[INFO] updating cached repository tubo28/reversi
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tubo28/reversi
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tubo28/reversi" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/tubo28/reversi"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/tubo28/reversi'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tubo28/reversi" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/tubo28/reversi"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/tubo28/reversi'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d4f9131cf0c9c3b291dd706cf226224e5c5ee05b
[INFO] sha for GitHub repo tubo28/reversi: d4f9131cf0c9c3b291dd706cf226224e5c5ee05b
[INFO] validating manifest of tubo28/reversi on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tubo28/reversi on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tubo28/reversi
[INFO] finished frobbing tubo28/reversi
[INFO] frobbed toml for tubo28/reversi written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/tubo28/reversi/Cargo.toml
[INFO] started frobbing tubo28/reversi
[INFO] finished frobbing tubo28/reversi
[INFO] frobbed toml for tubo28/reversi written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/tubo28/reversi/Cargo.toml
[INFO] crate tubo28/reversi already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tubo28/reversi against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-4/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/tubo28/reversi:/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=forbid" "-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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ecccf9b88119773f5188b95d044fb14a17e107b0c95d7a26c8534fb7b92618c8
[INFO] running `"docker" "start" "-a" "ecccf9b88119773f5188b95d044fb14a17e107b0c95d7a26c8534fb7b92618c8"`
[INFO] [stderr]     Checking reversi v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `HumanPlayer`
[INFO] [stderr]    --> src/reversi.rs:476:1
[INFO] [stderr]     |
[INFO] [stderr] 476 | pub struct HumanPlayer;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/reversi.rs:479:5
[INFO] [stderr]     |
[INFO] [stderr] 479 |     pub fn new() -> HumanPlayer {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HumanPlayer`
[INFO] [stderr]    --> src/reversi.rs:476:1
[INFO] [stderr]     |
[INFO] [stderr] 476 | pub struct HumanPlayer;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/reversi.rs:479:5
[INFO] [stderr]     |
[INFO] [stderr] 479 |     pub fn new() -> HumanPlayer {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `"docker" "inspect" "ecccf9b88119773f5188b95d044fb14a17e107b0c95d7a26c8534fb7b92618c8"`
[INFO] running `"docker" "rm" "-f" "ecccf9b88119773f5188b95d044fb14a17e107b0c95d7a26c8534fb7b92618c8"`
[INFO] [stdout] ecccf9b88119773f5188b95d044fb14a17e107b0c95d7a26c8534fb7b92618c8