Sep 21 01:51:53.605 INFO checking threadpool-1.7.1 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 01:51:53.605 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 01:51:53.605 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-6/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 01:51:53.772 INFO blam! 1e85050d3140d6ac15ba291a1c510697376a30555b2b716ca46f0d2c23a55e38
Sep 21 01:51:53.774 INFO running `"docker" "start" "-a" "1e85050d3140d6ac15ba291a1c510697376a30555b2b716ca46f0d2c23a55e38"`
Sep 21 01:51:54.535 INFO kablam! usermod: no changes
Sep 21 01:51:54.558 INFO kablam!     Checking threadpool v1.7.1 (/source)
Sep 21 01:51:54.983 INFO kablam! warning: unused arithmetic operation which must be used
Sep 21 01:51:54.983 INFO kablam!    --> src/lib.rs:815:36
Sep 21 01:51:54.983 INFO kablam!     |
Sep 21 01:51:54.983 INFO kablam! 815 |             pool.execute(move || { 1 + 1; });
Sep 21 01:51:54.983 INFO kablam!     |                                    ^^^^^
Sep 21 01:51:54.983 INFO kablam!     |
Sep 21 01:51:54.983 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 21 01:51:54.983 INFO kablam! 
Sep 21 01:51:55.007 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
Sep 21 01:51:55.009 INFO kablam! su: No module specific data is present
Sep 21 01:51:55.571 INFO running `"docker" "rm" "-f" "1e85050d3140d6ac15ba291a1c510697376a30555b2b716ca46f0d2c23a55e38"`
Sep 21 01:51:55.644 INFO blam! 1e85050d3140d6ac15ba291a1c510697376a30555b2b716ca46f0d2c23a55e38