Nov 07 17:36:29.920 INFO checking binary-tree-0.2.0 against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 07 17:36:29.920 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-1/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +24e66c28980442a48d9458f1a4f9b76cc722dc8a-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 07 17:36:30.126 INFO blam! 6d76a66ea4fcb7903363fbd1ae1222327f873fdf0c9fd4bd45030a3f006cbea9
Nov 07 17:36:30.127 INFO running `"docker" "start" "-a" "6d76a66ea4fcb7903363fbd1ae1222327f873fdf0c9fd4bd45030a3f006cbea9"`
Nov 07 17:36:30.784 INFO kablam! usermod: no changes
Nov 07 17:36:30.852 INFO kablam!     Checking binary-tree v0.2.0 (/source)
Nov 07 17:36:34.770 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 07 17:36:34.770 INFO kablam!   --> benches/from_iter.rs:16:9
Nov 07 17:36:34.771 INFO kablam!    |
Nov 07 17:36:34.771 INFO kablam! 16 |         (0..TOTAL).collect::<CountTree<_>>();
Nov 07 17:36:34.771 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 07 17:36:34.771 INFO kablam!    |
Nov 07 17:36:34.771 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 07 17:36:34.771 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 07 17:36:34.771 INFO kablam! 
Nov 07 17:36:34.771 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 07 17:36:34.771 INFO kablam!   --> benches/from_iter.rs:23:9
Nov 07 17:36:34.771 INFO kablam!    |
Nov 07 17:36:34.771 INFO kablam! 23 |         (0..TOTAL).collect::<LinkedList<_>>();
Nov 07 17:36:34.771 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 07 17:36:34.771 INFO kablam!    |
Nov 07 17:36:34.771 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 07 17:36:34.771 INFO kablam! 
Nov 07 17:36:34.771 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 07 17:36:34.771 INFO kablam!   --> benches/from_iter.rs:30:9
Nov 07 17:36:34.771 INFO kablam!    |
Nov 07 17:36:34.771 INFO kablam! 30 |         (0..TOTAL).collect::<Vec<_>>();
Nov 07 17:36:34.771 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 07 17:36:34.771 INFO kablam!    |
Nov 07 17:36:34.771 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 07 17:36:34.771 INFO kablam! 
Nov 07 17:36:34.992 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.18s
Nov 07 17:36:35.029 INFO kablam! su: No module specific data is present
Nov 07 17:36:35.332 INFO running `"docker" "rm" "-f" "6d76a66ea4fcb7903363fbd1ae1222327f873fdf0c9fd4bd45030a3f006cbea9"`
Nov 07 17:36:35.436 INFO blam! 6d76a66ea4fcb7903363fbd1ae1222327f873fdf0c9fd4bd45030a3f006cbea9