Dec 04 06:06:56.340 INFO checking zhangaz1/TheRustProgrammingLanguageBookExamples against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 06:06:56.340 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 04 06:06:56.887 INFO [stdout] a9608e255d5529e97bc521c034ea0f4afbcac38378f366205dc5248a1a33d43d
Dec 04 06:06:56.889 INFO running `"docker" "start" "-a" "a9608e255d5529e97bc521c034ea0f4afbcac38378f366205dc5248a1a33d43d"`
Dec 04 06:06:58.270 INFO [stderr] usermod: no changes
Dec 04 06:06:58.332 INFO [stderr]     Checking TheRustProgrammingLanguageBookExamples v0.1.0 (/source)
Dec 04 06:06:58.526 INFO [stderr] warning: unused variable: `y`
Dec 04 06:06:58.526 INFO [stderr]  --> src/main.rs:5:13
Dec 04 06:06:58.526 INFO [stderr]   |
Dec 04 06:06:58.526 INFO [stderr] 5 |         let y = &x[0];
Dec 04 06:06:58.526 INFO [stderr]   |             ^ help: consider using `_y` instead
Dec 04 06:06:58.526 INFO [stderr]   |
Dec 04 06:06:58.526 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 04 06:06:58.526 INFO [stderr] 
Dec 04 06:06:58.526 INFO [stderr] warning: crate `TheRustProgrammingLanguageBookExamples` should have a snake case name such as `the_rust_programming_language_book_examples`
Dec 04 06:06:58.526 INFO [stderr]   |
Dec 04 06:06:58.526 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 04 06:06:58.526 INFO [stderr] 
Dec 04 06:06:58.655 INFO [stderr] warning: unused variable: `y`
Dec 04 06:06:58.655 INFO [stderr]  --> src/main.rs:5:13
Dec 04 06:06:58.655 INFO [stderr]   |
Dec 04 06:06:58.655 INFO [stderr] 5 |         let y = &x[0];
Dec 04 06:06:58.655 INFO [stderr]   |             ^ help: consider using `_y` instead
Dec 04 06:06:58.655 INFO [stderr]   |
Dec 04 06:06:58.655 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 04 06:06:58.655 INFO [stderr] 
Dec 04 06:06:58.655 INFO [stderr] warning: crate `TheRustProgrammingLanguageBookExamples` should have a snake case name such as `the_rust_programming_language_book_examples`
Dec 04 06:06:58.655 INFO [stderr]   |
Dec 04 06:06:58.655 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 04 06:06:58.655 INFO [stderr] 
Dec 04 06:06:58.718 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
Dec 04 06:06:58.727 INFO [stderr] su: No module specific data is present
Dec 04 06:07:00.199 INFO running `"docker" "inspect" "a9608e255d5529e97bc521c034ea0f4afbcac38378f366205dc5248a1a33d43d"`
Dec 04 06:07:00.497 INFO running `"docker" "rm" "-f" "a9608e255d5529e97bc521c034ea0f4afbcac38378f366205dc5248a1a33d43d"`
Dec 04 06:07:00.775 INFO [stdout] a9608e255d5529e97bc521c034ea0f4afbcac38378f366205dc5248a1a33d43d