[INFO] cloning repository https://github.com/juancuencca/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/juancuencca/chess_engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuancuencca%2Fchess_engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuancuencca%2Fchess_engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9efca148dfa7bebb7fb7808070a837efec95012
[INFO] testing juancuencca/chess_engine against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuancuencca%2Fchess_engine" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/juancuencca/chess_engine
[INFO] finished tweaking git repo https://github.com/juancuencca/chess_engine
[INFO] tweaked toml for git repo https://github.com/juancuencca/chess_engine written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/juancuencca/chess_engine on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/juancuencca/chess_engine 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" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 84b8a2729d6332f9f6d39d531efbb9f7f2bda41ac5aaea14df5b4bca7c5792d8
[INFO] running `Command { std: "docker" "start" "84b8a2729d6332f9f6d39d531efbb9f7f2bda41ac5aaea14df5b4bca7c5792d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84b8a2729d6332f9f6d39d531efbb9f7f2bda41ac5aaea14df5b4bca7c5792d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "84b8a2729d6332f9f6d39d531efbb9f7f2bda41ac5aaea14df5b4bca7c5792d8" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84b8a2729d6332f9f6d39d531efbb9f7f2bda41ac5aaea14df5b4bca7c5792d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "84b8a2729d6332f9f6d39d531efbb9f7f2bda41ac5aaea14df5b4bca7c5792d8" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling chess_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `color` is never read
[INFO] [stdout]   --> src/lib.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 73 | struct Cell {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 74 |     piece: Option<Box<dyn Piece>>,
[INFO] [stdout] 75 |     color: Color,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rows` is never read
[INFO] [stdout]   --> src/lib.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub struct Board {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 89 |     rows: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "84b8a2729d6332f9f6d39d531efbb9f7f2bda41ac5aaea14df5b4bca7c5792d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "84b8a2729d6332f9f6d39d531efbb9f7f2bda41ac5aaea14df5b4bca7c5792d8" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stdout] warning: field `color` is never read
[INFO] [stdout]   --> src/lib.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 73 | struct Cell {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 74 |     piece: Option<Box<dyn Piece>>,
[INFO] [stdout] 75 |     color: Color,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rows` is never read
[INFO] [stdout]   --> src/lib.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub struct Board {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 89 |     rows: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chess_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `color` is never read
[INFO] [stdout]   --> src/lib.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 73 | struct Cell {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 74 |     piece: Option<Box<dyn Piece>>,
[INFO] [stdout] 75 |     color: Color,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rows` is never read
[INFO] [stdout]   --> src/lib.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub struct Board {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 89 |     rows: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "84b8a2729d6332f9f6d39d531efbb9f7f2bda41ac5aaea14df5b4bca7c5792d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "84b8a2729d6332f9f6d39d531efbb9f7f2bda41ac5aaea14df5b4bca7c5792d8" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: field `color` is never read
[INFO] [stderr]   --> src/lib.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 73 | struct Cell {
[INFO] [stderr]    |        ---- field in this struct
[INFO] [stderr] 74 |     piece: Option<Box<dyn Piece>>,
[INFO] [stderr] 75 |     color: Color,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `rows` is never read
[INFO] [stderr]   --> src/lib.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub struct Board {
[INFO] [stderr]    |            ----- field in this struct
[INFO] [stderr] 89 |     rows: usize,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `chess_engine` (lib) generated 2 warnings
[INFO] [stderr] warning: `chess_engine` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/chess_engine-5121f30a87bd6c7b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests chess_engine
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "84b8a2729d6332f9f6d39d531efbb9f7f2bda41ac5aaea14df5b4bca7c5792d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84b8a2729d6332f9f6d39d531efbb9f7f2bda41ac5aaea14df5b4bca7c5792d8", kill_on_drop: false }`
[INFO] [stdout] 84b8a2729d6332f9f6d39d531efbb9f7f2bda41ac5aaea14df5b4bca7c5792d8
