Dec 17 22:55:10.976 INFO checking incyclum/rust-guessing-game against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 22:55:10.977 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/incyclum/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 22:55:11.388 INFO [stdout] f8e3b527b9445900ff6f3c0bfcb6d382aa90856e7b4c786b05dc34161e77a0be
Dec 17 22:55:11.388 INFO running `"docker" "start" "-a" "f8e3b527b9445900ff6f3c0bfcb6d382aa90856e7b4c786b05dc34161e77a0be"`
Dec 17 22:55:12.928 INFO [stderr]    Compiling libc v0.2.44
Dec 17 22:55:15.261 INFO [stderr]     Checking rand v0.6.1
Dec 17 22:55:17.940 INFO [stderr]     Checking guessing_game v0.1.0 (/opt/crater/workdir)
Dec 17 22:55:18.492 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.64s
Dec 17 22:55:19.286 INFO running `"docker" "inspect" "f8e3b527b9445900ff6f3c0bfcb6d382aa90856e7b4c786b05dc34161e77a0be"`
Dec 17 22:55:19.670 INFO running `"docker" "rm" "-f" "f8e3b527b9445900ff6f3c0bfcb6d382aa90856e7b4c786b05dc34161e77a0be"`
Dec 17 22:55:19.960 INFO [stdout] f8e3b527b9445900ff6f3c0bfcb6d382aa90856e7b4c786b05dc34161e77a0be