Dec 19 05:25:08.941 INFO checking wspeirs/map-test against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 05:25:08.941 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/wspeirs/map-test:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 05:25:09.374 INFO [stdout] 4ed736ba9072d4cd888c2feae68fe623441d26f569481ad93c45d9c68922afa4
Dec 19 05:25:09.380 INFO running `"docker" "start" "-a" "4ed736ba9072d4cd888c2feae68fe623441d26f569481ad93c45d9c68922afa4"`
Dec 19 05:25:10.902 INFO [stderr]     Checking rand v0.3.22
Dec 19 05:25:11.023 INFO [stderr]     Checking stable-skiplist v0.1.1
Dec 19 05:25:11.023 INFO [stderr]     Checking skiplist v0.2.10
Dec 19 05:25:12.764 INFO [stderr]     Checking map-test v0.1.0 (/opt/crater/workdir)
Dec 19 05:25:13.199 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.31s
Dec 19 05:25:13.940 INFO running `"docker" "inspect" "4ed736ba9072d4cd888c2feae68fe623441d26f569481ad93c45d9c68922afa4"`
Dec 19 05:25:14.194 INFO running `"docker" "rm" "-f" "4ed736ba9072d4cd888c2feae68fe623441d26f569481ad93c45d9c68922afa4"`
Dec 19 05:25:14.484 INFO [stdout] 4ed736ba9072d4cd888c2feae68fe623441d26f569481ad93c45d9c68922afa4