Dec 19 04:41:06.652 INFO checking zberwaldt/guessing-game against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 04:41:06.652 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/zberwaldt/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 04:41:07.072 INFO [stdout] 70bfd51a9cb661afe9d275e76fe6ff72290566d5a1e221ca2e96a3978c104507
Dec 19 04:41:07.080 INFO running `"docker" "start" "-a" "70bfd51a9cb661afe9d275e76fe6ff72290566d5a1e221ca2e96a3978c104507"`
Dec 19 04:41:08.840 INFO [stderr]     Checking rand v0.4.3
Dec 19 04:41:10.253 INFO [stderr]     Checking rand v0.3.22
Dec 19 04:41:10.420 INFO [stderr]     Checking guessing_game v0.1.0 (/opt/crater/workdir)
Dec 19 04:41:10.704 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.90s
Dec 19 04:41:11.456 INFO running `"docker" "inspect" "70bfd51a9cb661afe9d275e76fe6ff72290566d5a1e221ca2e96a3978c104507"`
Dec 19 04:41:11.798 INFO running `"docker" "rm" "-f" "70bfd51a9cb661afe9d275e76fe6ff72290566d5a1e221ca2e96a3978c104507"`
Dec 19 04:41:12.148 INFO [stdout] 70bfd51a9cb661afe9d275e76fe6ff72290566d5a1e221ca2e96a3978c104507