Sep 02 20:41:04.825 INFO checking array-queue-0.3.3 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 02 20:41:04.825 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 02 20:41:04.825 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-1/try#952c7dbfa2628309f557b367929ffc17af20b332:/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 +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 20:41:05.045 INFO blam! b806331e7f0c00ef5cacc4d90d738fb95d319a90d14427a56f98f916a6cd8b68
Sep 02 20:41:05.048 INFO running `"docker" "start" "-a" "b806331e7f0c00ef5cacc4d90d738fb95d319a90d14427a56f98f916a6cd8b68"`
Sep 02 20:41:05.780 INFO kablam!     Checking array-queue v0.3.3 (file:///source)
Sep 02 20:41:07.458 INFO kablam! warning: unused return value of `std::clone::Clone::clone` which must be used
Sep 02 20:41:07.458 INFO kablam!    --> src/array_queue.rs:553:9
Sep 02 20:41:07.458 INFO kablam!     |
Sep 02 20:41:07.458 INFO kablam! 553 |         a.clone();
Sep 02 20:41:07.458 INFO kablam!     |         ^^^^^^^^^^
Sep 02 20:41:07.458 INFO kablam!     |
Sep 02 20:41:07.458 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 02 20:41:07.458 INFO kablam!     = note: cloning is often expensive and is not expected to have side effects
Sep 02 20:41:07.458 INFO kablam! 
Sep 02 20:41:07.480 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
Sep 02 20:41:07.483 INFO kablam! su: No module specific data is present
Sep 02 20:41:07.834 INFO running `"docker" "rm" "-f" "b806331e7f0c00ef5cacc4d90d738fb95d319a90d14427a56f98f916a6cd8b68"`
Sep 02 20:41:07.958 INFO blam! b806331e7f0c00ef5cacc4d90d738fb95d319a90d14427a56f98f916a6cd8b68