Sep 19 17:00:14.409 INFO checking threadpool-1.7.1 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 17:00:14.409 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 17:00:14.409 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-3/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 17:00:14.762 INFO blam! 6174a9b717c3286f1107d21fc6f35cea5e5e6bc5c42e2f7ba2570c86b1cf81c0
Sep 19 17:00:14.771 INFO running `"docker" "start" "-a" "6174a9b717c3286f1107d21fc6f35cea5e5e6bc5c42e2f7ba2570c86b1cf81c0"`
Sep 19 17:00:16.090 INFO kablam! usermod: no changes
Sep 19 17:00:16.169 INFO kablam!     Checking threadpool v1.7.1 (/source)
Sep 19 17:00:17.251 INFO kablam! warning: unused arithmetic operation which must be used
Sep 19 17:00:17.251 INFO kablam!    --> src/lib.rs:815:36
Sep 19 17:00:17.251 INFO kablam!     |
Sep 19 17:00:17.251 INFO kablam! 815 |             pool.execute(move || { 1 + 1; });
Sep 19 17:00:17.251 INFO kablam!     |                                    ^^^^^
Sep 19 17:00:17.251 INFO kablam!     |
Sep 19 17:00:17.251 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 19 17:00:17.251 INFO kablam! 
Sep 19 17:00:17.302 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
Sep 19 17:00:17.303 INFO kablam! su: No module specific data is present
Sep 19 17:00:18.101 INFO running `"docker" "rm" "-f" "6174a9b717c3286f1107d21fc6f35cea5e5e6bc5c42e2f7ba2570c86b1cf81c0"`
Sep 19 17:00:18.447 INFO blam! 6174a9b717c3286f1107d21fc6f35cea5e5e6bc5c42e2f7ba2570c86b1cf81c0