[INFO] cloning repository https://github.com/HGHimself/tictactoe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HGHimself/tictactoe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHGHimself%2Ftictactoe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHGHimself%2Ftictactoe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0d8db819b2ceb29d905b786aa52fe242268daa9e
[INFO] testing HGHimself/tictactoe against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHGHimself%2Ftictactoe" "/workspace/builds/worker-46/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-46/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HGHimself/tictactoe on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HGHimself/tictactoe
[INFO] finished tweaking git repo https://github.com/HGHimself/tictactoe
[INFO] tweaked toml for git repo https://github.com/HGHimself/tictactoe written to /workspace/builds/worker-46/source/Cargo.toml
[INFO] crate git repo https://github.com/HGHimself/tictactoe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f9a64b54bde05083ca4a6a67f17fbae67ef1d24804082a6c1a42b8890789a83
[INFO] running `Command { std: "docker" "start" "-a" "9f9a64b54bde05083ca4a6a67f17fbae67ef1d24804082a6c1a42b8890789a83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f9a64b54bde05083ca4a6a67f17fbae67ef1d24804082a6c1a42b8890789a83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f9a64b54bde05083ca4a6a67f17fbae67ef1d24804082a6c1a42b8890789a83", kill_on_drop: false }`
[INFO] [stdout] 9f9a64b54bde05083ca4a6a67f17fbae67ef1d24804082a6c1a42b8890789a83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3478eeedaceebe8908f5aef85c719fa8a130c55ae4c8209c204f321fd755de5
[INFO] running `Command { std: "docker" "start" "-a" "a3478eeedaceebe8908f5aef85c719fa8a130c55ae4c8209c204f321fd755de5", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.68
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling wasm-bindgen v0.2.68
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.68
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.68
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.68
[INFO] [stderr]    Compiling tictactoe v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/heuristic_counter.rs:161:8
[INFO] [stdout]     |
[INFO] [stdout] 161 |     if (x_4_in_row(input) != 0) {
[INFO] [stdout]     |        ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 161 -     if (x_4_in_row(input) != 0) {
[INFO] [stdout] 161 +     if x_4_in_row(input) != 0 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/heuristic_counter.rs:164:8
[INFO] [stdout]     |
[INFO] [stdout] 164 |     if (o_4_in_row(input) != 0) {
[INFO] [stdout]     |        ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 164 -     if (o_4_in_row(input) != 0) {
[INFO] [stdout] 164 +     if o_4_in_row(input) != 0 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/heuristic_counter.rs:172:14
[INFO] [stdout]     |
[INFO] [stdout] 172 |     count += (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stdout]     |              ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 172 -     count += (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stdout] 172 +     count += x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input); //[# of open-2-in-a-row for me]
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/heuristic_counter.rs:173:14
[INFO] [stdout]     |
[INFO] [stdout] 173 |     count -= (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stdout]     |              ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 173 -     count -= (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stdout] 173 +     count -= o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input); //[# of open-2-in-a-row for opponent]
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/heuristic_counter.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 179 |     if (o_4_in_row(input) != 0) {
[INFO] [stdout]     |        ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 179 -     if (o_4_in_row(input) != 0) {
[INFO] [stdout] 179 +     if o_4_in_row(input) != 0 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/heuristic_counter.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     if (x_4_in_row(input) != 0) {
[INFO] [stdout]     |        ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 182 -     if (x_4_in_row(input) != 0) {
[INFO] [stdout] 182 +     if x_4_in_row(input) != 0 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/heuristic_counter.rs:190:14
[INFO] [stdout]     |
[INFO] [stdout] 190 |     count += (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stdout]     |              ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 190 -     count += (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stdout] 190 +     count += o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input); //[# of open-2-in-a-row for me]
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/heuristic_counter.rs:191:14
[INFO] [stdout]     |
[INFO] [stdout] 191 |     count -= (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stdout]     |              ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 191 -     count -= (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stdout] 191 +     count -= x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input); //[# of open-2-in-a-row for opponent]
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:82:28
[INFO] [stdout]    |
[INFO] [stdout] 82 |         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stdout]    |                            ^                         ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stdout] 82 +         heuristic_total += v_heuristic + h_heuristic;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:107:28
[INFO] [stdout]     |
[INFO] [stdout] 107 |         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stdout]     |                            ^                         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 107 -         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stdout] 107 +         heuristic_total += v_heuristic + h_heuristic;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:247:22
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 let (x, y) = gen_random(self.length);
[INFO] [stdout]     |                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/lib.rs:247:25
