Dec 05 04:25:32.538 INFO checking webdriver_client-0.2.2 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 04:25:32.538 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 05 04:25:32.767 INFO [stdout] a5362bb4b7c0c119422799cab254d32eeb9e5f894d453c4ce7c432e24bc43312
Dec 05 04:25:32.775 INFO running `"docker" "start" "-a" "a5362bb4b7c0c119422799cab254d32eeb9e5f894d453c4ce7c432e24bc43312"`
Dec 05 04:25:34.315 INFO [stderr] usermod: no changes
Dec 05 04:25:34.486 INFO [stderr]     Checking nix v0.5.1
Dec 05 04:25:34.486 INFO [stderr]     Checking hyper v0.10.15
Dec 05 04:25:34.486 INFO [stderr]     Checking stderrlog v0.2.4
Dec 05 04:25:34.491 INFO [stderr]     Checking env_logger v0.4.3
Dec 05 04:25:39.621 INFO [stderr]     Checking rustyline v1.0.0
Dec 05 04:25:41.147 INFO [stderr]     Checking webdriver_client v0.2.2 (/source)
Dec 05 04:25:53.603 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.26s
Dec 05 04:25:53.614 INFO [stderr] su: No module specific data is present
Dec 05 04:25:54.316 INFO running `"docker" "inspect" "a5362bb4b7c0c119422799cab254d32eeb9e5f894d453c4ce7c432e24bc43312"`
Dec 05 04:25:54.799 INFO running `"docker" "rm" "-f" "a5362bb4b7c0c119422799cab254d32eeb9e5f894d453c4ce7c432e24bc43312"`
Dec 05 04:25:55.140 INFO [stdout] a5362bb4b7c0c119422799cab254d32eeb9e5f894d453c4ce7c432e24bc43312