Dec 04 10:08:46.010 INFO checking simbo1905/extension_methods against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 10:08:46.011 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 04 10:08:46.416 INFO [stdout] 384d5b5be2f24f6dbd39b13dcf7ee54767836d6b0a42c6fe182480bac093b81c
Dec 04 10:08:46.419 INFO running `"docker" "start" "-a" "384d5b5be2f24f6dbd39b13dcf7ee54767836d6b0a42c6fe182480bac093b81c"`
Dec 04 10:08:47.879 INFO [stderr] usermod: no changes
Dec 04 10:08:48.002 INFO [stderr]     Checking some_library v0.1.0 (/source/some_library)
Dec 04 10:08:48.002 INFO [stderr]     Checking serde_json v1.0.2
Dec 04 10:08:50.372 INFO [stderr]     Checking some_extension v0.1.0 (/source/some_extension)
Dec 04 10:08:50.808 INFO [stderr]     Checking extension_methods v0.1.0 (/source)
Dec 04 10:08:51.663 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.75s
Dec 04 10:08:51.667 INFO [stderr] su: No module specific data is present
Dec 04 10:08:53.017 INFO running `"docker" "inspect" "384d5b5be2f24f6dbd39b13dcf7ee54767836d6b0a42c6fe182480bac093b81c"`
Dec 04 10:08:53.415 INFO running `"docker" "rm" "-f" "384d5b5be2f24f6dbd39b13dcf7ee54767836d6b0a42c6fe182480bac093b81c"`
Dec 04 10:08:53.822 INFO [stdout] 384d5b5be2f24f6dbd39b13dcf7ee54767836d6b0a42c6fe182480bac093b81c