Sep 17 16:05:47.078 INFO checking threadpool-1.7.1 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 17 16:05:47.078 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 17 16:05:47.078 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-7/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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 +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 16:05:47.483 INFO blam! c98d7e7f643f102c25cadc451be4154819573c264a4cd36ce60f843d31367f91
Sep 17 16:05:47.487 INFO running `"docker" "start" "-a" "c98d7e7f643f102c25cadc451be4154819573c264a4cd36ce60f843d31367f91"`
Sep 17 16:05:48.948 INFO kablam! usermod: no changes
Sep 17 16:05:48.987 INFO kablam!     Checking threadpool v1.7.1 (/source)
Sep 17 16:05:49.806 INFO kablam! warning: unused arithmetic operation which must be used
Sep 17 16:05:49.806 INFO kablam!    --> src/lib.rs:815:36
Sep 17 16:05:49.806 INFO kablam!     |
Sep 17 16:05:49.806 INFO kablam! 815 |             pool.execute(move || { 1 + 1; });
Sep 17 16:05:49.806 INFO kablam!     |                                    ^^^^^
Sep 17 16:05:49.806 INFO kablam!     |
Sep 17 16:05:49.806 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 17 16:05:49.806 INFO kablam! 
Sep 17 16:05:49.848 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
Sep 17 16:05:49.851 INFO kablam! su: No module specific data is present
Sep 17 16:05:51.097 INFO running `"docker" "rm" "-f" "c98d7e7f643f102c25cadc451be4154819573c264a4cd36ce60f843d31367f91"`
Sep 17 16:05:51.352 INFO blam! c98d7e7f643f102c25cadc451be4154819573c264a4cd36ce60f843d31367f91