Sep 20 01:37:31.571 INFO checking immutable-0.1.1 against try#135b4cd023a753409d01e43b0f23d22a899feeeb for pr-54352
Sep 20 01:37:31.571 INFO running: cargo +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets
Sep 20 01:37:31.571 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54352/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-1/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/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 +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 01:37:31.827 INFO blam! bff9d470813fd4108044cfac394bef1d7c4e63d29a734284e344183bfc75be80
Sep 20 01:37:31.829 INFO running `"docker" "start" "-a" "bff9d470813fd4108044cfac394bef1d7c4e63d29a734284e344183bfc75be80"`
Sep 20 01:37:32.403 INFO kablam! usermod: no changes
Sep 20 01:37:32.434 INFO kablam!     Checking immutable v0.1.1 (/source)
Sep 20 01:37:32.674 INFO kablam! warning: unused import: `std::vec::IntoIter`
Sep 20 01:37:32.674 INFO kablam!  --> src/list.rs:7:5
Sep 20 01:37:32.674 INFO kablam!   |
Sep 20 01:37:32.674 INFO kablam! 7 | use std::vec::IntoIter;
Sep 20 01:37:32.674 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Sep 20 01:37:32.674 INFO kablam!   |
Sep 20 01:37:32.674 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 20 01:37:32.674 INFO kablam! 
Sep 20 01:37:32.693 INFO kablam! warning: unused import: `std::vec::IntoIter`
Sep 20 01:37:32.693 INFO kablam!  --> src/list.rs:7:5
Sep 20 01:37:32.693 INFO kablam!   |
Sep 20 01:37:32.693 INFO kablam! 7 | use std::vec::IntoIter;
Sep 20 01:37:32.693 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Sep 20 01:37:32.693 INFO kablam!   |
Sep 20 01:37:32.693 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 20 01:37:32.693 INFO kablam! 
Sep 20 01:37:32.873 INFO kablam! warning: unused attribute
Sep 20 01:37:32.873 INFO kablam!  --> src/list.rs:9:1
Sep 20 01:37:32.873 INFO kablam!   |
Sep 20 01:37:32.873 INFO kablam! 9 | #[macro_escape]
Sep 20 01:37:32.873 INFO kablam!   | ^^^^^^^^^^^^^^^
Sep 20 01:37:32.873 INFO kablam!   |
Sep 20 01:37:32.873 INFO kablam!   = note: #[warn(unused_attributes)] on by default
Sep 20 01:37:32.873 INFO kablam! 
Sep 20 01:37:32.873 INFO kablam! warning: unused attribute
Sep 20 01:37:32.873 INFO kablam!   --> src/tree/binary_tree.rs:11:1
Sep 20 01:37:32.873 INFO kablam!    |
Sep 20 01:37:32.873 INFO kablam! 11 | #[macro_escape]
Sep 20 01:37:32.873 INFO kablam!    | ^^^^^^^^^^^^^^^
Sep 20 01:37:32.873 INFO kablam! 
Sep 20 01:37:32.993 INFO kablam! warning: unused attribute
Sep 20 01:37:32.993 INFO kablam!  --> src/list.rs:9:1
Sep 20 01:37:32.993 INFO kablam!   |
Sep 20 01:37:32.993 INFO kablam! 9 | #[macro_escape]
Sep 20 01:37:32.993 INFO kablam!   | ^^^^^^^^^^^^^^^
Sep 20 01:37:32.993 INFO kablam! 
Sep 20 01:37:32.993 INFO kablam! warning: unused attribute
Sep 20 01:37:32.993 INFO kablam!   --> src/tree/binary_tree.rs:11:1
Sep 20 01:37:32.993 INFO kablam!    |
Sep 20 01:37:32.993 INFO kablam! 11 | #[macro_escape]
Sep 20 01:37:32.993 INFO kablam!    | ^^^^^^^^^^^^^^^
Sep 20 01:37:32.993 INFO kablam! 
Sep 20 01:37:33.007 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
Sep 20 01:37:33.008 INFO kablam! su: No module specific data is present
Sep 20 01:37:33.504 INFO running `"docker" "rm" "-f" "bff9d470813fd4108044cfac394bef1d7c4e63d29a734284e344183bfc75be80"`
Sep 20 01:37:33.569 INFO blam! bff9d470813fd4108044cfac394bef1d7c4e63d29a734284e344183bfc75be80