Dec 06 17:31:35.664 INFO testing webdriver_client-0.2.2 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 17:31:35.664 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 06 17:31:35.968 INFO [stdout] a91c0e5a6cb3ae563007ba4e2d887ef93bf4105d13f6bd767331f86246b2156e
Dec 06 17:31:35.970 INFO running `"docker" "start" "-a" "a91c0e5a6cb3ae563007ba4e2d887ef93bf4105d13f6bd767331f86246b2156e"`
Dec 06 17:31:37.037 INFO [stderr] usermod: no changes
Dec 06 17:31:37.300 INFO [stderr]    Compiling nix v0.5.1
Dec 06 17:31:37.309 INFO [stderr]    Compiling hyper v0.10.15
Dec 06 17:31:37.320 INFO [stderr]    Compiling stderrlog v0.2.4
Dec 06 17:31:45.973 INFO [stderr]    Compiling rustyline v1.0.0
Dec 06 17:31:51.290 INFO [stderr]    Compiling webdriver_client v0.2.2 (/source)
Dec 06 17:32:02.196 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.13s
Dec 06 17:32:02.206 INFO [stderr] su: No module specific data is present
Dec 06 17:32:02.561 INFO running `"docker" "inspect" "a91c0e5a6cb3ae563007ba4e2d887ef93bf4105d13f6bd767331f86246b2156e"`
Dec 06 17:32:02.710 INFO running `"docker" "rm" "-f" "a91c0e5a6cb3ae563007ba4e2d887ef93bf4105d13f6bd767331f86246b2156e"`
Dec 06 17:32:02.839 INFO [stdout] a91c0e5a6cb3ae563007ba4e2d887ef93bf4105d13f6bd767331f86246b2156e
Dec 06 17:32:02.842 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 06 17:32:03.079 INFO [stdout] 3f8011a18e0bc946ce7e7df2cfd9c2782c1d8032e7de9a487d41d5a41ab91f0b
Dec 06 17:32:03.081 INFO running `"docker" "start" "-a" "3f8011a18e0bc946ce7e7df2cfd9c2782c1d8032e7de9a487d41d5a41ab91f0b"`
Dec 06 17:32:03.584 INFO [stderr] usermod: no changes
Dec 06 17:32:03.731 INFO [stderr]    Compiling env_logger v0.4.3
Dec 06 17:32:05.523 INFO [stderr]    Compiling webdriver_client v0.2.2 (/source)
Dec 06 17:32:15.092 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.48s
Dec 06 17:32:15.099 INFO [stderr] su: No module specific data is present
Dec 06 17:32:15.606 INFO running `"docker" "inspect" "3f8011a18e0bc946ce7e7df2cfd9c2782c1d8032e7de9a487d41d5a41ab91f0b"`
Dec 06 17:32:15.738 INFO running `"docker" "rm" "-f" "3f8011a18e0bc946ce7e7df2cfd9c2782c1d8032e7de9a487d41d5a41ab91f0b"`
Dec 06 17:32:15.873 INFO [stdout] 3f8011a18e0bc946ce7e7df2cfd9c2782c1d8032e7de9a487d41d5a41ab91f0b