Sep 14 07:45:08.569 INFO checking threadpool-1.7.1 against master#90d36fb5905bbe5004f5b465ea14b53d10dae260 for pr-53578-1
Sep 14 07:45:08.569 INFO running: cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets
Sep 14 07:45:08.569 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53578-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-2/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/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 +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 07:45:08.751 INFO blam! e018405b6b776c618216f44bd30044a9001ffe946f7f3e41d16fef06eeb6e3ad
Sep 14 07:45:08.751 INFO running `"docker" "start" "-a" "e018405b6b776c618216f44bd30044a9001ffe946f7f3e41d16fef06eeb6e3ad"`
Sep 14 07:45:09.566 INFO kablam! usermod: no changes
Sep 14 07:45:09.627 INFO kablam!     Checking threadpool v1.7.1 (file:///source)
Sep 14 07:45:10.293 INFO kablam! warning: unused arithmetic operation which must be used
Sep 14 07:45:10.293 INFO kablam!    --> src/lib.rs:815:36
Sep 14 07:45:10.293 INFO kablam!     |
Sep 14 07:45:10.293 INFO kablam! 815 |             pool.execute(move || { 1 + 1; });
Sep 14 07:45:10.293 INFO kablam!     |                                    ^^^^^
Sep 14 07:45:10.293 INFO kablam!     |
Sep 14 07:45:10.293 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 14 07:45:10.293 INFO kablam! 
Sep 14 07:45:10.314 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
Sep 14 07:45:10.316 INFO kablam! su: No module specific data is present
Sep 14 07:45:11.119 INFO running `"docker" "rm" "-f" "e018405b6b776c618216f44bd30044a9001ffe946f7f3e41d16fef06eeb6e3ad"`
Sep 14 07:45:11.207 INFO blam! e018405b6b776c618216f44bd30044a9001ffe946f7f3e41d16fef06eeb6e3ad