Sep 19 19:01:47.414 INFO checking threadpool-1.7.1 against try#135b4cd023a753409d01e43b0f23d22a899feeeb for pr-54352
Sep 19 19:01:47.414 INFO running: cargo +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets
Sep 19 19:01:47.414 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54352/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-0/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/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 +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 19:01:47.666 INFO blam! 88f76b491df345d35c0741d7f58b4ffa158a8229a418f361456ab197eeb798a8
Sep 19 19:01:47.668 INFO running `"docker" "start" "-a" "88f76b491df345d35c0741d7f58b4ffa158a8229a418f361456ab197eeb798a8"`
Sep 19 19:01:48.603 INFO kablam! usermod: no changes
Sep 19 19:01:48.642 INFO kablam!     Checking threadpool v1.7.1 (/source)
Sep 19 19:01:49.390 INFO kablam! warning: unused arithmetic operation which must be used
Sep 19 19:01:49.390 INFO kablam!    --> src/lib.rs:815:36
Sep 19 19:01:49.390 INFO kablam!     |
Sep 19 19:01:49.390 INFO kablam! 815 |             pool.execute(move || { 1 + 1; });
Sep 19 19:01:49.390 INFO kablam!     |                                    ^^^^^
Sep 19 19:01:49.390 INFO kablam!     |
Sep 19 19:01:49.390 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 19 19:01:49.390 INFO kablam! 
Sep 19 19:01:49.437 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Sep 19 19:01:49.437 INFO kablam! su: No module specific data is present
Sep 19 19:01:50.299 INFO running `"docker" "rm" "-f" "88f76b491df345d35c0741d7f58b4ffa158a8229a418f361456ab197eeb798a8"`
Sep 19 19:01:50.416 INFO blam! 88f76b491df345d35c0741d7f58b4ffa158a8229a418f361456ab197eeb798a8