Sep 20 06:10:04.495 INFO checking binary-tree-0.2.0 against master#1e21c9a297a9fe668d62887a3a6a4add8e717b17 for pr-54352
Sep 20 06:10:04.495 INFO running: cargo +1e21c9a297a9fe668d62887a3a6a4add8e717b17-alt check --frozen --all --all-targets
Sep 20 06:10:04.495 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54352/master#1e21c9a297a9fe668d62887a3a6a4add8e717b17:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-3/master#1e21c9a297a9fe668d62887a3a6a4add8e717b17:/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 +1e21c9a297a9fe668d62887a3a6a4add8e717b17-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 06:10:04.667 INFO blam! ca55e0937dcb2edcf4a9d807b783fca388052b6a1f804024a841265f68447f9b
Sep 20 06:10:04.669 INFO running `"docker" "start" "-a" "ca55e0937dcb2edcf4a9d807b783fca388052b6a1f804024a841265f68447f9b"`
Sep 20 06:10:05.251 INFO kablam! usermod: no changes
Sep 20 06:10:05.294 INFO kablam!     Checking binary-tree v0.2.0 (/source)
Sep 20 06:10:06.838 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 20 06:10:06.838 INFO kablam!   --> benches/from_iter.rs:16:9
Sep 20 06:10:06.838 INFO kablam!    |
Sep 20 06:10:06.838 INFO kablam! 16 |         (0..TOTAL).collect::<CountTree<_>>();
Sep 20 06:10:06.838 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 06:10:06.838 INFO kablam!    |
Sep 20 06:10:06.838 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 20 06:10:06.838 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 20 06:10:06.838 INFO kablam! 
Sep 20 06:10:06.838 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 20 06:10:06.838 INFO kablam!   --> benches/from_iter.rs:23:9
Sep 20 06:10:06.838 INFO kablam!    |
Sep 20 06:10:06.838 INFO kablam! 23 |         (0..TOTAL).collect::<LinkedList<_>>();
Sep 20 06:10:06.838 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 06:10:06.838 INFO kablam!    |
Sep 20 06:10:06.838 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 20 06:10:06.838 INFO kablam! 
Sep 20 06:10:06.838 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 20 06:10:06.838 INFO kablam!   --> benches/from_iter.rs:30:9
Sep 20 06:10:06.838 INFO kablam!    |
Sep 20 06:10:06.838 INFO kablam! 30 |         (0..TOTAL).collect::<Vec<_>>();
Sep 20 06:10:06.838 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 06:10:06.838 INFO kablam!    |
Sep 20 06:10:06.838 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 20 06:10:06.838 INFO kablam! 
Sep 20 06:10:07.057 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
Sep 20 06:10:07.057 INFO kablam! su: No module specific data is present
Sep 20 06:10:07.468 INFO running `"docker" "rm" "-f" "ca55e0937dcb2edcf4a9d807b783fca388052b6a1f804024a841265f68447f9b"`
Sep 20 06:10:07.566 INFO blam! ca55e0937dcb2edcf4a9d807b783fca388052b6a1f804024a841265f68447f9b