[INFO] updating cached repository LukeEuler/ab-guess-game [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/LukeEuler/ab-guess-game [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/LukeEuler/ab-guess-game" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/LukeEuler/ab-guess-game"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/LukeEuler/ab-guess-game'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/LukeEuler/ab-guess-game" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/LukeEuler/ab-guess-game"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/LukeEuler/ab-guess-game'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 6eedad7463d5cea1e374624e22df6537ca249968 [INFO] sha for GitHub repo LukeEuler/ab-guess-game: 6eedad7463d5cea1e374624e22df6537ca249968 [INFO] validating manifest of LukeEuler/ab-guess-game 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 LukeEuler/ab-guess-game 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 LukeEuler/ab-guess-game [INFO] finished frobbing LukeEuler/ab-guess-game [INFO] frobbed toml for LukeEuler/ab-guess-game written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/LukeEuler/ab-guess-game/Cargo.toml [INFO] started frobbing LukeEuler/ab-guess-game [INFO] finished frobbing LukeEuler/ab-guess-game [INFO] frobbed toml for LukeEuler/ab-guess-game written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/LukeEuler/ab-guess-game/Cargo.toml [INFO] crate LukeEuler/ab-guess-game 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 LukeEuler/ab-guess-game against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-4/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/LukeEuler/ab-guess-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=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] 499642f400344ae6cf080fc6868b2faa2696a7ce16063c674d11f6bf0d4b1c67 [INFO] running `"docker" "start" "-a" "499642f400344ae6cf080fc6868b2faa2696a7ce16063c674d11f6bf0d4b1c67"` [INFO] [stderr] Checking libc v0.2.21 [INFO] [stderr] Checking rand v0.3.15 [INFO] [stderr] Checking ab-guess-game v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.45s [INFO] running `"docker" "inspect" "499642f400344ae6cf080fc6868b2faa2696a7ce16063c674d11f6bf0d4b1c67"` [INFO] running `"docker" "rm" "-f" "499642f400344ae6cf080fc6868b2faa2696a7ce16063c674d11f6bf0d4b1c67"` [INFO] [stdout] 499642f400344ae6cf080fc6868b2faa2696a7ce16063c674d11f6bf0d4b1c67