Sep 06 02:46:49.432 INFO checking pairlock-0.1.0 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 02:46:49.432 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 02:46:49.432 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-5/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 02:46:49.641 INFO blam! 2900e58dcdce9ffa09a57cb817f54e0a8ca4084dcc84b89824b99ff99aceab26
Sep 06 02:46:49.642 INFO running `"docker" "start" "-a" "2900e58dcdce9ffa09a57cb817f54e0a8ca4084dcc84b89824b99ff99aceab26"`
Sep 06 02:46:50.285 INFO kablam! usermod: no changes
Sep 06 02:46:50.314 INFO kablam!     Checking pairlock v0.1.0 (file:///source)
Sep 06 02:46:50.854 INFO kablam! warning: unused import: `black_box`
Sep 06 02:46:50.854 INFO kablam!  --> benches/race_detection.rs:3:21
Sep 06 02:46:50.854 INFO kablam!   |
Sep 06 02:46:50.854 INFO kablam! 3 | use test::{Bencher, black_box};
Sep 06 02:46:50.854 INFO kablam!   |                     ^^^^^^^^^
Sep 06 02:46:50.854 INFO kablam!   |
Sep 06 02:46:50.854 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 06 02:46:50.854 INFO kablam! 
Sep 06 02:46:51.042 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Sep 06 02:46:51.044 INFO kablam! su: No module specific data is present
Sep 06 02:46:51.558 INFO running `"docker" "rm" "-f" "2900e58dcdce9ffa09a57cb817f54e0a8ca4084dcc84b89824b99ff99aceab26"`
Sep 06 02:46:51.678 INFO blam! 2900e58dcdce9ffa09a57cb817f54e0a8ca4084dcc84b89824b99ff99aceab26