Dec 18 14:10:07.878 INFO checking mammut-0.12.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 14:10:07.879 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/mammut/0.12.0:/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 18 14:10:08.047 INFO [stdout] 16adb4967c4ade7cd018ae916eb1aec84a3b64a6fcf1add5a1e7f614baa2862f
Dec 18 14:10:08.049 INFO running `"docker" "start" "-a" "16adb4967c4ade7cd018ae916eb1aec84a3b64a6fcf1add5a1e7f614baa2862f"`
Dec 18 14:10:08.907 INFO [stderr]     Checking doc-comment v0.1.2
Dec 18 14:10:08.916 INFO [stderr]     Checking hyperx v0.13.1
Dec 18 14:10:11.432 INFO [stderr]     Checking mammut v0.12.0 (/opt/crater/workdir)
Dec 18 14:10:22.016 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.32s
Dec 18 14:10:22.978 INFO running `"docker" "inspect" "16adb4967c4ade7cd018ae916eb1aec84a3b64a6fcf1add5a1e7f614baa2862f"`
Dec 18 14:10:23.238 INFO running `"docker" "rm" "-f" "16adb4967c4ade7cd018ae916eb1aec84a3b64a6fcf1add5a1e7f614baa2862f"`
Dec 18 14:10:23.372 INFO [stdout] 16adb4967c4ade7cd018ae916eb1aec84a3b64a6fcf1add5a1e7f614baa2862f