Dec 17 14:16:48.541 INFO checking swashcap/guessing_game against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 14:16:48.541 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/swashcap/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 14:16:49.058 INFO [stdout] 317d105762061afe23ecaa75dfc1e37ab8cb6089d53cfb2ef87a8fc2923dd9f7
Dec 17 14:16:49.060 INFO running `"docker" "start" "-a" "317d105762061afe23ecaa75dfc1e37ab8cb6089d53cfb2ef87a8fc2923dd9f7"`
Dec 17 14:16:50.693 INFO [stderr]     Checking libc v0.2.24
Dec 17 14:16:51.613 INFO [stderr]     Checking rand v0.3.15
Dec 17 14:16:52.796 INFO [stderr]     Checking guessing_game v0.1.0 (/opt/crater/workdir)
Dec 17 14:16:53.112 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.46s
Dec 17 14:16:54.200 INFO running `"docker" "inspect" "317d105762061afe23ecaa75dfc1e37ab8cb6089d53cfb2ef87a8fc2923dd9f7"`
Dec 17 14:16:54.484 INFO running `"docker" "rm" "-f" "317d105762061afe23ecaa75dfc1e37ab8cb6089d53cfb2ef87a8fc2923dd9f7"`
Dec 17 14:16:54.724 INFO [stdout] 317d105762061afe23ecaa75dfc1e37ab8cb6089d53cfb2ef87a8fc2923dd9f7