[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 beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftectrixer%2Fneat" "/workspace/builds/worker-66/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-66/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tectrixer/neat on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-66/source/Cargo.toml
[INFO] crate git repo https://github.com/tectrixer/neat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df1f2ab6943a17b87b9662e5fb52db5a8c8ba47cabc39e1eaf782d4873079614
[INFO] running `Command { std: "docker" "start" "-a" "df1f2ab6943a17b87b9662e5fb52db5a8c8ba47cabc39e1eaf782d4873079614", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df1f2ab6943a17b87b9662e5fb52db5a8c8ba47cabc39e1eaf782d4873079614", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df1f2ab6943a17b87b9662e5fb52db5a8c8ba47cabc39e1eaf782d4873079614", kill_on_drop: false }`
[INFO] [stdout] df1f2ab6943a17b87b9662e5fb52db5a8c8ba47cabc39e1eaf782d4873079614
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 122adbac2e55e7243bcd4959413846c2721689debf2e5db4c316ff7511d49b48
[INFO] running `Command { std: "docker" "start" "-a" "122adbac2e55e7243bcd4959413846c2721689debf2e5db4c316ff7511d49b48", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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: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]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `save`
[INFO] [stdout]   --> src/genotype.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn save(&self, filename_option: Option<String>) -> Result<(), GenotypeError> {
[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: `load`
[INFO] [stdout]   --> src/genotype.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn load(filename_option: Option<String>) -> Result<Genotype, GenotypeError> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FileNotFound`
[INFO] [stdout]    --> src/genotype.rs:114:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     FileNotFound,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FileSystemError`
[INFO] [stdout]    --> src/genotype.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 |     FileSystemError,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SerializingError`
[INFO] [stdout]    --> src/genotype.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     SerializingError,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DeserializingError`
[INFO] [stdout]    --> src/genotype.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     DeserializingError,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TicTacToeGame`
[INFO] [stdout]  --> src/tictactoe.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct TicTacToeGame {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `X`
[INFO] [stdout]   --> src/tictactoe.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     X,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `O`
[INFO] [stdout]   --> src/tictactoe.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     O,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]   --> src/tictactoe.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Empty,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tictactoe.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn new() -> TicTacToeGame {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `whos_turn`
[INFO] [stdout]   --> src/tictactoe.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn whos_turn(&self) -> Fields {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `make_move`
[INFO] [stdout]   --> src/tictactoe.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn make_move(
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_winner`
[INFO] [stdout]   --> src/tictactoe.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn check_winner(&mut self, x: usize, y: usize) -> Option<Fields> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `format_board`
[INFO] [stdout]    --> src/tictactoe.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn format_board(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FieldNotEmpty`
[INFO] [stdout]    --> src/tictactoe.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     FieldNotEmpty,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoEmptyFieldLeft`
[INFO] [stdout]    --> src/tictactoe.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     NoEmptyFieldLeft,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NotAValidField`
[INFO] [stdout]    --> src/tictactoe.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 153 |     NotAValidField,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.44s
[INFO] running `Command { std: "docker" "inspect" "122adbac2e55e7243bcd4959413846c2721689debf2e5db4c316ff7511d49b48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "122adbac2e55e7243bcd4959413846c2721689debf2e5db4c316ff7511d49b48", kill_on_drop: false }`
[INFO] [stdout] 122adbac2e55e7243bcd4959413846c2721689debf2e5db4c316ff7511d49b48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] beb7c1788be896c9823e3c7edc722e9ec84b2ef27c38ee23c5c70be1c7eeb0a8
[INFO] running `Command { std: "docker" "start" "-a" "beb7c1788be896c9823e3c7edc722e9ec84b2ef27c38ee23c5c70be1c7eeb0a8", 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: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]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `save`
[INFO] [stdout]   --> src/genotype.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn save(&self, filename_option: Option<String>) -> Result<(), GenotypeError> {
[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: `load`
[INFO] [stdout]   --> src/genotype.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn load(filename_option: Option<String>) -> Result<Genotype, GenotypeError> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FileNotFound`
[INFO] [stdout]    --> src/genotype.rs:114:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     FileNotFound,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FileSystemError`
[INFO] [stdout]    --> src/genotype.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 |     FileSystemError,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SerializingError`
[INFO] [stdout]    --> src/genotype.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     SerializingError,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DeserializingError`
[INFO] [stdout]    --> src/genotype.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     DeserializingError,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TicTacToeGame`
