Sep 06 08:21:29.062 INFO checking crossbeam-utils-0.5.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 08:21:29.062 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 08:21:29.062 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-6/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 08:21:29.204 INFO blam! bb23c400875eb6712db475d95ac263c53c378c877523b8ff214fd5032f248784
Sep 06 08:21:29.209 INFO running `"docker" "start" "-a" "bb23c400875eb6712db475d95ac263c53c378c877523b8ff214fd5032f248784"`
Sep 06 08:21:30.024 INFO kablam! usermod: no changes
Sep 06 08:21:30.061 INFO kablam!     Checking crossbeam-utils v0.5.0 (file:///source)
Sep 06 08:21:30.607 INFO kablam! warning: unused return value of `std::clone::Clone::clone` which must be used
Sep 06 08:21:30.607 INFO kablam!    --> src/cache_padded.rs:168:9
Sep 06 08:21:30.607 INFO kablam!     |
Sep 06 08:21:30.607 INFO kablam! 168 |         a.clone();
Sep 06 08:21:30.607 INFO kablam!     |         ^^^^^^^^^^
Sep 06 08:21:30.607 INFO kablam!     |
Sep 06 08:21:30.607 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 06 08:21:30.607 INFO kablam!     = note: cloning is often expensive and is not expected to have side effects
Sep 06 08:21:30.607 INFO kablam! 
Sep 06 08:21:30.622 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
Sep 06 08:21:30.624 INFO kablam! su: No module specific data is present
Sep 06 08:21:31.453 INFO running `"docker" "rm" "-f" "bb23c400875eb6712db475d95ac263c53c378c877523b8ff214fd5032f248784"`
Sep 06 08:21:31.539 INFO blam! bb23c400875eb6712db475d95ac263c53c378c877523b8ff214fd5032f248784