Sep 17 22:48:31.504 INFO checking immutable-0.1.1 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 17 22:48:31.504 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 17 22:48:31.504 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-7/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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 +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 22:48:31.668 INFO blam! 1cbf2f625d113dc974c1f541413a74cb3e7cdd2fad70515f72be380909adaeba
Sep 17 22:48:31.670 INFO running `"docker" "start" "-a" "1cbf2f625d113dc974c1f541413a74cb3e7cdd2fad70515f72be380909adaeba"`
Sep 17 22:48:32.745 INFO kablam! usermod: no changes
Sep 17 22:48:32.764 INFO kablam!     Checking immutable v0.1.1 (/source)
Sep 17 22:48:32.943 INFO kablam! warning: unused import: `std::vec::IntoIter`
Sep 17 22:48:32.943 INFO kablam!  --> src/list.rs:7:5
Sep 17 22:48:32.943 INFO kablam!   |
Sep 17 22:48:32.943 INFO kablam! 7 | use std::vec::IntoIter;
Sep 17 22:48:32.943 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Sep 17 22:48:32.943 INFO kablam!   |
Sep 17 22:48:32.943 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 17 22:48:32.943 INFO kablam! 
Sep 17 22:48:33.049 INFO kablam! warning: unused import: `std::vec::IntoIter`
Sep 17 22:48:33.049 INFO kablam!  --> src/list.rs:7:5
Sep 17 22:48:33.049 INFO kablam!   |
Sep 17 22:48:33.049 INFO kablam! 7 | use std::vec::IntoIter;
Sep 17 22:48:33.049 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Sep 17 22:48:33.049 INFO kablam!   |
Sep 17 22:48:33.049 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 17 22:48:33.049 INFO kablam! 
Sep 17 22:48:33.085 INFO kablam! warning: unused attribute
Sep 17 22:48:33.085 INFO kablam!  --> src/list.rs:9:1
Sep 17 22:48:33.085 INFO kablam!   |
Sep 17 22:48:33.085 INFO kablam! 9 | #[macro_escape]
Sep 17 22:48:33.085 INFO kablam!   | ^^^^^^^^^^^^^^^
Sep 17 22:48:33.085 INFO kablam!   |
Sep 17 22:48:33.085 INFO kablam!   = note: #[warn(unused_attributes)] on by default
Sep 17 22:48:33.085 INFO kablam! 
Sep 17 22:48:33.085 INFO kablam! warning: unused attribute
Sep 17 22:48:33.085 INFO kablam!   --> src/tree/binary_tree.rs:11:1
Sep 17 22:48:33.085 INFO kablam!    |
Sep 17 22:48:33.085 INFO kablam! 11 | #[macro_escape]
Sep 17 22:48:33.085 INFO kablam!    | ^^^^^^^^^^^^^^^
Sep 17 22:48:33.085 INFO kablam! 
Sep 17 22:48:33.311 INFO kablam! warning: unused attribute
Sep 17 22:48:33.311 INFO kablam!  --> src/list.rs:9:1
Sep 17 22:48:33.311 INFO kablam!   |
Sep 17 22:48:33.311 INFO kablam! 9 | #[macro_escape]
Sep 17 22:48:33.311 INFO kablam!   | ^^^^^^^^^^^^^^^
Sep 17 22:48:33.311 INFO kablam!   |
Sep 17 22:48:33.311 INFO kablam!   = note: #[warn(unused_attributes)] on by default
Sep 17 22:48:33.311 INFO kablam! 
Sep 17 22:48:33.311 INFO kablam! warning: unused attribute
Sep 17 22:48:33.311 INFO kablam!   --> src/tree/binary_tree.rs:11:1
Sep 17 22:48:33.311 INFO kablam!    |
Sep 17 22:48:33.311 INFO kablam! 11 | #[macro_escape]
Sep 17 22:48:33.311 INFO kablam!    | ^^^^^^^^^^^^^^^
Sep 17 22:48:33.311 INFO kablam! 
Sep 17 22:48:33.327 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
Sep 17 22:48:33.328 INFO kablam! su: No module specific data is present
Sep 17 22:48:33.979 INFO running `"docker" "rm" "-f" "1cbf2f625d113dc974c1f541413a74cb3e7cdd2fad70515f72be380909adaeba"`
Sep 17 22:48:34.055 INFO blam! 1cbf2f625d113dc974c1f541413a74cb3e7cdd2fad70515f72be380909adaeba