Dec 19 08:45:23.597 INFO checking simonewebdesign/rust_guessing_game against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 08:45:23.597 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/simonewebdesign/rust_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 08:45:24.086 INFO [stdout] fba1daf7b76b55d74a505c9e7a3f6a03e9c5ea6afa561a1c59621e21d699bb6c
Dec 19 08:45:24.087 INFO running `"docker" "start" "-a" "fba1daf7b76b55d74a505c9e7a3f6a03e9c5ea6afa561a1c59621e21d699bb6c"`
Dec 19 08:45:26.009 INFO [stderr]     Checking libc v0.2.15
Dec 19 08:45:26.742 INFO [stderr]     Checking rand v0.3.14
Dec 19 08:45:27.926 INFO [stderr]     Checking guessing_game v0.1.0 (/opt/crater/workdir)
Dec 19 08:45:28.207 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.23s
Dec 19 08:45:28.962 INFO running `"docker" "inspect" "fba1daf7b76b55d74a505c9e7a3f6a03e9c5ea6afa561a1c59621e21d699bb6c"`
Dec 19 08:45:29.254 INFO running `"docker" "rm" "-f" "fba1daf7b76b55d74a505c9e7a3f6a03e9c5ea6afa561a1c59621e21d699bb6c"`
Dec 19 08:45:29.540 INFO [stdout] fba1daf7b76b55d74a505c9e7a3f6a03e9c5ea6afa561a1c59621e21d699bb6c