[INFO] cloning repository https://github.com/benwilliamgraham/rchess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benwilliamgraham/rchess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenwilliamgraham%2Frchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenwilliamgraham%2Frchess'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenwilliamgraham%2Frchess/objects/pack: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/benwilliamgraham/rchess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benwilliamgraham/rchess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenwilliamgraham%2Frchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenwilliamgraham%2Frchess'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenwilliamgraham%2Frchess: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 2)
[INFO] cloning repository https://github.com/benwilliamgraham/rchess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benwilliamgraham/rchess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenwilliamgraham%2Frchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenwilliamgraham%2Frchess'...
[INFO] [stderr] fatal: write error: No space left on device
[INFO] [stderr] fatal: fetch-pack: invalid index-pack output
[WARN] Retrying crate fetch in 3 seconds (attempt 3)
[INFO] cloning repository https://github.com/benwilliamgraham/rchess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benwilliamgraham/rchess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenwilliamgraham%2Frchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenwilliamgraham%2Frchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 15f84d50942ca16f4777c1f9bb3378ef0d679641
[INFO] checking benwilliamgraham/rchess against try#e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b for pr-144896
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenwilliamgraham%2Frchess" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/benwilliamgraham/rchess
[INFO] finished tweaking git repo https://github.com/benwilliamgraham/rchess
[INFO] tweaked toml for git repo https://github.com/benwilliamgraham/rchess written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/benwilliamgraham/rchess on toolchain e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/benwilliamgraham/rchess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/246f534837590ecfebc7832117fa517c4321f2bc1471ec0abef866ea87afaf56/merged: no space left on device
[INFO] checking benwilliamgraham/rchess against try#e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b for pr-144896
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenwilliamgraham%2Frchess" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/benwilliamgraham/rchess
[INFO] finished tweaking git repo https://github.com/benwilliamgraham/rchess
[INFO] tweaked toml for git repo https://github.com/benwilliamgraham/rchess written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/benwilliamgraham/rchess on toolchain e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/benwilliamgraham/rchess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 445ad0f1933740199a781c9d2e1e989c78db5cd501f219f2f158c9dfd67a916c
[INFO] running `Command { std: "docker" "start" "-a" "445ad0f1933740199a781c9d2e1e989c78db5cd501f219f2f158c9dfd67a916c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "445ad0f1933740199a781c9d2e1e989c78db5cd501f219f2f158c9dfd67a916c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "445ad0f1933740199a781c9d2e1e989c78db5cd501f219f2f158c9dfd67a916c", kill_on_drop: false }`
[INFO] [stdout] 445ad0f1933740199a781c9d2e1e989c78db5cd501f219f2f158c9dfd67a916c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b724a0a5c249bf11fb82e828579939cbd47b2c10b3624678a1a6ab2b33c4ccd4
[INFO] running `Command { std: "docker" "start" "-a" "b724a0a5c249bf11fb82e828579939cbd47b2c10b3624678a1a6ab2b33c4ccd4", kill_on_drop: false }`
[INFO] [stderr]     Checking rchess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rank`
[INFO] [stdout]    --> src/chess.rs:143:17
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let mut rank = 7;
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_rank`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rank`
[INFO] [stdout]    --> src/chess.rs:143:17
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let mut rank = 7;
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_rank`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/chess.rs:144:17
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let mut file = 0;
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/chess.rs:144:17
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let mut file = 0;
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fen`
[INFO] [stdout]    --> src/chess.rs:141:15
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn decode(fen: &str) -> Board {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_fen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fen`
[INFO] [stdout]    --> src/chess.rs:141:15
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn decode(fen: &str) -> Board {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_fen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/chess.rs:142:13
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let mut board = Board::new();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/chess.rs:142:13
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let mut board = Board::new();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/chess.rs:143:13
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let mut rank = 7;
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/chess.rs:143:13
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let mut rank = 7;
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/chess.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let mut file = 0;
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/chess.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let mut file = 0;
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fen`
[INFO] [stdout]    --> src/chess.rs:277:15
[INFO] [stdout]     |
[INFO] [stdout] 277 |     fn decode(fen: &str) -> Game {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_fen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/chess.rs:278:13
[INFO] [stdout]     |
[INFO] [stdout] 278 |         let mut game = Game::new();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fen`
[INFO] [stdout]    --> src/chess.rs:277:15
[INFO] [stdout]     |
[INFO] [stdout] 277 |     fn decode(fen: &str) -> Game {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_fen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `captured`
[INFO] [stdout]    --> src/chess.rs:307:17
[INFO] [stdout]     |
[INFO] [stdout] 307 |                 captured,
[INFO] [stdout]     |                 ^^^^^^^^ help: try ignoring the field: `captured: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `captured`
[INFO] [stdout]    --> src/chess.rs:325:17
[INFO] [stdout]     |
[INFO] [stdout] 325 |                 captured,
[INFO] [stdout]     |                 ^^^^^^^^ help: try ignoring the field: `captured: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/chess.rs:278:13
[INFO] [stdout]     |
[INFO] [stdout] 278 |         let mut game = Game::new();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `captured`
[INFO] [stdout]    --> src/chess.rs:307:17
[INFO] [stdout]     |
[INFO] [stdout] 307 |                 captured,
[INFO] [stdout]     |                 ^^^^^^^^ help: try ignoring the field: `captured: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `captured`
[INFO] [stdout]    --> src/chess.rs:325:17
[INFO] [stdout]     |
[INFO] [stdout] 325 |                 captured,
[INFO] [stdout]     |                 ^^^^^^^^ help: try ignoring the field: `captured: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]  --> src/chess.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Color {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Kind` is never used
[INFO] [stdout]   --> src/chess.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | enum Kind {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Piece` is never constructed
[INFO] [stdout]   --> src/chess.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Piece {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `encode`, and `decode` are never used
