Dec 05 06:54:45.472 INFO checking serde_derive_internals-0.23.1 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 06:54:45.472 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 06:54:45.883 INFO [stdout] b57095b877b7c396d80f9e18ee6a039a05baa84badbf597c9a5c4c8c507ac94e
Dec 05 06:54:45.888 INFO running `"docker" "start" "-a" "b57095b877b7c396d80f9e18ee6a039a05baa84badbf597c9a5c4c8c507ac94e"`
Dec 05 06:54:47.850 INFO [stderr] usermod: no changes
Dec 05 06:54:47.951 INFO [stderr]     Checking proc-macro2 v0.3.8
Dec 05 06:54:49.020 INFO [stderr]     Checking syn v0.13.11
Dec 05 06:54:51.515 INFO [stderr]     Checking serde_derive_internals v0.23.1 (/source)
Dec 05 06:54:52.759 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.87s
Dec 05 06:54:52.761 INFO [stderr] su: No module specific data is present
Dec 05 06:54:53.668 INFO running `"docker" "inspect" "b57095b877b7c396d80f9e18ee6a039a05baa84badbf597c9a5c4c8c507ac94e"`
Dec 05 06:54:53.805 INFO running `"docker" "rm" "-f" "b57095b877b7c396d80f9e18ee6a039a05baa84badbf597c9a5c4c8c507ac94e"`
Dec 05 06:54:53.919 INFO [stdout] b57095b877b7c396d80f9e18ee6a039a05baa84badbf597c9a5c4c8c507ac94e