Oct 13 17:43:23.159 INFO checking binary-tree-0.2.0 against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 17:43:23.161 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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"`
Oct 13 17:43:23.925 INFO blam! 8d223d4f0c46c4c0e4c22beb2db3bd6ceed9dc369597f5aa66e26a163259ebef
Oct 13 17:43:23.932 INFO running `"docker" "start" "-a" "8d223d4f0c46c4c0e4c22beb2db3bd6ceed9dc369597f5aa66e26a163259ebef"`
Oct 13 17:43:24.790 INFO kablam! usermod: no changes
Oct 13 17:43:24.896 INFO kablam!     Checking binary-tree v0.2.0 (/source)
Oct 13 17:43:28.515 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Oct 13 17:43:28.515 INFO kablam!   --> benches/from_iter.rs:16:9
Oct 13 17:43:28.515 INFO kablam!    |
Oct 13 17:43:28.515 INFO kablam! 16 |         (0..TOTAL).collect::<CountTree<_>>();
Oct 13 17:43:28.515 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 17:43:28.515 INFO kablam!    |
Oct 13 17:43:28.517 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 13 17:43:28.517 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Oct 13 17:43:28.517 INFO kablam! 
Oct 13 17:43:28.517 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Oct 13 17:43:28.517 INFO kablam!   --> benches/from_iter.rs:23:9
Oct 13 17:43:28.517 INFO kablam!    |
Oct 13 17:43:28.517 INFO kablam! 23 |         (0..TOTAL).collect::<LinkedList<_>>();
Oct 13 17:43:28.517 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 17:43:28.517 INFO kablam!    |
Oct 13 17:43:28.518 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Oct 13 17:43:28.518 INFO kablam! 
Oct 13 17:43:28.518 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Oct 13 17:43:28.518 INFO kablam!   --> benches/from_iter.rs:30:9
Oct 13 17:43:28.518 INFO kablam!    |
Oct 13 17:43:28.518 INFO kablam! 30 |         (0..TOTAL).collect::<Vec<_>>();
Oct 13 17:43:28.518 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 17:43:28.518 INFO kablam!    |
Oct 13 17:43:28.518 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Oct 13 17:43:28.518 INFO kablam! 
Oct 13 17:43:29.308 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.48s
Oct 13 17:43:29.314 INFO kablam! su: No module specific data is present
Oct 13 17:43:29.682 INFO running `"docker" "rm" "-f" "8d223d4f0c46c4c0e4c22beb2db3bd6ceed9dc369597f5aa66e26a163259ebef"`
Oct 13 17:43:29.815 INFO blam! 8d223d4f0c46c4c0e4c22beb2db3bd6ceed9dc369597f5aa66e26a163259ebef