[INFO] [stdout]  --> src/tictactoe.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct TicTacToeGame {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `X`
[INFO] [stdout]   --> src/tictactoe.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     X,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `O`
[INFO] [stdout]   --> src/tictactoe.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     O,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]   --> src/tictactoe.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Empty,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tictactoe.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn new() -> TicTacToeGame {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `whos_turn`
[INFO] [stdout]   --> src/tictactoe.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn whos_turn(&self) -> Fields {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `make_move`
[INFO] [stdout]   --> src/tictactoe.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn make_move(
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_winner`
[INFO] [stdout]   --> src/tictactoe.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn check_winner(&mut self, x: usize, y: usize) -> Option<Fields> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `format_board`
[INFO] [stdout]    --> src/tictactoe.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn format_board(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FieldNotEmpty`
[INFO] [stdout]    --> src/tictactoe.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     FieldNotEmpty,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoEmptyFieldLeft`
[INFO] [stdout]    --> src/tictactoe.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     NoEmptyFieldLeft,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NotAValidField`
[INFO] [stdout]    --> src/tictactoe.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 153 |     NotAValidField,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "beb7c1788be896c9823e3c7edc722e9ec84b2ef27c38ee23c5c70be1c7eeb0a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beb7c1788be896c9823e3c7edc722e9ec84b2ef27c38ee23c5c70be1c7eeb0a8", kill_on_drop: false }`
[INFO] [stdout] beb7c1788be896c9823e3c7edc722e9ec84b2ef27c38ee23c5c70be1c7eeb0a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9f9caca0c0b7c0c91a990312dd91e98a76a4986840efc3e9fc5cddf405acb454
[INFO] running `Command { std: "docker" "start" "-a" "9f9caca0c0b7c0c91a990312dd91e98a76a4986840efc3e9fc5cddf405acb454", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/phenotype.rs:57:26
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 57 |     pub fn from_genotype(mut genotype: Genotype) -> Phenotype {
[INFO] [stdout] 
[INFO] [stderr]    |                          ----^^^^^^^^
[INFO] [stderr]    |                          |
[INFO] [stderr]    |                          help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `save`
[INFO] [stderr]   --> src/genotype.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn save(&self, filename_option: Option<String>) -> Result<(), GenotypeError> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `load`
[INFO] [stderr]   --> src/genotype.rs:59:12
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn load(filename_option: Option<String>) -> Result<Genotype, GenotypeError> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FileNotFound`
[INFO] [stderr]    --> src/genotype.rs:114:5
[INFO] [stderr]     |
[INFO] [stderr] 114 |     FileNotFound,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FileSystemError`
[INFO] [stderr]    --> src/genotype.rs:115:5
[INFO] [stderr]     |
[INFO] [stderr] 115 |     FileSystemError,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SerializingError`
[INFO] [stderr]    --> src/genotype.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     SerializingError,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DeserializingError`
[INFO] [stderr]    --> src/genotype.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     DeserializingError,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TicTacToeGame`
[INFO] [stderr]  --> src/tictactoe.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct TicTacToeGame {
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `X`
[INFO] [stderr]   --> src/tictactoe.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     X,
[INFO] [stderr]    |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `O`
[INFO] [stderr]   --> src/tictactoe.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     O,
[INFO] [stderr]    |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Empty`
[INFO] [stderr]   --> src/tictactoe.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     Empty,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/tictactoe.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn new() -> TicTacToeGame {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `whos_turn`
[INFO] [stderr]   --> src/tictactoe.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn whos_turn(&self) -> Fields {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `make_move`
[INFO] [stderr]   --> src/tictactoe.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn make_move(
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `check_winner`
[INFO] [stderr]   --> src/tictactoe.rs:78:8
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn check_winner(&mut self, x: usize, y: usize) -> Option<Fields> {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `format_board`
[INFO] [stderr]    --> src/tictactoe.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn format_board(&self) -> String {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FieldNotEmpty`
[INFO] [stderr]    --> src/tictactoe.rs:151:5
[INFO] [stderr]     |
[INFO] [stderr] 151 |     FieldNotEmpty,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NoEmptyFieldLeft`
[INFO] [stderr]    --> src/tictactoe.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 152 |     NoEmptyFieldLeft,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NotAValidField`
[INFO] [stderr]    --> src/tictactoe.rs:153:5
[INFO] [stderr]     |
[INFO] [stderr] 153 |     NotAValidField,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `neat` (bin "neat" test) generated 19 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/neat-fbe82f4f05665d70)
[INFO] running `Command { std: "docker" "inspect" "9f9caca0c0b7c0c91a990312dd91e98a76a4986840efc3e9fc5cddf405acb454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f9caca0c0b7c0c91a990312dd91e98a76a4986840efc3e9fc5cddf405acb454", kill_on_drop: false }`
[INFO] [stdout] 9f9caca0c0b7c0c91a990312dd91e98a76a4986840efc3e9fc5cddf405acb454