[INFO] updating cached repository https://github.com/moseslee90/tetris-rust
[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] 78f5873831c0a99d27213e02b03b0476453d1106
[INFO] checking moseslee90/tetris-rust against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoseslee90%2Ftetris-rust" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/moseslee90/tetris-rust on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/moseslee90/tetris-rust
[INFO] finished tweaking git repo https://github.com/moseslee90/tetris-rust
[INFO] tweaked toml for git repo https://github.com/moseslee90/tetris-rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/moseslee90/tetris-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 8fd94018d863ffcb3cf9f1f9a675c13bc28c8c205168bfd73e1f3a41ff9df58f
[INFO] running `"docker" "start" "-a" "8fd94018d863ffcb3cf9f1f9a675c13bc28c8c205168bfd73e1f3a41ff9df58f"`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking json v0.11.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking tetris-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `is_floor`
[INFO] [stderr]    --> src/board.rs:80:5
[INFO] [stderr]     |
[INFO] [stderr] 80  | /     fn is_floor(
[INFO] [stderr] 81  | |         &self,
[INFO] [stderr] 82  | |         game_variables: &GameVariables,
[INFO] [stderr] 83  | |     ) -> bool {
[INFO] [stderr] ...   |
[INFO] [stderr] 107 | |         return false;
[INFO] [stderr] 108 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `move_piece`
[INFO] [stderr]    --> src/board.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 | /     pub fn move_piece(
[INFO] [stderr] 121 | |         &mut self,
[INFO] [stderr] 122 | |         direction: &str,
[INFO] [stderr] 123 | |         amount: usize,
[INFO] [stderr] ...   |
[INFO] [stderr] 156 | |         };
[INFO] [stderr] 157 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `no_collision`
[INFO] [stderr]    --> src/board.rs:189:5
[INFO] [stderr]     |
[INFO] [stderr] 189 | /     fn no_collision(
[INFO] [stderr] 190 | |         &self,
[INFO] [stderr] 191 | |         game_variables: &GameVariables,
[INFO] [stderr] 192 | |     ) -> bool {
[INFO] [stderr] ...   |
[INFO] [stderr] 217 | |         //collision with fixed pieces needs to be added in the future for human playability
[INFO] [stderr] 218 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_game_board`
[INFO] [stderr]    --> src/board.rs:273:5
[INFO] [stderr]     |
[INFO] [stderr] 273 |     pub fn print_game_board(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_holding_board`
[INFO] [stderr]    --> src/board.rs:319:5
[INFO] [stderr]     |
[INFO] [stderr] 319 |     pub fn print_holding_board(holding_board: &[[u8; HOLDING_SIZE]; HOLDING_SIZE]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rotate_piece`
[INFO] [stderr]    --> src/board.rs:334:5
[INFO] [stderr]     |
[INFO] [stderr] 334 | /     pub fn rotate_piece(
[INFO] [stderr] 335 | |         &mut self,
[INFO] [stderr] 336 | |         game_variables: &mut GameVariables,
[INFO] [stderr] 337 | |     ) {
[INFO] [stderr] ...   |
[INFO] [stderr] 375 | |         }
[INFO] [stderr] 376 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `HOLDING_SIZE`
[INFO] [stderr]  --> src/game_constants.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     pub const HOLDING_SIZE: usize = 4;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NONE`
[INFO] [stderr]   --> src/game_constants.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub const NONE: &str = "none";
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_floor`
[INFO] [stderr]    --> src/board.rs:80:5
[INFO] [stderr]     |
[INFO] [stderr] 80  | /     fn is_floor(
[INFO] [stderr] 81  | |         &self,
[INFO] [stderr] 82  | |         game_variables: &GameVariables,
[INFO] [stderr] 83  | |     ) -> bool {
[INFO] [stderr] ...   |
[INFO] [stderr] 107 | |         return false;
[INFO] [stderr] 108 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `move_piece`
[INFO] [stderr]    --> src/board.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 | /     pub fn move_piece(
[INFO] [stderr] 121 | |         &mut self,
[INFO] [stderr] 122 | |         direction: &str,
[INFO] [stderr] 123 | |         amount: usize,
[INFO] [stderr] ...   |
[INFO] [stderr] 156 | |         };
[INFO] [stderr] 157 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `no_collision`
[INFO] [stderr]    --> src/board.rs:189:5
[INFO] [stderr]     |
[INFO] [stderr] 189 | /     fn no_collision(
[INFO] [stderr] 190 | |         &self,
[INFO] [stderr] 191 | |         game_variables: &GameVariables,
[INFO] [stderr] 192 | |     ) -> bool {
[INFO] [stderr] ...   |
[INFO] [stderr] 217 | |         //collision with fixed pieces needs to be added in the future for human playability
[INFO] [stderr] 218 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_game_board`
[INFO] [stderr]    --> src/board.rs:273:5
[INFO] [stderr]     |
[INFO] [stderr] 273 |     pub fn print_game_board(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_holding_board`
[INFO] [stderr]    --> src/board.rs:319:5
[INFO] [stderr]     |
[INFO] [stderr] 319 |     pub fn print_holding_board(holding_board: &[[u8; HOLDING_SIZE]; HOLDING_SIZE]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rotate_piece`
[INFO] [stderr]    --> src/board.rs:334:5
[INFO] [stderr]     |
[INFO] [stderr] 334 | /     pub fn rotate_piece(
[INFO] [stderr] 335 | |         &mut self,
[INFO] [stderr] 336 | |         game_variables: &mut GameVariables,
[INFO] [stderr] 337 | |     ) {
[INFO] [stderr] ...   |
[INFO] [stderr] 375 | |         }
[INFO] [stderr] 376 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `HOLDING_SIZE`
[INFO] [stderr]  --> src/game_constants.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     pub const HOLDING_SIZE: usize = 4;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NONE`
[INFO] [stderr]   --> src/game_constants.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub const NONE: &str = "none";
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 6.10s
[INFO] running `"docker" "inspect" "8fd94018d863ffcb3cf9f1f9a675c13bc28c8c205168bfd73e1f3a41ff9df58f"`
[INFO] running `"docker" "rm" "-f" "8fd94018d863ffcb3cf9f1f9a675c13bc28c8c205168bfd73e1f3a41ff9df58f"`
[INFO] [stdout] 8fd94018d863ffcb3cf9f1f9a675c13bc28c8c205168bfd73e1f3a41ff9df58f