[INFO] updating cached repository LittleBigProgramming/RustGuessingGame
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/LittleBigProgramming/RustGuessingGame
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/LittleBigProgramming/RustGuessingGame" "work/ex/beta-1.38-1/sources/1.37.0/gh/LittleBigProgramming/RustGuessingGame"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/LittleBigProgramming/RustGuessingGame'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/LittleBigProgramming/RustGuessingGame" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/LittleBigProgramming/RustGuessingGame"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/LittleBigProgramming/RustGuessingGame'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 92522163c53b85f31a012dc9200789c8667110ee
[INFO] sha for GitHub repo LittleBigProgramming/RustGuessingGame: 92522163c53b85f31a012dc9200789c8667110ee
[INFO] validating manifest of LittleBigProgramming/RustGuessingGame 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 LittleBigProgramming/RustGuessingGame 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 LittleBigProgramming/RustGuessingGame
[INFO] finished frobbing LittleBigProgramming/RustGuessingGame
[INFO] frobbed toml for LittleBigProgramming/RustGuessingGame written to work/ex/beta-1.38-1/sources/1.37.0/gh/LittleBigProgramming/RustGuessingGame/Cargo.toml
[INFO] started frobbing LittleBigProgramming/RustGuessingGame
[INFO] finished frobbing LittleBigProgramming/RustGuessingGame
[INFO] frobbed toml for LittleBigProgramming/RustGuessingGame written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/LittleBigProgramming/RustGuessingGame/Cargo.toml
[INFO] crate LittleBigProgramming/RustGuessingGame 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 LittleBigProgramming/RustGuessingGame 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/LittleBigProgramming/RustGuessingGame:/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] e2df757d2cbf932d4177b0e9f1c69ed699bee0373fb154ab6dee60c584c48ec8
[INFO] running `"docker" "start" "-a" "e2df757d2cbf932d4177b0e9f1c69ed699bee0373fb154ab6dee60c584c48ec8"`
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `"docker" "inspect" "e2df757d2cbf932d4177b0e9f1c69ed699bee0373fb154ab6dee60c584c48ec8"`
[INFO] running `"docker" "rm" "-f" "e2df757d2cbf932d4177b0e9f1c69ed699bee0373fb154ab6dee60c584c48ec8"`
[INFO] [stdout] e2df757d2cbf932d4177b0e9f1c69ed699bee0373fb154ab6dee60c584c48ec8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/LittleBigProgramming/RustGuessingGame:/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] a882644b69bf6cc31520caacd91c9a9899114112b52980d6d8094657342f23c4
[INFO] running `"docker" "start" "-a" "a882644b69bf6cc31520caacd91c9a9899114112b52980d6d8094657342f23c4"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "a882644b69bf6cc31520caacd91c9a9899114112b52980d6d8094657342f23c4"`
[INFO] running `"docker" "rm" "-f" "a882644b69bf6cc31520caacd91c9a9899114112b52980d6d8094657342f23c4"`
[INFO] [stdout] a882644b69bf6cc31520caacd91c9a9899114112b52980d6d8094657342f23c4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/LittleBigProgramming/RustGuessingGame:/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] 7c8077cfc2f504bc6115bd4ec175f71aa898c7193a874586b3a8eec2ecc27de0
[INFO] running `"docker" "start" "-a" "7c8077cfc2f504bc6115bd4ec175f71aa898c7193a874586b3a8eec2ecc27de0"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-46774c244d8400bd
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7c8077cfc2f504bc6115bd4ec175f71aa898c7193a874586b3a8eec2ecc27de0"`
[INFO] running `"docker" "rm" "-f" "7c8077cfc2f504bc6115bd4ec175f71aa898c7193a874586b3a8eec2ecc27de0"`
[INFO] [stdout] 7c8077cfc2f504bc6115bd4ec175f71aa898c7193a874586b3a8eec2ecc27de0