Sep 01 01:43:56.600 INFO checking workerpool-1.1.1 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 01:43:56.600 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 01:43:56.600 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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=500" "-e" "CMD=cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 01:43:56.835 INFO blam! d0daa2772001ff2c81c167171fd7baad7de5fe9ea76343adc5f566fe078ac54d
Sep 01 01:43:56.836 INFO running `"docker" "start" "-a" "d0daa2772001ff2c81c167171fd7baad7de5fe9ea76343adc5f566fe078ac54d"`
Sep 01 01:43:57.584 INFO kablam!     Checking workerpool v1.1.1 (file:///source)
Sep 01 01:43:58.484 INFO kablam! warning: unused arithmetic operation which must be used
Sep 01 01:43:58.484 INFO kablam!     --> src/lib.rs:1070:46
Sep 01 01:43:58.484 INFO kablam!      |
Sep 01 01:43:58.484 INFO kablam! 1070 |             pool.execute(Thunk::of(move || { 1 + 1; }));
Sep 01 01:43:58.484 INFO kablam!      |                                              ^^^^^
Sep 01 01:43:58.484 INFO kablam!      |
Sep 01 01:43:58.484 INFO kablam!      = note: #[warn(unused_must_use)] on by default
Sep 01 01:43:58.484 INFO kablam! 
Sep 01 01:43:58.509 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
Sep 01 01:43:58.511 INFO kablam! su: No module specific data is present
Sep 01 01:43:59.050 INFO running `"docker" "rm" "-f" "d0daa2772001ff2c81c167171fd7baad7de5fe9ea76343adc5f566fe078ac54d"`
Sep 01 01:43:59.138 INFO blam! d0daa2772001ff2c81c167171fd7baad7de5fe9ea76343adc5f566fe078ac54d