Dec 11 10:00:52.365 INFO checking scooter-dangle/compatible-enum-serializations against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 10:00:52.366 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11 10:00:52.555 INFO [stdout] 2b7d38ed9206c95ac0f9ad60921b960f6c6a8e0b6bf01c254d61ebb3b1bb63da
Dec 11 10:00:52.558 INFO running `"docker" "start" "-a" "2b7d38ed9206c95ac0f9ad60921b960f6c6a8e0b6bf01c254d61ebb3b1bb63da"`
Dec 11 10:00:53.191 INFO [stderr] usermod: no changes
Dec 11 10:00:53.268 INFO [stderr]     Checking serde v1.0.17
Dec 11 10:00:53.272 INFO [stderr]    Compiling serde_derive v1.0.17
Dec 11 10:01:03.908 INFO [stderr]     Checking bincode v0.9.2
Dec 11 10:01:04.554 INFO [stderr]     Checking compatible-enums v0.1.0 (/source)
Dec 11 10:01:05.413 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.20s
Dec 11 10:01:05.421 INFO [stderr] su: No module specific data is present
Dec 11 10:01:06.090 INFO running `"docker" "inspect" "2b7d38ed9206c95ac0f9ad60921b960f6c6a8e0b6bf01c254d61ebb3b1bb63da"`
Dec 11 10:01:06.336 INFO running `"docker" "rm" "-f" "2b7d38ed9206c95ac0f9ad60921b960f6c6a8e0b6bf01c254d61ebb3b1bb63da"`
Dec 11 10:01:06.612 INFO [stdout] 2b7d38ed9206c95ac0f9ad60921b960f6c6a8e0b6bf01c254d61ebb3b1bb63da