[INFO] updating cached repository krisuh/rust-checkers
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/krisuh/rust-checkers
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/krisuh/rust-checkers" "work/ex/beta-1.38-1/sources/1.37.0/gh/krisuh/rust-checkers"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/krisuh/rust-checkers'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/krisuh/rust-checkers" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/krisuh/rust-checkers"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/krisuh/rust-checkers'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 46988a60b5285c85d1e193cd193a31f88f37a4c5
[INFO] sha for GitHub repo krisuh/rust-checkers: 46988a60b5285c85d1e193cd193a31f88f37a4c5
[INFO] validating manifest of krisuh/rust-checkers on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of krisuh/rust-checkers on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing krisuh/rust-checkers
[INFO] finished frobbing krisuh/rust-checkers
[INFO] frobbed toml for krisuh/rust-checkers written to work/ex/beta-1.38-1/sources/1.37.0/gh/krisuh/rust-checkers/Cargo.toml
[INFO] started frobbing krisuh/rust-checkers
[INFO] finished frobbing krisuh/rust-checkers
[INFO] frobbed toml for krisuh/rust-checkers written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/krisuh/rust-checkers/Cargo.toml
[INFO] crate krisuh/rust-checkers already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing krisuh/rust-checkers against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/krisuh/rust-checkers:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e1a7082f93a698da4b49d294fb2cda9c54f9e5660e146b0748247e79284566f0
[INFO] running `"docker" "start" "-a" "e1a7082f93a698da4b49d294fb2cda9c54f9e5660e146b0748247e79284566f0"`
[INFO] [stderr]    Compiling checkers v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `height`
[INFO] [stderr]  --> src/game/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     height: u8,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_occupied`
[INFO] [stderr]   --> src/game/mod.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn is_occupied(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "e1a7082f93a698da4b49d294fb2cda9c54f9e5660e146b0748247e79284566f0"`
[INFO] running `"docker" "rm" "-f" "e1a7082f93a698da4b49d294fb2cda9c54f9e5660e146b0748247e79284566f0"`
[INFO] [stdout] e1a7082f93a698da4b49d294fb2cda9c54f9e5660e146b0748247e79284566f0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/krisuh/rust-checkers:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 467696b429626c4efc47a68679a86e24cc16dc19195daea17560932f98472e43
[INFO] running `"docker" "start" "-a" "467696b429626c4efc47a68679a86e24cc16dc19195daea17560932f98472e43"`
[INFO] [stderr]    Compiling checkers v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `height`
[INFO] [stderr]  --> src/game/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     height: u8,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_occupied`
[INFO] [stderr]   --> src/game/mod.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn is_occupied(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "467696b429626c4efc47a68679a86e24cc16dc19195daea17560932f98472e43"`
[INFO] running `"docker" "rm" "-f" "467696b429626c4efc47a68679a86e24cc16dc19195daea17560932f98472e43"`
[INFO] [stdout] 467696b429626c4efc47a68679a86e24cc16dc19195daea17560932f98472e43
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/krisuh/rust-checkers:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] ba03a04a27e87d0d3b22d11892b03a62f9b24c248de40bd763535b08f49589da
[INFO] running `"docker" "start" "-a" "ba03a04a27e87d0d3b22d11892b03a62f9b24c248de40bd763535b08f49589da"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/checkers-5e6b5c1f936a71b6
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ba03a04a27e87d0d3b22d11892b03a62f9b24c248de40bd763535b08f49589da"`
[INFO] running `"docker" "rm" "-f" "ba03a04a27e87d0d3b22d11892b03a62f9b24c248de40bd763535b08f49589da"`
[INFO] [stdout] ba03a04a27e87d0d3b22d11892b03a62f9b24c248de40bd763535b08f49589da