[INFO] updating cached repository moratorium08/reversi-ai
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/moratorium08/reversi-ai
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/moratorium08/reversi-ai" "work/ex/beta-1.38-1/sources/1.37.0/gh/moratorium08/reversi-ai"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/moratorium08/reversi-ai'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/moratorium08/reversi-ai" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/moratorium08/reversi-ai"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/moratorium08/reversi-ai'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 152e93a6f9e170378dca6f9ef0b878a155ba35aa
[INFO] sha for GitHub repo moratorium08/reversi-ai: 152e93a6f9e170378dca6f9ef0b878a155ba35aa
[INFO] validating manifest of moratorium08/reversi-ai on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of moratorium08/reversi-ai on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing moratorium08/reversi-ai
[INFO] finished frobbing moratorium08/reversi-ai
[INFO] frobbed toml for moratorium08/reversi-ai written to work/ex/beta-1.38-1/sources/1.37.0/gh/moratorium08/reversi-ai/Cargo.toml
[INFO] started frobbing moratorium08/reversi-ai
[INFO] finished frobbing moratorium08/reversi-ai
[INFO] frobbed toml for moratorium08/reversi-ai written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/moratorium08/reversi-ai/Cargo.toml
[INFO] crate moratorium08/reversi-ai already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing moratorium08/reversi-ai against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/moratorium08/reversi-ai:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] d71fc24bb50d306e60ef43659260e9fb10f922b72efc15fe77461855a2255859
[INFO] running `"docker" "start" "-a" "d71fc24bb50d306e60ef43659260e9fb10f922b72efc15fe77461855a2255859"`
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling rand v0.5.4
[INFO] [stderr]    Compiling nom v4.0.0
[INFO] [stderr]    Compiling client v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/board.rs:246:28
[INFO] [stderr]     |
[INFO] [stderr] 246 |     pub fn flip(&self, p: &BitIndexable, player: Color) -> Board {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn BitIndexable`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/board.rs:401:30
[INFO] [stderr]     |
[INFO] [stderr] 401 |     fn is_valid(&self, pos: &BitIndexable, player: Color) -> bool {
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn BitIndexable`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scores`
[INFO] [stderr]   --> src/interface/game.rs:48:42
[INFO] [stderr]    |
[INFO] [stderr] 48 |                     client::Command::Bye(scores) => {
[INFO] [stderr]    |                                          ^^^^^^ help: consider prefixing with an underscore: `_scores`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/interface/game.rs:52:58
[INFO] [stderr]    |
[INFO] [stderr] 52 |                     client::Command::Start(color, oname, t) => {
[INFO] [stderr]    |                                                          ^ help: consider prefixing with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/interface/game.rs:67:21
[INFO] [stderr]    |
[INFO] [stderr] 67 |                     x => panic!("Invalid Command")
[INFO] [stderr]    |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:133:53
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:133:50
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                  ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> src/interface/game.rs:133:56
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                        ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:133:42
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                          ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interface/game.rs:136:21
[INFO] [stderr]     |
[INFO] [stderr] 136 |                     x => panic!("Invalid Command")
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:153:53
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:153:50
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                  ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> src/interface/game.rs:153:56
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                        ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:153:42
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                          ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interface/game.rs:156:21
[INFO] [stderr]     |
[INFO] [stderr] 156 |                     x => panic!("Invalid Command")
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:163:24
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                        ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:163:53
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:163:60
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                            ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reason`
[INFO] [stderr]    --> src/interface/game.rs:163:67
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                                   ^^^^^^ help: consider prefixing with an underscore: `_reason`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `epoch` is assigned to, but never used
[INFO] [stderr]   --> src/player/learning/analysis.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |             let mut epoch = 0u8;
[INFO] [stderr]    |                     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_epoch` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/player/learning/analysis.rs:159:17
[INFO] [stderr]     |
[INFO] [stderr] 159 |             let x = 0..1;
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `epoch` is assigned to, but never used
[INFO] [stderr]    --> src/player/learning/analysis.rs:195:21
[INFO] [stderr]     |
[INFO] [stderr] 195 |             let mut epoch = 0u8;
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_epoch` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 233 |     gen_analyzer!(diag4, 81,  "DIAG4");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 234 |     gen_analyzer!(diag5, 243, "DIAG5");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 235 |     gen_analyzer!(diag6, 729, "DIAG6");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 236 |     gen_analyzer!(diag7, 2187, "DIAG7");
[INFO] [stderr]     |     ------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 237 |     gen_analyzer!(diag8, 6561, "DIAG8");
[INFO] [stderr]     |     ------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 238 |     gen_analyzer!(hor_vert2, 6561, "HOR_VERT2");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 239 |     gen_analyzer!(hor_vert3, 6561, "HOR_VERT3");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 240 |     gen_analyzer!(hor_vert4, 6561, "HOR_VERT4");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 241 |     gen_analyzer!(edge2x, 59049, "EDGE2X");
[INFO] [stderr]     |     --------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 242 |     gen_analyzer!(corner2x5, 59049, "CORNER2X5");
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 243 |     gen_analyzer!(corner3x3, 19683, "CORNER3X3");
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 244 |     gen_analyzer!(corner2x2, 81, "CORNER2X2");
[INFO] [stderr]     |     ------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/interface/tcp_client.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let mut ret: Result<client::Command, String>;
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/player/learning/analysis.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn new(mut reader: BufReader<File>, output_dir: &'a str) -> Analyzer {
[INFO] [stderr]    |            ----^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_valid`
[INFO] [stderr]    --> src/board.rs:401:5
