[INFO] updating cached repository johnfoley3/guessing_game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/johnfoley3/guessing_game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/johnfoley3/guessing_game" "work/ex/beta-1.38-1/sources/1.37.0/gh/johnfoley3/guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/johnfoley3/guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/johnfoley3/guessing_game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/johnfoley3/guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/johnfoley3/guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2e3ac421f254ddaf6e541955c34c82e2eeb7cb94
[INFO] sha for GitHub repo johnfoley3/guessing_game: 2e3ac421f254ddaf6e541955c34c82e2eeb7cb94
[INFO] validating manifest of johnfoley3/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 johnfoley3/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 johnfoley3/guessing_game
[INFO] finished frobbing johnfoley3/guessing_game
[INFO] frobbed toml for johnfoley3/guessing_game written to work/ex/beta-1.38-1/sources/1.37.0/gh/johnfoley3/guessing_game/Cargo.toml
[INFO] started frobbing johnfoley3/guessing_game
[INFO] finished frobbing johnfoley3/guessing_game
[INFO] frobbed toml for johnfoley3/guessing_game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/johnfoley3/guessing_game/Cargo.toml
[INFO] crate johnfoley3/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 johnfoley3/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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/johnfoley3/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] c51e862639d96bd0e48a3e9d2a1ae5db2bcac8017bdcccdd8f893f947d081280
[INFO] running `"docker" "start" "-a" "c51e862639d96bd0e48a3e9d2a1ae5db2bcac8017bdcccdd8f893f947d081280"`
[INFO] [stderr]    Compiling libc v0.2.29
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.00s
[INFO] running `"docker" "inspect" "c51e862639d96bd0e48a3e9d2a1ae5db2bcac8017bdcccdd8f893f947d081280"`
[INFO] running `"docker" "rm" "-f" "c51e862639d96bd0e48a3e9d2a1ae5db2bcac8017bdcccdd8f893f947d081280"`
[INFO] [stdout] c51e862639d96bd0e48a3e9d2a1ae5db2bcac8017bdcccdd8f893f947d081280
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/johnfoley3/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] 9abe6ee5b1304138eade1c7ef34d36b15b532cb845b534d48bf25697a9d4e01f
[INFO] running `"docker" "start" "-a" "9abe6ee5b1304138eade1c7ef34d36b15b532cb845b534d48bf25697a9d4e01f"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "9abe6ee5b1304138eade1c7ef34d36b15b532cb845b534d48bf25697a9d4e01f"`
[INFO] running `"docker" "rm" "-f" "9abe6ee5b1304138eade1c7ef34d36b15b532cb845b534d48bf25697a9d4e01f"`
[INFO] [stdout] 9abe6ee5b1304138eade1c7ef34d36b15b532cb845b534d48bf25697a9d4e01f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/johnfoley3/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] 151ecb73cfc44997b68a262d967f042fca8cc493f07c932ffd9bcbbf466a74cb
[INFO] running `"docker" "start" "-a" "151ecb73cfc44997b68a262d967f042fca8cc493f07c932ffd9bcbbf466a74cb"`
[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 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-7ecf134f79b66149
[INFO] running `"docker" "inspect" "151ecb73cfc44997b68a262d967f042fca8cc493f07c932ffd9bcbbf466a74cb"`
[INFO] running `"docker" "rm" "-f" "151ecb73cfc44997b68a262d967f042fca8cc493f07c932ffd9bcbbf466a74cb"`
[INFO] [stdout] 151ecb73cfc44997b68a262d967f042fca8cc493f07c932ffd9bcbbf466a74cb