Sep 04 23:15:23.221 INFO checking binary-tree-0.2.0 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 23:15:23.222 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 23:15:23.222 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-0/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 23:15:23.389 INFO blam! abe1d0f6a749eb52c37f0c38af80f5c93c10c8f8ed9b10ca212611148941c9bd
Sep 04 23:15:23.391 INFO running `"docker" "start" "-a" "abe1d0f6a749eb52c37f0c38af80f5c93c10c8f8ed9b10ca212611148941c9bd"`
Sep 04 23:15:23.986 INFO kablam!     Checking binary-tree v0.2.0 (file:///source)
Sep 04 23:15:26.876 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 04 23:15:26.876 INFO kablam!   --> benches/from_iter.rs:16:9
Sep 04 23:15:26.876 INFO kablam!    |
Sep 04 23:15:26.876 INFO kablam! 16 |         (0..TOTAL).collect::<CountTree<_>>();
Sep 04 23:15:26.876 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 04 23:15:26.876 INFO kablam!    |
Sep 04 23:15:26.876 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 04 23:15:26.876 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 04 23:15:26.876 INFO kablam! 
Sep 04 23:15:26.877 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 04 23:15:26.877 INFO kablam!   --> benches/from_iter.rs:23:9
Sep 04 23:15:26.877 INFO kablam!    |
Sep 04 23:15:26.877 INFO kablam! 23 |         (0..TOTAL).collect::<LinkedList<_>>();
Sep 04 23:15:26.877 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 04 23:15:26.877 INFO kablam!    |
Sep 04 23:15:26.877 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 04 23:15:26.877 INFO kablam! 
Sep 04 23:15:26.877 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 04 23:15:26.877 INFO kablam!   --> benches/from_iter.rs:30:9
Sep 04 23:15:26.877 INFO kablam!    |
Sep 04 23:15:26.877 INFO kablam! 30 |         (0..TOTAL).collect::<Vec<_>>();
Sep 04 23:15:26.877 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 04 23:15:26.877 INFO kablam!    |
Sep 04 23:15:26.877 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 04 23:15:26.877 INFO kablam! 
Sep 04 23:15:27.055 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.12s
Sep 04 23:15:27.065 INFO kablam! su: No module specific data is present
Sep 04 23:15:27.446 INFO running `"docker" "rm" "-f" "abe1d0f6a749eb52c37f0c38af80f5c93c10c8f8ed9b10ca212611148941c9bd"`
Sep 04 23:15:27.582 INFO blam! abe1d0f6a749eb52c37f0c38af80f5c93c10c8f8ed9b10ca212611148941c9bd