Sep 06 09:34:21.227 INFO checking binary-tree-0.2.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 09:34:21.227 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 09:34:21.227 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-3/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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=1000" "-e" "CMD=cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 09:34:21.358 INFO blam! 90f681fefd4572a78d41484163914dfa9a95f14faf9fddb5b11a7bbbc72ba2ce
Sep 06 09:34:21.359 INFO running `"docker" "start" "-a" "90f681fefd4572a78d41484163914dfa9a95f14faf9fddb5b11a7bbbc72ba2ce"`
Sep 06 09:34:22.432 INFO kablam! usermod: no changes
Sep 06 09:34:22.465 INFO kablam!     Checking binary-tree v0.2.0 (file:///source)
Sep 06 09:34:23.369 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 06 09:34:23.369 INFO kablam!   --> benches/from_iter.rs:16:9
Sep 06 09:34:23.369 INFO kablam!    |
Sep 06 09:34:23.369 INFO kablam! 16 |         (0..TOTAL).collect::<CountTree<_>>();
Sep 06 09:34:23.369 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 09:34:23.369 INFO kablam!    |
Sep 06 09:34:23.369 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 06 09:34:23.369 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 06 09:34:23.369 INFO kablam! 
Sep 06 09:34:23.369 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 06 09:34:23.369 INFO kablam!   --> benches/from_iter.rs:23:9
Sep 06 09:34:23.369 INFO kablam!    |
Sep 06 09:34:23.369 INFO kablam! 23 |         (0..TOTAL).collect::<LinkedList<_>>();
Sep 06 09:34:23.369 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 09:34:23.370 INFO kablam!    |
Sep 06 09:34:23.370 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 06 09:34:23.370 INFO kablam! 
Sep 06 09:34:23.370 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 06 09:34:23.370 INFO kablam!   --> benches/from_iter.rs:30:9
Sep 06 09:34:23.370 INFO kablam!    |
Sep 06 09:34:23.370 INFO kablam! 30 |         (0..TOTAL).collect::<Vec<_>>();
Sep 06 09:34:23.370 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 09:34:23.370 INFO kablam!    |
Sep 06 09:34:23.370 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 06 09:34:23.370 INFO kablam! 
Sep 06 09:34:23.589 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
Sep 06 09:34:23.594 INFO kablam! su: No module specific data is present
Sep 06 09:34:24.291 INFO running `"docker" "rm" "-f" "90f681fefd4572a78d41484163914dfa9a95f14faf9fddb5b11a7bbbc72ba2ce"`
Sep 06 09:34:24.420 INFO blam! 90f681fefd4572a78d41484163914dfa9a95f14faf9fddb5b11a7bbbc72ba2ce