Sep 01 10:34:25.744 INFO checking array-queue-0.3.3 against try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b for pr-53578
Sep 01 10:34:25.744 INFO running: cargo +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets
Sep 01 10:34:25.744 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53578/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-2/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/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 +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 10:34:25.914 INFO blam! 9c0a89b72bd6b50d23d7b97b06092d2042a47964f39891753eedd440495b5103
Sep 01 10:34:25.916 INFO running `"docker" "start" "-a" "9c0a89b72bd6b50d23d7b97b06092d2042a47964f39891753eedd440495b5103"`
Sep 01 10:34:26.486 INFO kablam!     Checking array-queue v0.3.3 (file:///source)
Sep 01 10:34:28.255 INFO kablam! warning: unused return value of `std::clone::Clone::clone` which must be used
Sep 01 10:34:28.256 INFO kablam!    --> src/array_queue.rs:553:9
Sep 01 10:34:28.256 INFO kablam!     |
Sep 01 10:34:28.256 INFO kablam! 553 |         a.clone();
Sep 01 10:34:28.256 INFO kablam!     |         ^^^^^^^^^^
Sep 01 10:34:28.256 INFO kablam!     |
Sep 01 10:34:28.256 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 01 10:34:28.257 INFO kablam!     = note: cloning is often expensive and is not expected to have side effects
Sep 01 10:34:28.257 INFO kablam! 
Sep 01 10:34:28.280 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.81s
Sep 01 10:34:28.283 INFO kablam! su: No module specific data is present
Sep 01 10:34:28.775 INFO running `"docker" "rm" "-f" "9c0a89b72bd6b50d23d7b97b06092d2042a47964f39891753eedd440495b5103"`
Sep 01 10:34:28.881 INFO blam! 9c0a89b72bd6b50d23d7b97b06092d2042a47964f39891753eedd440495b5103