Sep 10 13:20:47.858 INFO checking pairlock-0.1.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 13:20:47.858 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 13:20:47.858 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-6/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 13:20:48.053 INFO blam! 711e13bd475e5da9e78117826bd7479540e24a25538c7de40d3e66a5fe9ca93c
Sep 10 13:20:48.055 INFO running `"docker" "start" "-a" "711e13bd475e5da9e78117826bd7479540e24a25538c7de40d3e66a5fe9ca93c"`
Sep 10 13:20:48.785 INFO kablam! usermod: no changes
Sep 10 13:20:48.818 INFO kablam!     Checking pairlock v0.1.0 (file:///source)
Sep 10 13:20:49.413 INFO kablam! warning: unused import: `black_box`
Sep 10 13:20:49.413 INFO kablam!  --> benches/race_detection.rs:3:21
Sep 10 13:20:49.413 INFO kablam!   |
Sep 10 13:20:49.413 INFO kablam! 3 | use test::{Bencher, black_box};
Sep 10 13:20:49.413 INFO kablam!   |                     ^^^^^^^^^
Sep 10 13:20:49.413 INFO kablam!   |
Sep 10 13:20:49.413 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 10 13:20:49.413 INFO kablam! 
Sep 10 13:20:49.740 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
Sep 10 13:20:49.743 INFO kablam! su: No module specific data is present
Sep 10 13:20:50.240 INFO running `"docker" "rm" "-f" "711e13bd475e5da9e78117826bd7479540e24a25538c7de40d3e66a5fe9ca93c"`
Sep 10 13:20:50.341 INFO blam! 711e13bd475e5da9e78117826bd7479540e24a25538c7de40d3e66a5fe9ca93c