Dec 19 13:56:50.503 INFO checking kwelifin/guessing_game against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 13:56:50.503 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/kwelifin/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=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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 13:56:50.784 INFO [stdout] 6bfafacaeca46d478dda55e8f3d27995e4270513d1f5eb9c1cdbdbbc6af9f85a
Dec 19 13:56:50.786 INFO running `"docker" "start" "-a" "6bfafacaeca46d478dda55e8f3d27995e4270513d1f5eb9c1cdbdbbc6af9f85a"`
Dec 19 13:56:51.444 INFO [stderr]     Checking rand v0.3.20
Dec 19 13:56:52.665 INFO [stderr]     Checking guessing_game v0.1.0 (/opt/crater/workdir)
Dec 19 13:56:52.896 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
Dec 19 13:56:53.159 INFO running `"docker" "inspect" "6bfafacaeca46d478dda55e8f3d27995e4270513d1f5eb9c1cdbdbbc6af9f85a"`
Dec 19 13:56:53.247 INFO running `"docker" "rm" "-f" "6bfafacaeca46d478dda55e8f3d27995e4270513d1f5eb9c1cdbdbbc6af9f85a"`
Dec 19 13:56:53.303 INFO [stdout] 6bfafacaeca46d478dda55e8f3d27995e4270513d1f5eb9c1cdbdbbc6af9f85a