Nov 01 21:11:34.095 INFO checking immutable-0.1.1 against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Nov 01 21:11:34.095 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-3/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +05812fa8c588473f03e3fa7cf59cd84f4f37c715-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 21:11:34.248 INFO blam! 36d9aacd785baab0422fb14056e9307f901b40bf854e344ed8b4f792fac5f519
Nov 01 21:11:34.249 INFO running `"docker" "start" "-a" "36d9aacd785baab0422fb14056e9307f901b40bf854e344ed8b4f792fac5f519"`
Nov 01 21:11:34.688 INFO kablam! usermod: no changes
Nov 01 21:11:34.723 INFO kablam!     Checking immutable v0.1.1 (/source)
Nov 01 21:11:35.288 INFO kablam! warning: unused import: `std::vec::IntoIter`
Nov 01 21:11:35.288 INFO kablam!  --> src/list.rs:7:5
Nov 01 21:11:35.288 INFO kablam!   |
Nov 01 21:11:35.288 INFO kablam! 7 | use std::vec::IntoIter;
Nov 01 21:11:35.288 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Nov 01 21:11:35.288 INFO kablam!   |
Nov 01 21:11:35.288 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 01 21:11:35.288 INFO kablam! 
Nov 01 21:11:35.469 INFO kablam! warning: unused attribute
Nov 01 21:11:35.469 INFO kablam!  --> src/list.rs:9:1
Nov 01 21:11:35.469 INFO kablam!   |
Nov 01 21:11:35.469 INFO kablam! 9 | #[macro_escape]
Nov 01 21:11:35.469 INFO kablam!   | ^^^^^^^^^^^^^^^
Nov 01 21:11:35.469 INFO kablam!   |
Nov 01 21:11:35.469 INFO kablam!   = note: #[warn(unused_attributes)] on by default
Nov 01 21:11:35.469 INFO kablam! 
Nov 01 21:11:35.469 INFO kablam! warning: unused attribute
Nov 01 21:11:35.469 INFO kablam!   --> src/tree/binary_tree.rs:11:1
Nov 01 21:11:35.469 INFO kablam!    |
Nov 01 21:11:35.469 INFO kablam! 11 | #[macro_escape]
Nov 01 21:11:35.469 INFO kablam!    | ^^^^^^^^^^^^^^^
Nov 01 21:11:35.469 INFO kablam! 
Nov 01 21:11:35.714 INFO kablam! warning: unused import: `std::vec::IntoIter`
Nov 01 21:11:35.714 INFO kablam!  --> src/list.rs:7:5
Nov 01 21:11:35.714 INFO kablam!   |
Nov 01 21:11:35.714 INFO kablam! 7 | use std::vec::IntoIter;
Nov 01 21:11:35.714 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Nov 01 21:11:35.714 INFO kablam!   |
Nov 01 21:11:35.714 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 01 21:11:35.714 INFO kablam! 
Nov 01 21:11:36.029 INFO kablam! warning: unused attribute
Nov 01 21:11:36.029 INFO kablam!  --> src/list.rs:9:1
Nov 01 21:11:36.029 INFO kablam!   |
Nov 01 21:11:36.029 INFO kablam! 9 | #[macro_escape]
Nov 01 21:11:36.029 INFO kablam!   | ^^^^^^^^^^^^^^^
Nov 01 21:11:36.029 INFO kablam!   |
Nov 01 21:11:36.029 INFO kablam!   = note: #[warn(unused_attributes)] on by default
Nov 01 21:11:36.029 INFO kablam! 
Nov 01 21:11:36.029 INFO kablam! warning: unused attribute
Nov 01 21:11:36.029 INFO kablam!   --> src/tree/binary_tree.rs:11:1
Nov 01 21:11:36.029 INFO kablam!    |
Nov 01 21:11:36.029 INFO kablam! 11 | #[macro_escape]
Nov 01 21:11:36.029 INFO kablam!    | ^^^^^^^^^^^^^^^
Nov 01 21:11:36.029 INFO kablam! 
Nov 01 21:11:36.092 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
Nov 01 21:11:36.096 INFO kablam! su: No module specific data is present
Nov 01 21:11:37.314 INFO running `"docker" "rm" "-f" "36d9aacd785baab0422fb14056e9307f901b40bf854e344ed8b4f792fac5f519"`
Nov 01 21:11:37.580 INFO blam! 36d9aacd785baab0422fb14056e9307f901b40bf854e344ed8b4f792fac5f519