Sep 02 17:13:41.930 INFO checking crossbeam-utils-0.2.2 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851 Sep 02 17:13:41.930 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets Sep 02 17:13:41.930 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-1/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 02 17:13:42.166 INFO blam! 6232d66cd3096bc8639a76c0e433f32404a1663d8c578b5547de3af4c25fe9c2 Sep 02 17:13:42.168 INFO running `"docker" "start" "-a" "6232d66cd3096bc8639a76c0e433f32404a1663d8c578b5547de3af4c25fe9c2"` Sep 02 17:13:43.121 INFO kablam! Checking crossbeam-utils v0.2.2 (file:///source) Sep 02 17:13:44.613 INFO kablam! warning: unused return value of `std::clone::Clone::clone` which must be used Sep 02 17:13:44.613 INFO kablam! --> src/cache_padded.rs:286:9 Sep 02 17:13:44.613 INFO kablam! | Sep 02 17:13:44.613 INFO kablam! 286 | a.clone(); Sep 02 17:13:44.613 INFO kablam! | ^^^^^^^^^^ Sep 02 17:13:44.614 INFO kablam! | Sep 02 17:13:44.614 INFO kablam! = note: #[warn(unused_must_use)] on by default Sep 02 17:13:44.614 INFO kablam! = note: cloning is often expensive and is not expected to have side effects Sep 02 17:13:44.614 INFO kablam! Sep 02 17:13:44.655 INFO kablam! Finished dev [unoptimized + debuginfo] target(s) in 1.55s Sep 02 17:13:44.658 INFO kablam! su: No module specific data is present Sep 02 17:13:45.180 INFO running `"docker" "rm" "-f" "6232d66cd3096bc8639a76c0e433f32404a1663d8c578b5547de3af4c25fe9c2"` Sep 02 17:13:45.333 INFO blam! 6232d66cd3096bc8639a76c0e433f32404a1663d8c578b5547de3af4c25fe9c2