[INFO] updating cached repository potatogopher/rust-guessing-game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/potatogopher/rust-guessing-game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/potatogopher/rust-guessing-game" "work/ex/beta-1.37-6/sources/1.36.0/gh/potatogopher/rust-guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/potatogopher/rust-guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/potatogopher/rust-guessing-game" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/potatogopher/rust-guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/potatogopher/rust-guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 30146aecce4c4d523023f424f6d6da602b175284
[INFO] sha for GitHub repo potatogopher/rust-guessing-game: 30146aecce4c4d523023f424f6d6da602b175284
[INFO] validating manifest of potatogopher/rust-guessing-game on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of potatogopher/rust-guessing-game on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing potatogopher/rust-guessing-game
[INFO] finished frobbing potatogopher/rust-guessing-game
[INFO] frobbed toml for potatogopher/rust-guessing-game written to work/ex/beta-1.37-6/sources/1.36.0/gh/potatogopher/rust-guessing-game/Cargo.toml
[INFO] started frobbing potatogopher/rust-guessing-game
[INFO] finished frobbing potatogopher/rust-guessing-game
[INFO] frobbed toml for potatogopher/rust-guessing-game written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/potatogopher/rust-guessing-game/Cargo.toml
[INFO] crate potatogopher/rust-guessing-game already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing potatogopher/rust-guessing-game against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/potatogopher/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] ddb6553411afeeda6c5c465edf1e578deadae603ac1fdeed473a360632292b48
[INFO] running `"docker" "start" "-a" "ddb6553411afeeda6c5c465edf1e578deadae603ac1fdeed473a360632292b48"`
[INFO] [stderr]    Compiling libc v0.2.17
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling guessing-game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.39s
[INFO] running `"docker" "inspect" "ddb6553411afeeda6c5c465edf1e578deadae603ac1fdeed473a360632292b48"`
[INFO] running `"docker" "rm" "-f" "ddb6553411afeeda6c5c465edf1e578deadae603ac1fdeed473a360632292b48"`
[INFO] [stdout] ddb6553411afeeda6c5c465edf1e578deadae603ac1fdeed473a360632292b48
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/potatogopher/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7d8e3ec0aec52810c96492de37d9a4322df6f640bf78ce638445fe10c5ea6ca7
[INFO] running `"docker" "start" "-a" "7d8e3ec0aec52810c96492de37d9a4322df6f640bf78ce638445fe10c5ea6ca7"`
[INFO] [stderr]    Compiling guessing-game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "7d8e3ec0aec52810c96492de37d9a4322df6f640bf78ce638445fe10c5ea6ca7"`
[INFO] running `"docker" "rm" "-f" "7d8e3ec0aec52810c96492de37d9a4322df6f640bf78ce638445fe10c5ea6ca7"`
[INFO] [stdout] 7d8e3ec0aec52810c96492de37d9a4322df6f640bf78ce638445fe10c5ea6ca7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/potatogopher/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] d1fe25b91c07905e54027905aea37d23a60ed5d619ebc5a44f8ed5d0d6a17dc2
[INFO] running `"docker" "start" "-a" "d1fe25b91c07905e54027905aea37d23a60ed5d619ebc5a44f8ed5d0d6a17dc2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-ca1444245244d5b3
[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" "d1fe25b91c07905e54027905aea37d23a60ed5d619ebc5a44f8ed5d0d6a17dc2"`
[INFO] running `"docker" "rm" "-f" "d1fe25b91c07905e54027905aea37d23a60ed5d619ebc5a44f8ed5d0d6a17dc2"`
[INFO] [stdout] d1fe25b91c07905e54027905aea37d23a60ed5d619ebc5a44f8ed5d0d6a17dc2