Sep 14 19:16:30.892 INFO checking binary-tree-0.2.0 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 19:16:30.892 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 19:16:30.893 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-5/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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 +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 19:16:31.287 INFO blam! 074df792a6f92e5ab4517f1a6b23bed823fb003e4b8547fdce8455021f52ee90
Sep 14 19:16:31.292 INFO running `"docker" "start" "-a" "074df792a6f92e5ab4517f1a6b23bed823fb003e4b8547fdce8455021f52ee90"`
Sep 14 19:16:32.639 INFO kablam! usermod: no changes
Sep 14 19:16:32.741 INFO kablam!     Checking binary-tree v0.2.0 (file:///source)
Sep 14 19:16:34.957 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 14 19:16:34.957 INFO kablam!   --> benches/from_iter.rs:16:9
Sep 14 19:16:34.957 INFO kablam!    |
Sep 14 19:16:34.957 INFO kablam! 16 |         (0..TOTAL).collect::<CountTree<_>>();
Sep 14 19:16:34.957 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 19:16:34.957 INFO kablam!    |
Sep 14 19:16:34.957 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 14 19:16:34.957 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 14 19:16:34.957 INFO kablam! 
Sep 14 19:16:34.957 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 14 19:16:34.957 INFO kablam!   --> benches/from_iter.rs:23:9
Sep 14 19:16:34.957 INFO kablam!    |
Sep 14 19:16:34.957 INFO kablam! 23 |         (0..TOTAL).collect::<LinkedList<_>>();
Sep 14 19:16:34.957 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 19:16:34.957 INFO kablam!    |
Sep 14 19:16:34.957 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 14 19:16:34.957 INFO kablam! 
Sep 14 19:16:34.957 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 14 19:16:34.957 INFO kablam!   --> benches/from_iter.rs:30:9
Sep 14 19:16:34.957 INFO kablam!    |
Sep 14 19:16:34.957 INFO kablam! 30 |         (0..TOTAL).collect::<Vec<_>>();
Sep 14 19:16:34.957 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 19:16:34.957 INFO kablam!    |
Sep 14 19:16:34.957 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 14 19:16:34.957 INFO kablam! 
Sep 14 19:16:35.138 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.48s
Sep 14 19:16:35.147 INFO kablam! su: No module specific data is present
Sep 14 19:16:36.064 INFO running `"docker" "rm" "-f" "074df792a6f92e5ab4517f1a6b23bed823fb003e4b8547fdce8455021f52ee90"`
Sep 14 19:16:36.160 INFO blam! 074df792a6f92e5ab4517f1a6b23bed823fb003e4b8547fdce8455021f52ee90