Sep 06 05:16:03.710 INFO checking immutable-0.1.1 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 05:16:03.710 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 05:16:03.710 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-6/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 05:16:03.867 INFO blam! 33bc4b4f733567f21b6d5a36bb1f99bd2d91680afa01ce4fa26399eff147fb9f
Sep 06 05:16:03.868 INFO running `"docker" "start" "-a" "33bc4b4f733567f21b6d5a36bb1f99bd2d91680afa01ce4fa26399eff147fb9f"`
Sep 06 05:16:04.321 INFO kablam! usermod: no changes
Sep 06 05:16:04.340 INFO kablam!     Checking immutable v0.1.1 (file:///source)
Sep 06 05:16:04.546 INFO kablam! warning: unused import: `std::vec::IntoIter`
Sep 06 05:16:04.546 INFO kablam!  --> src/list.rs:7:5
Sep 06 05:16:04.546 INFO kablam!   |
Sep 06 05:16:04.546 INFO kablam! 7 | use std::vec::IntoIter;
Sep 06 05:16:04.546 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Sep 06 05:16:04.546 INFO kablam!   |
Sep 06 05:16:04.546 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 06 05:16:04.546 INFO kablam! 
Sep 06 05:16:04.595 INFO kablam! warning: unused import: `std::vec::IntoIter`
Sep 06 05:16:04.595 INFO kablam!  --> src/list.rs:7:5
Sep 06 05:16:04.595 INFO kablam!   |
Sep 06 05:16:04.595 INFO kablam! 7 | use std::vec::IntoIter;
Sep 06 05:16:04.595 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Sep 06 05:16:04.595 INFO kablam!   |
Sep 06 05:16:04.595 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 06 05:16:04.595 INFO kablam! 
Sep 06 05:16:04.670 INFO kablam! warning: unused attribute
Sep 06 05:16:04.670 INFO kablam!  --> src/list.rs:9:1
Sep 06 05:16:04.670 INFO kablam!   |
Sep 06 05:16:04.670 INFO kablam! 9 | #[macro_escape]
Sep 06 05:16:04.670 INFO kablam!   | ^^^^^^^^^^^^^^^
Sep 06 05:16:04.670 INFO kablam!   |
Sep 06 05:16:04.670 INFO kablam!   = note: #[warn(unused_attributes)] on by default
Sep 06 05:16:04.670 INFO kablam! 
Sep 06 05:16:04.670 INFO kablam! warning: unused attribute
Sep 06 05:16:04.670 INFO kablam!   --> src/tree/binary_tree.rs:11:1
Sep 06 05:16:04.670 INFO kablam!    |
Sep 06 05:16:04.670 INFO kablam! 11 | #[macro_escape]
Sep 06 05:16:04.670 INFO kablam!    | ^^^^^^^^^^^^^^^
Sep 06 05:16:04.670 INFO kablam! 
Sep 06 05:16:04.793 INFO kablam! warning: unused attribute
Sep 06 05:16:04.793 INFO kablam!  --> src/list.rs:9:1
Sep 06 05:16:04.793 INFO kablam!   |
Sep 06 05:16:04.793 INFO kablam! 9 | #[macro_escape]
Sep 06 05:16:04.793 INFO kablam!   | ^^^^^^^^^^^^^^^
Sep 06 05:16:04.793 INFO kablam!   |
Sep 06 05:16:04.793 INFO kablam!   = note: #[warn(unused_attributes)] on by default
Sep 06 05:16:04.793 INFO kablam! 
Sep 06 05:16:04.793 INFO kablam! warning: unused attribute
Sep 06 05:16:04.793 INFO kablam!   --> src/tree/binary_tree.rs:11:1
Sep 06 05:16:04.793 INFO kablam!    |
Sep 06 05:16:04.793 INFO kablam! 11 | #[macro_escape]
Sep 06 05:16:04.793 INFO kablam!    | ^^^^^^^^^^^^^^^
Sep 06 05:16:04.793 INFO kablam! 
Sep 06 05:16:04.807 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
Sep 06 05:16:04.808 INFO kablam! su: No module specific data is present
Sep 06 05:16:05.671 INFO running `"docker" "rm" "-f" "33bc4b4f733567f21b6d5a36bb1f99bd2d91680afa01ce4fa26399eff147fb9f"`
Sep 06 05:16:05.740 INFO blam! 33bc4b4f733567f21b6d5a36bb1f99bd2d91680afa01ce4fa26399eff147fb9f