[INFO] [stderr]     |
[INFO] [stderr] 401 |     fn is_valid(&self, pos: &BitIndexable, player: Color) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `proc_end`
[INFO] [stderr]    --> src/interface/game.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `map1`
[INFO] [stderr]   --> src/player/linear_evaluator.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | / const map1: [[i64; 8]; 8] = [
[INFO] [stderr] 17 | |     [1000, -40, 5, 5, 5, 5, -40, 1000],
[INFO] [stderr] 18 | |     [-40, -40, 1, 1, 1, 1, -40, -40],
[INFO] [stderr] 19 | |     [5, 1, 1, 1, 1, 1, 1, 5],
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     [1000, -40, 5, 5, 5, 5, -40, 1000],
[INFO] [stderr] 25 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/interface/tcp_client.rs:84:17
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 self.writer.flush();
[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: constant `map1` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 | const map1: [[i64; 8]; 8] = [
[INFO] [stderr]    |       ^^^^ help: convert the identifier to upper case: `MAP1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `feature_functions` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:83:11
[INFO] [stderr]    |
[INFO] [stderr] 83 | pub const feature_functions: [fn(board::Board) -> f32; 12] = [
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `FEATURE_FUNCTIONS`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `feature_names` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:87:11
[INFO] [stderr]    |
[INFO] [stderr] 87 | pub const feature_names: [&str; 12] = [
[INFO] [stderr]    |           ^^^^^^^^^^^^^ help: convert the identifier to upper case: `FEATURE_NAMES`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |             create_dir(path);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:170:25
[INFO] [stderr]     |
[INFO] [stderr] 170 |                         write!(&mut writer, "{}", if his.result == MatchResult::Black{1}else{0});
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:173:29
[INFO] [stderr]     |
[INFO] [stderr] 173 |                             write!(&mut writer, ",{:.3}", item);
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:175:25
[INFO] [stderr]     |
[INFO] [stderr] 175 |                         write!(&mut writer, "\n");
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/board.rs:246:28
[INFO] [stderr]     |
[INFO] [stderr] 246 |     pub fn flip(&self, p: &BitIndexable, player: Color) -> Board {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn BitIndexable`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/board.rs:401:30
[INFO] [stderr]     |
[INFO] [stderr] 401 |     fn is_valid(&self, pos: &BitIndexable, player: Color) -> bool {
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn BitIndexable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/board.rs:246:28
[INFO] [stderr]     |
[INFO] [stderr] 246 |     pub fn flip(&self, p: &BitIndexable, player: Color) -> Board {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn BitIndexable`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/board.rs:401:30
[INFO] [stderr]     |
[INFO] [stderr] 401 |     fn is_valid(&self, pos: &BitIndexable, player: Color) -> bool {
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn BitIndexable`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scores`
[INFO] [stderr]   --> src/interface/game.rs:48:42
[INFO] [stderr]    |
[INFO] [stderr] 48 |                     client::Command::Bye(scores) => {
[INFO] [stderr]    |                                          ^^^^^^ help: consider prefixing with an underscore: `_scores`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/interface/game.rs:52:58
[INFO] [stderr]    |
[INFO] [stderr] 52 |                     client::Command::Start(color, oname, t) => {
[INFO] [stderr]    |                                                          ^ help: consider prefixing with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/interface/game.rs:67:21
[INFO] [stderr]    |
[INFO] [stderr] 67 |                     x => panic!("Invalid Command")
[INFO] [stderr]    |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:133:53
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:133:50
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                  ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> src/interface/game.rs:133:56
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                        ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:133:42
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                          ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interface/game.rs:136:21
[INFO] [stderr]     |
[INFO] [stderr] 136 |                     x => panic!("Invalid Command")
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:153:53
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:153:50
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                  ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> src/interface/game.rs:153:56
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                        ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:153:42
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                          ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interface/game.rs:156:21
[INFO] [stderr]     |
[INFO] [stderr] 156 |                     x => panic!("Invalid Command")
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:163:24
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                        ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:163:53
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:163:60
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                            ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reason`
[INFO] [stderr]    --> src/interface/game.rs:163:67
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                                   ^^^^^^ help: consider prefixing with an underscore: `_reason`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `epoch` is assigned to, but never used
[INFO] [stderr]   --> src/player/learning/analysis.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |             let mut epoch = 0u8;
[INFO] [stderr]    |                     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_epoch` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/player/learning/analysis.rs:159:17
[INFO] [stderr]     |
[INFO] [stderr] 159 |             let x = 0..1;
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `epoch` is assigned to, but never used
[INFO] [stderr]    --> src/player/learning/analysis.rs:195:21
[INFO] [stderr]     |
[INFO] [stderr] 195 |             let mut epoch = 0u8;
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_epoch` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 233 |     gen_analyzer!(diag4, 81,  "DIAG4");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 234 |     gen_analyzer!(diag5, 243, "DIAG5");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 235 |     gen_analyzer!(diag6, 729, "DIAG6");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 236 |     gen_analyzer!(diag7, 2187, "DIAG7");
[INFO] [stderr]     |     ------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 237 |     gen_analyzer!(diag8, 6561, "DIAG8");
[INFO] [stderr]     |     ------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 238 |     gen_analyzer!(hor_vert2, 6561, "HOR_VERT2");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 239 |     gen_analyzer!(hor_vert3, 6561, "HOR_VERT3");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 240 |     gen_analyzer!(hor_vert4, 6561, "HOR_VERT4");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 241 |     gen_analyzer!(edge2x, 59049, "EDGE2X");
[INFO] [stderr]     |     --------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 242 |     gen_analyzer!(corner2x5, 59049, "CORNER2X5");
