Sep 21 01:51:53.990 INFO checking threading-0.1.2 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 01:51:53.990 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 01:51:53.990 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-4/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 01:51:54.247 INFO blam! d27da7ef42b39f1fff70cd9df4293894430e664873395f252b5cbf601b5fe8d1
Sep 21 01:51:54.250 INFO running `"docker" "start" "-a" "d27da7ef42b39f1fff70cd9df4293894430e664873395f252b5cbf601b5fe8d1"`
Sep 21 01:51:55.068 INFO kablam! usermod: no changes
Sep 21 01:51:55.097 INFO kablam!     Checking threading v0.1.2 (/source)
Sep 21 01:51:55.330 INFO kablam! warning: unused arithmetic operation which must be used
Sep 21 01:51:55.330 INFO kablam!    --> src/lib.rs:165:13
Sep 21 01:51:55.330 INFO kablam!     |
Sep 21 01:51:55.330 INFO kablam! 165 |             i * i;
Sep 21 01:51:55.330 INFO kablam!     |             ^^^^^
Sep 21 01:51:55.330 INFO kablam!     |
Sep 21 01:51:55.330 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 21 01:51:55.330 INFO kablam! 
Sep 21 01:51:55.340 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
Sep 21 01:51:55.343 INFO kablam! su: No module specific data is present
Sep 21 01:51:55.828 INFO running `"docker" "rm" "-f" "d27da7ef42b39f1fff70cd9df4293894430e664873395f252b5cbf601b5fe8d1"`
Sep 21 01:51:55.906 INFO blam! d27da7ef42b39f1fff70cd9df4293894430e664873395f252b5cbf601b5fe8d1