Sep 04 08:43:44.212 INFO checking pairlock-0.1.0 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 04 08:43:44.212 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 04 08:43:44.212 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-2/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/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=500" "-e" "CMD=cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 08:43:44.370 INFO blam! b3c047e67e72ff9fb3284bfda95cd3d2b7cceff684651bdf38fe8d609baecfc7
Sep 04 08:43:44.372 INFO running `"docker" "start" "-a" "b3c047e67e72ff9fb3284bfda95cd3d2b7cceff684651bdf38fe8d609baecfc7"`
Sep 04 08:43:45.122 INFO kablam!     Checking pairlock v0.1.0 (file:///source)
Sep 04 08:43:46.835 INFO kablam! warning: unused import: `black_box`
Sep 04 08:43:46.835 INFO kablam!  --> benches/race_detection.rs:3:21
Sep 04 08:43:46.835 INFO kablam!   |
Sep 04 08:43:46.835 INFO kablam! 3 | use test::{Bencher, black_box};
Sep 04 08:43:46.835 INFO kablam!   |                     ^^^^^^^^^
Sep 04 08:43:46.835 INFO kablam!   |
Sep 04 08:43:46.835 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 04 08:43:46.835 INFO kablam! 
Sep 04 08:43:47.370 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.27s
Sep 04 08:43:47.374 INFO kablam! su: No module specific data is present
Sep 04 08:43:47.775 INFO running `"docker" "rm" "-f" "b3c047e67e72ff9fb3284bfda95cd3d2b7cceff684651bdf38fe8d609baecfc7"`
Sep 04 08:43:47.870 INFO blam! b3c047e67e72ff9fb3284bfda95cd3d2b7cceff684651bdf38fe8d609baecfc7