Aug 30 14:37:14.666 INFO checking hamt-rs-0.3.0 against master#545f22340f72ee0efaf6463efb43a2840e3d35db for pr-53699
Aug 30 14:37:14.666 INFO running: cargo +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets
Aug 30 14:37:14.666 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53699/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-2/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/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 +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 14:37:14.905 INFO blam! d3ad79da360a048926df2416c03ed6c1fa4956125635e93a5aa9a958fbe45c9c
Aug 30 14:37:14.907 INFO running `"docker" "start" "-a" "d3ad79da360a048926df2416c03ed6c1fa4956125635e93a5aa9a958fbe45c9c"`
Aug 30 14:37:15.771 INFO kablam!     Checking hamt-rs v0.3.0 (file:///source)
Aug 30 14:37:20.429 INFO kablam! warning: unused return value of `std::clone::Clone::clone` which must be used
Aug 30 14:37:20.430 INFO kablam!    --> benches/benches.rs:165:9
Aug 30 14:37:20.430 INFO kablam!     |
Aug 30 14:37:20.430 INFO kablam! 165 |         map.clone();
Aug 30 14:37:20.430 INFO kablam!     |         ^^^^^^^^^^^^
Aug 30 14:37:20.430 INFO kablam!     |
Aug 30 14:37:20.430 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Aug 30 14:37:20.430 INFO kablam!     = note: cloning is often expensive and is not expected to have side effects
Aug 30 14:37:20.430 INFO kablam! 
Aug 30 14:37:20.452 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.71s
Aug 30 14:37:20.455 INFO kablam! su: No module specific data is present
Aug 30 14:37:20.976 INFO running `"docker" "rm" "-f" "d3ad79da360a048926df2416c03ed6c1fa4956125635e93a5aa9a958fbe45c9c"`
Aug 30 14:37:21.068 INFO blam! d3ad79da360a048926df2416c03ed6c1fa4956125635e93a5aa9a958fbe45c9c