[INFO] updating cached repository rsstdd/Rust_Strat_Game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rsstdd/Rust_Strat_Game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rsstdd/Rust_Strat_Game" "work/ex/beta-1.38-1/sources/1.37.0/gh/rsstdd/Rust_Strat_Game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/rsstdd/Rust_Strat_Game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rsstdd/Rust_Strat_Game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rsstdd/Rust_Strat_Game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rsstdd/Rust_Strat_Game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 222232efbf56d081684a0e6d486e197cb2d65b34
[INFO] sha for GitHub repo rsstdd/Rust_Strat_Game: 222232efbf56d081684a0e6d486e197cb2d65b34
[INFO] validating manifest of rsstdd/Rust_Strat_Game 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 rsstdd/Rust_Strat_Game 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 rsstdd/Rust_Strat_Game
[INFO] finished frobbing rsstdd/Rust_Strat_Game
[INFO] frobbed toml for rsstdd/Rust_Strat_Game written to work/ex/beta-1.38-1/sources/1.37.0/gh/rsstdd/Rust_Strat_Game/Cargo.toml
[INFO] started frobbing rsstdd/Rust_Strat_Game
[INFO] finished frobbing rsstdd/Rust_Strat_Game
[INFO] frobbed toml for rsstdd/Rust_Strat_Game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rsstdd/Rust_Strat_Game/Cargo.toml
[INFO] crate rsstdd/Rust_Strat_Game 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 rsstdd/Rust_Strat_Game 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rsstdd/Rust_Strat_Game:/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] 0c925a2df66c87aa9b3775b9c20c6455d5141488f72832db50bf578aa88288b3
[INFO] running `"docker" "start" "-a" "0c925a2df66c87aa9b3775b9c20c6455d5141488f72832db50bf578aa88288b3"`
[INFO] [stderr]    Compiling strat-game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Square`
[INFO] [stderr]   --> src/main.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | struct Square {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Grid`
[INFO] [stderr]   --> src/main.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | struct Grid {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `generate_empty`
[INFO] [stderr]   --> src/main.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn generate_empty(size_x: usize, size_y: usize) -> Grid { // returns a grid
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "0c925a2df66c87aa9b3775b9c20c6455d5141488f72832db50bf578aa88288b3"`
[INFO] running `"docker" "rm" "-f" "0c925a2df66c87aa9b3775b9c20c6455d5141488f72832db50bf578aa88288b3"`
[INFO] [stdout] 0c925a2df66c87aa9b3775b9c20c6455d5141488f72832db50bf578aa88288b3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rsstdd/Rust_Strat_Game:/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] 392e5813b72274631b393302d0847fef5b4904c1a92c16c956facca999578110
[INFO] running `"docker" "start" "-a" "392e5813b72274631b393302d0847fef5b4904c1a92c16c956facca999578110"`
[INFO] [stderr]    Compiling strat-game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "392e5813b72274631b393302d0847fef5b4904c1a92c16c956facca999578110"`
[INFO] running `"docker" "rm" "-f" "392e5813b72274631b393302d0847fef5b4904c1a92c16c956facca999578110"`
[INFO] [stdout] 392e5813b72274631b393302d0847fef5b4904c1a92c16c956facca999578110
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rsstdd/Rust_Strat_Game:/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] e9eaac33c907ce9dee33d6fe69b2d1726707581da47f8a70250fd44ff9433418
[INFO] running `"docker" "start" "-a" "e9eaac33c907ce9dee33d6fe69b2d1726707581da47f8a70250fd44ff9433418"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/strat_game-6bfb2b503cecb5b2
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_empty_grid ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e9eaac33c907ce9dee33d6fe69b2d1726707581da47f8a70250fd44ff9433418"`
[INFO] running `"docker" "rm" "-f" "e9eaac33c907ce9dee33d6fe69b2d1726707581da47f8a70250fd44ff9433418"`
[INFO] [stdout] e9eaac33c907ce9dee33d6fe69b2d1726707581da47f8a70250fd44ff9433418