Sep 02 11:21:02.633 INFO checking hamt-rs-0.3.0 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 02 11:21:02.633 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 02 11:21:02.633 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 11:21:02.786 INFO blam! 3eb3744b558f526d778dec18f13ef26133df32f1bf53dd7dce0bd195ead4263f
Sep 02 11:21:02.788 INFO running `"docker" "start" "-a" "3eb3744b558f526d778dec18f13ef26133df32f1bf53dd7dce0bd195ead4263f"`
Sep 02 11:21:03.606 INFO kablam!     Checking hamt-rs v0.3.0 (file:///source)
Sep 02 11:21:07.410 INFO kablam! warning: unused return value of `std::clone::Clone::clone` which must be used
Sep 02 11:21:07.410 INFO kablam!    --> benches/benches.rs:165:9
Sep 02 11:21:07.410 INFO kablam!     |
Sep 02 11:21:07.410 INFO kablam! 165 |         map.clone();
Sep 02 11:21:07.410 INFO kablam!     |         ^^^^^^^^^^^^
Sep 02 11:21:07.411 INFO kablam!     |
Sep 02 11:21:07.411 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 02 11:21:07.411 INFO kablam!     = note: cloning is often expensive and is not expected to have side effects
Sep 02 11:21:07.411 INFO kablam! 
Sep 02 11:21:07.432 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.85s
Sep 02 11:21:07.436 INFO kablam! su: No module specific data is present
Sep 02 11:21:07.891 INFO running `"docker" "rm" "-f" "3eb3744b558f526d778dec18f13ef26133df32f1bf53dd7dce0bd195ead4263f"`
Sep 02 11:21:08.044 INFO blam! 3eb3744b558f526d778dec18f13ef26133df32f1bf53dd7dce0bd195ead4263f