[INFO] [stdout]   --> src/chess.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl Piece {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 30 |     fn new(kind: Kind, color: Color) -> Piece {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn encode(&self) -> char {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     fn decode(encoded: char) -> Piece {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Square` is never constructed
[INFO] [stdout]   --> src/chess.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct Square {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `encode`, and `decode` are never used
[INFO] [stdout]   --> src/chess.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl Square {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 77 |     fn new(rank: u8, file: u8) -> Square {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn encode(&self) -> String {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88 |     fn decode(encoded: &str) -> Square {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Board` is never constructed
[INFO] [stdout]   --> src/chess.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | struct Board {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]  --> src/chess.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Color {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Kind` is never used
[INFO] [stdout]   --> src/chess.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | enum Kind {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Piece` is never constructed
[INFO] [stdout]   --> src/chess.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Piece {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get`, `set`, `encode`, and `decode` are never used
[INFO] [stdout]    --> src/chess.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 100 | impl Board {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] 101 |     fn new() -> Board {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn get(&self, square: Square) -> Option<Piece> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 111 |     fn set(&mut self, square: Square, piece: Option<Piece>) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     fn encode(&self) -> String {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     fn decode(fen: &str) -> Board {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CastlingAvailability` is never constructed
[INFO] [stdout]    --> src/chess.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 | struct CastlingAvailability {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `encode`, and `decode` are never used
[INFO] [stdout]   --> src/chess.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl Piece {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 30 |     fn new(kind: Kind, color: Color) -> Piece {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn encode(&self) -> char {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     fn decode(encoded: char) -> Piece {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `encode`, and `decode` are never used
[INFO] [stdout]    --> src/chess.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 158 | impl CastlingAvailability {
[INFO] [stdout]     | ------------------------- associated items in this implementation
[INFO] [stdout] 159 |     fn new() -> CastlingAvailability {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     fn encode(&self) -> String {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 |     fn decode(encoded: &str) -> CastlingAvailability {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Move` is never used
[INFO] [stdout]    --> src/chess.rs:209:6
[INFO] [stdout]     |
[INFO] [stdout] 209 | enum Move {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Square` is never constructed
[INFO] [stdout]   --> src/chess.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct Square {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MoveWithState` is never constructed
[INFO] [stdout]    --> src/chess.rs:235:8
[INFO] [stdout]     |
[INFO] [stdout] 235 | struct MoveWithState {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Game` is never constructed
[INFO] [stdout]    --> src/chess.rs:241:8
[INFO] [stdout]     |
[INFO] [stdout] 241 | struct Game {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `encode`, and `decode` are never used
[INFO] [stdout]   --> src/chess.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl Square {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 77 |     fn new(rank: u8, file: u8) -> Square {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn encode(&self) -> String {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88 |     fn decode(encoded: &str) -> Square {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Board` is never constructed
[INFO] [stdout]   --> src/chess.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | struct Board {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `encode`, `decode`, `make_move`, and `undo_move` are never used
[INFO] [stdout]    --> src/chess.rs:249:8
[INFO] [stdout]     |
[INFO] [stdout] 248 | impl Game {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 249 |     fn new() -> Game {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 258 |     fn encode(&self) -> String {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 277 |     fn decode(fen: &str) -> Game {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 282 |     fn make_move(&mut self, move_: Move) -> MoveWithState {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 375 |     fn undo_move(&mut self, move_with_state: MoveWithState) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get`, `set`, `encode`, and `decode` are never used
[INFO] [stdout]    --> src/chess.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 100 | impl Board {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] 101 |     fn new() -> Board {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn get(&self, square: Square) -> Option<Piece> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 111 |     fn set(&mut self, square: Square, piece: Option<Piece>) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     fn encode(&self) -> String {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     fn decode(fen: &str) -> Board {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CastlingAvailability` is never constructed
[INFO] [stdout]    --> src/chess.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 | struct CastlingAvailability {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `encode`, and `decode` are never used
[INFO] [stdout]    --> src/chess.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 158 | impl CastlingAvailability {
[INFO] [stdout]     | ------------------------- associated items in this implementation
[INFO] [stdout] 159 |     fn new() -> CastlingAvailability {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     fn encode(&self) -> String {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 |     fn decode(encoded: &str) -> CastlingAvailability {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Move` is never used
[INFO] [stdout]    --> src/chess.rs:209:6
[INFO] [stdout]     |
[INFO] [stdout] 209 | enum Move {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MoveWithState` is never constructed
[INFO] [stdout]    --> src/chess.rs:235:8
[INFO] [stdout]     |
[INFO] [stdout] 235 | struct MoveWithState {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Game` is never constructed
[INFO] [stdout]    --> src/chess.rs:241:8
[INFO] [stdout]     |
[INFO] [stdout] 241 | struct Game {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `encode`, `decode`, `make_move`, and `undo_move` are never used
[INFO] [stdout]    --> src/chess.rs:249:8
[INFO] [stdout]     |
[INFO] [stdout] 248 | impl Game {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 249 |     fn new() -> Game {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 258 |     fn encode(&self) -> String {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 277 |     fn decode(fen: &str) -> Game {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 282 |     fn make_move(&mut self, move_: Move) -> MoveWithState {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 375 |     fn undo_move(&mut self, move_with_state: MoveWithState) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "b724a0a5c249bf11fb82e828579939cbd47b2c10b3624678a1a6ab2b33c4ccd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b724a0a5c249bf11fb82e828579939cbd47b2c10b3624678a1a6ab2b33c4ccd4", kill_on_drop: false }`
[INFO] [stdout] b724a0a5c249bf11fb82e828579939cbd47b2c10b3624678a1a6ab2b33c4ccd4