Dec 11 06:01:24.954 INFO checking wspeirs/map-test against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 06:01:24.954 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 11 06:01:25.340 INFO [stdout] 84bed35d6e517bbad06c2850431275c45cd559d96e27000b1530b63d7baa90e0
Dec 11 06:01:25.344 INFO running `"docker" "start" "-a" "84bed35d6e517bbad06c2850431275c45cd559d96e27000b1530b63d7baa90e0"`
Dec 11 06:01:26.683 INFO [stderr] usermod: no changes
Dec 11 06:01:26.790 INFO [stderr]     Checking rand v0.4.2
Dec 11 06:01:28.085 INFO [stderr]     Checking rand v0.3.22
Dec 11 06:01:28.192 INFO [stderr]     Checking skiplist v0.2.10
Dec 11 06:01:28.192 INFO [stderr]     Checking stable-skiplist v0.1.1
Dec 11 06:01:29.327 INFO [stderr]     Checking map-test v0.1.0 (/source)
Dec 11 06:01:29.612 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.89s
Dec 11 06:01:29.617 INFO [stderr] su: No module specific data is present
Dec 11 06:01:30.294 INFO running `"docker" "inspect" "84bed35d6e517bbad06c2850431275c45cd559d96e27000b1530b63d7baa90e0"`
Dec 11 06:01:30.603 INFO running `"docker" "rm" "-f" "84bed35d6e517bbad06c2850431275c45cd559d96e27000b1530b63d7baa90e0"`
Dec 11 06:01:30.931 INFO [stdout] 84bed35d6e517bbad06c2850431275c45cd559d96e27000b1530b63d7baa90e0