Oct 13 18:00:51.871 INFO checking array-queue-0.3.3 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 18:00:51.872 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-5/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +4021bd0b3c5815b087d6db10ce461e7e4854ade7-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 13 18:00:52.243 INFO blam! 9d3bcf99132995943060a2572296e543f4b62a3515903362b98ee37fb6958ff2
Oct 13 18:00:52.246 INFO running `"docker" "start" "-a" "9d3bcf99132995943060a2572296e543f4b62a3515903362b98ee37fb6958ff2"`
Oct 13 18:00:53.436 INFO kablam! usermod: no changes
Oct 13 18:00:53.466 INFO kablam!     Checking array-queue v0.3.3 (/source)
Oct 13 18:00:54.891 INFO kablam! warning: unused return value of `std::clone::Clone::clone` which must be used
Oct 13 18:00:54.892 INFO kablam!    --> src/array_queue.rs:553:9
Oct 13 18:00:54.892 INFO kablam!     |
Oct 13 18:00:54.892 INFO kablam! 553 |         a.clone();
Oct 13 18:00:54.893 INFO kablam!     |         ^^^^^^^^^^
Oct 13 18:00:54.893 INFO kablam!     |
Oct 13 18:00:54.893 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 13 18:00:54.894 INFO kablam!     = note: cloning is often expensive and is not expected to have side effects
Oct 13 18:00:54.894 INFO kablam! 
Oct 13 18:00:54.936 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
Oct 13 18:00:54.937 INFO kablam! su: No module specific data is present
Oct 13 18:00:55.357 INFO running `"docker" "rm" "-f" "9d3bcf99132995943060a2572296e543f4b62a3515903362b98ee37fb6958ff2"`
Oct 13 18:00:55.444 INFO blam! 9d3bcf99132995943060a2572296e543f4b62a3515903362b98ee37fb6958ff2