Sep 21 01:51:52.398 INFO checking threadpool-1.7.1 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 01:51:52.398 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 01:51:52.398 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-3/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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 +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 01:51:52.620 INFO blam! 388a2b3eefd194fbb2ed99f3ed24eb626d3c7595245a66adfa8802d372ed5167
Sep 21 01:51:52.621 INFO running `"docker" "start" "-a" "388a2b3eefd194fbb2ed99f3ed24eb626d3c7595245a66adfa8802d372ed5167"`
Sep 21 01:51:53.865 INFO kablam! usermod: no changes
Sep 21 01:51:53.916 INFO kablam!     Checking threadpool v1.7.1 (/source)
Sep 21 01:51:54.586 INFO kablam! warning: unused arithmetic operation which must be used
Sep 21 01:51:54.586 INFO kablam!    --> src/lib.rs:815:36
Sep 21 01:51:54.586 INFO kablam!     |
Sep 21 01:51:54.586 INFO kablam! 815 |             pool.execute(move || { 1 + 1; });
Sep 21 01:51:54.586 INFO kablam!     |                                    ^^^^^
Sep 21 01:51:54.586 INFO kablam!     |
Sep 21 01:51:54.586 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 21 01:51:54.586 INFO kablam! 
Sep 21 01:51:54.618 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
Sep 21 01:51:54.620 INFO kablam! su: No module specific data is present
Sep 21 01:51:55.197 INFO running `"docker" "rm" "-f" "388a2b3eefd194fbb2ed99f3ed24eb626d3c7595245a66adfa8802d372ed5167"`
Sep 21 01:51:55.300 INFO blam! 388a2b3eefd194fbb2ed99f3ed24eb626d3c7595245a66adfa8802d372ed5167