfid.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn dfid<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: &Vec<&Fn(&T) -> T>) -> bool {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dfs_depth`
[INFO] [stderr]   --> src/algo/dfid.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn dfs_depth<T: PartialEq + Hash + Eq + Clone + Display> (start: &T, goal_function: &Fn(&T) -> bool, _functions: &Vec<&Fn(&T) -> T>, max_depth: i32) -> (bool, i32) {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `start_game`
[INFO] [stderr]  --> src/algo/tic_tac_toe_algo.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn start_game() -> i32 {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/problems/water_jug.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(jug_a: i32, jug_b: i32, max_a: i32, max_b: i32) -> Jugs {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fill_a`
[INFO] [stderr]   --> src/problems/water_jug.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub fn fill_a(jugs: &Jugs) -> Jugs {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fill_b`
[INFO] [stderr]   --> src/problems/water_jug.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn fill_b(jugs: &Jugs) -> Jugs {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `empty_a`
[INFO] [stderr]   --> src/problems/water_jug.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn empty_a(jugs: &Jugs) -> Jugs {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `empty_b`
[INFO] [stderr]   --> src/problems/water_jug.rs:56:8
[INFO] [stderr]    |
[INFO] [stderr] 56 | pub fn empty_b(jugs: &Jugs) -> Jugs {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `trn_a_to_b`
[INFO] [stderr]   --> src/problems/water_jug.rs:65:8
[INFO] [stderr]    |
[INFO] [stderr] 65 | pub fn trn_a_to_b(jugs: &Jugs) -> Jugs {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `trn_b_to_a`
[INFO] [stderr]   --> src/problems/water_jug.rs:74:8
[INFO] [stderr]    |
[INFO] [stderr] 74 | pub fn trn_b_to_a(jugs: &Jugs) -> Jugs {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/problems/eight_puzz.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new(puzzle: [[i32; 3] ; 3]) -> Puzzle {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `from_up`
[INFO] [stderr]   --> src/problems/eight_puzz.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn from_up(x: &Puzzle) -> Puzzle {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `from_down`
[INFO] [stderr]   --> src/problems/eight_puzz.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn from_down(x: &Puzzle) -> Puzzle {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `from_left`
[INFO] [stderr]   --> src/problems/eight_puzz.rs:57:8
[INFO] [stderr]    |
[INFO] [stderr] 57 | pub fn from_left(x: &Puzzle) -> Puzzle {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `from_right`
[INFO] [stderr]   --> src/problems/eight_puzz.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn from_right(x: &Puzzle) -> Puzzle {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Blank`
[INFO] [stderr]  --> src/problems/tic_tac_toe.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Blank = 2,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `X`
[INFO] [stderr]  --> src/problems/tic_tac_toe.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     X = 3,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `O`
[INFO] [stderr]  --> src/problems/tic_tac_toe.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     O = 5
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/problems/tic_tac_toe.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn new() -> Board {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `make_2`
[INFO] [stderr]   --> src/problems/tic_tac_toe.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn make_2(&self) -> Option<i32> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `poss_win`
[INFO] [stderr]   --> src/problems/tic_tac_toe.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn poss_win(&self, p: Moves) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `go`
[INFO] [stderr]   --> src/problems/tic_tac_toe.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn go(&mut self, pos: &i32, mv: Moves) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_blank`
[INFO] [stderr]   --> src/problems/tic_tac_toe.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     fn get_blank(&self, positions: &[i32]) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_product`
[INFO] [stderr]   --> src/problems/tic_tac_toe.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     fn get_product(&self, positions: &[i32]) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `NodeDepth`
[INFO] [stderr]  --> src/helper/node.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct NodeDepth<T> {
[INFO] [stderr]   |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/helper/node.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new(data: T, depth: i32) -> NodeDepth<T> {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 36 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `start_game`
[INFO] [stderr]  --> src/algo/tic_tac_toe_algo.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn start_game() -> i32 {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Blank`
[INFO] [stderr]  --> src/problems/tic_tac_toe.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Blank = 2,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `X`
[INFO] [stderr]  --> src/problems/tic_tac_toe.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     X = 3,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `O`
[INFO] [stderr]  --> src/problems/tic_tac_toe.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     O = 5
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/problems/tic_tac_toe.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn new() -> Board {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `make_2`
[INFO] [stderr]   --> src/problems/tic_tac_toe.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn make_2(&self) -> Option<i32> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `poss_win`
[INFO] [stderr]   --> src/problems/tic_tac_toe.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn poss_win(&self, p: Moves) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `go`
[INFO] [stderr]   --> src/problems/tic_tac_toe.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn go(&mut self, pos: &i32, mv: Moves) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_blank`
[INFO] [stderr]   --> src/problems/tic_tac_toe.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     fn get_blank(&self, positions: &[i32]) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_product`
[INFO] [stderr]   --> src/problems/tic_tac_toe.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     fn get_product(&self, positions: &[i32]) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "f68261a7bb26e210e59e6b0932660b78e9847dc8393196b730473e4978ff2491"`
[INFO] running `"docker" "rm" "-f" "f68261a7bb26e210e59e6b0932660b78e9847dc8393196b730473e4978ff2491"`
[INFO] [stdout] f68261a7bb26e210e59e6b0932660b78e9847dc8393196b730473e4978ff2491