Nov 04 20:04:49.322 INFO checking pairlock-0.1.0 against try#e740b9aa0b624fa39feb39613e76d15bdf57e594 for pr-55655
Nov 04 20:04:49.322 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-4/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55655/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/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 +e740b9aa0b624fa39feb39613e76d15bdf57e594-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"`
Nov 04 20:04:49.528 INFO blam! b4ad540a7d603ffe479038ea2462f05de57672c9807b952a94aec035924785ad
Nov 04 20:04:49.530 INFO running `"docker" "start" "-a" "b4ad540a7d603ffe479038ea2462f05de57672c9807b952a94aec035924785ad"`
Nov 04 20:04:50.011 INFO kablam! usermod: no changes
Nov 04 20:04:50.038 INFO kablam!     Checking pairlock v0.1.0 (/source)
Nov 04 20:04:51.383 INFO kablam! warning: unused import: `black_box`
Nov 04 20:04:51.383 INFO kablam!  --> benches/race_detection.rs:3:21
Nov 04 20:04:51.383 INFO kablam!   |
Nov 04 20:04:51.383 INFO kablam! 3 | use test::{Bencher, black_box};
Nov 04 20:04:51.383 INFO kablam!   |                     ^^^^^^^^^
Nov 04 20:04:51.383 INFO kablam!   |
Nov 04 20:04:51.383 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 04 20:04:51.383 INFO kablam! 
Nov 04 20:04:51.769 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
Nov 04 20:04:51.774 INFO kablam! su: No module specific data is present
Nov 04 20:04:52.405 INFO running `"docker" "rm" "-f" "b4ad540a7d603ffe479038ea2462f05de57672c9807b952a94aec035924785ad"`
Nov 04 20:04:52.691 INFO blam! b4ad540a7d603ffe479038ea2462f05de57672c9807b952a94aec035924785ad