[INFO] cloning repository https://github.com/madoromizm/rust_reversi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/madoromizm/rust_reversi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadoromizm%2Frust_reversi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadoromizm%2Frust_reversi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 586dd9eeb9ceb3c66f4eddd62b2b011c0f9d52e2
[INFO] testing madoromizm/rust_reversi against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadoromizm%2Frust_reversi" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/madoromizm/rust_reversi on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/madoromizm/rust_reversi
[INFO] finished tweaking git repo https://github.com/madoromizm/rust_reversi
[INFO] tweaked toml for git repo https://github.com/madoromizm/rust_reversi written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/madoromizm/rust_reversi already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fed2d03e94b5336dd4560a54a8a49d69042b7ad99b936ecf09f9869218bc5b28
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fed2d03e94b5336dd4560a54a8a49d69042b7ad99b936ecf09f9869218bc5b28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fed2d03e94b5336dd4560a54a8a49d69042b7ad99b936ecf09f9869218bc5b28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fed2d03e94b5336dd4560a54a8a49d69042b7ad99b936ecf09f9869218bc5b28", kill_on_drop: false }`
[INFO] [stdout] fed2d03e94b5336dd4560a54a8a49d69042b7ad99b936ecf09f9869218bc5b28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04a3a19929004a8dc669888bfb7753daae340c6a0c2624b8b065ae87b647dfad
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "04a3a19929004a8dc669888bfb7753daae340c6a0c2624b8b065ae87b647dfad", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_reversi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::error::ReversiError`
[INFO] [stdout]  --> src/view/game_view.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::error::ReversiError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/service/reversi_service.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `BufWriter`, `Read`, `Write`, `self`
[INFO] [stdout]  --> src/service/reversi_service.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufRead, BufReader, BufWriter};
[INFO] [stdout]   |               ^^^^  ^^^^  ^^^^^  ^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]  --> src/service/reversi_service.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use regex::Regex;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::domain_model::cell_pos::CellPos`
[INFO] [stdout]  --> src/service/reversi_service.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::domain_model::cell_pos::CellPos;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::domain_model::board::Board`
[INFO] [stdout]   --> src/service/reversi_service.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::domain_model::board::Board;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `row` is never read
[INFO] [stdout]   --> src/view/game_view.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut row = 0usize;
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `col` is never read
[INFO] [stdout]   --> src/view/game_view.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut col = 0usize;
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]    --> src/view/game_view.rs:127:21
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn show_history(state: &ReversiState) {
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `show_history`
[INFO] [stdout]    --> src/view/game_view.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn show_history(state: &ReversiState) {
[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: `count_white_stones`
[INFO] [stdout]   --> src/domain_model/board.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn count_white_stones(&self) -> i8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `redo`
[INFO] [stdout]   --> src/domain_model/reversi_state.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn redo(&mut self) -> Result<(), ReversiError> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pass`
[INFO] [stdout]   --> src/service/reversi_service.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub fn pass(state: &mut ReversiState) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_history_size`
[INFO] [stdout]   --> src/service/reversi_service.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn get_history_size(state: &ReversiState) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `undo`
[INFO] [stdout]   --> src/service/reversi_service.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub fn undo(state: &mut ReversiState) -> Result<(), ReversiError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `redo`
[INFO] [stdout]   --> src/service/reversi_service.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn redo(state: &mut ReversiState) -> Result<(), ReversiError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/domain_model/board.rs:52:11
[INFO] [stdout]    |
[INFO] [stdout] 52 |         !(row < 0 || 9 < row || col < 0 || 9 < col)
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/domain_model/board.rs:52:33
[INFO] [stdout]    |
[INFO] [stdout] 52 |         !(row < 0 || 9 < row || col < 0 || 9 < col)
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/service/reversi_service.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     state.board.set_cell(row, col, stone);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.26s
[INFO] running `Command { std: "docker" "inspect" "04a3a19929004a8dc669888bfb7753daae340c6a0c2624b8b065ae87b647dfad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04a3a19929004a8dc669888bfb7753daae340c6a0c2624b8b065ae87b647dfad", kill_on_drop: false }`
[INFO] [stdout] 04a3a19929004a8dc669888bfb7753daae340c6a0c2624b8b065ae87b647dfad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a40e9906b10c675aed93566f1632f45c815350dca40b6bd8b981238fbd6f3fd4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a40e9906b10c675aed93566f1632f45c815350dca40b6bd8b981238fbd6f3fd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_reversi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::error::ReversiError`
[INFO] [stdout]  --> src/view/game_view.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::error::ReversiError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/service/reversi_service.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `BufWriter`, `Read`, `Write`, `self`
[INFO] [stdout]  --> src/service/reversi_service.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufRead, BufReader, BufWriter};
[INFO] [stdout]   |               ^^^^  ^^^^  ^^^^^  ^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]  --> src/service/reversi_service.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use regex::Regex;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::domain_model::cell_pos::CellPos`
[INFO] [stdout]  --> src/service/reversi_service.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::domain_model::cell_pos::CellPos;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::domain_model::board::Board`
[INFO] [stdout]   --> src/service/reversi_service.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::domain_model::board::Board;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `row` is never read
