Nov 30 23:27:04.806 INFO checking elementtree-0.5.0 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 23:27:04.806 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-3/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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"`
Nov 30 23:27:05.041 INFO [stdout] 10b0653522b218e36bbe6293aaee15f542270769412db13972ca72c99241e1fb
Nov 30 23:27:05.042 INFO running `"docker" "start" "-a" "10b0653522b218e36bbe6293aaee15f542270769412db13972ca72c99241e1fb"`
Nov 30 23:27:05.431 INFO [stderr] usermod: no changes
Nov 30 23:27:05.505 INFO [stderr]     Checking string_cache v0.7.3
Nov 30 23:27:06.394 INFO [stderr]     Checking elementtree v0.5.0 (/source)
Nov 30 23:27:10.723 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:27:10.723 INFO [stderr]    --> tests/test_basic.rs:138:13
Nov 30 23:27:10.723 INFO [stderr]     |
Nov 30 23:27:10.723 INFO [stderr] 138 |         let mut list = root.append_new_child("{demo}list");
Nov 30 23:27:10.723 INFO [stderr]     |             ----^^^^
Nov 30 23:27:10.723 INFO [stderr]     |             |
Nov 30 23:27:10.723 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:27:10.723 INFO [stderr]     |
Nov 30 23:27:10.723 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 23:27:10.723 INFO [stderr] 
Nov 30 23:27:10.728 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:27:10.728 INFO [stderr]    --> tests/test_basic.rs:183:13
Nov 30 23:27:10.728 INFO [stderr]     |
Nov 30 23:27:10.728 INFO [stderr] 183 |         let mut list = root.append_new_child("{demo}list");
Nov 30 23:27:10.728 INFO [stderr]     |             ----^^^^
Nov 30 23:27:10.728 INFO [stderr]     |             |
Nov 30 23:27:10.728 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:27:10.728 INFO [stderr] 
Nov 30 23:27:10.728 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:27:10.728 INFO [stderr]    --> tests/test_basic.rs:210:13
Nov 30 23:27:10.728 INFO [stderr]     |
Nov 30 23:27:10.728 INFO [stderr] 210 |         let mut list = root.append_new_child("{demo}list");
Nov 30 23:27:10.728 INFO [stderr]     |             ----^^^^
Nov 30 23:27:10.728 INFO [stderr]     |             |
Nov 30 23:27:10.728 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:27:10.728 INFO [stderr] 
Nov 30 23:27:10.735 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:27:10.735 INFO [stderr]    --> tests/test_basic.rs:238:13
Nov 30 23:27:10.735 INFO [stderr]     |
Nov 30 23:27:10.735 INFO [stderr] 238 |         let mut list = root.append_new_child("{demo}list");
Nov 30 23:27:10.735 INFO [stderr]     |             ----^^^^
Nov 30 23:27:10.736 INFO [stderr]     |             |
Nov 30 23:27:10.736 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:27:10.736 INFO [stderr] 
Nov 30 23:27:10.740 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:27:10.740 INFO [stderr]    --> tests/test_basic.rs:266:13
Nov 30 23:27:10.740 INFO [stderr]     |
Nov 30 23:27:10.740 INFO [stderr] 266 |         let mut list = root.append_new_child("{demo}list");
Nov 30 23:27:10.740 INFO [stderr]     |             ----^^^^
Nov 30 23:27:10.740 INFO [stderr]     |             |
Nov 30 23:27:10.740 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:27:10.740 INFO [stderr] 
Nov 30 23:27:10.740 INFO [stderr] warning: variable does not need to be mutable
Nov 30 23:27:10.740 INFO [stderr]    --> tests/test_basic.rs:323:13
Nov 30 23:27:10.740 INFO [stderr]     |
Nov 30 23:27:10.740 INFO [stderr] 323 |         let mut list = root.find_mut("list").unwrap();
Nov 30 23:27:10.740 INFO [stderr]     |             ----^^^^
Nov 30 23:27:10.740 INFO [stderr]     |             |
Nov 30 23:27:10.740 INFO [stderr]     |             help: remove this `mut`
Nov 30 23:27:10.740 INFO [stderr] 
Nov 30 23:27:10.792 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.33s
Nov 30 23:27:10.793 INFO [stderr] su: No module specific data is present
Nov 30 23:27:11.434 INFO running `"docker" "inspect" "10b0653522b218e36bbe6293aaee15f542270769412db13972ca72c99241e1fb"`
Nov 30 23:27:11.726 INFO running `"docker" "rm" "-f" "10b0653522b218e36bbe6293aaee15f542270769412db13972ca72c99241e1fb"`
Nov 30 23:27:12.127 INFO [stdout] 10b0653522b218e36bbe6293aaee15f542270769412db13972ca72c99241e1fb