[INFO] updating cached repository dmitmel/tic-tac-toe-evolution
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dmitmel/tic-tac-toe-evolution
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dmitmel/tic-tac-toe-evolution" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/dmitmel/tic-tac-toe-evolution"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/dmitmel/tic-tac-toe-evolution'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dmitmel/tic-tac-toe-evolution" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/dmitmel/tic-tac-toe-evolution"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/dmitmel/tic-tac-toe-evolution'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c7512c58eb8a90096204b07789995036e1e66465
[INFO] sha for GitHub repo dmitmel/tic-tac-toe-evolution: c7512c58eb8a90096204b07789995036e1e66465
[INFO] validating manifest of dmitmel/tic-tac-toe-evolution on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dmitmel/tic-tac-toe-evolution on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dmitmel/tic-tac-toe-evolution
[INFO] finished frobbing dmitmel/tic-tac-toe-evolution
[INFO] frobbed toml for dmitmel/tic-tac-toe-evolution written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/dmitmel/tic-tac-toe-evolution/Cargo.toml
[INFO] started frobbing dmitmel/tic-tac-toe-evolution
[INFO] finished frobbing dmitmel/tic-tac-toe-evolution
[INFO] frobbed toml for dmitmel/tic-tac-toe-evolution written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/dmitmel/tic-tac-toe-evolution/Cargo.toml
[INFO] crate dmitmel/tic-tac-toe-evolution already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking dmitmel/tic-tac-toe-evolution against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/dmitmel/tic-tac-toe-evolution:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9953a52433cedd6612c16d64a8a1469388f31e86177f8dfb64abcbdb8f21f533
[INFO] running `"docker" "start" "-a" "9953a52433cedd6612c16d64a8a1469388f31e86177f8dfb64abcbdb8f21f533"`
[INFO] [stderr]     Checking tic-tac-toe-evolution v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]  --> src/main.rs:5:11
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let mut board = board::Board::new(64, 64);
[INFO] [stderr]   |           ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:5:7
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let mut board = board::Board::new(64, 64);
[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: variant is never constructed: `X`
[INFO] [stderr]  --> src/board.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   X,
[INFO] [stderr]   |   ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `O`
[INFO] [stderr]  --> src/board.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   O,
[INFO] [stderr]   |   ^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set`
[INFO] [stderr]   --> src/board.rs:39:3
[INFO] [stderr]    |
[INFO] [stderr] 39 |   pub fn set(&mut self, x: Coord, y: Coord, cell: Cell) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INSTRUCTIONS_PER_MOVE`
[INFO] [stderr]  --> src/bot.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub const INSTRUCTIONS_PER_MOVE: usize = 25;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Instruction`
[INFO] [stderr]  --> src/bot.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub type Instruction = u8;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Program`
[INFO] [stderr]  --> src/bot.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub type Program = Vec<Instruction>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MOVE_UP`
[INFO] [stderr]   --> src/bot.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   pub const MOVE_UP: Instruction = 0;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MOVE_UP_RIGHT`
[INFO] [stderr]   --> src/bot.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   pub const MOVE_UP_RIGHT: Instruction = 1;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MOVE_RIGHT`
[INFO] [stderr]   --> src/bot.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   pub const MOVE_RIGHT: Instruction = 2;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MOVE_DOWN_RIGHT`
[INFO] [stderr]   --> src/bot.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   pub const MOVE_DOWN_RIGHT: Instruction = 3;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MOVE_DOWN`
[INFO] [stderr]   --> src/bot.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub const MOVE_DOWN: Instruction = 4;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MOVE_DOWN_LEFT`
[INFO] [stderr]   --> src/bot.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   pub const MOVE_DOWN_LEFT: Instruction = 5;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MOVE_LEFT`
[INFO] [stderr]   --> src/bot.rs:17:3
[INFO] [stderr]    |
[INFO] [stderr] 17 |   pub const MOVE_LEFT: Instruction = 6;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MOVE_UP_LEFT`
[INFO] [stderr]   --> src/bot.rs:18:3
[INFO] [stderr]    |
[INFO] [stderr] 18 |   pub const MOVE_UP_LEFT: Instruction = 7;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `CHECK_MARK`
[INFO] [stderr]   --> src/bot.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   pub const CHECK_MARK: Instruction = 8;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PLACE_MARK`
[INFO] [stderr]   --> src/bot.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub const PLACE_MARK: Instruction = 9;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `JUMP`
[INFO] [stderr]   --> src/bot.rs:24:3
[INFO] [stderr]    |
[INFO] [stderr] 24 |   pub fn JUMP(instructions: u8) -> Instruction {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Bot`
[INFO] [stderr]   --> src/bot.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub struct Bot {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/bot.rs:39:3
[INFO] [stderr]    |
[INFO] [stderr] 39 |   pub fn new(program: Program, mark: PlayerMark, board: &Board) -> Self {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `make_move`
[INFO] [stderr]   --> src/bot.rs:49:3
[INFO] [stderr]    |
[INFO] [stderr] 49 |   pub fn make_move(&mut self, board: &mut Board) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `execute_instruction`
[INFO] [stderr]    --> src/bot.rs:59:3
[INFO] [stderr]     |
[INFO] [stderr] 59  | /   fn execute_instruction(
[INFO] [stderr] 60  | |     &mut self,
[INFO] [stderr] 61  | |     instruction: Instruction,
[INFO] [stderr] 62  | |     board: &mut Board,
[INFO] [stderr] ...   |
[INFO] [stderr] 120 | |     self.skip_instructions(1);
[INFO] [stderr] 121 | |   }
[INFO] [stderr]     | |___^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `skip_instructions`
[INFO] [stderr]    --> src/bot.rs:123:3
[INFO] [stderr]     |
[INFO] [stderr] 123 |   fn skip_instructions(&mut self, instructions: usize) {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]  --> src/main.rs:5:11
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let mut board = board::Board::new(64, 64);
[INFO] [stderr]   |           ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:5:7
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let mut board = board::Board::new(64, 64);
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "9953a52433cedd6612c16d64a8a1469388f31e86177f8dfb64abcbdb8f21f533"`
[INFO] running `"docker" "rm" "-f" "9953a52433cedd6612c16d64a8a1469388f31e86177f8dfb64abcbdb8f21f533"`
[INFO] [stdout] 9953a52433cedd6612c16d64a8a1469388f31e86177f8dfb64abcbdb8f21f533