[INFO] [stdout]   --> src/view/game_view.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut row = 0usize;
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `col` is never read
[INFO] [stdout]   --> src/view/game_view.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut col = 0usize;
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]    --> src/view/game_view.rs:127:21
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn show_history(state: &ReversiState) {
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `show_history`
[INFO] [stdout]    --> src/view/game_view.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn show_history(state: &ReversiState) {
[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: `count_white_stones`
[INFO] [stdout]   --> src/domain_model/board.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn count_white_stones(&self) -> i8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `redo`
[INFO] [stdout]   --> src/domain_model/reversi_state.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn redo(&mut self) -> Result<(), ReversiError> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pass`
[INFO] [stdout]   --> src/service/reversi_service.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub fn pass(state: &mut ReversiState) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_history_size`
[INFO] [stdout]   --> src/service/reversi_service.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn get_history_size(state: &ReversiState) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `undo`
[INFO] [stdout]   --> src/service/reversi_service.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub fn undo(state: &mut ReversiState) -> Result<(), ReversiError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `redo`
[INFO] [stdout]   --> src/service/reversi_service.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn redo(state: &mut ReversiState) -> Result<(), ReversiError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/domain_model/board.rs:52:11
[INFO] [stdout]    |
[INFO] [stdout] 52 |         !(row < 0 || 9 < row || col < 0 || 9 < col)
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/domain_model/board.rs:52:33
[INFO] [stdout]    |
[INFO] [stdout] 52 |         !(row < 0 || 9 < row || col < 0 || 9 < col)
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/service/reversi_service.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     state.board.set_cell(row, col, stone);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "a40e9906b10c675aed93566f1632f45c815350dca40b6bd8b981238fbd6f3fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a40e9906b10c675aed93566f1632f45c815350dca40b6bd8b981238fbd6f3fd4", kill_on_drop: false }`
[INFO] [stdout] a40e9906b10c675aed93566f1632f45c815350dca40b6bd8b981238fbd6f3fd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c74d6d6122fc8f8f5184ef14ca52df86a7c6ba61e590b850a085e7f1578887d5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c74d6d6122fc8f8f5184ef14ca52df86a7c6ba61e590b850a085e7f1578887d5", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::error::ReversiError`
[INFO] [stderr]  --> src/view/game_view.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::error::ReversiError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/service/reversi_service.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`, `BufWriter`, `Read`, `Write`, `self`
[INFO] [stderr]  --> src/service/reversi_service.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Read, Write, BufRead, BufReader, BufWriter};
[INFO] [stderr]   |               ^^^^  ^^^^  ^^^^^  ^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `regex::Regex`
[INFO] [stderr]  --> src/service/reversi_service.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use regex::Regex;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::domain_model::cell_pos::CellPos`
[INFO] [stderr]  --> src/service/reversi_service.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::domain_model::cell_pos::CellPos;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::domain_model::board::Board`
[INFO] [stderr]   --> src/service/reversi_service.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::domain_model::board::Board;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `row` is never read
[INFO] [stderr]   --> src/view/game_view.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let mut row = 0usize;
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `col` is never read
[INFO] [stderr]   --> src/view/game_view.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let mut col = 0usize;
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]    --> src/view/game_view.rs:127:21
[INFO] [stderr]     |
[INFO] [stderr] 127 | pub fn show_history(state: &ReversiState) {
[INFO] [stderr]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `show_history`
[INFO] [stderr]    --> src/view/game_view.rs:127:8
[INFO] [stderr]     |
[INFO] [stderr] 127 | pub fn show_history(state: &ReversiState) {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `count_white_stones`
[INFO] [stderr]   --> src/domain_model/board.rs:97:12
[INFO] [stderr]    |
[INFO] [stderr] 97 |     pub fn count_white_stones(&self) -> i8 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `redo`
[INFO] [stderr]   --> src/domain_model/reversi_state.rs:73:12
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn redo(&mut self) -> Result<(), ReversiError> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pass`
[INFO] [stderr]   --> src/service/reversi_service.rs:76:8
[INFO] [stderr]    |
[INFO] [stderr] 76 | pub fn pass(state: &mut ReversiState) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_history_size`
[INFO] [stderr]   --> src/service/reversi_service.rs:80:8
[INFO] [stderr]    |
[INFO] [stderr] 80 | pub fn get_history_size(state: &ReversiState) -> usize {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `undo`
[INFO] [stderr]   --> src/service/reversi_service.rs:86:8
[INFO] [stderr]    |
[INFO] [stderr] 86 | pub fn undo(state: &mut ReversiState) -> Result<(), ReversiError> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `redo`
[INFO] [stderr]   --> src/service/reversi_service.rs:90:8
[INFO] [stderr]    |
[INFO] [stderr] 90 | pub fn redo(state: &mut ReversiState) -> Result<(), ReversiError> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> src/domain_model/board.rs:52:11
[INFO] [stderr]    |
[INFO] [stderr] 52 |         !(row < 0 || 9 < row || col < 0 || 9 < col)
[INFO] [stderr]    |           ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> src/domain_model/board.rs:52:33
[INFO] [stderr]    |
[INFO] [stderr] 52 |         !(row < 0 || 9 < row || col < 0 || 9 < col)
[INFO] [stderr]    |                                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/service/reversi_service.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     state.board.set_cell(row, col, stone);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_reversi-d3f9a8fb89c3a692
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c74d6d6122fc8f8f5184ef14ca52df86a7c6ba61e590b850a085e7f1578887d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c74d6d6122fc8f8f5184ef14ca52df86a7c6ba61e590b850a085e7f1578887d5", kill_on_drop: false }`
[INFO] [stdout] c74d6d6122fc8f8f5184ef14ca52df86a7c6ba61e590b850a085e7f1578887d5