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 let (x, y) = gen_random(self.length);
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `player`
[INFO] [stdout]   --> src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     player: Symbol,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `opponent`
[INFO] [stdout]   --> src/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     opponent: Symbol,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `winner`
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     winner: Symbol,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_board`
[INFO] [stdout]    --> src/lib.rs:325:8
[INFO] [stdout]     |
[INFO] [stdout] 325 |     fn get_board(&self) -> &Board {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 40s
[INFO] running `Command { std: "docker" "inspect" "a3478eeedaceebe8908f5aef85c719fa8a130c55ae4c8209c204f321fd755de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3478eeedaceebe8908f5aef85c719fa8a130c55ae4c8209c204f321fd755de5", kill_on_drop: false }`
[INFO] [stdout] a3478eeedaceebe8908f5aef85c719fa8a130c55ae4c8209c204f321fd755de5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6e95d040dab946f81297fcac782635f5dfaaceca8cddf58664e65b6741d6965
[INFO] running `Command { std: "docker" "start" "-a" "d6e95d040dab946f81297fcac782635f5dfaaceca8cddf58664e65b6741d6965", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/heuristic_counter.rs:161:8
[INFO] [stdout]     |
[INFO] [stdout] 161 |     if (x_4_in_row(input) != 0) {
[INFO] [stdout]     |        ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 161 -     if (x_4_in_row(input) != 0) {
[INFO] [stdout] 161 +     if x_4_in_row(input) != 0 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/heuristic_counter.rs:164:8
[INFO] [stdout]     |
[INFO] [stdout] 164 |     if (o_4_in_row(input) != 0) {
[INFO] [stdout]     |        ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 164 -     if (o_4_in_row(input) != 0) {
[INFO] [stdout] 164 +     if o_4_in_row(input) != 0 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/heuristic_counter.rs:172:14
[INFO] [stdout]     |
[INFO] [stdout] 172 |     count += (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stdout]     |              ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 172 -     count += (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stdout] 172 +     count += x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input); //[# of open-2-in-a-row for me]
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/heuristic_counter.rs:173:14
[INFO] [stdout]     |
[INFO] [stdout] 173 |     count -= (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stdout]     |              ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 173 -     count -= (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stdout] 173 +     count -= o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input); //[# of open-2-in-a-row for opponent]
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/heuristic_counter.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 179 |     if (o_4_in_row(input) != 0) {
[INFO] [stdout]     |        ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 179 -     if (o_4_in_row(input) != 0) {
[INFO] [stdout] 179 +     if o_4_in_row(input) != 0 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/heuristic_counter.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     if (x_4_in_row(input) != 0) {
[INFO] [stdout]     |        ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 182 -     if (x_4_in_row(input) != 0) {
[INFO] [stdout] 182 +     if x_4_in_row(input) != 0 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/heuristic_counter.rs:190:14
[INFO] [stdout]     |
[INFO] [stdout] 190 |     count += (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stdout]     |              ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 190 -     count += (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stdout] 190 +     count += o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input); //[# of open-2-in-a-row for me]
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/heuristic_counter.rs:191:14
[INFO] [stdout]     |
[INFO] [stdout] 191 |     count -= (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stdout]     |              ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 191 -     count -= (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stdout] 191 +     count -= x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input); //[# of open-2-in-a-row for opponent]
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:82:28
[INFO] [stdout]    |
[INFO] [stdout] 82 |         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stdout]    |                            ^                         ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stdout] 82 +         heuristic_total += v_heuristic + h_heuristic;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:107:28
[INFO] [stdout]     |
[INFO] [stdout] 107 |         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stdout]     |                            ^                         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 107 -         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stdout] 107 +         heuristic_total += v_heuristic + h_heuristic;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tictactoe v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:247:22
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 let (x, y) = gen_random(self.length);
[INFO] [stdout]     |                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/lib.rs:247:25
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 let (x, y) = gen_random(self.length);
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `player`
[INFO] [stdout]   --> src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     player: Symbol,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `opponent`
[INFO] [stdout]   --> src/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     opponent: Symbol,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `winner`
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     winner: Symbol,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_board`
[INFO] [stdout]    --> src/lib.rs:325:8
[INFO] [stdout]     |
