Sep 02 02:22:41.660 INFO checking binary-tree-0.2.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831 Sep 02 02:22:41.660 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets Sep 02 02:22:41.660 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-1/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"` Sep 02 02:22:41.826 INFO blam! 49dd5c388c44868236b6ac0ba40ebbc56019d6b81d41a1a96cc5803385b7527e Sep 02 02:22:41.828 INFO running `"docker" "start" "-a" "49dd5c388c44868236b6ac0ba40ebbc56019d6b81d41a1a96cc5803385b7527e"` Sep 02 02:22:42.524 INFO kablam! Checking binary-tree v0.2.0 (file:///source) Sep 02 02:22:45.445 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used Sep 02 02:22:45.445 INFO kablam! --> benches/from_iter.rs:16:9 Sep 02 02:22:45.445 INFO kablam! | Sep 02 02:22:45.445 INFO kablam! 16 | (0..TOTAL).collect::>(); Sep 02 02:22:45.446 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Sep 02 02:22:45.446 INFO kablam! | Sep 02 02:22:45.446 INFO kablam! = note: #[warn(unused_must_use)] on by default Sep 02 02:22:45.447 INFO kablam! = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead Sep 02 02:22:45.447 INFO kablam! Sep 02 02:22:45.448 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used Sep 02 02:22:45.448 INFO kablam! --> benches/from_iter.rs:23:9 Sep 02 02:22:45.448 INFO kablam! | Sep 02 02:22:45.448 INFO kablam! 23 | (0..TOTAL).collect::>(); Sep 02 02:22:45.448 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Sep 02 02:22:45.448 INFO kablam! | Sep 02 02:22:45.448 INFO kablam! = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead Sep 02 02:22:45.449 INFO kablam! Sep 02 02:22:45.449 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used Sep 02 02:22:45.449 INFO kablam! --> benches/from_iter.rs:30:9 Sep 02 02:22:45.449 INFO kablam! | Sep 02 02:22:45.449 INFO kablam! 30 | (0..TOTAL).collect::>(); Sep 02 02:22:45.449 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Sep 02 02:22:45.450 INFO kablam! | Sep 02 02:22:45.450 INFO kablam! = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead Sep 02 02:22:45.450 INFO kablam! Sep 02 02:22:45.553 INFO kablam! Finished dev [unoptimized + debuginfo] target(s) in 3.07s Sep 02 02:22:45.590 INFO kablam! su: No module specific data is present Sep 02 02:22:46.342 INFO running `"docker" "rm" "-f" "49dd5c388c44868236b6ac0ba40ebbc56019d6b81d41a1a96cc5803385b7527e"` Sep 02 02:22:46.429 INFO blam! 49dd5c388c44868236b6ac0ba40ebbc56019d6b81d41a1a96cc5803385b7527e