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 243 |     gen_analyzer!(corner3x3, 19683, "CORNER3X3");
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 244 |     gen_analyzer!(corner2x2, 81, "CORNER2X2");
[INFO] [stderr]     |     ------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |         Ok(mut g) => g.main_loop(),
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/interface/tcp_client.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let mut ret: Result<client::Command, String>;
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scores`
[INFO] [stderr]   --> src/interface/game.rs:48:42
[INFO] [stderr]    |
[INFO] [stderr] 48 |                     client::Command::Bye(scores) => {
[INFO] [stderr]    |                                          ^^^^^^ help: consider prefixing with an underscore: `_scores`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/interface/game.rs:52:58
[INFO] [stderr]    |
[INFO] [stderr] 52 |                     client::Command::Start(color, oname, t) => {
[INFO] [stderr]    |                                                          ^ help: consider prefixing with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/interface/game.rs:67:21
[INFO] [stderr]    |
[INFO] [stderr] 67 |                     x => panic!("Invalid Command")
[INFO] [stderr]    |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:133:53
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:133:50
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                  ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> src/interface/game.rs:133:56
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                        ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:133:42
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                          ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interface/game.rs:136:21
[INFO] [stderr]     |
[INFO] [stderr] 136 |                     x => panic!("Invalid Command")
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:153:53
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:153:50
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                  ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> src/interface/game.rs:153:56
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                        ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:153:42
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                          ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interface/game.rs:156:21
[INFO] [stderr]     |
[INFO] [stderr] 156 |                     x => panic!("Invalid Command")
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:163:24
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                        ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:163:53
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:163:60
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                            ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reason`
[INFO] [stderr]    --> src/interface/game.rs:163:67
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                                   ^^^^^^ help: consider prefixing with an underscore: `_reason`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `epoch` is assigned to, but never used
[INFO] [stderr]   --> src/player/learning/analysis.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |             let mut epoch = 0u8;
[INFO] [stderr]    |                     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_epoch` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/player/learning/analysis.rs:159:17
[INFO] [stderr]     |
[INFO] [stderr] 159 |             let x = 0..1;
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `epoch` is assigned to, but never used
[INFO] [stderr]    --> src/player/learning/analysis.rs:195:21
[INFO] [stderr]     |
[INFO] [stderr] 195 |             let mut epoch = 0u8;
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_epoch` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 233 |     gen_analyzer!(diag4, 81,  "DIAG4");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 234 |     gen_analyzer!(diag5, 243, "DIAG5");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 235 |     gen_analyzer!(diag6, 729, "DIAG6");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 236 |     gen_analyzer!(diag7, 2187, "DIAG7");
[INFO] [stderr]     |     ------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 237 |     gen_analyzer!(diag8, 6561, "DIAG8");
[INFO] [stderr]     |     ------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 238 |     gen_analyzer!(hor_vert2, 6561, "HOR_VERT2");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 239 |     gen_analyzer!(hor_vert3, 6561, "HOR_VERT3");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 240 |     gen_analyzer!(hor_vert4, 6561, "HOR_VERT4");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 241 |     gen_analyzer!(edge2x, 59049, "EDGE2X");
[INFO] [stderr]     |     --------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 242 |     gen_analyzer!(corner2x5, 59049, "CORNER2X5");
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 243 |     gen_analyzer!(corner3x3, 19683, "CORNER3X3");
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 244 |     gen_analyzer!(corner2x2, 81, "CORNER2X2");
[INFO] [stderr]     |     ------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/interface/tcp_client.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let mut ret: Result<client::Command, String>;
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/player/learning/analysis.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn new(mut reader: BufReader<File>, output_dir: &'a str) -> Analyzer {
[INFO] [stderr]    |            ----^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/player/learning/analysis.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn new(mut reader: BufReader<File>, output_dir: &'a str) -> Analyzer {
[INFO] [stderr]    |            ----^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_valid`
[INFO] [stderr]    --> src/board.rs:401:5
[INFO] [stderr]     |
[INFO] [stderr] 401 |     fn is_valid(&self, pos: &BitIndexable, player: Color) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `proc_end`
[INFO] [stderr]    --> src/interface/game.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `map1`
[INFO] [stderr]   --> src/player/linear_evaluator.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | / const map1: [[i64; 8]; 8] = [
[INFO] [stderr] 17 | |     [1000, -40, 5, 5, 5, 5, -40, 1000],
[INFO] [stderr] 18 | |     [-40, -40, 1, 1, 1, 1, -40, -40],
[INFO] [stderr] 19 | |     [5, 1, 1, 1, 1, 1, 1, 5],
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     [1000, -40, 5, 5, 5, 5, -40, 1000],
[INFO] [stderr] 25 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_valid`
[INFO] [stderr]    --> src/board.rs:401:5
[INFO] [stderr]     |
[INFO] [stderr] 401 |     fn is_valid(&self, pos: &BitIndexable, player: Color) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `proc_end`
[INFO] [stderr]    --> src/interface/game.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `map1`
[INFO] [stderr]   --> src/player/linear_evaluator.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | / const map1: [[i64; 8]; 8] = [
[INFO] [stderr] 17 | |     [1000, -40, 5, 5, 5, 5, -40, 1000],
[INFO] [stderr] 18 | |     [-40, -40, 1, 1, 1, 1, -40, -40],
[INFO] [stderr] 19 | |     [5, 1, 1, 1, 1, 1, 1, 5],
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     [1000, -40, 5, 5, 5, 5, -40, 1000],
[INFO] [stderr] 25 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | /     match game::Game::new(client, player, NAME) {
[INFO] [stderr] 36 | |         Ok(mut g) => g.main_loop(),
[INFO] [stderr] 37 | |         Err(s) => panic!("Fail: {}", s),
