[INFO] updating cached repository CrimsonBolt/Rust-Guessing-Game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/CrimsonBolt/Rust-Guessing-Game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/CrimsonBolt/Rust-Guessing-Game" "work/ex/beta-1.38-1/sources/1.37.0/gh/CrimsonBolt/Rust-Guessing-Game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/CrimsonBolt/Rust-Guessing-Game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/CrimsonBolt/Rust-Guessing-Game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CrimsonBolt/Rust-Guessing-Game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CrimsonBolt/Rust-Guessing-Game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3c288d4a67fe12bf2171c4b5662cf585079d32bc
[INFO] sha for GitHub repo CrimsonBolt/Rust-Guessing-Game: 3c288d4a67fe12bf2171c4b5662cf585079d32bc
[INFO] validating manifest of CrimsonBolt/Rust-Guessing-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 CrimsonBolt/Rust-Guessing-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 CrimsonBolt/Rust-Guessing-Game
[INFO] finished frobbing CrimsonBolt/Rust-Guessing-Game
[INFO] frobbed toml for CrimsonBolt/Rust-Guessing-Game written to work/ex/beta-1.38-1/sources/1.37.0/gh/CrimsonBolt/Rust-Guessing-Game/Cargo.toml
[INFO] started frobbing CrimsonBolt/Rust-Guessing-Game
[INFO] finished frobbing CrimsonBolt/Rust-Guessing-Game
[INFO] frobbed toml for CrimsonBolt/Rust-Guessing-Game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CrimsonBolt/Rust-Guessing-Game/Cargo.toml
[INFO] crate CrimsonBolt/Rust-Guessing-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 CrimsonBolt/Rust-Guessing-Game 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-3/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/CrimsonBolt/Rust-Guessing-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 96852fd7b97c2ac8543b801a3ec16355f80febc49999b6970dd5bdc57b07e004
[INFO] running `"docker" "start" "-a" "96852fd7b97c2ac8543b801a3ec16355f80febc49999b6970dd5bdc57b07e004"`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.55s
[INFO] running `"docker" "inspect" "96852fd7b97c2ac8543b801a3ec16355f80febc49999b6970dd5bdc57b07e004"`
[INFO] running `"docker" "rm" "-f" "96852fd7b97c2ac8543b801a3ec16355f80febc49999b6970dd5bdc57b07e004"`
[INFO] [stdout] 96852fd7b97c2ac8543b801a3ec16355f80febc49999b6970dd5bdc57b07e004
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/CrimsonBolt/Rust-Guessing-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] c651fd04ec88ac3cb6a9c1bf545a1854013022aaf15e9e821f9af04683e6e34d
[INFO] running `"docker" "start" "-a" "c651fd04ec88ac3cb6a9c1bf545a1854013022aaf15e9e821f9af04683e6e34d"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "c651fd04ec88ac3cb6a9c1bf545a1854013022aaf15e9e821f9af04683e6e34d"`
[INFO] running `"docker" "rm" "-f" "c651fd04ec88ac3cb6a9c1bf545a1854013022aaf15e9e821f9af04683e6e34d"`
[INFO] [stdout] c651fd04ec88ac3cb6a9c1bf545a1854013022aaf15e9e821f9af04683e6e34d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/CrimsonBolt/Rust-Guessing-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 662f0249bb5ae5f5d35e47f423cf9db94d63e3889c5b6f17f319719676d1162d
[INFO] running `"docker" "start" "-a" "662f0249bb5ae5f5d35e47f423cf9db94d63e3889c5b6f17f319719676d1162d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-05def5ea4b4a72d0
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-26d49a89638ce722
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests guessing_game
[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] [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] [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" "662f0249bb5ae5f5d35e47f423cf9db94d63e3889c5b6f17f319719676d1162d"`
[INFO] running `"docker" "rm" "-f" "662f0249bb5ae5f5d35e47f423cf9db94d63e3889c5b6f17f319719676d1162d"`
[INFO] [stdout] 662f0249bb5ae5f5d35e47f423cf9db94d63e3889c5b6f17f319719676d1162d