[INFO] updating cached repository ChosunOne/ants
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ChosunOne/ants
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ChosunOne/ants" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/ChosunOne/ants"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/ChosunOne/ants'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ChosunOne/ants" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/ChosunOne/ants"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/ChosunOne/ants'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9c41faf017d50cb668ae42e30ca2e74692f6b951
[INFO] sha for GitHub repo ChosunOne/ants: 9c41faf017d50cb668ae42e30ca2e74692f6b951
[INFO] validating manifest of ChosunOne/ants on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ChosunOne/ants on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ChosunOne/ants
[INFO] finished frobbing ChosunOne/ants
[INFO] frobbed toml for ChosunOne/ants written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/ChosunOne/ants/Cargo.toml
[INFO] started frobbing ChosunOne/ants
[INFO] finished frobbing ChosunOne/ants
[INFO] frobbed toml for ChosunOne/ants written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/ChosunOne/ants/Cargo.toml
[INFO] crate ChosunOne/ants has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ChosunOne/ants against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-3/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/ChosunOne/ants:/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" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f08d614937092bebca0088ef7b67f3ec462ca6e9d6b7d6b3197d651a253ec10e
[INFO] running `"docker" "start" "-a" "f08d614937092bebca0088ef7b67f3ec462ca6e9d6b7d6b3197d651a253ec10e"`
[INFO] [stderr]     Checking ants-ai-challenge v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: enum is never used: `Square`
[INFO] [stderr]  --> src/state.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Square {
[INFO] [stderr]   | ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Settings`
[INFO] [stderr]   --> src/state.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | struct Settings {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `x`
[INFO] [stderr]   --> src/state.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     x: usize,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `y`
[INFO] [stderr]   --> src/state.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     y: usize
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Level`
[INFO] [stderr]   --> src/state.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | struct Level {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Square`
[INFO] [stderr]  --> src/state.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Square {
[INFO] [stderr]   | ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Settings`
[INFO] [stderr]   --> src/state.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | struct Settings {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `x`
[INFO] [stderr]   --> src/state.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     x: usize,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `y`
[INFO] [stderr]   --> src/state.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     y: usize
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Level`
[INFO] [stderr]   --> src/state.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | struct Level {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `"docker" "inspect" "f08d614937092bebca0088ef7b67f3ec462ca6e9d6b7d6b3197d651a253ec10e"`
[INFO] running `"docker" "rm" "-f" "f08d614937092bebca0088ef7b67f3ec462ca6e9d6b7d6b3197d651a253ec10e"`
[INFO] [stdout] f08d614937092bebca0088ef7b67f3ec462ca6e9d6b7d6b3197d651a253ec10e