Sep 18 03:19:11.536 INFO checking binary-tree-0.2.0 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 18 03:19:11.537 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 18 03:19:11.537 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-7/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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 +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 18 03:19:12.022 INFO blam! e96dc23f5d460998d62f0411646a9bfd9567724dd7af70dd899d74474671c170
Sep 18 03:19:12.025 INFO running `"docker" "start" "-a" "e96dc23f5d460998d62f0411646a9bfd9567724dd7af70dd899d74474671c170"`
Sep 18 03:19:13.011 INFO kablam! usermod: no changes
Sep 18 03:19:13.106 INFO kablam!     Checking binary-tree v0.2.0 (/source)
Sep 18 03:19:14.462 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 18 03:19:14.462 INFO kablam!   --> benches/from_iter.rs:16:9
Sep 18 03:19:14.462 INFO kablam!    |
Sep 18 03:19:14.462 INFO kablam! 16 |         (0..TOTAL).collect::<CountTree<_>>();
Sep 18 03:19:14.462 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 18 03:19:14.462 INFO kablam!    |
Sep 18 03:19:14.462 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 18 03:19:14.462 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 18 03:19:14.463 INFO kablam! 
Sep 18 03:19:14.463 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 18 03:19:14.463 INFO kablam!   --> benches/from_iter.rs:23:9
Sep 18 03:19:14.463 INFO kablam!    |
Sep 18 03:19:14.463 INFO kablam! 23 |         (0..TOTAL).collect::<LinkedList<_>>();
Sep 18 03:19:14.463 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 18 03:19:14.463 INFO kablam!    |
Sep 18 03:19:14.463 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 18 03:19:14.463 INFO kablam! 
Sep 18 03:19:14.463 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 18 03:19:14.463 INFO kablam!   --> benches/from_iter.rs:30:9
Sep 18 03:19:14.463 INFO kablam!    |
Sep 18 03:19:14.463 INFO kablam! 30 |         (0..TOTAL).collect::<Vec<_>>();
Sep 18 03:19:14.463 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 18 03:19:14.463 INFO kablam!    |
Sep 18 03:19:14.463 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 18 03:19:14.464 INFO kablam! 
Sep 18 03:19:14.558 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
Sep 18 03:19:14.563 INFO kablam! su: No module specific data is present
Sep 18 03:19:15.166 INFO running `"docker" "rm" "-f" "e96dc23f5d460998d62f0411646a9bfd9567724dd7af70dd899d74474671c170"`
Sep 18 03:19:15.278 INFO blam! e96dc23f5d460998d62f0411646a9bfd9567724dd7af70dd899d74474671c170