Nov 27 19:32:13.285 INFO checking suelz/chapter_4 against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 27 19:32:13.285 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 27 19:32:13.810 INFO [stdout] 9ae1fd99f4d0e1451ff73b9c103c85d9a67c971d404de0ee82022421bb7d7e75
Nov 27 19:32:13.812 INFO running `"docker" "start" "-a" "9ae1fd99f4d0e1451ff73b9c103c85d9a67c971d404de0ee82022421bb7d7e75"`
Nov 27 19:32:15.396 INFO [stderr] usermod: no changes
Nov 27 19:32:15.480 INFO [stderr]     Checking ch4 v0.1.0 (/source)
Nov 27 19:32:15.861 INFO [stderr] warning: unused variable: `word`
Nov 27 19:32:15.861 INFO [stderr]   --> src/main.rs:28:9
Nov 27 19:32:15.861 INFO [stderr]    |
Nov 27 19:32:15.861 INFO [stderr] 28 |     let word = first_word(&x);
Nov 27 19:32:15.862 INFO [stderr]    |         ^^^^ help: consider using `_word` instead
Nov 27 19:32:15.862 INFO [stderr]    |
Nov 27 19:32:15.862 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 19:32:15.863 INFO [stderr] 
Nov 27 19:32:15.864 INFO [stderr] warning: variable does not need to be mutable
Nov 27 19:32:15.865 INFO [stderr]   --> src/main.rs:26:9
Nov 27 19:32:15.865 INFO [stderr]    |
Nov 27 19:32:15.865 INFO [stderr] 26 |     let mut x = String::from("Conor Kennedy");
Nov 27 19:32:15.866 INFO [stderr]    |         ----^
Nov 27 19:32:15.866 INFO [stderr]    |         |
Nov 27 19:32:15.866 INFO [stderr]    |         help: remove this `mut`
Nov 27 19:32:15.867 INFO [stderr]    |
Nov 27 19:32:15.867 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 27 19:32:15.867 INFO [stderr] 
Nov 27 19:32:15.867 INFO [stderr] warning: unused variable: `word`
Nov 27 19:32:15.868 INFO [stderr]   --> src/main.rs:28:9
Nov 27 19:32:15.868 INFO [stderr]    |
Nov 27 19:32:15.868 INFO [stderr] 28 |     let word = first_word(&x);
Nov 27 19:32:15.869 INFO [stderr]    |         ^^^^ help: consider using `_word` instead
Nov 27 19:32:15.869 INFO [stderr]    |
Nov 27 19:32:15.869 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 19:32:15.869 INFO [stderr] 
Nov 27 19:32:15.888 INFO [stderr] warning: variable does not need to be mutable
Nov 27 19:32:15.888 INFO [stderr]   --> src/main.rs:26:9
Nov 27 19:32:15.888 INFO [stderr]    |
Nov 27 19:32:15.888 INFO [stderr] 26 |     let mut x = String::from("Conor Kennedy");
Nov 27 19:32:15.888 INFO [stderr]    |         ----^
Nov 27 19:32:15.888 INFO [stderr]    |         |
Nov 27 19:32:15.888 INFO [stderr]    |         help: remove this `mut`
Nov 27 19:32:15.888 INFO [stderr]    |
Nov 27 19:32:15.888 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 27 19:32:15.888 INFO [stderr] 
Nov 27 19:32:15.938 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
Nov 27 19:32:15.940 INFO [stderr] su: No module specific data is present
Nov 27 19:32:16.476 INFO running `"docker" "inspect" "9ae1fd99f4d0e1451ff73b9c103c85d9a67c971d404de0ee82022421bb7d7e75"`
Nov 27 19:32:16.768 INFO running `"docker" "rm" "-f" "9ae1fd99f4d0e1451ff73b9c103c85d9a67c971d404de0ee82022421bb7d7e75"`
Nov 27 19:32:17.020 INFO [stdout] 9ae1fd99f4d0e1451ff73b9c103c85d9a67c971d404de0ee82022421bb7d7e75