Sep 06 07:35:07.808 INFO checking elementtree-0.4.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 07:35:07.808 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 07:35:07.808 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-7/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 07:35:07.934 INFO blam! eeb6eb4b547a5858c1dae5dff0676dc356f560471fbe643602563008cd1ab8b5
Sep 06 07:35:07.935 INFO running `"docker" "start" "-a" "eeb6eb4b547a5858c1dae5dff0676dc356f560471fbe643602563008cd1ab8b5"`
Sep 06 07:35:08.880 INFO kablam! usermod: no changes
Sep 06 07:35:08.967 INFO kablam!     Checking elementtree v0.4.0 (file:///source)
Sep 06 07:35:10.606 INFO kablam! warning: variable does not need to be mutable
Sep 06 07:35:10.606 INFO kablam!    --> tests/test_basic.rs:138:13
Sep 06 07:35:10.606 INFO kablam!     |
Sep 06 07:35:10.606 INFO kablam! 138 |         let mut list = root.append_new_child("{demo}list");
Sep 06 07:35:10.606 INFO kablam!     |             ----^^^^
Sep 06 07:35:10.606 INFO kablam!     |             |
Sep 06 07:35:10.606 INFO kablam!     |             help: remove this `mut`
Sep 06 07:35:10.606 INFO kablam!     |
Sep 06 07:35:10.606 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 06 07:35:10.606 INFO kablam! 
Sep 06 07:35:10.615 INFO kablam! warning: variable does not need to be mutable
Sep 06 07:35:10.615 INFO kablam!    --> tests/test_basic.rs:183:13
Sep 06 07:35:10.615 INFO kablam!     |
Sep 06 07:35:10.615 INFO kablam! 183 |         let mut list = root.append_new_child("{demo}list");
Sep 06 07:35:10.615 INFO kablam!     |             ----^^^^
Sep 06 07:35:10.615 INFO kablam!     |             |
Sep 06 07:35:10.615 INFO kablam!     |             help: remove this `mut`
Sep 06 07:35:10.615 INFO kablam! 
Sep 06 07:35:10.617 INFO kablam! warning: variable does not need to be mutable
Sep 06 07:35:10.617 INFO kablam!    --> tests/test_basic.rs:210:13
Sep 06 07:35:10.617 INFO kablam!     |
Sep 06 07:35:10.617 INFO kablam! 210 |         let mut list = root.append_new_child("{demo}list");
Sep 06 07:35:10.617 INFO kablam!     |             ----^^^^
Sep 06 07:35:10.617 INFO kablam!     |             |
Sep 06 07:35:10.617 INFO kablam!     |             help: remove this `mut`
Sep 06 07:35:10.617 INFO kablam! 
Sep 06 07:35:10.619 INFO kablam! warning: variable does not need to be mutable
Sep 06 07:35:10.619 INFO kablam!    --> tests/test_basic.rs:238:13
Sep 06 07:35:10.619 INFO kablam!     |
Sep 06 07:35:10.619 INFO kablam! 238 |         let mut list = root.append_new_child("{demo}list");
Sep 06 07:35:10.619 INFO kablam!     |             ----^^^^
Sep 06 07:35:10.619 INFO kablam!     |             |
Sep 06 07:35:10.619 INFO kablam!     |             help: remove this `mut`
Sep 06 07:35:10.619 INFO kablam! 
Sep 06 07:35:10.621 INFO kablam! warning: variable does not need to be mutable
Sep 06 07:35:10.621 INFO kablam!    --> tests/test_basic.rs:266:13
Sep 06 07:35:10.621 INFO kablam!     |
Sep 06 07:35:10.621 INFO kablam! 266 |         let mut list = root.append_new_child("{demo}list");
Sep 06 07:35:10.621 INFO kablam!     |             ----^^^^
Sep 06 07:35:10.621 INFO kablam!     |             |
Sep 06 07:35:10.621 INFO kablam!     |             help: remove this `mut`
Sep 06 07:35:10.621 INFO kablam! 
Sep 06 07:35:10.644 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
Sep 06 07:35:10.649 INFO kablam! su: No module specific data is present
Sep 06 07:35:11.090 INFO running `"docker" "rm" "-f" "eeb6eb4b547a5858c1dae5dff0676dc356f560471fbe643602563008cd1ab8b5"`
Sep 06 07:35:11.151 INFO blam! eeb6eb4b547a5858c1dae5dff0676dc356f560471fbe643602563008cd1ab8b5