Dec 12 05:00:04.474 INFO checking webdriver_client-0.2.2 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 05:00:04.474 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 05:00:04.839 INFO [stdout] 6c292a1d38399310b43806c48fc87b55cd4f6c1e83db9feafb3abed34695617b
Dec 12 05:00:04.841 INFO running `"docker" "start" "-a" "6c292a1d38399310b43806c48fc87b55cd4f6c1e83db9feafb3abed34695617b"`
Dec 12 05:00:05.219 INFO [stderr] usermod: no changes
Dec 12 05:00:05.380 INFO [stderr]     Checking nix v0.5.1
Dec 12 05:00:05.380 INFO [stderr]     Checking hyper v0.10.15
Dec 12 05:00:05.380 INFO [stderr]     Checking stderrlog v0.2.4
Dec 12 05:00:05.396 INFO [stderr]     Checking env_logger v0.4.3
Dec 12 05:00:12.053 INFO [stderr]     Checking rustyline v1.0.0
Dec 12 05:00:14.016 INFO [stderr]     Checking webdriver_client v0.2.2 (/source)
Dec 12 05:00:25.110 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.87s
Dec 12 05:00:25.117 INFO [stderr] su: No module specific data is present
Dec 12 05:00:25.368 INFO running `"docker" "inspect" "6c292a1d38399310b43806c48fc87b55cd4f6c1e83db9feafb3abed34695617b"`
Dec 12 05:00:25.456 INFO running `"docker" "rm" "-f" "6c292a1d38399310b43806c48fc87b55cd4f6c1e83db9feafb3abed34695617b"`
Dec 12 05:00:25.622 INFO [stdout] 6c292a1d38399310b43806c48fc87b55cd4f6c1e83db9feafb3abed34695617b