[INFO] [stderr] 38 | |     };
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/interface/tcp_client.rs:84:17
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 self.writer.flush();
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: constant `map1` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 | const map1: [[i64; 8]; 8] = [
[INFO] [stderr]    |       ^^^^ help: convert the identifier to upper case: `MAP1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `feature_functions` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:83:11
[INFO] [stderr]    |
[INFO] [stderr] 83 | pub const feature_functions: [fn(board::Board) -> f32; 12] = [
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `FEATURE_FUNCTIONS`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `feature_names` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:87:11
[INFO] [stderr]    |
[INFO] [stderr] 87 | pub const feature_names: [&str; 12] = [
[INFO] [stderr]    |           ^^^^^^^^^^^^^ help: convert the identifier to upper case: `FEATURE_NAMES`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |             create_dir(path);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:170:25
[INFO] [stderr]     |
[INFO] [stderr] 170 |                         write!(&mut writer, "{}", if his.result == MatchResult::Black{1}else{0});
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:173:29
[INFO] [stderr]     |
[INFO] [stderr] 173 |                             write!(&mut writer, ",{:.3}", item);
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:175:25
[INFO] [stderr]     |
[INFO] [stderr] 175 |                         write!(&mut writer, "\n");
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: constant `filename` should have an upper case name
[INFO] [stderr]   --> src/analysis.rs:19:7
[INFO] [stderr]    |
[INFO] [stderr] 19 | const filename: &str = "data/data";
[INFO] [stderr]    |       ^^^^^^^^ help: convert the identifier to upper case: `FILENAME`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `output_dir` should have an upper case name
[INFO] [stderr]   --> src/analysis.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 | const output_dir: &str = "output/";
[INFO] [stderr]    |       ^^^^^^^^^^ help: convert the identifier to upper case: `OUTPUT_DIR`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/interface/tcp_client.rs:84:17
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 self.writer.flush();
[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: constant `map1` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 | const map1: [[i64; 8]; 8] = [
[INFO] [stderr]    |       ^^^^ help: convert the identifier to upper case: `MAP1`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `feature_functions` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:83:11
[INFO] [stderr]    |
[INFO] [stderr] 83 | pub const feature_functions: [fn(board::Board) -> f32; 12] = [
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `FEATURE_FUNCTIONS`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `feature_names` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:87:11
[INFO] [stderr]    |
[INFO] [stderr] 87 | pub const feature_names: [&str; 12] = [
[INFO] [stderr]    |           ^^^^^^^^^^^^^ help: convert the identifier to upper case: `FEATURE_NAMES`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |             create_dir(path);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:170:25
[INFO] [stderr]     |
[INFO] [stderr] 170 |                         write!(&mut writer, "{}", if his.result == MatchResult::Black{1}else{0});
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:173:29
[INFO] [stderr]     |
[INFO] [stderr] 173 |                             write!(&mut writer, ",{:.3}", item);
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:175:25
[INFO] [stderr]     |
[INFO] [stderr] 175 |                         write!(&mut writer, "\n");
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.88s
[INFO] running `"docker" "inspect" "d71fc24bb50d306e60ef43659260e9fb10f922b72efc15fe77461855a2255859"`
[INFO] running `"docker" "rm" "-f" "d71fc24bb50d306e60ef43659260e9fb10f922b72efc15fe77461855a2255859"`
[INFO] [stdout] d71fc24bb50d306e60ef43659260e9fb10f922b72efc15fe77461855a2255859
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/moratorium08/reversi-ai:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 026013deae62eca64e4e48f3464f2c7641a177123d6ff316c00ac1c9ae017e8b
[INFO] running `"docker" "start" "-a" "026013deae62eca64e4e48f3464f2c7641a177123d6ff316c00ac1c9ae017e8b"`
[INFO] [stderr]    Compiling client v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/board.rs:246:28
[INFO] [stderr]     |
[INFO] [stderr] 246 |     pub fn flip(&self, p: &BitIndexable, player: Color) -> Board {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn BitIndexable`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/board.rs:401:30
[INFO] [stderr]     |
[INFO] [stderr] 401 |     fn is_valid(&self, pos: &BitIndexable, player: Color) -> bool {
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn BitIndexable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/board.rs:246:28
[INFO] [stderr]     |
[INFO] [stderr] 246 |     pub fn flip(&self, p: &BitIndexable, player: Color) -> Board {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn BitIndexable`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/board.rs:401:30
[INFO] [stderr]     |
[INFO] [stderr] 401 |     fn is_valid(&self, pos: &BitIndexable, player: Color) -> bool {
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn BitIndexable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/board.rs:246:28
[INFO] [stderr]     |
[INFO] [stderr] 246 |     pub fn flip(&self, p: &BitIndexable, player: Color) -> Board {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn BitIndexable`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/board.rs:401:30
[INFO] [stderr]     |
[INFO] [stderr] 401 |     fn is_valid(&self, pos: &BitIndexable, player: Color) -> bool {
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn BitIndexable`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/interface/parser.rs:184:34
[INFO] [stderr]     |
[INFO] [stderr] 184 |                 (x, Command::Bye(v)) => { panic!("hoge={}", x); }
[INFO] [stderr]     |                                  ^ help: consider prefixing with an underscore: `_v`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scores`
[INFO] [stderr]   --> src/interface/game.rs:48:42
[INFO] [stderr]    |
[INFO] [stderr] 48 |                     client::Command::Bye(scores) => {
[INFO] [stderr]    |                                          ^^^^^^ help: consider prefixing with an underscore: `_scores`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/interface/game.rs:52:58
[INFO] [stderr]    |
[INFO] [stderr] 52 |                     client::Command::Start(color, oname, t) => {
[INFO] [stderr]    |                                                          ^ help: consider prefixing with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/interface/game.rs:67:21
[INFO] [stderr]    |
[INFO] [stderr] 67 |                     x => panic!("Invalid Command")
[INFO] [stderr]    |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:133:53
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:133:50
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                  ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> src/interface/game.rs:133:56
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                        ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:133:42
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                          ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interface/game.rs:136:21
[INFO] [stderr]     |
[INFO] [stderr] 136 |                     x => panic!("Invalid Command")
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:153:53
