Dec 17 17:23:26.237 INFO checking r2p2/snake against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 17:23:26.237 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/r2p2/snake:/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 17:23:26.666 INFO [stdout] b735470bf5d4e6a2c1f54e3f251ce2b301c43b5f9a09126c2f31714bd657d292
Dec 17 17:23:26.666 INFO running `"docker" "start" "-a" "b735470bf5d4e6a2c1f54e3f251ce2b301c43b5f9a09126c2f31714bd657d292"`
Dec 17 17:23:28.488 INFO [stderr]     Checking tempfile v2.2.0
Dec 17 17:23:28.941 INFO [stderr]     Checking gag v0.1.9
Dec 17 17:23:29.216 INFO [stderr]     Checking rustty v0.1.12
Dec 17 17:23:29.811 INFO [stderr]     Checking snake v0.1.0 (/opt/crater/workdir)
Dec 17 17:23:30.450 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
Dec 17 17:23:31.723 INFO running `"docker" "inspect" "b735470bf5d4e6a2c1f54e3f251ce2b301c43b5f9a09126c2f31714bd657d292"`
Dec 17 17:23:32.052 INFO running `"docker" "rm" "-f" "b735470bf5d4e6a2c1f54e3f251ce2b301c43b5f9a09126c2f31714bd657d292"`
Dec 17 17:23:32.400 INFO [stdout] b735470bf5d4e6a2c1f54e3f251ce2b301c43b5f9a09126c2f31714bd657d292