Sep 06 02:46:49.152 INFO checking pairlock-0.1.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 02:46:49.152 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 02:46:49.152 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-7/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 02:46:49.299 INFO blam! 1f6645887f3926512d2e04ad11d813b285216b725295020bd3d803e97904ae46
Sep 06 02:46:49.301 INFO running `"docker" "start" "-a" "1f6645887f3926512d2e04ad11d813b285216b725295020bd3d803e97904ae46"`
Sep 06 02:46:50.299 INFO kablam! usermod: no changes
Sep 06 02:46:50.327 INFO kablam!     Checking pairlock v0.1.0 (file:///source)
Sep 06 02:46:50.817 INFO kablam! warning: unused import: `black_box`
Sep 06 02:46:50.817 INFO kablam!  --> benches/race_detection.rs:3:21
Sep 06 02:46:50.817 INFO kablam!   |
Sep 06 02:46:50.817 INFO kablam! 3 | use test::{Bencher, black_box};
Sep 06 02:46:50.817 INFO kablam!   |                     ^^^^^^^^^
Sep 06 02:46:50.817 INFO kablam!   |
Sep 06 02:46:50.817 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 06 02:46:50.817 INFO kablam! 
Sep 06 02:46:51.022 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
Sep 06 02:46:51.024 INFO kablam! su: No module specific data is present
Sep 06 02:46:51.463 INFO running `"docker" "rm" "-f" "1f6645887f3926512d2e04ad11d813b285216b725295020bd3d803e97904ae46"`
Sep 06 02:46:51.520 INFO blam! 1f6645887f3926512d2e04ad11d813b285216b725295020bd3d803e97904ae46