[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 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/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 201874fee493db03a599afa094d39fd7b2f57b7f45b353826fc75d18503adc39
[INFO] running `"docker" "start" "-a" "201874fee493db03a599afa094d39fd7b2f57b7f45b353826fc75d18503adc39"`
[INFO] [stderr]    Compiling libc v0.2.55
[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 5.62s
[INFO] running `"docker" "inspect" "201874fee493db03a599afa094d39fd7b2f57b7f45b353826fc75d18503adc39"`
[INFO] running `"docker" "rm" "-f" "201874fee493db03a599afa094d39fd7b2f57b7f45b353826fc75d18503adc39"`
[INFO] [stdout] 201874fee493db03a599afa094d39fd7b2f57b7f45b353826fc75d18503adc39
[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/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ad373a84837044babc007d9f1e1e81f2cb21eaa6882de7b8d61e5e91d9b3c605
[INFO] running `"docker" "start" "-a" "ad373a84837044babc007d9f1e1e81f2cb21eaa6882de7b8d61e5e91d9b3c605"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "ad373a84837044babc007d9f1e1e81f2cb21eaa6882de7b8d61e5e91d9b3c605"`
[INFO] running `"docker" "rm" "-f" "ad373a84837044babc007d9f1e1e81f2cb21eaa6882de7b8d61e5e91d9b3c605"`
[INFO] [stdout] ad373a84837044babc007d9f1e1e81f2cb21eaa6882de7b8d61e5e91d9b3c605
[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/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 841adde36bcf3a35a235044cc28e1dca395a236152e9888cd1ea26f83a077a0d
[INFO] running `"docker" "start" "-a" "841adde36bcf3a35a235044cc28e1dca395a236152e9888cd1ea26f83a077a0d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-263143c2b82a0d2b
[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] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-f02a64ca98867fac
[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] [stderr]    Doc-tests guessing_game
[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" "841adde36bcf3a35a235044cc28e1dca395a236152e9888cd1ea26f83a077a0d"`
[INFO] running `"docker" "rm" "-f" "841adde36bcf3a35a235044cc28e1dca395a236152e9888cd1ea26f83a077a0d"`
[INFO] [stdout] 841adde36bcf3a35a235044cc28e1dca395a236152e9888cd1ea26f83a077a0d