[INFO] updating cached repository leira1192/rust_guessgame
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/leira1192/rust_guessgame
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/leira1192/rust_guessgame" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/leira1192/rust_guessgame"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/leira1192/rust_guessgame'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/leira1192/rust_guessgame" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/leira1192/rust_guessgame"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/leira1192/rust_guessgame'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1c396e1b554a94db2f8e7821e8e8cfe37fe86936
[INFO] sha for GitHub repo leira1192/rust_guessgame: 1c396e1b554a94db2f8e7821e8e8cfe37fe86936
[INFO] validating manifest of leira1192/rust_guessgame on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of leira1192/rust_guessgame on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing leira1192/rust_guessgame
[INFO] finished frobbing leira1192/rust_guessgame
[INFO] frobbed toml for leira1192/rust_guessgame written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/leira1192/rust_guessgame/Cargo.toml
[INFO] started frobbing leira1192/rust_guessgame
[INFO] finished frobbing leira1192/rust_guessgame
[INFO] frobbed toml for leira1192/rust_guessgame written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/leira1192/rust_guessgame/Cargo.toml
[INFO] crate leira1192/rust_guessgame already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking leira1192/rust_guessgame against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-5/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/leira1192/rust_guessgame:/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=forbid" "-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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 50dc7147dc7cf7b367cdf280757d1d7d8b397bd8de55df6a4c30724e9c30e455
[INFO] running `"docker" "start" "-a" "50dc7147dc7cf7b367cdf280757d1d7d8b397bd8de55df6a4c30724e9c30e455"`
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `"docker" "inspect" "50dc7147dc7cf7b367cdf280757d1d7d8b397bd8de55df6a4c30724e9c30e455"`
[INFO] running `"docker" "rm" "-f" "50dc7147dc7cf7b367cdf280757d1d7d8b397bd8de55df6a4c30724e9c30e455"`
[INFO] [stdout] 50dc7147dc7cf7b367cdf280757d1d7d8b397bd8de55df6a4c30724e9c30e455