[INFO] updating cached repository huytd/sergaem
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/huytd/sergaem
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/huytd/sergaem" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/huytd/sergaem"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/huytd/sergaem'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/huytd/sergaem" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/huytd/sergaem"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/huytd/sergaem'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1bfdd4aa0a66f96af4d65a2a09927b3cb0d9313e
[INFO] sha for GitHub repo huytd/sergaem: 1bfdd4aa0a66f96af4d65a2a09927b3cb0d9313e
[INFO] validating manifest of huytd/sergaem on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of huytd/sergaem on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing huytd/sergaem
[INFO] finished frobbing huytd/sergaem
[INFO] frobbed toml for huytd/sergaem written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/huytd/sergaem/Cargo.toml
[INFO] started frobbing huytd/sergaem
[INFO] finished frobbing huytd/sergaem
[INFO] frobbed toml for huytd/sergaem written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/huytd/sergaem/Cargo.toml
[INFO] crate huytd/sergaem already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking huytd/sergaem against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-4/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/huytd/sergaem:/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=forbid" "-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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0dcefbaffac64234cced54ee63f3d6aeee51a87098a7628b00040b626237f794
[INFO] running `"docker" "start" "-a" "0dcefbaffac64234cced54ee63f3d6aeee51a87098a7628b00040b626237f794"`
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking ws v0.7.9
[INFO] [stderr]     Checking crossbeam-deque v0.5.2
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]     Checking crossbeam v0.4.1
[INFO] [stderr]     Checking sergaem v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `CloseCode`, `Handler`, `Handshake`, `Message`, `Result`
[INFO] [stderr]  --> src/engine/network.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ws::{CloseCode, Sender, Handler, Handshake, Message, Result};
[INFO] [stderr]   |          ^^^^^^^^^          ^^^^^^^  ^^^^^^^^^  ^^^^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ws::util::Token`
[INFO] [stderr]  --> src/engine/client_handler.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ws::util::Token;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/engine/game_manager.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 |         for (_, mut game) in &mut self.games {
[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/engine/game.rs:30:21
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 let mut game_logic = GameLogic::new(self.clone());
[INFO] [stderr]    |                     ----^^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_total_clients`
[INFO] [stderr]   --> src/engine/network.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn get_total_clients(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_client`
[INFO] [stderr]   --> src/engine/network.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn add_client(&mut self, client: Sender) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove_client`
[INFO] [stderr]   --> src/engine/network.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn remove_client(&mut self, token: Token) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove_player`
[INFO] [stderr]   --> src/engine/game_manager.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn remove_player(&mut self, player_token: Token) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_games_list`
[INFO] [stderr]   --> src/engine/game_manager.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn get_games_list(&self) -> Vec<u64> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `player_join_game`
[INFO] [stderr]   --> src/engine/game_manager.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub fn player_join_game(&mut self, player: Sender, game_id: u64) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `kick`
[INFO] [stderr]   --> src/engine/game.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn kick(&mut self, player_token: Token) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `join`
[INFO] [stderr]   --> src/engine/game.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn join(&mut self, player: Sender) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/engine/game.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |             player.send(Message::from(msg));
[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 imports: `CloseCode`, `Handler`, `Handshake`, `Message`, `Result`
[INFO] [stderr]  --> src/engine/network.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ws::{CloseCode, Sender, Handler, Handshake, Message, Result};
[INFO] [stderr]   |          ^^^^^^^^^          ^^^^^^^  ^^^^^^^^^  ^^^^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ws::util::Token`
[INFO] [stderr]  --> src/engine/client_handler.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ws::util::Token;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/engine/game_manager.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 |         for (_, mut game) in &mut self.games {
[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/engine/game.rs:30:21
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 let mut game_logic = GameLogic::new(self.clone());
[INFO] [stderr]    |                     ----^^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_total_clients`
[INFO] [stderr]   --> src/engine/network.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn get_total_clients(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_client`
[INFO] [stderr]   --> src/engine/network.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn add_client(&mut self, client: Sender) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove_client`
[INFO] [stderr]   --> src/engine/network.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn remove_client(&mut self, token: Token) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove_player`
[INFO] [stderr]   --> src/engine/game_manager.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn remove_player(&mut self, player_token: Token) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_games_list`
[INFO] [stderr]   --> src/engine/game_manager.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn get_games_list(&self) -> Vec<u64> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `player_join_game`
[INFO] [stderr]   --> src/engine/game_manager.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub fn player_join_game(&mut self, player: Sender, game_id: u64) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `kick`
[INFO] [stderr]   --> src/engine/game.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn kick(&mut self, player_token: Token) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `join`
[INFO] [stderr]   --> src/engine/game.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn join(&mut self, player: Sender) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/engine/game.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |             player.send(Message::from(msg));
[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]     Finished dev [unoptimized + debuginfo] target(s) in 8.17s
[INFO] running `"docker" "inspect" "0dcefbaffac64234cced54ee63f3d6aeee51a87098a7628b00040b626237f794"`
[INFO] running `"docker" "rm" "-f" "0dcefbaffac64234cced54ee63f3d6aeee51a87098a7628b00040b626237f794"`
[INFO] [stdout] 0dcefbaffac64234cced54ee63f3d6aeee51a87098a7628b00040b626237f794