Nov 29 17:21:31.209 INFO checking suelz/chapter_4 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 29 17:21:31.210 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-3/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 17:21:31.684 INFO [stdout] dd598c3467cc6c404305d2b60236234d3bb5e448b1425de8038db68d07fe1d3c
Nov 29 17:21:31.690 INFO running `"docker" "start" "-a" "dd598c3467cc6c404305d2b60236234d3bb5e448b1425de8038db68d07fe1d3c"`
Nov 29 17:21:32.836 INFO [stderr] usermod: no changes
Nov 29 17:21:32.912 INFO [stderr]     Checking ch4 v0.1.0 (/source)
Nov 29 17:21:33.144 INFO [stderr] warning: unused variable: `word`
Nov 29 17:21:33.144 INFO [stderr]   --> src/main.rs:28:9
Nov 29 17:21:33.144 INFO [stderr]    |
Nov 29 17:21:33.144 INFO [stderr] 28 |     let word = first_word(&x);
Nov 29 17:21:33.144 INFO [stderr]    |         ^^^^ help: consider using `_word` instead
Nov 29 17:21:33.144 INFO [stderr]    |
Nov 29 17:21:33.144 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 17:21:33.144 INFO [stderr] 
Nov 29 17:21:33.148 INFO [stderr] warning: variable does not need to be mutable
Nov 29 17:21:33.148 INFO [stderr]   --> src/main.rs:26:9
Nov 29 17:21:33.148 INFO [stderr]    |
Nov 29 17:21:33.148 INFO [stderr] 26 |     let mut x = String::from("Conor Kennedy");
Nov 29 17:21:33.148 INFO [stderr]    |         ----^
Nov 29 17:21:33.152 INFO [stderr]    |         |
Nov 29 17:21:33.152 INFO [stderr]    |         help: remove this `mut`
Nov 29 17:21:33.152 INFO [stderr]    |
Nov 29 17:21:33.152 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 17:21:33.152 INFO [stderr] 
Nov 29 17:21:33.244 INFO [stderr] warning: unused variable: `word`
Nov 29 17:21:33.244 INFO [stderr]   --> src/main.rs:28:9
Nov 29 17:21:33.244 INFO [stderr]    |
Nov 29 17:21:33.244 INFO [stderr] 28 |     let word = first_word(&x);
Nov 29 17:21:33.244 INFO [stderr]    |         ^^^^ help: consider using `_word` instead
Nov 29 17:21:33.244 INFO [stderr]    |
Nov 29 17:21:33.244 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 17:21:33.244 INFO [stderr] 
Nov 29 17:21:33.248 INFO [stderr] warning: variable does not need to be mutable
Nov 29 17:21:33.248 INFO [stderr]   --> src/main.rs:26:9
Nov 29 17:21:33.248 INFO [stderr]    |
Nov 29 17:21:33.248 INFO [stderr] 26 |     let mut x = String::from("Conor Kennedy");
Nov 29 17:21:33.248 INFO [stderr]    |         ----^
Nov 29 17:21:33.248 INFO [stderr]    |         |
Nov 29 17:21:33.248 INFO [stderr]    |         help: remove this `mut`
Nov 29 17:21:33.248 INFO [stderr]    |
Nov 29 17:21:33.248 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 17:21:33.248 INFO [stderr] 
Nov 29 17:21:33.283 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
Nov 29 17:21:33.288 INFO [stderr] su: No module specific data is present
Nov 29 17:21:33.944 INFO running `"docker" "inspect" "dd598c3467cc6c404305d2b60236234d3bb5e448b1425de8038db68d07fe1d3c"`
Nov 29 17:21:34.243 INFO running `"docker" "rm" "-f" "dd598c3467cc6c404305d2b60236234d3bb5e448b1425de8038db68d07fe1d3c"`
Nov 29 17:21:34.604 INFO [stdout] dd598c3467cc6c404305d2b60236234d3bb5e448b1425de8038db68d07fe1d3c