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:153:50
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                  ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> src/interface/game.rs:153:56
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                        ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:153:42
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                          ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interface/game.rs:156:21
[INFO] [stderr]     |
[INFO] [stderr] 156 |                     x => panic!("Invalid Command")
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:163:24
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                        ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:163:53
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:163:60
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                            ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reason`
[INFO] [stderr]    --> src/interface/game.rs:163:67
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                                   ^^^^^^ help: consider prefixing with an underscore: `_reason`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `epoch` is assigned to, but never used
[INFO] [stderr]   --> src/player/learning/analysis.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |             let mut epoch = 0u8;
[INFO] [stderr]    |                     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_epoch` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/player/learning/analysis.rs:159:17
[INFO] [stderr]     |
[INFO] [stderr] 159 |             let x = 0..1;
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `epoch` is assigned to, but never used
[INFO] [stderr]    --> src/player/learning/analysis.rs:195:21
[INFO] [stderr]     |
[INFO] [stderr] 195 |             let mut epoch = 0u8;
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_epoch` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 233 |     gen_analyzer!(diag4, 81,  "DIAG4");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 234 |     gen_analyzer!(diag5, 243, "DIAG5");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 235 |     gen_analyzer!(diag6, 729, "DIAG6");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 236 |     gen_analyzer!(diag7, 2187, "DIAG7");
[INFO] [stderr]     |     ------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 237 |     gen_analyzer!(diag8, 6561, "DIAG8");
[INFO] [stderr]     |     ------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 238 |     gen_analyzer!(hor_vert2, 6561, "HOR_VERT2");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 239 |     gen_analyzer!(hor_vert3, 6561, "HOR_VERT3");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 240 |     gen_analyzer!(hor_vert4, 6561, "HOR_VERT4");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 241 |     gen_analyzer!(edge2x, 59049, "EDGE2X");
[INFO] [stderr]     |     --------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 242 |     gen_analyzer!(corner2x5, 59049, "CORNER2X5");
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 243 |     gen_analyzer!(corner3x3, 19683, "CORNER3X3");
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 244 |     gen_analyzer!(corner2x2, 81, "CORNER2X2");
[INFO] [stderr]     |     ------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/interface/tcp_client.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let mut ret: Result<client::Command, String>;
[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: unused variable: `v`
[INFO] [stderr]    --> src/interface/parser.rs:184:34
[INFO] [stderr]     |
[INFO] [stderr] 184 |                 (x, Command::Bye(v)) => { panic!("hoge={}", x); }
[INFO] [stderr]     |                                  ^ help: consider prefixing with an underscore: `_v`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scores`
[INFO] [stderr]   --> src/interface/game.rs:48:42
[INFO] [stderr]    |
[INFO] [stderr] 48 |                     client::Command::Bye(scores) => {
[INFO] [stderr]    |                                          ^^^^^^ help: consider prefixing with an underscore: `_scores`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/interface/game.rs:52:58
[INFO] [stderr]    |
[INFO] [stderr] 52 |                     client::Command::Start(color, oname, t) => {
[INFO] [stderr]    |                                                          ^ help: consider prefixing with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/interface/game.rs:67:21
[INFO] [stderr]    |
[INFO] [stderr] 67 |                     x => panic!("Invalid Command")
[INFO] [stderr]    |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:133:53
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:133:50
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                  ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> src/interface/game.rs:133:56
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                        ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:133:42
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                          ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interface/game.rs:136:21
[INFO] [stderr]     |
[INFO] [stderr] 136 |                     x => panic!("Invalid Command")
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:153:53
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:153:50
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                  ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> src/interface/game.rs:153:56
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                        ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:153:42
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                          ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interface/game.rs:156:21
[INFO] [stderr]     |
[INFO] [stderr] 156 |                     x => panic!("Invalid Command")
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:163:24
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                        ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:163:53
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:163:60
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                            ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reason`
[INFO] [stderr]    --> src/interface/game.rs:163:67
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                                   ^^^^^^ help: consider prefixing with an underscore: `_reason`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `epoch` is assigned to, but never used
[INFO] [stderr]   --> src/player/learning/analysis.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |             let mut epoch = 0u8;
[INFO] [stderr]    |                     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_epoch` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/player/learning/analysis.rs:159:17
[INFO] [stderr]     |
[INFO] [stderr] 159 |             let x = 0..1;
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `epoch` is assigned to, but never used
[INFO] [stderr]    --> src/player/learning/analysis.rs:195:21
[INFO] [stderr]     |
[INFO] [stderr] 195 |             let mut epoch = 0u8;
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_epoch` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 233 |     gen_analyzer!(diag4, 81,  "DIAG4");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 234 |     gen_analyzer!(diag5, 243, "DIAG5");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 235 |     gen_analyzer!(diag6, 729, "DIAG6");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 236 |     gen_analyzer!(diag7, 2187, "DIAG7");
[INFO] [stderr]     |     ------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 237 |     gen_analyzer!(diag8, 6561, "DIAG8");