[INFO] [stdout] 325 |     fn get_board(&self) -> &Board {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/heuristic_counter.rs:161:8
[INFO] [stdout]     |
[INFO] [stdout] 161 |     if (x_4_in_row(input) != 0) {
[INFO] [stdout]     |        ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 161 -     if (x_4_in_row(input) != 0) {
[INFO] [stdout] 161 +     if x_4_in_row(input) != 0 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/heuristic_counter.rs:164:8
[INFO] [stdout]     |
[INFO] [stdout] 164 |     if (o_4_in_row(input) != 0) {
[INFO] [stdout]     |        ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 164 -     if (o_4_in_row(input) != 0) {
[INFO] [stdout] 164 +     if o_4_in_row(input) != 0 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/heuristic_counter.rs:172:14
[INFO] [stdout]     |
[INFO] [stdout] 172 |     count += (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stdout]     |              ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 172 -     count += (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stdout] 172 +     count += x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input); //[# of open-2-in-a-row for me]
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/heuristic_counter.rs:173:14
[INFO] [stdout]     |
[INFO] [stdout] 173 |     count -= (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stdout]     |              ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 173 -     count -= (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stdout] 173 +     count -= o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input); //[# of open-2-in-a-row for opponent]
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/heuristic_counter.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 179 |     if (o_4_in_row(input) != 0) {
[INFO] [stdout]     |        ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 179 -     if (o_4_in_row(input) != 0) {
[INFO] [stdout] 179 +     if o_4_in_row(input) != 0 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/heuristic_counter.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     if (x_4_in_row(input) != 0) {
[INFO] [stdout]     |        ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 182 -     if (x_4_in_row(input) != 0) {
[INFO] [stdout] 182 +     if x_4_in_row(input) != 0 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/heuristic_counter.rs:190:14
[INFO] [stdout]     |
[INFO] [stdout] 190 |     count += (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stdout]     |              ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 190 -     count += (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stdout] 190 +     count += o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input); //[# of open-2-in-a-row for me]
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/heuristic_counter.rs:191:14
[INFO] [stdout]     |
[INFO] [stdout] 191 |     count -= (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stdout]     |              ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 191 -     count -= (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stdout] 191 +     count -= x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input); //[# of open-2-in-a-row for opponent]
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/heuristic_counter.rs:543:18
[INFO] [stdout]     |
[INFO] [stdout] 543 |         count += (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stdout]     |                  ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 543 -         count += (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stdout] 543 +         count += x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input); //[# of open-2-in-a-row for me]
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/heuristic_counter.rs:545:18
[INFO] [stdout]     |
[INFO] [stdout] 545 |         count -= (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stdout]     |                  ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 545 -         count -= (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stdout] 545 +         count -= o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input); //[# of open-2-in-a-row for opponent]
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:82:28
[INFO] [stdout]    |
[INFO] [stdout] 82 |         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stdout]    |                            ^                         ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stdout] 82 +         heuristic_total += v_heuristic + h_heuristic;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:107:28
[INFO] [stdout]     |
[INFO] [stdout] 107 |         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stdout]     |                            ^                         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 107 -         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stdout] 107 +         heuristic_total += v_heuristic + h_heuristic;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:247:22
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 let (x, y) = gen_random(self.length);
[INFO] [stdout]     |                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/lib.rs:247:25
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 let (x, y) = gen_random(self.length);
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `player`
[INFO] [stdout]   --> src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     player: Symbol,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `opponent`
[INFO] [stdout]   --> src/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     opponent: Symbol,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `winner`
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     winner: Symbol,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.43s
[INFO] running `Command { std: "docker" "inspect" "d6e95d040dab946f81297fcac782635f5dfaaceca8cddf58664e65b6741d6965", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6e95d040dab946f81297fcac782635f5dfaaceca8cddf58664e65b6741d6965", kill_on_drop: false }`
[INFO] [stdout] d6e95d040dab946f81297fcac782635f5dfaaceca8cddf58664e65b6741d6965
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6bf62583dc0097643f3a92e38e207d16400b8f684e8b8c045f86af337ab4e76b
