[INFO] updating cached repository SerhiiBilyk/Battleship
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SerhiiBilyk/Battleship
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SerhiiBilyk/Battleship" "work/ex/beta-1.38-1/sources/1.37.0/gh/SerhiiBilyk/Battleship"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/SerhiiBilyk/Battleship'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SerhiiBilyk/Battleship" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SerhiiBilyk/Battleship"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SerhiiBilyk/Battleship'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 75991860a24a3d0ba6590f1bf35c1073cf342110
[INFO] sha for GitHub repo SerhiiBilyk/Battleship: 75991860a24a3d0ba6590f1bf35c1073cf342110
[INFO] validating manifest of SerhiiBilyk/Battleship 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 SerhiiBilyk/Battleship 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 SerhiiBilyk/Battleship
[INFO] finished frobbing SerhiiBilyk/Battleship
[INFO] frobbed toml for SerhiiBilyk/Battleship written to work/ex/beta-1.38-1/sources/1.37.0/gh/SerhiiBilyk/Battleship/Cargo.toml
[INFO] started frobbing SerhiiBilyk/Battleship
[INFO] finished frobbing SerhiiBilyk/Battleship
[INFO] frobbed toml for SerhiiBilyk/Battleship written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SerhiiBilyk/Battleship/Cargo.toml
[INFO] crate SerhiiBilyk/Battleship 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 SerhiiBilyk/Battleship 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SerhiiBilyk/Battleship:/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] bbdba260b7a5a758e76ad4d20c92b1b4ad2a658c1fec189b5ac9f8c15717e204
[INFO] running `"docker" "start" "-a" "bbdba260b7a5a758e76ad4d20c92b1b4ad2a658c1fec189b5ac9f8c15717e204"`
[INFO] [stderr]    Compiling hello-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Vertical`
[INFO] [stderr]   --> src/helpers.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   Vertical,
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `"docker" "inspect" "bbdba260b7a5a758e76ad4d20c92b1b4ad2a658c1fec189b5ac9f8c15717e204"`
[INFO] running `"docker" "rm" "-f" "bbdba260b7a5a758e76ad4d20c92b1b4ad2a658c1fec189b5ac9f8c15717e204"`
[INFO] [stdout] bbdba260b7a5a758e76ad4d20c92b1b4ad2a658c1fec189b5ac9f8c15717e204
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SerhiiBilyk/Battleship:/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] c6b3fcd0e2e01a5eb137953f177f440c5daa6939d87bfc66332d69f3f76b2886
[INFO] running `"docker" "start" "-a" "c6b3fcd0e2e01a5eb137953f177f440c5daa6939d87bfc66332d69f3f76b2886"`
[INFO] [stderr]    Compiling hello-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Vertical`
[INFO] [stderr]   --> src/helpers.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   Vertical,
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "c6b3fcd0e2e01a5eb137953f177f440c5daa6939d87bfc66332d69f3f76b2886"`
[INFO] running `"docker" "rm" "-f" "c6b3fcd0e2e01a5eb137953f177f440c5daa6939d87bfc66332d69f3f76b2886"`
[INFO] [stdout] c6b3fcd0e2e01a5eb137953f177f440c5daa6939d87bfc66332d69f3f76b2886
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SerhiiBilyk/Battleship:/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] c0891f44041530ed595e88325f4df8c5b6c274bc7c507b0deeecc1b83c3c0e67
[INFO] running `"docker" "start" "-a" "c0891f44041530ed595e88325f4df8c5b6c274bc7c507b0deeecc1b83c3c0e67"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_rust-7001e0f93289b251
[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" "c0891f44041530ed595e88325f4df8c5b6c274bc7c507b0deeecc1b83c3c0e67"`
[INFO] running `"docker" "rm" "-f" "c0891f44041530ed595e88325f4df8c5b6c274bc7c507b0deeecc1b83c3c0e67"`
[INFO] [stdout] c0891f44041530ed595e88325f4df8c5b6c274bc7c507b0deeecc1b83c3c0e67