Sep 05 21:59:06.103 INFO checking threading-0.1.2 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 05 21:59:06.103 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 05 21:59:06.103 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-6/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 21:59:06.516 INFO blam! 2d26e3a564eecdae2c8078cb950839efcdbb1407ec283b4f9ba7747ed14f3c13
Sep 05 21:59:06.525 INFO running `"docker" "start" "-a" "2d26e3a564eecdae2c8078cb950839efcdbb1407ec283b4f9ba7747ed14f3c13"`
Sep 05 21:59:07.830 INFO kablam! usermod: no changes
Sep 05 21:59:07.876 INFO kablam!     Checking threading v0.1.2 (file:///source)
Sep 05 21:59:08.172 INFO kablam! warning: unused arithmetic operation which must be used
Sep 05 21:59:08.172 INFO kablam!    --> src/lib.rs:165:13
Sep 05 21:59:08.172 INFO kablam!     |
Sep 05 21:59:08.172 INFO kablam! 165 |             i * i;
Sep 05 21:59:08.172 INFO kablam!     |             ^^^^^
Sep 05 21:59:08.172 INFO kablam!     |
Sep 05 21:59:08.172 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 05 21:59:08.172 INFO kablam! 
Sep 05 21:59:08.210 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
Sep 05 21:59:08.221 INFO kablam! su: No module specific data is present
Sep 05 21:59:09.124 INFO running `"docker" "rm" "-f" "2d26e3a564eecdae2c8078cb950839efcdbb1407ec283b4f9ba7747ed14f3c13"`
Sep 05 21:59:09.270 INFO blam! 2d26e3a564eecdae2c8078cb950839efcdbb1407ec283b4f9ba7747ed14f3c13