Sep 05 21:59:03.295 INFO checking threadpool-1.7.1 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 05 21:59:03.295 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 05 21:59:03.295 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 05 21:59:03.637 INFO blam! d79d1c47f54810b8d056a42453ca16eb04fed464ad443d54c98009f400bf4247
Sep 05 21:59:03.646 INFO running `"docker" "start" "-a" "d79d1c47f54810b8d056a42453ca16eb04fed464ad443d54c98009f400bf4247"`
Sep 05 21:59:04.565 INFO kablam! usermod: no changes
Sep 05 21:59:04.587 INFO kablam!     Checking threadpool v1.7.1 (file:///source)
Sep 05 21:59:05.132 INFO kablam! warning: unused arithmetic operation which must be used
Sep 05 21:59:05.132 INFO kablam!    --> src/lib.rs:815:36
Sep 05 21:59:05.132 INFO kablam!     |
Sep 05 21:59:05.132 INFO kablam! 815 |             pool.execute(move || { 1 + 1; });
Sep 05 21:59:05.132 INFO kablam!     |                                    ^^^^^
Sep 05 21:59:05.132 INFO kablam!     |
Sep 05 21:59:05.132 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 05 21:59:05.132 INFO kablam! 
Sep 05 21:59:05.158 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
Sep 05 21:59:05.160 INFO kablam! su: No module specific data is present
Sep 05 21:59:05.819 INFO running `"docker" "rm" "-f" "d79d1c47f54810b8d056a42453ca16eb04fed464ad443d54c98009f400bf4247"`
Sep 05 21:59:06.063 INFO blam! d79d1c47f54810b8d056a42453ca16eb04fed464ad443d54c98009f400bf4247