[INFO] [stderr]     |     ------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 238 |     gen_analyzer!(hor_vert2, 6561, "HOR_VERT2");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 239 |     gen_analyzer!(hor_vert3, 6561, "HOR_VERT3");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 240 |     gen_analyzer!(hor_vert4, 6561, "HOR_VERT4");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 241 |     gen_analyzer!(edge2x, 59049, "EDGE2X");
[INFO] [stderr]     |     --------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 242 |     gen_analyzer!(corner2x5, 59049, "CORNER2X5");
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 243 |     gen_analyzer!(corner3x3, 19683, "CORNER3X3");
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 244 |     gen_analyzer!(corner2x2, 81, "CORNER2X2");
[INFO] [stderr]     |     ------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |         Ok(mut g) => g.main_loop(),
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/interface/tcp_client.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let mut ret: Result<client::Command, String>;
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/interface/parser.rs:184:34
[INFO] [stderr]     |
[INFO] [stderr] 184 |                 (x, Command::Bye(v)) => { panic!("hoge={}", x); }
[INFO] [stderr]     |                                  ^ help: consider prefixing with an underscore: `_v`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scores`
[INFO] [stderr]   --> src/interface/game.rs:48:42
[INFO] [stderr]    |
[INFO] [stderr] 48 |                     client::Command::Bye(scores) => {
[INFO] [stderr]    |                                          ^^^^^^ help: consider prefixing with an underscore: `_scores`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/interface/game.rs:52:58
[INFO] [stderr]    |
[INFO] [stderr] 52 |                     client::Command::Start(color, oname, t) => {
[INFO] [stderr]    |                                                          ^ help: consider prefixing with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/interface/game.rs:67:21
[INFO] [stderr]    |
[INFO] [stderr] 67 |                     x => panic!("Invalid Command")
[INFO] [stderr]    |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:133:53
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:133:50
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                  ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> src/interface/game.rs:133:56
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                        ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:133:42
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                          ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interface/game.rs:136:21
[INFO] [stderr]     |
[INFO] [stderr] 136 |                     x => panic!("Invalid Command")
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:153:53
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:153:50
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                  ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> src/interface/game.rs:153:56
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                                        ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:153:42
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     client::Command::End(result, n, m, r) => {
[INFO] [stderr]     |                                          ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interface/game.rs:156:21
[INFO] [stderr]     |
[INFO] [stderr] 156 |                     x => panic!("Invalid Command")
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interface/game.rs:163:24
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                        ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/interface/game.rs:163:53
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/interface/game.rs:163:60
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                            ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reason`
[INFO] [stderr]    --> src/interface/game.rs:163:67
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |                                                                   ^^^^^^ help: consider prefixing with an underscore: `_reason`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `epoch` is assigned to, but never used
[INFO] [stderr]   --> src/player/learning/analysis.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |             let mut epoch = 0u8;
[INFO] [stderr]    |                     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_epoch` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/player/learning/analysis.rs:159:17
[INFO] [stderr]     |
[INFO] [stderr] 159 |             let x = 0..1;
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `epoch` is assigned to, but never used
[INFO] [stderr]    --> src/player/learning/analysis.rs:195:21
[INFO] [stderr]     |
[INFO] [stderr] 195 |             let mut epoch = 0u8;
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_epoch` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 233 |     gen_analyzer!(diag4, 81,  "DIAG4");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 234 |     gen_analyzer!(diag5, 243, "DIAG5");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 235 |     gen_analyzer!(diag6, 729, "DIAG6");
[INFO] [stderr]     |     ----------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 236 |     gen_analyzer!(diag7, 2187, "DIAG7");
[INFO] [stderr]     |     ------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 237 |     gen_analyzer!(diag8, 6561, "DIAG8");
[INFO] [stderr]     |     ------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 238 |     gen_analyzer!(hor_vert2, 6561, "HOR_VERT2");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 239 |     gen_analyzer!(hor_vert3, 6561, "HOR_VERT3");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 240 |     gen_analyzer!(hor_vert4, 6561, "HOR_VERT4");
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 241 |     gen_analyzer!(edge2x, 59049, "EDGE2X");
[INFO] [stderr]     |     --------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 242 |     gen_analyzer!(corner2x5, 59049, "CORNER2X5");
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 243 |     gen_analyzer!(corner3x3, 19683, "CORNER3X3");
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]    --> src/player/learning/analysis.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |             let board = self.simulate(|board: board::Board, result: MatchResult, epoch: usize| {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] ...
[INFO] [stderr] 244 |     gen_analyzer!(corner2x2, 81, "CORNER2X2");
[INFO] [stderr]     |     ------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/interface/tcp_client.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let mut ret: Result<client::Command, String>;
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/player/learning/analysis.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn new(mut reader: BufReader<File>, output_dir: &'a str) -> Analyzer {
[INFO] [stderr]    |            ----^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/player/learning/analysis.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn new(mut reader: BufReader<File>, output_dir: &'a str) -> Analyzer {
[INFO] [stderr]    |            ----^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/player/learning/analysis.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn new(mut reader: BufReader<File>, output_dir: &'a str) -> Analyzer {
[INFO] [stderr]    |            ----^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_valid`
[INFO] [stderr]    --> src/board.rs:401:5
[INFO] [stderr]     |
[INFO] [stderr] 401 |     fn is_valid(&self, pos: &BitIndexable, player: Color) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `proc_end`
