Nov 29 17:21:30.953 INFO checking suelz/chapter_4 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 17:21:30.953 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-5/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 29 17:21:31.425 INFO [stdout] dfce4e4fb20b1c5a57a436d70d56a0c7fa4b35352578fd10fee947cb4d1bdd70
Nov 29 17:21:31.430 INFO running `"docker" "start" "-a" "dfce4e4fb20b1c5a57a436d70d56a0c7fa4b35352578fd10fee947cb4d1bdd70"`
Nov 29 17:21:32.680 INFO [stderr] usermod: no changes
Nov 29 17:21:32.744 INFO [stderr]     Checking ch4 v0.1.0 (/source)
Nov 29 17:21:33.062 INFO [stderr] warning: unused variable: `word`
Nov 29 17:21:33.062 INFO [stderr]   --> src/main.rs:28:9
Nov 29 17:21:33.062 INFO [stderr]    |
Nov 29 17:21:33.062 INFO [stderr] 28 |     let word = first_word(&x);
Nov 29 17:21:33.062 INFO [stderr]    |         ^^^^ help: consider using `_word` instead
Nov 29 17:21:33.062 INFO [stderr]    |
Nov 29 17:21:33.062 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 17:21:33.062 INFO [stderr] 
Nov 29 17:21:33.062 INFO [stderr] warning: variable does not need to be mutable
Nov 29 17:21:33.062 INFO [stderr]   --> src/main.rs:26:9
Nov 29 17:21:33.062 INFO [stderr]    |
Nov 29 17:21:33.062 INFO [stderr] 26 |     let mut x = String::from("Conor Kennedy");
Nov 29 17:21:33.062 INFO [stderr]    |         ----^
Nov 29 17:21:33.062 INFO [stderr]    |         |
Nov 29 17:21:33.062 INFO [stderr]    |         help: remove this `mut`
Nov 29 17:21:33.062 INFO [stderr]    |
Nov 29 17:21:33.062 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 17:21:33.062 INFO [stderr] 
Nov 29 17:21:33.160 INFO [stderr] warning: unused variable: `word`
Nov 29 17:21:33.160 INFO [stderr]   --> src/main.rs:28:9
Nov 29 17:21:33.160 INFO [stderr]    |
Nov 29 17:21:33.160 INFO [stderr] 28 |     let word = first_word(&x);
Nov 29 17:21:33.160 INFO [stderr]    |         ^^^^ help: consider using `_word` instead
Nov 29 17:21:33.160 INFO [stderr]    |
Nov 29 17:21:33.160 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 17:21:33.160 INFO [stderr] 
Nov 29 17:21:33.168 INFO [stderr] warning: variable does not need to be mutable
Nov 29 17:21:33.168 INFO [stderr]   --> src/main.rs:26:9
Nov 29 17:21:33.168 INFO [stderr]    |
Nov 29 17:21:33.168 INFO [stderr] 26 |     let mut x = String::from("Conor Kennedy");
Nov 29 17:21:33.168 INFO [stderr]    |         ----^
Nov 29 17:21:33.168 INFO [stderr]    |         |
Nov 29 17:21:33.168 INFO [stderr]    |         help: remove this `mut`
Nov 29 17:21:33.168 INFO [stderr]    |
Nov 29 17:21:33.168 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 17:21:33.168 INFO [stderr] 
Nov 29 17:21:33.212 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
Nov 29 17:21:33.212 INFO [stderr] su: No module specific data is present
Nov 29 17:21:33.924 INFO running `"docker" "inspect" "dfce4e4fb20b1c5a57a436d70d56a0c7fa4b35352578fd10fee947cb4d1bdd70"`
Nov 29 17:21:34.302 INFO running `"docker" "rm" "-f" "dfce4e4fb20b1c5a57a436d70d56a0c7fa4b35352578fd10fee947cb4d1bdd70"`
Nov 29 17:21:34.560 INFO [stdout] dfce4e4fb20b1c5a57a436d70d56a0c7fa4b35352578fd10fee947cb4d1bdd70