Dec 19 19:35:26.300 INFO checking brayniac/smolping against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 19:35:26.301 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/brayniac/smolping:/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 19:35:26.515 INFO [stdout] 0194b195f460068190f4d15776134e193be0b6920d83a09363a0037777f27f15
Dec 19 19:35:26.515 INFO running `"docker" "start" "-a" "0194b195f460068190f4d15776134e193be0b6920d83a09363a0037777f27f15"`
Dec 19 19:35:27.740 INFO [stderr]     Checking byteorder v1.0.0
Dec 19 19:35:27.740 INFO [stderr]     Checking managed v0.3.0
Dec 19 19:35:27.745 INFO [stderr]     Checking log-panics v1.1.0
Dec 19 19:35:28.405 INFO [stderr]     Checking smoltcp v0.3.0
Dec 19 19:35:30.509 INFO [stderr]     Checking smolping v0.0.1-pre (/opt/crater/workdir)
Dec 19 19:35:30.792 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.09s
Dec 19 19:35:31.114 INFO running `"docker" "inspect" "0194b195f460068190f4d15776134e193be0b6920d83a09363a0037777f27f15"`
Dec 19 19:35:31.208 INFO running `"docker" "rm" "-f" "0194b195f460068190f4d15776134e193be0b6920d83a09363a0037777f27f15"`
Dec 19 19:35:31.325 INFO [stdout] 0194b195f460068190f4d15776134e193be0b6920d83a09363a0037777f27f15