[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 beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 0ec7da1af37f16db99de1c2bcc429975c5046e633e1869175a508c9f529ef0dc
[INFO] running `"docker" "start" "-a" "0ec7da1af37f16db99de1c2bcc429975c5046e633e1869175a508c9f529ef0dc"`
[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 1.02s
[INFO] running `"docker" "inspect" "0ec7da1af37f16db99de1c2bcc429975c5046e633e1869175a508c9f529ef0dc"`
[INFO] running `"docker" "rm" "-f" "0ec7da1af37f16db99de1c2bcc429975c5046e633e1869175a508c9f529ef0dc"`
[INFO] [stdout] 0ec7da1af37f16db99de1c2bcc429975c5046e633e1869175a508c9f529ef0dc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] e945657468986508153ad746b3118eb3361fc6f2125e845ab36a9fbfbf720c31
[INFO] running `"docker" "start" "-a" "e945657468986508153ad746b3118eb3361fc6f2125e845ab36a9fbfbf720c31"`
[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 0.82s
[INFO] running `"docker" "inspect" "e945657468986508153ad746b3118eb3361fc6f2125e845ab36a9fbfbf720c31"`
[INFO] running `"docker" "rm" "-f" "e945657468986508153ad746b3118eb3361fc6f2125e845ab36a9fbfbf720c31"`
[INFO] [stdout] e945657468986508153ad746b3118eb3361fc6f2125e845ab36a9fbfbf720c31
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 48f4b4768e4d773876b55e646dec2e372cafc56a631c6bab7ac3a161153b30fd
[INFO] running `"docker" "start" "-a" "48f4b4768e4d773876b55e646dec2e372cafc56a631c6bab7ac3a161153b30fd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_rust-4e9eb5f3f6554f9a
[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" "48f4b4768e4d773876b55e646dec2e372cafc56a631c6bab7ac3a161153b30fd"`
[INFO] running `"docker" "rm" "-f" "48f4b4768e4d773876b55e646dec2e372cafc56a631c6bab7ac3a161153b30fd"`
[INFO] [stdout] 48f4b4768e4d773876b55e646dec2e372cafc56a631c6bab7ac3a161153b30fd