Sep 05 21:59:04.345 INFO checking threadpool-1.7.1 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 05 21:59:04.345 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 05 21:59:04.345 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-7/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 21:59:04.518 INFO blam! a3f359b73ae207b96ca1378701236c374ddbddf01f32b7d36d348f72e46027d7
Sep 05 21:59:04.520 INFO running `"docker" "start" "-a" "a3f359b73ae207b96ca1378701236c374ddbddf01f32b7d36d348f72e46027d7"`
Sep 05 21:59:05.485 INFO kablam! usermod: no changes
Sep 05 21:59:05.562 INFO kablam!     Checking threadpool v1.7.1 (file:///source)
Sep 05 21:59:06.412 INFO kablam! warning: unused arithmetic operation which must be used
Sep 05 21:59:06.412 INFO kablam!    --> src/lib.rs:815:36
Sep 05 21:59:06.412 INFO kablam!     |
Sep 05 21:59:06.412 INFO kablam! 815 |             pool.execute(move || { 1 + 1; });
Sep 05 21:59:06.412 INFO kablam!     |                                    ^^^^^
Sep 05 21:59:06.412 INFO kablam!     |
Sep 05 21:59:06.412 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 05 21:59:06.412 INFO kablam! 
Sep 05 21:59:06.440 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
Sep 05 21:59:06.441 INFO kablam! su: No module specific data is present
Sep 05 21:59:07.419 INFO running `"docker" "rm" "-f" "a3f359b73ae207b96ca1378701236c374ddbddf01f32b7d36d348f72e46027d7"`
Sep 05 21:59:07.639 INFO blam! a3f359b73ae207b96ca1378701236c374ddbddf01f32b7d36d348f72e46027d7