[INFO] running `Command { std: "docker" "start" "-a" "6bf62583dc0097643f3a92e38e207d16400b8f684e8b8c045f86af337ab4e76b", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/lib.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/heuristic_counter.rs:161:8
[INFO] [stderr]     |
[INFO] [stderr] 161 |     if (x_4_in_row(input) != 0) {
[INFO] [stderr]     |        ^                      ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 161 -     if (x_4_in_row(input) != 0) {
[INFO] [stderr] 161 +     if x_4_in_row(input) != 0 {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/heuristic_counter.rs:164:8
[INFO] [stderr]     |
[INFO] [stderr] 164 |     if (o_4_in_row(input) != 0) {
[INFO] [stderr]     |        ^                      ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 164 -     if (o_4_in_row(input) != 0) {
[INFO] [stderr] 164 +     if o_4_in_row(input) != 0 {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/heuristic_counter.rs:172:14
[INFO] [stderr]     |
[INFO] [stderr] 172 |     count += (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stderr]     |              ^                                                     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 172 -     count += (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stderr] 172 +     count += x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input); //[# of open-2-in-a-row for me]
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/heuristic_counter.rs:173:14
[INFO] [stderr]     |
[INFO] [stderr] 173 |     count -= (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stderr]     |              ^                                                     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 173 -     count -= (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stderr] 173 +     count -= o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input); //[# of open-2-in-a-row for opponent]
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/heuristic_counter.rs:179:8
[INFO] [stderr]     |
[INFO] [stderr] 179 |     if (o_4_in_row(input) != 0) {
[INFO] [stderr]     |        ^                      ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 179 -     if (o_4_in_row(input) != 0) {
[INFO] [stderr] 179 +     if o_4_in_row(input) != 0 {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/heuristic_counter.rs:182:8
[INFO] [stderr]     |
[INFO] [stderr] 182 |     if (x_4_in_row(input) != 0) {
[INFO] [stderr]     |        ^                      ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 182 -     if (x_4_in_row(input) != 0) {
[INFO] [stderr] 182 +     if x_4_in_row(input) != 0 {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/heuristic_counter.rs:190:14
[INFO] [stderr]     |
[INFO] [stderr] 190 |     count += (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stderr]     |              ^                                                     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 190 -     count += (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stderr] 190 +     count += o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input); //[# of open-2-in-a-row for me]
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/heuristic_counter.rs:191:14
[INFO] [stderr]     |
[INFO] [stderr] 191 |     count -= (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stderr]     |              ^                                                     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 191 -     count -= (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stderr] 191 +     count -= x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input); //[# of open-2-in-a-row for opponent]
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/lib.rs:82:28
[INFO] [stderr]    |
[INFO] [stderr] 82 |         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stderr]    |                            ^                         ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 82 -         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stderr] 82 +         heuristic_total += v_heuristic + h_heuristic;
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:107:28
[INFO] [stderr]     |
[INFO] [stderr] 107 |         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stderr]     |                            ^                         ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 107 -         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stderr] 107 +         heuristic_total += v_heuristic + h_heuristic;
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:247:22
[INFO] [stderr]     |
[INFO] [stderr] 247 |                 let (x, y) = gen_random(self.length);
[INFO] [stderr]     |                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/lib.rs:247:25
[INFO] [stderr]     |
[INFO] [stderr] 247 |                 let (x, y) = gen_random(self.length);
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `player`
[INFO] [stderr]   --> src/lib.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     player: Symbol,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `opponent`
[INFO] [stderr]   --> src/lib.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     opponent: Symbol,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `winner`
[INFO] [stderr]   --> src/lib.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     winner: Symbol,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_board`
[INFO] [stderr]    --> src/lib.rs:325:8
[INFO] [stderr]     |
[INFO] [stderr] 325 |     fn get_board(&self) -> &Board {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/heuristic_counter.rs:543:18
[INFO] [stderr]     |
[INFO] [stderr] 543 |         count += (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stderr]     |                  ^                                                     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 543 -         count += (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stderr] 543 +         count += x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input); //[# of open-2-in-a-row for me]
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/heuristic_counter.rs:545:18
[INFO] [stderr]     |
[INFO] [stderr] 545 |         count -= (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stderr]     |                  ^                                                     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 545 -         count -= (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stderr] 545 +         count -= o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input); //[# of open-2-in-a-row for opponent]
