Sep 04 18:51:15.599 INFO checking elementtree-0.4.0 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 18:51:15.599 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 18:51:15.600 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-1/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 18:51:15.762 INFO blam! 0eff24bc08067a25d1aea5cc6a3b414f26a0aed85b517a206bd42284aa781809
Sep 04 18:51:15.763 INFO running `"docker" "start" "-a" "0eff24bc08067a25d1aea5cc6a3b414f26a0aed85b517a206bd42284aa781809"`
Sep 04 18:51:16.502 INFO kablam!     Checking elementtree v0.4.0 (file:///source)
Sep 04 18:51:20.219 INFO kablam! warning: variable does not need to be mutable
Sep 04 18:51:20.220 INFO kablam!    --> tests/test_basic.rs:138:13
Sep 04 18:51:20.220 INFO kablam!     |
Sep 04 18:51:20.220 INFO kablam! 138 |         let mut list = root.append_new_child("{demo}list");
Sep 04 18:51:20.220 INFO kablam!     |             ----^^^^
Sep 04 18:51:20.220 INFO kablam!     |             |
Sep 04 18:51:20.220 INFO kablam!     |             help: remove this `mut`
Sep 04 18:51:20.220 INFO kablam!     |
Sep 04 18:51:20.220 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 04 18:51:20.220 INFO kablam! 
Sep 04 18:51:20.228 INFO kablam! warning: variable does not need to be mutable
Sep 04 18:51:20.228 INFO kablam!    --> tests/test_basic.rs:183:13
Sep 04 18:51:20.228 INFO kablam!     |
Sep 04 18:51:20.228 INFO kablam! 183 |         let mut list = root.append_new_child("{demo}list");
Sep 04 18:51:20.228 INFO kablam!     |             ----^^^^
Sep 04 18:51:20.228 INFO kablam!     |             |
Sep 04 18:51:20.228 INFO kablam!     |             help: remove this `mut`
Sep 04 18:51:20.228 INFO kablam! 
Sep 04 18:51:20.231 INFO kablam! warning: variable does not need to be mutable
Sep 04 18:51:20.231 INFO kablam!    --> tests/test_basic.rs:210:13
Sep 04 18:51:20.231 INFO kablam!     |
Sep 04 18:51:20.231 INFO kablam! 210 |         let mut list = root.append_new_child("{demo}list");
Sep 04 18:51:20.231 INFO kablam!     |             ----^^^^
Sep 04 18:51:20.231 INFO kablam!     |             |
Sep 04 18:51:20.231 INFO kablam!     |             help: remove this `mut`
Sep 04 18:51:20.231 INFO kablam! 
Sep 04 18:51:20.233 INFO kablam! warning: variable does not need to be mutable
Sep 04 18:51:20.233 INFO kablam!    --> tests/test_basic.rs:238:13
Sep 04 18:51:20.233 INFO kablam!     |
Sep 04 18:51:20.233 INFO kablam! 238 |         let mut list = root.append_new_child("{demo}list");
Sep 04 18:51:20.233 INFO kablam!     |             ----^^^^
Sep 04 18:51:20.233 INFO kablam!     |             |
Sep 04 18:51:20.233 INFO kablam!     |             help: remove this `mut`
Sep 04 18:51:20.234 INFO kablam! 
Sep 04 18:51:20.236 INFO kablam! warning: variable does not need to be mutable
Sep 04 18:51:20.236 INFO kablam!    --> tests/test_basic.rs:266:13
Sep 04 18:51:20.236 INFO kablam!     |
Sep 04 18:51:20.236 INFO kablam! 266 |         let mut list = root.append_new_child("{demo}list");
Sep 04 18:51:20.236 INFO kablam!     |             ----^^^^
Sep 04 18:51:20.236 INFO kablam!     |             |
Sep 04 18:51:20.236 INFO kablam!     |             help: remove this `mut`
Sep 04 18:51:20.236 INFO kablam! 
Sep 04 18:51:20.260 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.83s
Sep 04 18:51:20.267 INFO kablam! su: No module specific data is present
Sep 04 18:51:20.865 INFO running `"docker" "rm" "-f" "0eff24bc08067a25d1aea5cc6a3b414f26a0aed85b517a206bd42284aa781809"`
Sep 04 18:51:20.987 INFO blam! 0eff24bc08067a25d1aea5cc6a3b414f26a0aed85b517a206bd42284aa781809