[INFO] cloning repository https://github.com/tectrixer/neat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tectrixer/neat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftectrixer%2Fneat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftectrixer%2Fneat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e038135772d8bac08da7794cc8b03f3137c331f
[INFO] testing tectrixer/neat against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftectrixer%2Fneat" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tectrixer/neat
[INFO] finished tweaking git repo https://github.com/tectrixer/neat
[INFO] tweaked toml for git repo https://github.com/tectrixer/neat written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tectrixer/neat on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tectrixer/neat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57d665f59392bda67b51850968da7e474d6806a18d9ea3fefd9075fd5dfe31c1
[INFO] running `Command { std: "docker" "start" "-a" "57d665f59392bda67b51850968da7e474d6806a18d9ea3fefd9075fd5dfe31c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57d665f59392bda67b51850968da7e474d6806a18d9ea3fefd9075fd5dfe31c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57d665f59392bda67b51850968da7e474d6806a18d9ea3fefd9075fd5dfe31c1", kill_on_drop: false }`
[INFO] [stdout] 57d665f59392bda67b51850968da7e474d6806a18d9ea3fefd9075fd5dfe31c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df06029318ae3adfe3b72287e6f7b2c7f691f064c22caab379787298174a3829
[INFO] running `Command { std: "docker" "start" "-a" "df06029318ae3adfe3b72287e6f7b2c7f691f064c22caab379787298174a3829", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling neat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/phenotype.rs:37:34
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn recursive_feed(&mut self, mut node: &mut PhenoNodes, inputs: &Vec<f64>) -> f64 {
[INFO] [stdout]    |                                  ----^^^^
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/phenotype.rs:57:26
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn from_genotype(mut genotype: Genotype) -> Phenotype {
[INFO] [stdout]    |                          ----^^^^^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `save` and `load` are never used
[INFO] [stdout]   --> src/genotype.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl Genotype {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn save(&self, filename_option: Option<String>) -> Result<(), GenotypeError> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn load(filename_option: Option<String>) -> Result<Genotype, GenotypeError> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `GenotypeError` is never used
[INFO] [stdout]    --> src/genotype.rs:113:10
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub enum GenotypeError {
[INFO] [stdout]     |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TicTacToeGame` is never constructed
[INFO] [stdout]  --> src/tictactoe.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct TicTacToeGame {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Fields` is never used
[INFO] [stdout]   --> src/tictactoe.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Fields {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `whos_turn`, `make_move`, `check_winner`, and `format_board` are never used
[INFO] [stdout]    --> src/tictactoe.rs:22:12
[INFO] [stdout]     |
[INFO] [stdout]  20 | impl TicTacToeGame {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout]  21 |     // Initializing a new empty game with an empty board. Player X will always start;
[INFO] [stdout]  22 |     pub fn new() -> TicTacToeGame {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  36 |     pub fn whos_turn(&self) -> Fields {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  43 |     pub fn make_move(
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  78 |     fn check_winner(&mut self, x: usize, y: usize) -> Option<Fields> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn format_board(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MoveNotPossibleError` is never used
[INFO] [stdout]    --> src/tictactoe.rs:150:10
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub enum MoveNotPossibleError {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.77s
[INFO] running `Command { std: "docker" "inspect" "df06029318ae3adfe3b72287e6f7b2c7f691f064c22caab379787298174a3829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df06029318ae3adfe3b72287e6f7b2c7f691f064c22caab379787298174a3829", kill_on_drop: false }`
[INFO] [stdout] df06029318ae3adfe3b72287e6f7b2c7f691f064c22caab379787298174a3829
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 274250f865178cb6b10230980a8ebf913665b698c0805d93486a699756fb3446
[INFO] running `Command { std: "docker" "start" "-a" "274250f865178cb6b10230980a8ebf913665b698c0805d93486a699756fb3446", kill_on_drop: false }`
[INFO] [stderr]    Compiling neat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/phenotype.rs:37:34
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn recursive_feed(&mut self, mut node: &mut PhenoNodes, inputs: &Vec<f64>) -> f64 {
[INFO] [stdout]    |                                  ----^^^^
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/phenotype.rs:57:26
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn from_genotype(mut genotype: Genotype) -> Phenotype {
[INFO] [stdout]    |                          ----^^^^^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `save` and `load` are never used
[INFO] [stdout]   --> src/genotype.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl Genotype {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn save(&self, filename_option: Option<String>) -> Result<(), GenotypeError> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn load(filename_option: Option<String>) -> Result<Genotype, GenotypeError> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `GenotypeError` is never used
