Jul 12 13:20:51.159 INFO checking binary-tree-0.2.0 against try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255 for pr-52234
Jul 12 13:20:51.159 INFO running: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 12 13:20:51.159 INFO creating container for: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 12 13:20:51.159 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-52234/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-0/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/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 +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Jul 12 13:20:51.430 INFO blam! ca1e06b6c4c4aec358b841ee38b4e3d3ae802104d25f8dc72d40bc5d0176604f
Jul 12 13:20:51.433 INFO running `"docker" "start" "-a" "ca1e06b6c4c4aec358b841ee38b4e3d3ae802104d25f8dc72d40bc5d0176604f"`
Jul 12 13:20:52.443 INFO kablam!     Checking binary-tree v0.2.0 (file:///source)
Jul 12 13:20:56.407 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Jul 12 13:20:56.407 INFO kablam!   --> benches/from_iter.rs:16:9
Jul 12 13:20:56.407 INFO kablam!    |
Jul 12 13:20:56.407 INFO kablam! 16 |         (0..TOTAL).collect::<CountTree<_>>();
Jul 12 13:20:56.407 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jul 12 13:20:56.407 INFO kablam!    |
Jul 12 13:20:56.407 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Jul 12 13:20:56.407 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Jul 12 13:20:56.407 INFO kablam! 
Jul 12 13:20:56.408 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Jul 12 13:20:56.408 INFO kablam!   --> benches/from_iter.rs:23:9
Jul 12 13:20:56.408 INFO kablam!    |
Jul 12 13:20:56.408 INFO kablam! 23 |         (0..TOTAL).collect::<LinkedList<_>>();
Jul 12 13:20:56.408 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jul 12 13:20:56.408 INFO kablam!    |
Jul 12 13:20:56.408 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Jul 12 13:20:56.408 INFO kablam! 
Jul 12 13:20:56.408 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Jul 12 13:20:56.408 INFO kablam!   --> benches/from_iter.rs:30:9
Jul 12 13:20:56.408 INFO kablam!    |
Jul 12 13:20:56.408 INFO kablam! 30 |         (0..TOTAL).collect::<Vec<_>>();
Jul 12 13:20:56.408 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jul 12 13:20:56.408 INFO kablam!    |
Jul 12 13:20:56.408 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Jul 12 13:20:56.408 INFO kablam! 
Jul 12 13:20:56.861 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.48s
Jul 12 13:20:56.886 INFO kablam! su: No module specific data is present
Jul 12 13:20:57.530 INFO running `"docker" "rm" "-f" "ca1e06b6c4c4aec358b841ee38b4e3d3ae802104d25f8dc72d40bc5d0176604f"`
Jul 12 13:20:57.682 INFO blam! ca1e06b6c4c4aec358b841ee38b4e3d3ae802104d25f8dc72d40bc5d0176604f