Dec 05 14:15:38.724 INFO checking elementtree-0.5.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 14:15:38.724 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 05 14:15:38.916 INFO [stdout] c7d173aa07c984059f897fe89b3bb1ae632849bff0d9edcbb51b6f281129642d
Dec 05 14:15:38.920 INFO running `"docker" "start" "-a" "c7d173aa07c984059f897fe89b3bb1ae632849bff0d9edcbb51b6f281129642d"`
Dec 05 14:15:39.651 INFO [stderr] usermod: no changes
Dec 05 14:15:39.748 INFO [stderr]     Checking elementtree v0.5.0 (/source)
Dec 05 14:15:44.203 INFO [stderr] warning: variable does not need to be mutable
Dec 05 14:15:44.203 INFO [stderr]    --> tests/test_basic.rs:138:13
Dec 05 14:15:44.203 INFO [stderr]     |
Dec 05 14:15:44.203 INFO [stderr] 138 |         let mut list = root.append_new_child("{demo}list");
Dec 05 14:15:44.203 INFO [stderr]     |             ----^^^^
Dec 05 14:15:44.203 INFO [stderr]     |             |
Dec 05 14:15:44.203 INFO [stderr]     |             help: remove this `mut`
Dec 05 14:15:44.203 INFO [stderr]     |
Dec 05 14:15:44.203 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 14:15:44.203 INFO [stderr] 
Dec 05 14:15:44.203 INFO [stderr] warning: variable does not need to be mutable
Dec 05 14:15:44.203 INFO [stderr]    --> tests/test_basic.rs:183:13
Dec 05 14:15:44.203 INFO [stderr]     |
Dec 05 14:15:44.203 INFO [stderr] 183 |         let mut list = root.append_new_child("{demo}list");
Dec 05 14:15:44.203 INFO [stderr]     |             ----^^^^
Dec 05 14:15:44.203 INFO [stderr]     |             |
Dec 05 14:15:44.203 INFO [stderr]     |             help: remove this `mut`
Dec 05 14:15:44.203 INFO [stderr] 
Dec 05 14:15:44.203 INFO [stderr] warning: variable does not need to be mutable
Dec 05 14:15:44.203 INFO [stderr]    --> tests/test_basic.rs:210:13
Dec 05 14:15:44.203 INFO [stderr]     |
Dec 05 14:15:44.203 INFO [stderr] 210 |         let mut list = root.append_new_child("{demo}list");
Dec 05 14:15:44.203 INFO [stderr]     |             ----^^^^
Dec 05 14:15:44.203 INFO [stderr]     |             |
Dec 05 14:15:44.203 INFO [stderr]     |             help: remove this `mut`
Dec 05 14:15:44.203 INFO [stderr] 
Dec 05 14:15:44.203 INFO [stderr] warning: variable does not need to be mutable
Dec 05 14:15:44.203 INFO [stderr]    --> tests/test_basic.rs:238:13
Dec 05 14:15:44.203 INFO [stderr]     |
Dec 05 14:15:44.203 INFO [stderr] 238 |         let mut list = root.append_new_child("{demo}list");
Dec 05 14:15:44.203 INFO [stderr]     |             ----^^^^
Dec 05 14:15:44.203 INFO [stderr]     |             |
Dec 05 14:15:44.203 INFO [stderr]     |             help: remove this `mut`
Dec 05 14:15:44.203 INFO [stderr] 
Dec 05 14:15:44.203 INFO [stderr] warning: variable does not need to be mutable
Dec 05 14:15:44.203 INFO [stderr]    --> tests/test_basic.rs:266:13
Dec 05 14:15:44.203 INFO [stderr]     |
Dec 05 14:15:44.203 INFO [stderr] 266 |         let mut list = root.append_new_child("{demo}list");
Dec 05 14:15:44.203 INFO [stderr]     |             ----^^^^
Dec 05 14:15:44.203 INFO [stderr]     |             |
Dec 05 14:15:44.203 INFO [stderr]     |             help: remove this `mut`
Dec 05 14:15:44.203 INFO [stderr] 
Dec 05 14:15:44.207 INFO [stderr] warning: variable does not need to be mutable
Dec 05 14:15:44.207 INFO [stderr]    --> tests/test_basic.rs:323:13
Dec 05 14:15:44.207 INFO [stderr]     |
Dec 05 14:15:44.207 INFO [stderr] 323 |         let mut list = root.find_mut("list").unwrap();
Dec 05 14:15:44.207 INFO [stderr]     |             ----^^^^
Dec 05 14:15:44.207 INFO [stderr]     |             |
Dec 05 14:15:44.207 INFO [stderr]     |             help: remove this `mut`
Dec 05 14:15:44.207 INFO [stderr] 
Dec 05 14:15:44.241 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.56s
Dec 05 14:15:44.242 INFO [stderr] su: No module specific data is present
Dec 05 14:15:45.028 INFO running `"docker" "inspect" "c7d173aa07c984059f897fe89b3bb1ae632849bff0d9edcbb51b6f281129642d"`
Dec 05 14:15:45.369 INFO running `"docker" "rm" "-f" "c7d173aa07c984059f897fe89b3bb1ae632849bff0d9edcbb51b6f281129642d"`
Dec 05 14:15:45.691 INFO [stdout] c7d173aa07c984059f897fe89b3bb1ae632849bff0d9edcbb51b6f281129642d