[INFO] updating cached repository ryanplusplus/guessing_game.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ryanplusplus/guessing_game.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ryanplusplus/guessing_game.rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/ryanplusplus/guessing_game.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ryanplusplus/guessing_game.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ryanplusplus/guessing_game.rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ryanplusplus/guessing_game.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ryanplusplus/guessing_game.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 63a3598ace25602e8ec4f89e912935aab6732ef3
[INFO] sha for GitHub repo ryanplusplus/guessing_game.rs: 63a3598ace25602e8ec4f89e912935aab6732ef3
[INFO] validating manifest of ryanplusplus/guessing_game.rs 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 ryanplusplus/guessing_game.rs 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 ryanplusplus/guessing_game.rs
[INFO] finished frobbing ryanplusplus/guessing_game.rs
[INFO] frobbed toml for ryanplusplus/guessing_game.rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/ryanplusplus/guessing_game.rs/Cargo.toml
[INFO] started frobbing ryanplusplus/guessing_game.rs
[INFO] finished frobbing ryanplusplus/guessing_game.rs
[INFO] frobbed toml for ryanplusplus/guessing_game.rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ryanplusplus/guessing_game.rs/Cargo.toml
[INFO] crate ryanplusplus/guessing_game.rs 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 ryanplusplus/guessing_game.rs 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ryanplusplus/guessing_game.rs:/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] 6f1e8ff8424744daab9fa7f109d3aba5998fb9275ced5bd4befe59ae07e64677
[INFO] running `"docker" "start" "-a" "6f1e8ff8424744daab9fa7f109d3aba5998fb9275ced5bd4befe59ae07e64677"`
[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 1.27s
[INFO] running `"docker" "inspect" "6f1e8ff8424744daab9fa7f109d3aba5998fb9275ced5bd4befe59ae07e64677"`
[INFO] running `"docker" "rm" "-f" "6f1e8ff8424744daab9fa7f109d3aba5998fb9275ced5bd4befe59ae07e64677"`
[INFO] [stdout] 6f1e8ff8424744daab9fa7f109d3aba5998fb9275ced5bd4befe59ae07e64677
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ryanplusplus/guessing_game.rs:/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] 5d742fb52971c47bbb4c2dd92a8307ba2443c86e5f17178ab29056009c3bdc61
[INFO] running `"docker" "start" "-a" "5d742fb52971c47bbb4c2dd92a8307ba2443c86e5f17178ab29056009c3bdc61"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "5d742fb52971c47bbb4c2dd92a8307ba2443c86e5f17178ab29056009c3bdc61"`
[INFO] running `"docker" "rm" "-f" "5d742fb52971c47bbb4c2dd92a8307ba2443c86e5f17178ab29056009c3bdc61"`
[INFO] [stdout] 5d742fb52971c47bbb4c2dd92a8307ba2443c86e5f17178ab29056009c3bdc61
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ryanplusplus/guessing_game.rs:/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] c09f63466e9829c0a87f395660d20c1e116b9f374e7c95bbeaefb4583208f5a4
[INFO] running `"docker" "start" "-a" "c09f63466e9829c0a87f395660d20c1e116b9f374e7c95bbeaefb4583208f5a4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-e82f553ada5f6148
[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" "c09f63466e9829c0a87f395660d20c1e116b9f374e7c95bbeaefb4583208f5a4"`
[INFO] running `"docker" "rm" "-f" "c09f63466e9829c0a87f395660d20c1e116b9f374e7c95bbeaefb4583208f5a4"`
[INFO] [stdout] c09f63466e9829c0a87f395660d20c1e116b9f374e7c95bbeaefb4583208f5a4