Sep 02 03:09:50.943 INFO checking array-queue-0.3.3 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 02 03:09:50.943 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 02 03:09:50.943 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-0/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 03:09:51.105 INFO blam! 7e7f7a880529331cd7fa19ac51218e0fb4d4dc454f4cbde451c59b9b4d64134a
Sep 02 03:09:51.107 INFO running `"docker" "start" "-a" "7e7f7a880529331cd7fa19ac51218e0fb4d4dc454f4cbde451c59b9b4d64134a"`
Sep 02 03:09:51.763 INFO kablam!     Checking array-queue v0.3.3 (file:///source)
Sep 02 03:09:53.407 INFO kablam! warning: unused return value of `std::clone::Clone::clone` which must be used
Sep 02 03:09:53.407 INFO kablam!    --> src/array_queue.rs:553:9
Sep 02 03:09:53.407 INFO kablam!     |
Sep 02 03:09:53.407 INFO kablam! 553 |         a.clone();
Sep 02 03:09:53.407 INFO kablam!     |         ^^^^^^^^^^
Sep 02 03:09:53.407 INFO kablam!     |
Sep 02 03:09:53.407 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 02 03:09:53.407 INFO kablam!     = note: cloning is often expensive and is not expected to have side effects
Sep 02 03:09:53.407 INFO kablam! 
Sep 02 03:09:53.431 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
Sep 02 03:09:53.433 INFO kablam! su: No module specific data is present
Sep 02 03:09:54.061 INFO running `"docker" "rm" "-f" "7e7f7a880529331cd7fa19ac51218e0fb4d4dc454f4cbde451c59b9b4d64134a"`
Sep 02 03:09:54.164 INFO blam! 7e7f7a880529331cd7fa19ac51218e0fb4d4dc454f4cbde451c59b9b4d64134a