[INFO] [stdout]    --> src/genotype.rs:113:10
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub enum GenotypeError {
[INFO] [stdout]     |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TicTacToeGame` is never constructed
[INFO] [stdout]  --> src/tictactoe.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct TicTacToeGame {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Fields` is never used
[INFO] [stdout]   --> src/tictactoe.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Fields {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `whos_turn`, `make_move`, `check_winner`, and `format_board` are never used
[INFO] [stdout]    --> src/tictactoe.rs:22:12
[INFO] [stdout]     |
[INFO] [stdout]  20 | impl TicTacToeGame {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout]  21 |     // Initializing a new empty game with an empty board. Player X will always start;
[INFO] [stdout]  22 |     pub fn new() -> TicTacToeGame {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  36 |     pub fn whos_turn(&self) -> Fields {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  43 |     pub fn make_move(
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  78 |     fn check_winner(&mut self, x: usize, y: usize) -> Option<Fields> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn format_board(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MoveNotPossibleError` is never used
[INFO] [stdout]    --> src/tictactoe.rs:150:10
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub enum MoveNotPossibleError {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "274250f865178cb6b10230980a8ebf913665b698c0805d93486a699756fb3446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "274250f865178cb6b10230980a8ebf913665b698c0805d93486a699756fb3446", kill_on_drop: false }`
[INFO] [stdout] 274250f865178cb6b10230980a8ebf913665b698c0805d93486a699756fb3446
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b9f671edb2440c38e9b77dfddd5137884a5873323651d4b92daffc80867214a3
[INFO] running `Command { std: "docker" "start" "-a" "b9f671edb2440c38e9b77dfddd5137884a5873323651d4b92daffc80867214a3", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/phenotype.rs:37:34
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn recursive_feed(&mut self, mut node: &mut PhenoNodes, inputs: &Vec<f64>) -> f64 {
[INFO] [stderr]    |                                  ----^^^^
[INFO] [stderr]    |                                  |
[INFO] [stderr]    |                                  help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/phenotype.rs:57:26
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn from_genotype(mut genotype: Genotype) -> Phenotype {
[INFO] [stderr]    |                          ----^^^^^^^^
[INFO] [stderr]    |                          |
[INFO] [stderr]    |                          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `save` and `load` are never used
[INFO] [stderr]   --> src/genotype.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 32 | impl Genotype {
[INFO] [stderr]    | ------------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 36 |     pub fn save(&self, filename_option: Option<String>) -> Result<(), GenotypeError> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 59 |     pub fn load(filename_option: Option<String>) -> Result<Genotype, GenotypeError> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `GenotypeError` is never used
[INFO] [stderr]    --> src/genotype.rs:113:10
[INFO] [stderr]     |
[INFO] [stderr] 113 | pub enum GenotypeError {
[INFO] [stderr]     |          ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TicTacToeGame` is never constructed
[INFO] [stderr]  --> src/tictactoe.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct TicTacToeGame {
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Fields` is never used
[INFO] [stderr]   --> src/tictactoe.rs:14:10
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub enum Fields {
[INFO] [stderr]    |          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `whos_turn`, `make_move`, `check_winner`, and `format_board` are never used
[INFO] [stderr]    --> src/tictactoe.rs:22:12
[INFO] [stderr]     |
[INFO] [stderr]  20 | impl TicTacToeGame {
[INFO] [stderr]     | ------------------ associated items in this implementation
[INFO] [stderr]  21 |     // Initializing a new empty game with an empty board. Player X will always start;
[INFO] [stderr]  22 |     pub fn new() -> TicTacToeGame {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr]  36 |     pub fn whos_turn(&self) -> Fields {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  43 |     pub fn make_move(
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  78 |     fn check_winner(&mut self, x: usize, y: usize) -> Option<Fields> {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 131 |     pub fn format_board(&self) -> String {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `MoveNotPossibleError` is never used
[INFO] [stderr]    --> src/tictactoe.rs:150:10
[INFO] [stderr]     |
[INFO] [stderr] 150 | pub enum MoveNotPossibleError {
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `neat` (bin "neat" test) generated 8 warnings (run `cargo fix --bin "neat" -p neat --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/neat-dc00826d3d92b0a0)
[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" "b9f671edb2440c38e9b77dfddd5137884a5873323651d4b92daffc80867214a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9f671edb2440c38e9b77dfddd5137884a5873323651d4b92daffc80867214a3", kill_on_drop: false }`
[INFO] [stdout] b9f671edb2440c38e9b77dfddd5137884a5873323651d4b92daffc80867214a3
