Sep 02 15:31:47.889 INFO checking elementtree-0.4.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 15:31:47.889 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 15:31:47.889 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-3/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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=500" "-e" "CMD=cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 15:31:48.046 INFO blam! 05e01bd3d8e394c0202e0cdf3e0d218f006c94fd7821325c05fe7732639631b7
Sep 02 15:31:48.049 INFO running `"docker" "start" "-a" "05e01bd3d8e394c0202e0cdf3e0d218f006c94fd7821325c05fe7732639631b7"`
Sep 02 15:31:48.736 INFO kablam!     Checking elementtree v0.4.0 (file:///source)
Sep 02 15:31:52.186 INFO kablam! warning: variable does not need to be mutable
Sep 02 15:31:52.186 INFO kablam!    --> tests/test_basic.rs:138:13
Sep 02 15:31:52.186 INFO kablam!     |
Sep 02 15:31:52.186 INFO kablam! 138 |         let mut list = root.append_new_child("{demo}list");
Sep 02 15:31:52.186 INFO kablam!     |             ----^^^^
Sep 02 15:31:52.187 INFO kablam!     |             |
Sep 02 15:31:52.187 INFO kablam!     |             help: remove this `mut`
Sep 02 15:31:52.187 INFO kablam!     |
Sep 02 15:31:52.187 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 02 15:31:52.187 INFO kablam! 
Sep 02 15:31:52.196 INFO kablam! warning: variable does not need to be mutable
Sep 02 15:31:52.196 INFO kablam!    --> tests/test_basic.rs:183:13
Sep 02 15:31:52.197 INFO kablam!     |
Sep 02 15:31:52.197 INFO kablam! 183 |         let mut list = root.append_new_child("{demo}list");
Sep 02 15:31:52.197 INFO kablam!     |             ----^^^^
Sep 02 15:31:52.197 INFO kablam!     |             |
Sep 02 15:31:52.197 INFO kablam!     |             help: remove this `mut`
Sep 02 15:31:52.197 INFO kablam! 
Sep 02 15:31:52.200 INFO kablam! warning: variable does not need to be mutable
Sep 02 15:31:52.200 INFO kablam!    --> tests/test_basic.rs:210:13
Sep 02 15:31:52.200 INFO kablam!     |
Sep 02 15:31:52.200 INFO kablam! 210 |         let mut list = root.append_new_child("{demo}list");
Sep 02 15:31:52.200 INFO kablam!     |             ----^^^^
Sep 02 15:31:52.200 INFO kablam!     |             |
Sep 02 15:31:52.200 INFO kablam!     |             help: remove this `mut`
Sep 02 15:31:52.201 INFO kablam! 
Sep 02 15:31:52.203 INFO kablam! warning: variable does not need to be mutable
Sep 02 15:31:52.203 INFO kablam!    --> tests/test_basic.rs:238:13
Sep 02 15:31:52.203 INFO kablam!     |
Sep 02 15:31:52.203 INFO kablam! 238 |         let mut list = root.append_new_child("{demo}list");
Sep 02 15:31:52.203 INFO kablam!     |             ----^^^^
Sep 02 15:31:52.203 INFO kablam!     |             |
Sep 02 15:31:52.203 INFO kablam!     |             help: remove this `mut`
Sep 02 15:31:52.203 INFO kablam! 
Sep 02 15:31:52.207 INFO kablam! warning: variable does not need to be mutable
Sep 02 15:31:52.207 INFO kablam!    --> tests/test_basic.rs:266:13
Sep 02 15:31:52.207 INFO kablam!     |
Sep 02 15:31:52.207 INFO kablam! 266 |         let mut list = root.append_new_child("{demo}list");
Sep 02 15:31:52.207 INFO kablam!     |             ----^^^^
Sep 02 15:31:52.207 INFO kablam!     |             |
Sep 02 15:31:52.207 INFO kablam!     |             help: remove this `mut`
Sep 02 15:31:52.207 INFO kablam! 
Sep 02 15:31:52.240 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.58s
Sep 02 15:31:52.247 INFO kablam! su: No module specific data is present
Sep 02 15:31:52.723 INFO running `"docker" "rm" "-f" "05e01bd3d8e394c0202e0cdf3e0d218f006c94fd7821325c05fe7732639631b7"`
Sep 02 15:31:52.824 INFO blam! 05e01bd3d8e394c0202e0cdf3e0d218f006c94fd7821325c05fe7732639631b7