[INFO] cloning repository https://github.com/tduffy000/lasker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tduffy000/lasker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftduffy000%2Flasker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftduffy000%2Flasker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 74167f7296a83a9cdceaea16a9a19ff52e4716e7
[INFO] checking tduffy000/lasker against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftduffy000%2Flasker" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tduffy000/lasker on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tduffy000/lasker
[INFO] finished tweaking git repo https://github.com/tduffy000/lasker
[INFO] tweaked toml for git repo https://github.com/tduffy000/lasker written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/tduffy000/lasker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84aa6049bb27d5b3255367758a64bd8935eff11fd504028a5942a798da853020
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "84aa6049bb27d5b3255367758a64bd8935eff11fd504028a5942a798da853020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84aa6049bb27d5b3255367758a64bd8935eff11fd504028a5942a798da853020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84aa6049bb27d5b3255367758a64bd8935eff11fd504028a5942a798da853020", kill_on_drop: false }`
[INFO] [stdout] 84aa6049bb27d5b3255367758a64bd8935eff11fd504028a5942a798da853020
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 40b3e09f39ae14601ff12ab27209873d4074211bc9527301f257aa7dbbb73546
[INFO] running `Command { std: "docker" "start" "-a" "40b3e09f39ae14601ff12ab27209873d4074211bc9527301f257aa7dbbb73546", kill_on_drop: false }`
[INFO] [stderr]     Checking lasker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `WHITE_SQUARE`
[INFO] [stdout]  --> src/board/bitboard.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const WHITE_SQUARE: u64 = 0x55AA55AA55AA55AA;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BLACK_SQUARES`
[INFO] [stdout]  --> src/board/bitboard.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const BLACK_SQUARES: u64 = 0xAA55AA55AA55AA55;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `universe`
[INFO] [stdout]   --> src/board/bitboard.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn universe() -> Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_count`
[INFO] [stdout]   --> src/board/bitboard.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn pop_count(&self) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `idx`
[INFO] [stdout]  --> src/board/error.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     idx: usize,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]  --> src/board/error.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     msg: String,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `A1_H8_DIAGONAL`
[INFO] [stdout]  --> src/board/types.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const A1_H8_DIAGONAL:u64 = 0x8040201008040201;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `H1_A1_DIAGONAL`
[INFO] [stdout]   --> src/board/types.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const H1_A1_DIAGONAL: u64 = 0x0102040810204080;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhitePawn`
[INFO] [stdout]   --> src/board/types.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     WhitePawn,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhiteKnight`
[INFO] [stdout]   --> src/board/types.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     WhiteKnight ,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhiteBishop`
[INFO] [stdout]   --> src/board/types.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     WhiteBishop,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhiteRook`
[INFO] [stdout]   --> src/board/types.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     WhiteRook,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhiteQueen`
[INFO] [stdout]   --> src/board/types.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     WhiteQueen,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhiteKing`
[INFO] [stdout]   --> src/board/types.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     WhiteKing,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlackPawn`
[INFO] [stdout]   --> src/board/types.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     BlackPawn,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlackKnight`
[INFO] [stdout]   --> src/board/types.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     BlackKnight,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlackBishop`
[INFO] [stdout]   --> src/board/types.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     BlackBishop,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlackRook`
[INFO] [stdout]   --> src/board/types.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     BlackRook,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlackQueen`
[INFO] [stdout]   --> src/board/types.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     BlackQueen,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlackKing`
[INFO] [stdout]   --> src/board/types.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     BlackKing,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rank`
[INFO] [stdout]    --> src/board/types.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn rank(&self) -> Rank {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `file`
[INFO] [stdout]    --> src/board/types.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn file(&self) -> File {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Direction`
[INFO] [stdout]    --> src/board/types.rs:166:10
[INFO] [stdout]     |
[INFO] [stdout] 166 | pub enum Direction {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `BoardState`
[INFO] [stdout]   --> src/board/mod.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct BoardState {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `WHITE_SQUARE`
[INFO] [stdout]  --> src/board/bitboard.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const WHITE_SQUARE: u64 = 0x55AA55AA55AA55AA;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BLACK_SQUARES`
[INFO] [stdout]  --> src/board/bitboard.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const BLACK_SQUARES: u64 = 0xAA55AA55AA55AA55;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `idx`
[INFO] [stdout]  --> src/board/error.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     idx: usize,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]  --> src/board/error.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     msg: String,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `A1_H8_DIAGONAL`
[INFO] [stdout]  --> src/board/types.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const A1_H8_DIAGONAL:u64 = 0x8040201008040201;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `H1_A1_DIAGONAL`
[INFO] [stdout]   --> src/board/types.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const H1_A1_DIAGONAL: u64 = 0x0102040810204080;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhitePawn`
[INFO] [stdout]   --> src/board/types.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     WhitePawn,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhiteKnight`
[INFO] [stdout]   --> src/board/types.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     WhiteKnight ,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhiteBishop`
[INFO] [stdout]   --> src/board/types.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     WhiteBishop,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhiteRook`
[INFO] [stdout]   --> src/board/types.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     WhiteRook,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhiteQueen`
[INFO] [stdout]   --> src/board/types.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     WhiteQueen,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhiteKing`
[INFO] [stdout]   --> src/board/types.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     WhiteKing,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlackPawn`
[INFO] [stdout]   --> src/board/types.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     BlackPawn,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlackKnight`
[INFO] [stdout]   --> src/board/types.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     BlackKnight,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlackBishop`
[INFO] [stdout]   --> src/board/types.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     BlackBishop,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlackRook`
[INFO] [stdout]   --> src/board/types.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     BlackRook,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlackQueen`
[INFO] [stdout]   --> src/board/types.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     BlackQueen,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlackKing`
[INFO] [stdout]   --> src/board/types.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     BlackKing,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Direction`
[INFO] [stdout]    --> src/board/types.rs:166:10
[INFO] [stdout]     |
[INFO] [stdout] 166 | pub enum Direction {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `BoardState`
[INFO] [stdout]   --> src/board/mod.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct BoardState {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "40b3e09f39ae14601ff12ab27209873d4074211bc9527301f257aa7dbbb73546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40b3e09f39ae14601ff12ab27209873d4074211bc9527301f257aa7dbbb73546", kill_on_drop: false }`
[INFO] [stdout] 40b3e09f39ae14601ff12ab27209873d4074211bc9527301f257aa7dbbb73546