Sep 04 23:24:27.577 INFO checking crossbeam-utils-0.2.2 against try#5fe695a3844714c70e8f7731a553f7947987a68a for pr-53913
Sep 04 23:24:27.577 INFO running: cargo +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets
Sep 04 23:24:27.577 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53913/try#5fe695a3844714c70e8f7731a553f7947987a68a:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-3/try#5fe695a3844714c70e8f7731a553f7947987a68a:/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 +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 23:24:27.794 INFO blam! aad380505fb365d5f4e3406e15fd32b9eb86d769e118da69caaef79b85b213a4
Sep 04 23:24:27.795 INFO running `"docker" "start" "-a" "aad380505fb365d5f4e3406e15fd32b9eb86d769e118da69caaef79b85b213a4"`
Sep 04 23:24:28.437 INFO kablam!     Checking crossbeam-utils v0.2.2 (file:///source)
Sep 04 23:24:29.543 INFO kablam! warning: unused return value of `std::clone::Clone::clone` which must be used
Sep 04 23:24:29.543 INFO kablam!    --> src/cache_padded.rs:286:9
Sep 04 23:24:29.543 INFO kablam!     |
Sep 04 23:24:29.543 INFO kablam! 286 |         a.clone();
Sep 04 23:24:29.543 INFO kablam!     |         ^^^^^^^^^^
Sep 04 23:24:29.543 INFO kablam!     |
Sep 04 23:24:29.543 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 04 23:24:29.543 INFO kablam!     = note: cloning is often expensive and is not expected to have side effects
Sep 04 23:24:29.543 INFO kablam! 
Sep 04 23:24:29.559 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
Sep 04 23:24:29.561 INFO kablam! su: No module specific data is present
Sep 04 23:24:30.155 INFO running `"docker" "rm" "-f" "aad380505fb365d5f4e3406e15fd32b9eb86d769e118da69caaef79b85b213a4"`
Sep 04 23:24:30.242 INFO blam! aad380505fb365d5f4e3406e15fd32b9eb86d769e118da69caaef79b85b213a4