[INFO] updating cached repository ChiVincent/guessing-game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ChiVincent/guessing-game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ChiVincent/guessing-game" "work/ex/beta-1.38-1/sources/1.37.0/gh/ChiVincent/guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ChiVincent/guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ChiVincent/guessing-game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ChiVincent/guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ChiVincent/guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b798c0b860553ba0cf9d2d5663652f7348a224aa
[INFO] sha for GitHub repo ChiVincent/guessing-game: b798c0b860553ba0cf9d2d5663652f7348a224aa
[INFO] validating manifest of ChiVincent/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 ChiVincent/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 ChiVincent/guessing-game
[INFO] finished frobbing ChiVincent/guessing-game
[INFO] frobbed toml for ChiVincent/guessing-game written to work/ex/beta-1.38-1/sources/1.37.0/gh/ChiVincent/guessing-game/Cargo.toml
[INFO] started frobbing ChiVincent/guessing-game
[INFO] finished frobbing ChiVincent/guessing-game
[INFO] frobbed toml for ChiVincent/guessing-game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ChiVincent/guessing-game/Cargo.toml
[INFO] crate ChiVincent/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 ChiVincent/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-5/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/ChiVincent/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] 7807ce311aca7599a49a6ab6231040694d628e324b2ce51ebc594f9742d08a07
[INFO] running `"docker" "start" "-a" "7807ce311aca7599a49a6ab6231040694d628e324b2ce51ebc594f9742d08a07"`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.00s
[INFO] running `"docker" "inspect" "7807ce311aca7599a49a6ab6231040694d628e324b2ce51ebc594f9742d08a07"`
[INFO] running `"docker" "rm" "-f" "7807ce311aca7599a49a6ab6231040694d628e324b2ce51ebc594f9742d08a07"`
[INFO] [stdout] 7807ce311aca7599a49a6ab6231040694d628e324b2ce51ebc594f9742d08a07
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/ChiVincent/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] d941b3b369f4510813e07c587e3cdbd2b85c6770c02240c54412ec4302c6b64d
[INFO] running `"docker" "start" "-a" "d941b3b369f4510813e07c587e3cdbd2b85c6770c02240c54412ec4302c6b64d"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "d941b3b369f4510813e07c587e3cdbd2b85c6770c02240c54412ec4302c6b64d"`
[INFO] running `"docker" "rm" "-f" "d941b3b369f4510813e07c587e3cdbd2b85c6770c02240c54412ec4302c6b64d"`
[INFO] [stdout] d941b3b369f4510813e07c587e3cdbd2b85c6770c02240c54412ec4302c6b64d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/ChiVincent/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] 794bd30ba64b590dd3a928aa6d0dfc43892be9ed5a2b6d33aaeeb73eaf867bc7
[INFO] running `"docker" "start" "-a" "794bd30ba64b590dd3a928aa6d0dfc43892be9ed5a2b6d33aaeeb73eaf867bc7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-310a8a59cb3465c5
[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" "794bd30ba64b590dd3a928aa6d0dfc43892be9ed5a2b6d33aaeeb73eaf867bc7"`
[INFO] running `"docker" "rm" "-f" "794bd30ba64b590dd3a928aa6d0dfc43892be9ed5a2b6d33aaeeb73eaf867bc7"`
[INFO] [stdout] 794bd30ba64b590dd3a928aa6d0dfc43892be9ed5a2b6d33aaeeb73eaf867bc7