Sep 20 04:31:15.166 INFO checking binary-tree-0.2.0 against try#fcacde07b66fe513e52c41b73aef91bcc121905b for pr-54346
Sep 20 04:31:15.166 INFO running: cargo +fcacde07b66fe513e52c41b73aef91bcc121905b-alt check --frozen --all --all-targets
Sep 20 04:31:15.166 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54346/try#fcacde07b66fe513e52c41b73aef91bcc121905b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-3/try#fcacde07b66fe513e52c41b73aef91bcc121905b:/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 +fcacde07b66fe513e52c41b73aef91bcc121905b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 04:31:15.463 INFO blam! 0c983a544f5c2e3d786d9db3411eaeb776a6a48bcef9565fd609b40dfafbdacf
Sep 20 04:31:15.465 INFO running `"docker" "start" "-a" "0c983a544f5c2e3d786d9db3411eaeb776a6a48bcef9565fd609b40dfafbdacf"`
Sep 20 04:31:16.235 INFO kablam! usermod: no changes
Sep 20 04:31:16.303 INFO kablam!     Checking binary-tree v0.2.0 (/source)
Sep 20 04:31:18.099 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 20 04:31:18.099 INFO kablam!   --> benches/from_iter.rs:16:9
Sep 20 04:31:18.099 INFO kablam!    |
Sep 20 04:31:18.099 INFO kablam! 16 |         (0..TOTAL).collect::<CountTree<_>>();
Sep 20 04:31:18.099 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 04:31:18.099 INFO kablam!    |
Sep 20 04:31:18.100 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 20 04:31:18.100 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 20 04:31:18.100 INFO kablam! 
Sep 20 04:31:18.100 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 20 04:31:18.100 INFO kablam!   --> benches/from_iter.rs:23:9
Sep 20 04:31:18.100 INFO kablam!    |
Sep 20 04:31:18.100 INFO kablam! 23 |         (0..TOTAL).collect::<LinkedList<_>>();
Sep 20 04:31:18.100 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 04:31:18.100 INFO kablam!    |
Sep 20 04:31:18.100 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 20 04:31:18.100 INFO kablam! 
Sep 20 04:31:18.100 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 20 04:31:18.100 INFO kablam!   --> benches/from_iter.rs:30:9
Sep 20 04:31:18.100 INFO kablam!    |
Sep 20 04:31:18.100 INFO kablam! 30 |         (0..TOTAL).collect::<Vec<_>>();
Sep 20 04:31:18.100 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 04:31:18.100 INFO kablam!    |
Sep 20 04:31:18.100 INFO kablam!    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 20 04:31:18.100 INFO kablam! 
Sep 20 04:31:18.447 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.18s
Sep 20 04:31:18.447 INFO kablam! su: No module specific data is present
Sep 20 04:31:19.206 INFO running `"docker" "rm" "-f" "0c983a544f5c2e3d786d9db3411eaeb776a6a48bcef9565fd609b40dfafbdacf"`
Sep 20 04:31:19.336 INFO blam! 0c983a544f5c2e3d786d9db3411eaeb776a6a48bcef9565fd609b40dfafbdacf