[INFO] cloning repository https://github.com/slothmanxyz/rust-chess-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/slothmanxyz/rust-chess-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslothmanxyz%2Frust-chess-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslothmanxyz%2Frust-chess-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a15a0d12a29419496b7638bdb49c223fe3d55cac
[INFO] testing slothmanxyz/rust-chess-engine against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslothmanxyz%2Frust-chess-engine" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/slothmanxyz/rust-chess-engine on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/slothmanxyz/rust-chess-engine
[INFO] finished tweaking git repo https://github.com/slothmanxyz/rust-chess-engine
[INFO] tweaked toml for git repo https://github.com/slothmanxyz/rust-chess-engine written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/slothmanxyz/rust-chess-engine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bounded-integer v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d044161200db0434a14f199e3f0e701d207d19135b34bd741305adf164017697
[INFO] running `Command { std: "docker" "start" "-a" "d044161200db0434a14f199e3f0e701d207d19135b34bd741305adf164017697", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d044161200db0434a14f199e3f0e701d207d19135b34bd741305adf164017697", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d044161200db0434a14f199e3f0e701d207d19135b34bd741305adf164017697", kill_on_drop: false }`
[INFO] [stdout] d044161200db0434a14f199e3f0e701d207d19135b34bd741305adf164017697
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de8cb22b683482e8f07d68f0f86af14691878f6652b9bf8ef1688304ba85fc8f
[INFO] running `Command { std: "docker" "start" "-a" "de8cb22b683482e8f07d68f0f86af14691878f6652b9bf8ef1688304ba85fc8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling bounded-integer v0.5.0
[INFO] [stderr]    Compiling rust_chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/piece.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/engine.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/engine.rs:137:38
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   board: ..,
[INFO] [stdout]     |                              ^^ expected struct `board::Board`, found struct `RangeFull`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/engine.rs:140:43
[INFO] [stdout]     |
[INFO] [stdout] 140 | ...                   black_king: (),
[INFO] [stdout]     |                                   ^^ expected tuple, found `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note:  expected tuple `(u8, u8)`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_chess` due to 3 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "de8cb22b683482e8f07d68f0f86af14691878f6652b9bf8ef1688304ba85fc8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de8cb22b683482e8f07d68f0f86af14691878f6652b9bf8ef1688304ba85fc8f", kill_on_drop: false }`
[INFO] [stdout] de8cb22b683482e8f07d68f0f86af14691878f6652b9bf8ef1688304ba85fc8f