Dec 12 05:52:16.819 INFO checking traverse-0.0.12 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 05:52:16.819 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 05:52:17.261 INFO [stdout] 4a3f189c72a20ced41c8f33b8e76669a10ea8f09c8da6aa91c549626d40e3432
Dec 12 05:52:17.263 INFO running `"docker" "start" "-a" "4a3f189c72a20ced41c8f33b8e76669a10ea8f09c8da6aa91c549626d40e3432"`
Dec 12 05:52:19.155 INFO [stderr] usermod: no changes
Dec 12 05:52:19.208 INFO [stderr] warning: dependency (num) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
Dec 12 05:52:19.332 INFO [stderr]     Checking env_logger v0.5.13
Dec 12 05:52:19.332 INFO [stderr]     Checking traverse v0.0.12 (/source)
Dec 12 05:52:21.683 INFO [stderr]     Checking quickcheck v0.7.2
Dec 12 05:52:26.984 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.80s
Dec 12 05:52:26.988 INFO [stderr] su: No module specific data is present
Dec 12 05:52:27.368 INFO running `"docker" "inspect" "4a3f189c72a20ced41c8f33b8e76669a10ea8f09c8da6aa91c549626d40e3432"`
Dec 12 05:52:27.516 INFO running `"docker" "rm" "-f" "4a3f189c72a20ced41c8f33b8e76669a10ea8f09c8da6aa91c549626d40e3432"`
Dec 12 05:52:27.612 INFO [stdout] 4a3f189c72a20ced41c8f33b8e76669a10ea8f09c8da6aa91c549626d40e3432