Sep 04 00:39:36.618 INFO checking threading-0.1.2 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 04 00:39:36.618 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 04 00:39:36.618 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-2/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/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 +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 00:39:36.762 INFO blam! fe24337c1ac7bb55b6f0ce338bf33ab4d75669d8fd6e03f19bd7fdd221f6f193
Sep 04 00:39:36.764 INFO running `"docker" "start" "-a" "fe24337c1ac7bb55b6f0ce338bf33ab4d75669d8fd6e03f19bd7fdd221f6f193"`
Sep 04 00:39:37.336 INFO kablam!     Checking threading v0.1.2 (file:///source)
Sep 04 00:39:37.762 INFO kablam! warning: unused arithmetic operation which must be used
Sep 04 00:39:37.762 INFO kablam!    --> src/lib.rs:165:13
Sep 04 00:39:37.762 INFO kablam!     |
Sep 04 00:39:37.762 INFO kablam! 165 |             i * i;
Sep 04 00:39:37.762 INFO kablam!     |             ^^^^^
Sep 04 00:39:37.762 INFO kablam!     |
Sep 04 00:39:37.762 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 04 00:39:37.762 INFO kablam! 
Sep 04 00:39:37.774 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
Sep 04 00:39:37.779 INFO kablam! su: No module specific data is present
Sep 04 00:39:38.193 INFO running `"docker" "rm" "-f" "fe24337c1ac7bb55b6f0ce338bf33ab4d75669d8fd6e03f19bd7fdd221f6f193"`
Sep 04 00:39:38.296 INFO blam! fe24337c1ac7bb55b6f0ce338bf33ab4d75669d8fd6e03f19bd7fdd221f6f193