Oct 22 01:02:50.541 INFO checking pairlock-0.1.0 against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 22 01:02:50.541 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-4/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +155510e377ae2a8d8ee0dad1a5f809c9062a5526-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 22 01:02:50.820 INFO blam! 4504e91d699e5d4491d9372012a545c2717a057c83a171621b63c273674a0cc1
Oct 22 01:02:50.825 INFO running `"docker" "start" "-a" "4504e91d699e5d4491d9372012a545c2717a057c83a171621b63c273674a0cc1"`
Oct 22 01:02:51.582 INFO kablam! usermod: no changes
Oct 22 01:02:51.636 INFO kablam!     Checking pairlock v0.1.0 (/source)
Oct 22 01:02:53.223 INFO kablam! warning: unused import: `black_box`
Oct 22 01:02:53.223 INFO kablam!  --> benches/race_detection.rs:3:21
Oct 22 01:02:53.223 INFO kablam!   |
Oct 22 01:02:53.223 INFO kablam! 3 | use test::{Bencher, black_box};
Oct 22 01:02:53.223 INFO kablam!   |                     ^^^^^^^^^
Oct 22 01:02:53.223 INFO kablam!   |
Oct 22 01:02:53.223 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 22 01:02:53.223 INFO kablam! 
Oct 22 01:02:53.704 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
Oct 22 01:02:53.707 INFO kablam! su: No module specific data is present
Oct 22 01:02:54.142 INFO running `"docker" "rm" "-f" "4504e91d699e5d4491d9372012a545c2717a057c83a171621b63c273674a0cc1"`
Oct 22 01:02:54.372 INFO blam! 4504e91d699e5d4491d9372012a545c2717a057c83a171621b63c273674a0cc1