[INFO] [stderr]    --> src/interface/game.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `map1`
[INFO] [stderr]   --> src/player/linear_evaluator.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | / const map1: [[i64; 8]; 8] = [
[INFO] [stderr] 17 | |     [1000, -40, 5, 5, 5, 5, -40, 1000],
[INFO] [stderr] 18 | |     [-40, -40, 1, 1, 1, 1, -40, -40],
[INFO] [stderr] 19 | |     [5, 1, 1, 1, 1, 1, 1, 5],
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     [1000, -40, 5, 5, 5, 5, -40, 1000],
[INFO] [stderr] 25 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_valid`
[INFO] [stderr]    --> src/board.rs:401:5
[INFO] [stderr]     |
[INFO] [stderr] 401 |     fn is_valid(&self, pos: &BitIndexable, player: Color) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `proc_end`
[INFO] [stderr]    --> src/interface/game.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `map1`
[INFO] [stderr]   --> src/player/linear_evaluator.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | / const map1: [[i64; 8]; 8] = [
[INFO] [stderr] 17 | |     [1000, -40, 5, 5, 5, 5, -40, 1000],
[INFO] [stderr] 18 | |     [-40, -40, 1, 1, 1, 1, -40, -40],
[INFO] [stderr] 19 | |     [5, 1, 1, 1, 1, 1, 1, 5],
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     [1000, -40, 5, 5, 5, 5, -40, 1000],
[INFO] [stderr] 25 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_valid`
[INFO] [stderr]    --> src/board.rs:401:5
[INFO] [stderr]     |
[INFO] [stderr] 401 |     fn is_valid(&self, pos: &BitIndexable, player: Color) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `proc_end`
[INFO] [stderr]    --> src/interface/game.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn proc_end(&self, result: client::MatchResult, n: u8, m: u8, reason: String) {}
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `map1`
[INFO] [stderr]   --> src/player/linear_evaluator.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | / const map1: [[i64; 8]; 8] = [
[INFO] [stderr] 17 | |     [1000, -40, 5, 5, 5, 5, -40, 1000],
[INFO] [stderr] 18 | |     [-40, -40, 1, 1, 1, 1, -40, -40],
[INFO] [stderr] 19 | |     [5, 1, 1, 1, 1, 1, 1, 5],
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     [1000, -40, 5, 5, 5, 5, -40, 1000],
[INFO] [stderr] 25 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | /     match game::Game::new(client, player, NAME) {
[INFO] [stderr] 36 | |         Ok(mut g) => g.main_loop(),
[INFO] [stderr] 37 | |         Err(s) => panic!("Fail: {}", s),
[INFO] [stderr] 38 | |     };
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/interface/tcp_client.rs:84:17
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 self.writer.flush();
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: constant `map1` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 | const map1: [[i64; 8]; 8] = [
[INFO] [stderr]    |       ^^^^ help: convert the identifier to upper case: `MAP1`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `feature_functions` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:83:11
[INFO] [stderr]    |
[INFO] [stderr] 83 | pub const feature_functions: [fn(board::Board) -> f32; 12] = [
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `FEATURE_FUNCTIONS`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `feature_names` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:87:11
[INFO] [stderr]    |
[INFO] [stderr] 87 | pub const feature_names: [&str; 12] = [
[INFO] [stderr]    |           ^^^^^^^^^^^^^ help: convert the identifier to upper case: `FEATURE_NAMES`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |             create_dir(path);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:170:25
[INFO] [stderr]     |
[INFO] [stderr] 170 |                         write!(&mut writer, "{}", if his.result == MatchResult::Black{1}else{0});
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:173:29
[INFO] [stderr]     |
[INFO] [stderr] 173 |                             write!(&mut writer, ",{:.3}", item);
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:175:25
[INFO] [stderr]     |
[INFO] [stderr] 175 |                         write!(&mut writer, "\n");
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/interface/tcp_client.rs:84:17
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 self.writer.flush();
[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: constant `map1` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 | const map1: [[i64; 8]; 8] = [
[INFO] [stderr]    |       ^^^^ help: convert the identifier to upper case: `MAP1`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `feature_functions` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:83:11
[INFO] [stderr]    |
[INFO] [stderr] 83 | pub const feature_functions: [fn(board::Board) -> f32; 12] = [
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `FEATURE_FUNCTIONS`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `feature_names` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:87:11
[INFO] [stderr]    |
[INFO] [stderr] 87 | pub const feature_names: [&str; 12] = [
[INFO] [stderr]    |           ^^^^^^^^^^^^^ help: convert the identifier to upper case: `FEATURE_NAMES`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |             create_dir(path);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:170:25
[INFO] [stderr]     |
[INFO] [stderr] 170 |                         write!(&mut writer, "{}", if his.result == MatchResult::Black{1}else{0});
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:173:29
[INFO] [stderr]     |
[INFO] [stderr] 173 |                             write!(&mut writer, ",{:.3}", item);
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:175:25
[INFO] [stderr]     |
[INFO] [stderr] 175 |                         write!(&mut writer, "\n");
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: constant `filename` should have an upper case name
[INFO] [stderr]   --> src/analysis.rs:19:7
[INFO] [stderr]    |
[INFO] [stderr] 19 | const filename: &str = "data/data";
[INFO] [stderr]    |       ^^^^^^^^ help: convert the identifier to upper case: `FILENAME`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `output_dir` should have an upper case name
[INFO] [stderr]   --> src/analysis.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 | const output_dir: &str = "output/";
[INFO] [stderr]    |       ^^^^^^^^^^ help: convert the identifier to upper case: `OUTPUT_DIR`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/interface/tcp_client.rs:84:17
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 self.writer.flush();
[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: constant `map1` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 | const map1: [[i64; 8]; 8] = [
[INFO] [stderr]    |       ^^^^ help: convert the identifier to upper case: `MAP1`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `feature_functions` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:83:11
[INFO] [stderr]    |
[INFO] [stderr] 83 | pub const feature_functions: [fn(board::Board) -> f32; 12] = [
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `FEATURE_FUNCTIONS`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `feature_names` should have an upper case name
[INFO] [stderr]   --> src/player/linear_evaluator.rs:87:11
[INFO] [stderr]    |
[INFO] [stderr] 87 | pub const feature_names: [&str; 12] = [
[INFO] [stderr]    |           ^^^^^^^^^^^^^ help: convert the identifier to upper case: `FEATURE_NAMES`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |             create_dir(path);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:170:25
[INFO] [stderr]     |
[INFO] [stderr] 170 |                         write!(&mut writer, "{}", if his.result == MatchResult::Black{1}else{0});
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:173:29
[INFO] [stderr]     |
