[INFO] updating cached repository DamonPalovaara/minesweeper.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DamonPalovaara/minesweeper.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DamonPalovaara/minesweeper.rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/DamonPalovaara/minesweeper.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/DamonPalovaara/minesweeper.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DamonPalovaara/minesweeper.rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DamonPalovaara/minesweeper.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DamonPalovaara/minesweeper.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a5a75f8082dc292dba5500d637a880256e0aede2
[INFO] sha for GitHub repo DamonPalovaara/minesweeper.rs: a5a75f8082dc292dba5500d637a880256e0aede2
[INFO] validating manifest of DamonPalovaara/minesweeper.rs 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 DamonPalovaara/minesweeper.rs 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 DamonPalovaara/minesweeper.rs
[INFO] finished frobbing DamonPalovaara/minesweeper.rs
[INFO] frobbed toml for DamonPalovaara/minesweeper.rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/DamonPalovaara/minesweeper.rs/Cargo.toml
[INFO] started frobbing DamonPalovaara/minesweeper.rs
[INFO] finished frobbing DamonPalovaara/minesweeper.rs
[INFO] frobbed toml for DamonPalovaara/minesweeper.rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DamonPalovaara/minesweeper.rs/Cargo.toml
[INFO] crate DamonPalovaara/minesweeper.rs 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 DamonPalovaara/minesweeper.rs 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DamonPalovaara/minesweeper.rs:/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] acd8fb93df9ee604d94ab612319c7755b6377328f4efd62ed98a230360c1c382
[INFO] running `"docker" "start" "-a" "acd8fb93df9ee604d94ab612319c7755b6377328f4efd62ed98a230360c1c382"`
[INFO] [stderr]    Compiling read_input v0.8.0
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Reset`
[INFO] [stderr]    --> src/main.rs:148:2
[INFO] [stderr]     |
[INFO] [stderr] 148 |     Reset,         // Reset the game
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.34s
[INFO] running `"docker" "inspect" "acd8fb93df9ee604d94ab612319c7755b6377328f4efd62ed98a230360c1c382"`
[INFO] running `"docker" "rm" "-f" "acd8fb93df9ee604d94ab612319c7755b6377328f4efd62ed98a230360c1c382"`
[INFO] [stdout] acd8fb93df9ee604d94ab612319c7755b6377328f4efd62ed98a230360c1c382
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DamonPalovaara/minesweeper.rs:/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] 206f220578273063c6d43866949fff2edf7b3ceea05b2a5cece28f749f73484c
[INFO] running `"docker" "start" "-a" "206f220578273063c6d43866949fff2edf7b3ceea05b2a5cece28f749f73484c"`
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Reset`
[INFO] [stderr]    --> src/main.rs:148:2
[INFO] [stderr]     |
[INFO] [stderr] 148 |     Reset,         // Reset the game
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "206f220578273063c6d43866949fff2edf7b3ceea05b2a5cece28f749f73484c"`
[INFO] running `"docker" "rm" "-f" "206f220578273063c6d43866949fff2edf7b3ceea05b2a5cece28f749f73484c"`
[INFO] [stdout] 206f220578273063c6d43866949fff2edf7b3ceea05b2a5cece28f749f73484c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DamonPalovaara/minesweeper.rs:/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] fe582cd5b1fabd2c48b0d05a54f79389f8d9ff6ba7602990433e41b9ea5d3b66
[INFO] running `"docker" "start" "-a" "fe582cd5b1fabd2c48b0d05a54f79389f8d9ff6ba7602990433e41b9ea5d3b66"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/minesweeper-868c099af2612df1
[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" "fe582cd5b1fabd2c48b0d05a54f79389f8d9ff6ba7602990433e41b9ea5d3b66"`
[INFO] running `"docker" "rm" "-f" "fe582cd5b1fabd2c48b0d05a54f79389f8d9ff6ba7602990433e41b9ea5d3b66"`
[INFO] [stdout] fe582cd5b1fabd2c48b0d05a54f79389f8d9ff6ba7602990433e41b9ea5d3b66