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: `tictactoe` (lib) generated 17 warnings
[INFO] [stderr] warning: `tictactoe` (lib test) generated 18 warnings (16 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tictactoe-7a5c428dc8a99ce1)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test heuristic_counter::test::test_x_1_empty_3_in_row ... ok
[INFO] [stdout] test heuristic_counter::test::test_x_2_empty_3_in_row ... ok
[INFO] [stdout] test heuristic_counter::test::test_x_2_empty_2_in_row ... ok
[INFO] [stdout] test test::test_move ... ok
[INFO] [stdout] test test::test_xy_to_linear ... ok
[INFO] [stdout] test test::test_get_all_potential_moves ... ok
[INFO] [stdout] test heuristic_counter::test::test_x_1_empty_2_in_row ... ok
[INFO] [stdout] test heuristic_counter::test::test_heuristic ... ok
[INFO] [stdout] test test::test_terminal ... ok
[INFO] [stdout] test test::test_heuristic ... ok
[INFO] [stdout] test test::test_agent_move ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 14.45s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tictactoe-ec453743a65e0c6d)
[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] [stderr]    Doc-tests tictactoe
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> /opt/rustwide/workdir/src/heuristic_counter.rs:161:8
[INFO] [stderr]     |
[INFO] [stderr] 161 |     if (x_4_in_row(input) != 0) {
[INFO] [stderr]     |        ^                      ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 161 -     if (x_4_in_row(input) != 0) {
[INFO] [stderr] 161 +     if x_4_in_row(input) != 0 {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> /opt/rustwide/workdir/src/heuristic_counter.rs:164:8
[INFO] [stderr]     |
[INFO] [stderr] 164 |     if (o_4_in_row(input) != 0) {
[INFO] [stderr]     |        ^                      ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 164 -     if (o_4_in_row(input) != 0) {
[INFO] [stderr] 164 +     if o_4_in_row(input) != 0 {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/heuristic_counter.rs:172:14
[INFO] [stderr]     |
[INFO] [stderr] 172 |     count += (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stderr]     |              ^                                                     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 172 -     count += (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stderr] 172 +     count += x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input); //[# of open-2-in-a-row for me]
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/heuristic_counter.rs:173:14
[INFO] [stderr]     |
[INFO] [stderr] 173 |     count -= (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stderr]     |              ^                                                     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 173 -     count -= (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stderr] 173 +     count -= o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input); //[# of open-2-in-a-row for opponent]
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> /opt/rustwide/workdir/src/heuristic_counter.rs:179:8
[INFO] [stderr]     |
[INFO] [stderr] 179 |     if (o_4_in_row(input) != 0) {
[INFO] [stderr]     |        ^                      ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 179 -     if (o_4_in_row(input) != 0) {
[INFO] [stderr] 179 +     if o_4_in_row(input) != 0 {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> /opt/rustwide/workdir/src/heuristic_counter.rs:182:8
[INFO] [stderr]     |
[INFO] [stderr] 182 |     if (x_4_in_row(input) != 0) {
[INFO] [stderr]     |        ^                      ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 182 -     if (x_4_in_row(input) != 0) {
[INFO] [stderr] 182 +     if x_4_in_row(input) != 0 {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/heuristic_counter.rs:190:14
[INFO] [stderr]     |
[INFO] [stderr] 190 |     count += (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stderr]     |              ^                                                     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 190 -     count += (o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input)); //[# of open-2-in-a-row for me]
[INFO] [stderr] 190 +     count += o_2_empty_2_in_row(input) + o_1_empty_2_in_row(input); //[# of open-2-in-a-row for me]
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/heuristic_counter.rs:191:14
[INFO] [stderr]     |
[INFO] [stderr] 191 |     count -= (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stderr]     |              ^                                                     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 191 -     count -= (x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input)); //[# of open-2-in-a-row for opponent]
[INFO] [stderr] 191 +     count -= x_2_empty_2_in_row(input) + x_1_empty_2_in_row(input); //[# of open-2-in-a-row for opponent]
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:82:28
[INFO] [stderr]    |
[INFO] [stderr] 82 |         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stderr]    |                            ^                         ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 82 -         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stderr] 82 +         heuristic_total += v_heuristic + h_heuristic;
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:107:28
[INFO] [stderr]     |
[INFO] [stderr] 107 |         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stderr]     |                            ^                         ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 107 -         heuristic_total += (v_heuristic + h_heuristic);
[INFO] [stderr] 107 +         heuristic_total += v_heuristic + h_heuristic;
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stdout] running 0 tests
[INFO] [stderr] 
[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" "6bf62583dc0097643f3a92e38e207d16400b8f684e8b8c045f86af337ab4e76b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf62583dc0097643f3a92e38e207d16400b8f684e8b8c045f86af337ab4e76b", kill_on_drop: false }`
[INFO] [stdout] 6bf62583dc0097643f3a92e38e207d16400b8f684e8b8c045f86af337ab4e76b