Sep 20 06:10:01.454 INFO checking binary-tree-0.2.0 against try#135b4cd023a753409d01e43b0f23d22a899feeeb for pr-54352
Sep 20 06:10:01.454 INFO running: cargo +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets
Sep 20 06:10:01.454 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54352/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-4/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/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 +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 06:10:01.620 INFO blam! d92ec6a84b30d8b29a8f71d79165b67c69395b5090c76547030824d1513f0d59
Sep 20 06:10:01.622 INFO running `"docker" "start" "-a" "d92ec6a84b30d8b29a8f71d79165b67c69395b5090c76547030824d1513f0d59"`
Sep 20 06:10:02.607 INFO kablam! usermod: no changes
Sep 20 06:10:02.717 INFO kablam!     Checking binary-tree v0.2.0 (/source)
Sep 20 06:10:04.517 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 20 06:10:04.517 INFO kablam!   --> benches/from_iter.rs:16:9
Sep 20 06:10:04.517 INFO kablam!    |
Sep 20 06:10:04.517 INFO kablam! 16 |         (0..TOTAL).collect::<CountTree<_>>();
Sep 20 06:10:04.517 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 06:10:04.517 INFO kablam!    |
Sep 20 06:10:04.517 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 20 06:10:04.517 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 20 06:10:04.517 INFO kablam! 
Sep 20 06:10:04.518 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 20 06:10:04.518 INFO kablam!   --> benches/from_iter.rs:23:9
Sep 20 06:10:04.518 INFO kablam!    |
Sep 20 06:10:04.518 INFO kablam! 23 |         (0..TOTAL).collect::<LinkedList<_>>();
Sep 20 06:10:04.518 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 06:10:04.518 INFO kablam!    |
Sep 20 06:10:04.518 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 20 06:10:04.518 INFO kablam! 
Sep 20 06:10:04.518 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 20 06:10:04.518 INFO kablam!   --> benches/from_iter.rs:30:9
Sep 20 06:10:04.518 INFO kablam!    |
Sep 20 06:10:04.518 INFO kablam! 30 |         (0..TOTAL).collect::<Vec<_>>();
Sep 20 06:10:04.518 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 06:10:04.518 INFO kablam!    |
Sep 20 06:10:04.518 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 20 06:10:04.518 INFO kablam! 
Sep 20 06:10:04.532 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.90s
Sep 20 06:10:04.537 INFO kablam! su: No module specific data is present
Sep 20 06:10:05.009 INFO running `"docker" "rm" "-f" "d92ec6a84b30d8b29a8f71d79165b67c69395b5090c76547030824d1513f0d59"`
Sep 20 06:10:05.090 INFO blam! d92ec6a84b30d8b29a8f71d79165b67c69395b5090c76547030824d1513f0d59