Sep 01 21:54:21.694 INFO checking elementtree-0.4.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 21:54:21.694 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 21:54:21.695 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 21:54:21.960 INFO blam! 6601c2b1ebe1d10224f54a0c8023ea63da398c5366fdd419dc5715da7cf51262
Sep 01 21:54:21.961 INFO running `"docker" "start" "-a" "6601c2b1ebe1d10224f54a0c8023ea63da398c5366fdd419dc5715da7cf51262"`
Sep 01 21:54:22.719 INFO kablam!     Checking elementtree v0.4.0 (file:///source)
Sep 01 21:54:26.537 INFO kablam! warning: variable does not need to be mutable
Sep 01 21:54:26.537 INFO kablam!    --> tests/test_basic.rs:138:13
Sep 01 21:54:26.537 INFO kablam!     |
Sep 01 21:54:26.537 INFO kablam! 138 |         let mut list = root.append_new_child("{demo}list");
Sep 01 21:54:26.537 INFO kablam!     |             ----^^^^
Sep 01 21:54:26.538 INFO kablam!     |             |
Sep 01 21:54:26.538 INFO kablam!     |             help: remove this `mut`
Sep 01 21:54:26.538 INFO kablam!     |
Sep 01 21:54:26.538 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 01 21:54:26.538 INFO kablam! 
Sep 01 21:54:26.549 INFO kablam! warning: variable does not need to be mutable
Sep 01 21:54:26.549 INFO kablam!    --> tests/test_basic.rs:183:13
Sep 01 21:54:26.549 INFO kablam!     |
Sep 01 21:54:26.549 INFO kablam! 183 |         let mut list = root.append_new_child("{demo}list");
Sep 01 21:54:26.549 INFO kablam!     |             ----^^^^
Sep 01 21:54:26.549 INFO kablam!     |             |
Sep 01 21:54:26.549 INFO kablam!     |             help: remove this `mut`
Sep 01 21:54:26.549 INFO kablam! 
Sep 01 21:54:26.553 INFO kablam! warning: variable does not need to be mutable
Sep 01 21:54:26.553 INFO kablam!    --> tests/test_basic.rs:210:13
Sep 01 21:54:26.553 INFO kablam!     |
Sep 01 21:54:26.553 INFO kablam! 210 |         let mut list = root.append_new_child("{demo}list");
Sep 01 21:54:26.553 INFO kablam!     |             ----^^^^
Sep 01 21:54:26.553 INFO kablam!     |             |
Sep 01 21:54:26.553 INFO kablam!     |             help: remove this `mut`
Sep 01 21:54:26.553 INFO kablam! 
Sep 01 21:54:26.557 INFO kablam! warning: variable does not need to be mutable
Sep 01 21:54:26.557 INFO kablam!    --> tests/test_basic.rs:238:13
Sep 01 21:54:26.557 INFO kablam!     |
Sep 01 21:54:26.557 INFO kablam! 238 |         let mut list = root.append_new_child("{demo}list");
Sep 01 21:54:26.557 INFO kablam!     |             ----^^^^
Sep 01 21:54:26.557 INFO kablam!     |             |
Sep 01 21:54:26.557 INFO kablam!     |             help: remove this `mut`
Sep 01 21:54:26.557 INFO kablam! 
Sep 01 21:54:26.561 INFO kablam! warning: variable does not need to be mutable
Sep 01 21:54:26.561 INFO kablam!    --> tests/test_basic.rs:266:13
Sep 01 21:54:26.561 INFO kablam!     |
Sep 01 21:54:26.561 INFO kablam! 266 |         let mut list = root.append_new_child("{demo}list");
Sep 01 21:54:26.561 INFO kablam!     |             ----^^^^
Sep 01 21:54:26.561 INFO kablam!     |             |
Sep 01 21:54:26.561 INFO kablam!     |             help: remove this `mut`
Sep 01 21:54:26.561 INFO kablam! 
Sep 01 21:54:26.583 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.91s
Sep 01 21:54:26.587 INFO kablam! su: No module specific data is present
Sep 01 21:54:27.002 INFO running `"docker" "rm" "-f" "6601c2b1ebe1d10224f54a0c8023ea63da398c5366fdd419dc5715da7cf51262"`
Sep 01 21:54:27.084 INFO blam! 6601c2b1ebe1d10224f54a0c8023ea63da398c5366fdd419dc5715da7cf51262