[INFO] updating cached repository peerhenry/rust_guessing_game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/peerhenry/rust_guessing_game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/peerhenry/rust_guessing_game" "work/ex/beta-1.38-1/sources/1.37.0/gh/peerhenry/rust_guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/peerhenry/rust_guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/peerhenry/rust_guessing_game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/peerhenry/rust_guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/peerhenry/rust_guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 562eb56c642f47910d4228c90f8e7123b3a847a9
[INFO] sha for GitHub repo peerhenry/rust_guessing_game: 562eb56c642f47910d4228c90f8e7123b3a847a9
[INFO] validating manifest of peerhenry/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 peerhenry/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 peerhenry/rust_guessing_game
[INFO] finished frobbing peerhenry/rust_guessing_game
[INFO] frobbed toml for peerhenry/rust_guessing_game written to work/ex/beta-1.38-1/sources/1.37.0/gh/peerhenry/rust_guessing_game/Cargo.toml
[INFO] started frobbing peerhenry/rust_guessing_game
[INFO] finished frobbing peerhenry/rust_guessing_game
[INFO] frobbed toml for peerhenry/rust_guessing_game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/peerhenry/rust_guessing_game/Cargo.toml
[INFO] crate peerhenry/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 peerhenry/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-6/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/peerhenry/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] 9b17b61bee191ad0f9718f94facec5caacf7f2eda82ece230200c2926a6ec5ed
[INFO] running `"docker" "start" "-a" "9b17b61bee191ad0f9718f94facec5caacf7f2eda82ece230200c2926a6ec5ed"`
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_os v0.1.1
[INFO] [stderr]    Compiling rand v0.6.4
[INFO] [stderr]    Compiling rust_guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.69s
[INFO] running `"docker" "inspect" "9b17b61bee191ad0f9718f94facec5caacf7f2eda82ece230200c2926a6ec5ed"`
[INFO] running `"docker" "rm" "-f" "9b17b61bee191ad0f9718f94facec5caacf7f2eda82ece230200c2926a6ec5ed"`
[INFO] [stdout] 9b17b61bee191ad0f9718f94facec5caacf7f2eda82ece230200c2926a6ec5ed
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/peerhenry/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] 4770f7e3e8cebe87dfe1bc860528f7344f7b71816544885aa43e468d634c9b41
[INFO] running `"docker" "start" "-a" "4770f7e3e8cebe87dfe1bc860528f7344f7b71816544885aa43e468d634c9b41"`
[INFO] [stderr]    Compiling rust_guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "4770f7e3e8cebe87dfe1bc860528f7344f7b71816544885aa43e468d634c9b41"`
[INFO] running `"docker" "rm" "-f" "4770f7e3e8cebe87dfe1bc860528f7344f7b71816544885aa43e468d634c9b41"`
[INFO] [stdout] 4770f7e3e8cebe87dfe1bc860528f7344f7b71816544885aa43e468d634c9b41
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/peerhenry/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] 984e17a4094c6f414b176c41fe522a941144936af98e758bf4451fb1b1e7cdac
[INFO] running `"docker" "start" "-a" "984e17a4094c6f414b176c41fe522a941144936af98e758bf4451fb1b1e7cdac"`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_guessing_game-cb388fd387b82777
[INFO] running `"docker" "inspect" "984e17a4094c6f414b176c41fe522a941144936af98e758bf4451fb1b1e7cdac"`
[INFO] running `"docker" "rm" "-f" "984e17a4094c6f414b176c41fe522a941144936af98e758bf4451fb1b1e7cdac"`
[INFO] [stdout] 984e17a4094c6f414b176c41fe522a941144936af98e758bf4451fb1b1e7cdac