[INFO] updating cached repository https://github.com/hminbdxxxx/gomokurs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2e08ede215da00bd21331f2f36c1e0acbdad8b00
[INFO] checking hminbdxxxx/gomokurs against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhminbdxxxx%2Fgomokurs" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hminbdxxxx/gomokurs on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/hminbdxxxx/gomokurs
[INFO] finished tweaking git repo https://github.com/hminbdxxxx/gomokurs
[INFO] tweaked toml for git repo https://github.com/hminbdxxxx/gomokurs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/hminbdxxxx/gomokurs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f0337250be7a083a9256c6c842a4ada392dd415ed7ade9cca5dbd9c6edbf5afa
[INFO] running `"docker" "start" "-a" "f0337250be7a083a9256c6c842a4ada392dd415ed7ade9cca5dbd9c6edbf5afa"`
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]     Checking serde v1.0.101
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking gomoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/board.rs:176:9
[INFO] [stderr]     |
[INFO] [stderr] 176 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/client.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{self, Read};
[INFO] [stderr]   |                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stderr]  --> src/error.rs:2:13
[INFO] [stderr]   |
[INFO] [stderr] 2 | use serde::{Deserialize, Serialize};
[INFO] [stderr]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/client.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{self, Read};
[INFO] [stderr]   |                     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stderr]  --> src/error.rs:2:13
[INFO] [stderr]   |
[INFO] [stderr] 2 | use serde::{Deserialize, Serialize};
[INFO] [stderr]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/board.rs:15:55
[INFO] [stderr]    |
[INFO] [stderr] 15 |             arr: Array2::from_shape_fn((size, size), |i| { None } ),
[INFO] [stderr]    |                                                       ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/server.rs:42:21
[INFO] [stderr]    |
[INFO] [stderr] 42 |                 Err(e) => {}
[INFO] [stderr]    |                     ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Chess`
[INFO] [stderr]    --> src/server.rs:116:45
[INFO] [stderr]     |
[INFO] [stderr] 116 |                         GameState::Finished(Chess) => {},
[INFO] [stderr]     |                                             ^^^^^ help: consider prefixing with an underscore: `_Chess`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `th1`
[INFO] [stderr]   --> src/server.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let th1 = thread::Builder::new().name("request handler".to_string()).spawn(move || {
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_th1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `th2`
[INFO] [stderr]    --> src/server.rs:127:13
[INFO] [stderr]     |
[INFO] [stderr] 127 |         let th2 = thread::Builder::new().name("request recevier".to_string()).spawn(move || {
[INFO] [stderr]     |             ^^^ help: consider prefixing with an underscore: `_th2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/board.rs:15:55
[INFO] [stderr]    |
[INFO] [stderr] 15 |             arr: Array2::from_shape_fn((size, size), |i| { None } ),
[INFO] [stderr]    |                                                       ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/server.rs:42:21
[INFO] [stderr]    |
[INFO] [stderr] 42 |                 Err(e) => {}
[INFO] [stderr]    |                     ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Chess`
[INFO] [stderr]    --> src/server.rs:116:45
[INFO] [stderr]     |
[INFO] [stderr] 116 |                         GameState::Finished(Chess) => {},
[INFO] [stderr]     |                                             ^^^^^ help: consider prefixing with an underscore: `_Chess`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `th1`
[INFO] [stderr]   --> src/server.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let th1 = thread::Builder::new().name("request handler".to_string()).spawn(move || {
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_th1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `th2`
[INFO] [stderr]    --> src/server.rs:127:13
[INFO] [stderr]     |
[INFO] [stderr] 127 |         let th2 = thread::Builder::new().name("request recevier".to_string()).spawn(move || {
[INFO] [stderr]     |             ^^^ help: consider prefixing with an underscore: `_th2`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `start`
[INFO] [stderr]   --> src/game.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn start(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Chess` should have a snake case name
[INFO] [stderr]    --> src/server.rs:116:45
[INFO] [stderr]     |
[INFO] [stderr] 116 |                         GameState::Finished(Chess) => {},
[INFO] [stderr]     |                                             ^^^^^ help: convert the identifier to snake case (notice the capitalization): `chess`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `start`
[INFO] [stderr]   --> src/game.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn start(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/game.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         game.join_game();
[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/game.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |         game.join_game();
[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/game.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |         game.take_turn(Chess::White, 30, 30);
[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/game.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 |         game.take_turn(Chess::Black, 0, 1);
[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/game.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |         game.take_turn(Chess::White, 27, 27);
[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/game.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |         game.take_turn(Chess::Black, 0, 2);
[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/game.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         game.take_turn(Chess::White, 20, 30);
[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/game.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |         game.take_turn(Chess::Black, 0, 3);
[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/game.rs:111:9
[INFO] [stderr]     |
[INFO] [stderr] 111 |         game.take_turn(Chess::White, 19, 17);
[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/game.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |         game.take_turn(Chess::Black, 0, 4);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Chess` should have a snake case name
[INFO] [stderr]    --> src/server.rs:116:45
[INFO] [stderr]     |
[INFO] [stderr] 116 |                         GameState::Finished(Chess) => {},
[INFO] [stderr]     |                                             ^^^^^ help: convert the identifier to snake case (notice the capitalization): `chess`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/bin/server.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     server.run("0.0.0.0:9999");
[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/bin/server.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     server.run("0.0.0.0:9999");
[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 import: `Read`
[INFO] [stderr]  --> src/bin/client.rs:3:21
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{self, Read};
[INFO] [stderr]   |                     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/bin/client.rs:3:21
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{self, Read};
[INFO] [stderr]   |                     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.79s
[INFO] running `"docker" "inspect" "f0337250be7a083a9256c6c842a4ada392dd415ed7ade9cca5dbd9c6edbf5afa"`
[INFO] running `"docker" "rm" "-f" "f0337250be7a083a9256c6c842a4ada392dd415ed7ade9cca5dbd9c6edbf5afa"`
[INFO] [stdout] f0337250be7a083a9256c6c842a4ada392dd415ed7ade9cca5dbd9c6edbf5afa