[INFO] updating cached repository tzhenghao/GuessingGameInRust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tzhenghao/GuessingGameInRust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tzhenghao/GuessingGameInRust" "work/ex/beta-1.38-1/sources/1.37.0/gh/tzhenghao/GuessingGameInRust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tzhenghao/GuessingGameInRust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tzhenghao/GuessingGameInRust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tzhenghao/GuessingGameInRust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tzhenghao/GuessingGameInRust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 68d0683606e77c6e370d2dd9cfe8282dec13eba5
[INFO] sha for GitHub repo tzhenghao/GuessingGameInRust: 68d0683606e77c6e370d2dd9cfe8282dec13eba5
[INFO] validating manifest of tzhenghao/GuessingGameInRust 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 tzhenghao/GuessingGameInRust 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 tzhenghao/GuessingGameInRust
[INFO] finished frobbing tzhenghao/GuessingGameInRust
[INFO] frobbed toml for tzhenghao/GuessingGameInRust written to work/ex/beta-1.38-1/sources/1.37.0/gh/tzhenghao/GuessingGameInRust/Cargo.toml
[INFO] started frobbing tzhenghao/GuessingGameInRust
[INFO] finished frobbing tzhenghao/GuessingGameInRust
[INFO] frobbed toml for tzhenghao/GuessingGameInRust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tzhenghao/GuessingGameInRust/Cargo.toml
[INFO] crate tzhenghao/GuessingGameInRust 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tzhenghao/GuessingGameInRust/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 tzhenghao/GuessingGameInRust 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tzhenghao/GuessingGameInRust:/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] f79f4f7e5d41d7578699a1a1644ddb2cbb874ae3bf08257aa4d83d76061666d8
[INFO] running `"docker" "start" "-a" "f79f4f7e5d41d7578699a1a1644ddb2cbb874ae3bf08257aa4d83d76061666d8"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "f79f4f7e5d41d7578699a1a1644ddb2cbb874ae3bf08257aa4d83d76061666d8"`
[INFO] running `"docker" "rm" "-f" "f79f4f7e5d41d7578699a1a1644ddb2cbb874ae3bf08257aa4d83d76061666d8"`
[INFO] [stdout] f79f4f7e5d41d7578699a1a1644ddb2cbb874ae3bf08257aa4d83d76061666d8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tzhenghao/GuessingGameInRust:/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] 3456c2ab884eee4aaba3789c74c57fec283f5aff5573c9cadee22bd07259d632
[INFO] running `"docker" "start" "-a" "3456c2ab884eee4aaba3789c74c57fec283f5aff5573c9cadee22bd07259d632"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "3456c2ab884eee4aaba3789c74c57fec283f5aff5573c9cadee22bd07259d632"`
[INFO] running `"docker" "rm" "-f" "3456c2ab884eee4aaba3789c74c57fec283f5aff5573c9cadee22bd07259d632"`
[INFO] [stdout] 3456c2ab884eee4aaba3789c74c57fec283f5aff5573c9cadee22bd07259d632
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tzhenghao/GuessingGameInRust:/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] bf2ab25465c87f514a8a86a88609049146b65dc3e2cf9de5962c6ede3c74744c
[INFO] running `"docker" "start" "-a" "bf2ab25465c87f514a8a86a88609049146b65dc3e2cf9de5962c6ede3c74744c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-2e80c2d99832cc3e
[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" "bf2ab25465c87f514a8a86a88609049146b65dc3e2cf9de5962c6ede3c74744c"`
[INFO] running `"docker" "rm" "-f" "bf2ab25465c87f514a8a86a88609049146b65dc3e2cf9de5962c6ede3c74744c"`
[INFO] [stdout] bf2ab25465c87f514a8a86a88609049146b65dc3e2cf9de5962c6ede3c74744c