Sep 19 21:15:03.691 INFO checking pairlock-0.1.0 against try#fcacde07b66fe513e52c41b73aef91bcc121905b for pr-54346
Sep 19 21:15:03.691 INFO running: cargo +fcacde07b66fe513e52c41b73aef91bcc121905b-alt check --frozen --all --all-targets
Sep 19 21:15:03.691 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54346/try#fcacde07b66fe513e52c41b73aef91bcc121905b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-3/try#fcacde07b66fe513e52c41b73aef91bcc121905b:/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 +fcacde07b66fe513e52c41b73aef91bcc121905b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 21:15:03.866 INFO blam! effbed83a5983ab336a6c25cc3e0c917fd570b7f226d14e1904988b2761a69eb
Sep 19 21:15:03.869 INFO running `"docker" "start" "-a" "effbed83a5983ab336a6c25cc3e0c917fd570b7f226d14e1904988b2761a69eb"`
Sep 19 21:15:04.952 INFO kablam! usermod: no changes
Sep 19 21:15:04.999 INFO kablam!     Checking pairlock v0.1.0 (/source)
Sep 19 21:15:05.753 INFO kablam! warning: unused import: `black_box`
Sep 19 21:15:05.753 INFO kablam!  --> benches/race_detection.rs:3:21
Sep 19 21:15:05.753 INFO kablam!   |
Sep 19 21:15:05.753 INFO kablam! 3 | use test::{Bencher, black_box};
Sep 19 21:15:05.753 INFO kablam!   |                     ^^^^^^^^^
Sep 19 21:15:05.753 INFO kablam!   |
Sep 19 21:15:05.753 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 19 21:15:05.753 INFO kablam! 
Sep 19 21:15:06.109 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
Sep 19 21:15:06.112 INFO kablam! su: No module specific data is present
Sep 19 21:15:07.113 INFO running `"docker" "rm" "-f" "effbed83a5983ab336a6c25cc3e0c917fd570b7f226d14e1904988b2761a69eb"`
Sep 19 21:15:07.212 INFO blam! effbed83a5983ab336a6c25cc3e0c917fd570b7f226d14e1904988b2761a69eb