[INFO] cloning repository https://github.com/asventon1/chess-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/asventon1/chess-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasventon1%2Fchess-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasventon1%2Fchess-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 22cbc1fc5275a64c0a13a1283c92264633b3cc3b
[INFO] checking asventon1/chess-rust against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasventon1%2Fchess-rust" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/asventon1/chess-rust on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/asventon1/chess-rust
[INFO] finished tweaking git repo https://github.com/asventon1/chess-rust
[INFO] tweaked toml for git repo https://github.com/asventon1/chess-rust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/asventon1/chess-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", 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] 4b0814d56bd27822299be4abda6ecc3388e70d5963f599d86dbdb68d4adafd33
[INFO] running `Command { std: "docker" "start" "-a" "4b0814d56bd27822299be4abda6ecc3388e70d5963f599d86dbdb68d4adafd33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b0814d56bd27822299be4abda6ecc3388e70d5963f599d86dbdb68d4adafd33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b0814d56bd27822299be4abda6ecc3388e70d5963f599d86dbdb68d4adafd33", kill_on_drop: false }`
[INFO] [stdout] 4b0814d56bd27822299be4abda6ecc3388e70d5963f599d86dbdb68d4adafd33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 34f13cb887a6aa0a789c65d0a624ea2aa09dec1e2d935351a6b9cc7de5c505c5
[INFO] running `Command { std: "docker" "start" "-a" "34f13cb887a6aa0a789c65d0a624ea2aa09dec1e2d935351a6b9cc7de5c505c5", kill_on_drop: false }`
[INFO] [stderr]     Checking chess-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let board = Board::new_from_fen(String::from("rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1")).expect("");
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `piece_type_to_char`
[INFO] [stdout]   --> src/game.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn piece_type_to_char(c: PieceType) -> char {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `render`
[INFO] [stdout]    --> src/game.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn render(&self) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let board = Board::new_from_fen(String::from("rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1")).expect("");
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `piece_type_to_char`
[INFO] [stdout]   --> src/game.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn piece_type_to_char(c: PieceType) -> char {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `render`
[INFO] [stdout]    --> src/game.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn render(&self) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "34f13cb887a6aa0a789c65d0a624ea2aa09dec1e2d935351a6b9cc7de5c505c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34f13cb887a6aa0a789c65d0a624ea2aa09dec1e2d935351a6b9cc7de5c505c5", kill_on_drop: false }`
[INFO] [stdout] 34f13cb887a6aa0a789c65d0a624ea2aa09dec1e2d935351a6b9cc7de5c505c5