[INFO] updating cached repository isalevine/rustbook-guessing-game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/isalevine/rustbook-guessing-game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/isalevine/rustbook-guessing-game" "work/ex/beta-1.37-6/sources/1.36.0/gh/isalevine/rustbook-guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/isalevine/rustbook-guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/isalevine/rustbook-guessing-game" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/isalevine/rustbook-guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/isalevine/rustbook-guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4d63c4a0dc951a0e6b7618aa34e2314023bebe93
[INFO] sha for GitHub repo isalevine/rustbook-guessing-game: 4d63c4a0dc951a0e6b7618aa34e2314023bebe93
[INFO] validating manifest of isalevine/rustbook-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 isalevine/rustbook-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 isalevine/rustbook-guessing-game
[INFO] finished frobbing isalevine/rustbook-guessing-game
[INFO] frobbed toml for isalevine/rustbook-guessing-game written to work/ex/beta-1.37-6/sources/1.36.0/gh/isalevine/rustbook-guessing-game/Cargo.toml
[INFO] started frobbing isalevine/rustbook-guessing-game
[INFO] finished frobbing isalevine/rustbook-guessing-game
[INFO] frobbed toml for isalevine/rustbook-guessing-game written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/isalevine/rustbook-guessing-game/Cargo.toml
[INFO] crate isalevine/rustbook-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 isalevine/rustbook-guessing-game against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/isalevine/rustbook-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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 5b53a4cee61c18231fec6111869c4705bcaae35137c2e2e3a31381ed7e6f77f0
[INFO] running `"docker" "start" "-a" "5b53a4cee61c18231fec6111869c4705bcaae35137c2e2e3a31381ed7e6f77f0"`
[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 2.15s
[INFO] running `"docker" "inspect" "5b53a4cee61c18231fec6111869c4705bcaae35137c2e2e3a31381ed7e6f77f0"`
[INFO] running `"docker" "rm" "-f" "5b53a4cee61c18231fec6111869c4705bcaae35137c2e2e3a31381ed7e6f77f0"`
[INFO] [stdout] 5b53a4cee61c18231fec6111869c4705bcaae35137c2e2e3a31381ed7e6f77f0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/isalevine/rustbook-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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] d58264ae191c031138b6ef18b2309b6b1cdf4a305ca1e5944de6a2d9d3d91f1b
[INFO] running `"docker" "start" "-a" "d58264ae191c031138b6ef18b2309b6b1cdf4a305ca1e5944de6a2d9d3d91f1b"`
[INFO] [stderr]    Compiling guessing-game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `"docker" "inspect" "d58264ae191c031138b6ef18b2309b6b1cdf4a305ca1e5944de6a2d9d3d91f1b"`
[INFO] running `"docker" "rm" "-f" "d58264ae191c031138b6ef18b2309b6b1cdf4a305ca1e5944de6a2d9d3d91f1b"`
[INFO] [stdout] d58264ae191c031138b6ef18b2309b6b1cdf4a305ca1e5944de6a2d9d3d91f1b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/isalevine/rustbook-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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] f39a0554628584c70f0937812abe0ff2ef5ae1db97b89c89228318d5b30c2304
[INFO] running `"docker" "start" "-a" "f39a0554628584c70f0937812abe0ff2ef5ae1db97b89c89228318d5b30c2304"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-ee1530d1bf645041
[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" "f39a0554628584c70f0937812abe0ff2ef5ae1db97b89c89228318d5b30c2304"`
[INFO] running `"docker" "rm" "-f" "f39a0554628584c70f0937812abe0ff2ef5ae1db97b89c89228318d5b30c2304"`
[INFO] [stdout] f39a0554628584c70f0937812abe0ff2ef5ae1db97b89c89228318d5b30c2304