Dec 04 20:07:21.721 INFO checking davidpdrsn/derive-builder against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 20:07:21.721 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 20:07:21.904 INFO [stdout] 6ff71d66025ac8dd502cd1b30b997f117150da67caade2e0ff6b61c15a3401cb
Dec 04 20:07:21.910 INFO running `"docker" "start" "-a" "6ff71d66025ac8dd502cd1b30b997f117150da67caade2e0ff6b61c15a3401cb"`
Dec 04 20:07:22.270 INFO [stderr] usermod: no changes
Dec 04 20:07:22.311 INFO [stderr]     Checking unicode-xid v0.0.4
Dec 04 20:07:22.311 INFO [stderr]     Checking quote v0.3.15
Dec 04 20:07:22.461 INFO [stderr]     Checking synom v0.11.3
Dec 04 20:07:22.908 INFO [stderr]     Checking syn v0.11.11
Dec 04 20:07:24.871 INFO [stderr]     Checking derive-builder v0.1.0 (/source)
Dec 04 20:07:25.906 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.61s
Dec 04 20:07:25.906 INFO [stderr] su: No module specific data is present
Dec 04 20:07:26.783 INFO running `"docker" "inspect" "6ff71d66025ac8dd502cd1b30b997f117150da67caade2e0ff6b61c15a3401cb"`
Dec 04 20:07:27.048 INFO running `"docker" "rm" "-f" "6ff71d66025ac8dd502cd1b30b997f117150da67caade2e0ff6b61c15a3401cb"`
Dec 04 20:07:27.395 INFO [stdout] 6ff71d66025ac8dd502cd1b30b997f117150da67caade2e0ff6b61c15a3401cb