[INFO] [stderr] 173 |                             write!(&mut writer, ",{:.3}", item);
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/player/learning/analysis.rs:175:25
[INFO] [stderr]     |
[INFO] [stderr] 175 |                         write!(&mut writer, "\n");
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.54s
[INFO] running `"docker" "inspect" "026013deae62eca64e4e48f3464f2c7641a177123d6ff316c00ac1c9ae017e8b"`
[INFO] running `"docker" "rm" "-f" "026013deae62eca64e4e48f3464f2c7641a177123d6ff316c00ac1c9ae017e8b"`
[INFO] [stdout] 026013deae62eca64e4e48f3464f2c7641a177123d6ff316c00ac1c9ae017e8b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/moratorium08/reversi-ai:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 0da9bd4c7d3a919af947cb115dad7bc517145462108995ff0a073393e01378b5
[INFO] running `"docker" "start" "-a" "0da9bd4c7d3a919af947cb115dad7bc517145462108995ff0a073393e01378b5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/client-54c9e2f09c72a52f
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test interface::parser::test_bye_command ... ok
[INFO] [stdout] test interface::parser::test_start_command ... ok
[INFO] [stdout] test interface::parser::test_open_command ... ok
[INFO] [stdout] test interface::parser::test_move_command ... ok
[INFO] [stdout] test interface::parser::test_end_command ... ok
[INFO] [stdout] test interface::parser::test_command_parser ... ok
[INFO] [stdout] test interface::parser::test_ack_command ... ok
[INFO] [stdout] test player::learning::parser::tests::test_parse_csv_line ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- player::learning::parser::tests::test_parse_csv_line stdout ----
[INFO] [stdout] thread 'player::learning::parser::tests::test_parse_csv_line' panicked at 'attempt to add with overflow', src/board.rs:293:35
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5649f70fbb1b - backtrace::backtrace::libunwind::trace::h23ae608c8b906c69
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stdout]    1:     0x5649f70fbb1b - backtrace::backtrace::trace_unsynchronized::h65b3ea295a85fd48
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x5649f70fbb1b - std::sys_common::backtrace::_print::h24f527b44b6cfc06
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stdout]    3:     0x5649f70fbb1b - std::sys_common::backtrace::print::h712608e4347fd64a
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stdout]    4:     0x5649f70fbb1b - std::panicking::default_hook::{{closure}}::h6c3d570c2b500048
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    5:     0x5649f70fb78c - std::panicking::default_hook::hb29963fb4747e0dd
[INFO] [stdout]                                at src/libstd/panicking.rs:211
[INFO] [stdout]    6:     0x5649f70fc28d - std::panicking::rust_panic_with_hook::hd1236c3083de823a
[INFO] [stdout]                                at src/libstd/panicking.rs:477
[INFO] [stdout]    7:     0x5649f70fbe12 - std::panicking::continue_panic_fmt::he38ad41d6304a12c
[INFO] [stdout]                                at src/libstd/panicking.rs:384
[INFO] [stdout]    8:     0x5649f70fbcf6 - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:311
[INFO] [stdout]    9:     0x5649f711217d - core::panicking::panic_fmt::h1bc6de43c92ad80c
[INFO] [stdout]                                at src/libcore/panicking.rs:85
[INFO] [stdout]   10:     0x5649f71120bc - core::panicking::panic::h411fb8ce50d26c19
[INFO] [stdout]                                at src/libcore/panicking.rs:49
[INFO] [stdout]   11:     0x5649f7093eda - client::board::Board::gen_flip::h7f7d7762936e9520
[INFO] [stdout]                                at src/board.rs:293
[INFO] [stdout]   12:     0x5649f70931e1 - client::board::Board::flip::hf86dc794dae84a9a
[INFO] [stdout]                                at src/board.rs:255
[INFO] [stdout]   13:     0x5649f70a79f2 - client::player::learning::parser::tests::test_parse_csv_line::h6995e15cbd5f5f3d
[INFO] [stdout]                                at src/player/learning/parser.rs:149
[INFO] [stdout]   14:     0x5649f70a725a - client::player::learning::parser::tests::test_parse_csv_line::{{closure}}::h46dd44a8f7a0d8e0
[INFO] [stdout]                                at src/player/learning/parser.rs:128
[INFO] [stdout]   15:     0x5649f709969e - core::ops::function::FnOnce::call_once::h58a02d996ebd430f
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libcore/ops/function.rs:235
[INFO] [stdout]   16:     0x5649f70b465f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h355e655b04400826
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/liballoc/boxed.rs:787
[INFO] [stdout]   17:     0x5649f70feb6a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stdout]   18:     0x5649f70cec4e - std::panicking::try::h5890cbed5d1d8df0
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:275
[INFO] [stdout]   19:     0x5649f70cec4e - std::panic::catch_unwind::hf93cc71fc6442fdf
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panic.rs:394
[INFO] [stdout]   20:     0x5649f70cec4e - test::run_test::run_test_inner::{{closure}}::ha399a28a3066698d
[INFO] [stdout]                                at src/libtest/lib.rs:1408
[INFO] [stdout]   21:     0x5649f70aa085 - std::sys_common::backtrace::__rust_begin_short_backtrace::h089859c639046955
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/sys_common/backtrace.rs:77
[INFO] [stdout]   22:     0x5649f70ae295 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h8d489100862c3e01
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/thread/mod.rs:470
[INFO] [stdout]   23:     0x5649f70ae295 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h5746c9e2571824d0
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panic.rs:315
[INFO] [stdout]   24:     0x5649f70ae295 - std::panicking::try::do_call::hfd443b32b22f72a6
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:296
[INFO] [stdout]   25:     0x5649f70feb6a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stdout]   26:     0x5649f70ae892 - std::panicking::try::h332f368ed7d9b7d1
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:275
[INFO] [stdout]   27:     0x5649f70ae892 - std::panic::catch_unwind::h316b7be8b4198222
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panic.rs:394
[INFO] [stdout]   28:     0x5649f70ae892 - std::thread::Builder::spawn_unchecked::{{closure}}::h916aed08bc6e5276
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/thread/mod.rs:469
[INFO] [stdout]   29:     0x5649f70ae892 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h9091646be5c55ea6
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libcore/ops/function.rs:235
[INFO] [stdout]   30:     0x5649f70f19bf - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hb5396a93648ae250
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/liballoc/boxed.rs:787
[INFO] [stdout]   31:     0x5649f70fe2a0 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h92593001847bb63e
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/liballoc/boxed.rs:787
[INFO] [stdout]   32:     0x5649f70fe2a0 - std::sys_common::thread::start_thread::h569f3ccc0d5dcd83
[INFO] [stdout]                                at src/libstd/sys_common/thread.rs:13
[INFO] [stdout]   33:     0x5649f70fe2a0 - std::sys::unix::thread::Thread::new::thread_start::hd9ff46fad032d886
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:79
[INFO] [stdout]   34:     0x7f31fdf024a4 - start_thread
[INFO] [stdout]   35:     0x7f31fda2dd0f - __clone
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     player::learning::parser::tests::test_parse_csv_line
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 7 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] running `"docker" "inspect" "0da9bd4c7d3a919af947cb115dad7bc517145462108995ff0a073393e01378b5"`
[INFO] running `"docker" "rm" "-f" "0da9bd4c7d3a919af947cb115dad7bc517145462108995ff0a073393e01378b5"`
[INFO] [stdout] 0da9bd4c7d3a919af947cb115dad7bc517145462108995ff0a073393e01378b5