Dec 11 05:08:43.359 INFO checking zhangaz1/TheRustProgrammingLanguageBookExamples against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 05:08:43.359 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 05:08:43.860 INFO [stdout] 78965c88464536e76c99ce877be14dcaa8b00c7f9d6bef9bfd563b66ffd4270b
Dec 11 05:08:43.864 INFO running `"docker" "start" "-a" "78965c88464536e76c99ce877be14dcaa8b00c7f9d6bef9bfd563b66ffd4270b"`
Dec 11 05:08:46.080 INFO [stderr] usermod: no changes
Dec 11 05:08:46.140 INFO [stderr]     Checking TheRustProgrammingLanguageBookExamples v0.1.0 (/source)
Dec 11 05:08:46.312 INFO [stderr] warning: unused variable: `y`
Dec 11 05:08:46.344 INFO [stderr]  --> src/main.rs:5:13
Dec 11 05:08:46.344 INFO [stderr]   |
Dec 11 05:08:46.344 INFO [stderr] 5 |         let y = &x[0];
Dec 11 05:08:46.344 INFO [stderr]   |             ^ help: consider using `_y` instead
Dec 11 05:08:46.344 INFO [stderr]   |
Dec 11 05:08:46.344 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 11 05:08:46.344 INFO [stderr] 
Dec 11 05:08:46.344 INFO [stderr] warning: crate `TheRustProgrammingLanguageBookExamples` should have a snake case name such as `the_rust_programming_language_book_examples`
Dec 11 05:08:46.344 INFO [stderr]   |
Dec 11 05:08:46.344 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 11 05:08:46.344 INFO [stderr] 
Dec 11 05:08:46.440 INFO [stderr] warning: unused variable: `y`
Dec 11 05:08:46.440 INFO [stderr]  --> src/main.rs:5:13
Dec 11 05:08:46.440 INFO [stderr]   |
Dec 11 05:08:46.440 INFO [stderr] 5 |         let y = &x[0];
Dec 11 05:08:46.440 INFO [stderr]   |             ^ help: consider using `_y` instead
Dec 11 05:08:46.440 INFO [stderr]   |
Dec 11 05:08:46.440 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 11 05:08:46.440 INFO [stderr] 
Dec 11 05:08:46.458 INFO [stderr] warning: crate `TheRustProgrammingLanguageBookExamples` should have a snake case name such as `the_rust_programming_language_book_examples`
Dec 11 05:08:46.458 INFO [stderr]   |
Dec 11 05:08:46.458 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 11 05:08:46.458 INFO [stderr] 
Dec 11 05:08:46.484 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
Dec 11 05:08:46.497 INFO [stderr] su: No module specific data is present
Dec 11 05:08:47.542 INFO running `"docker" "inspect" "78965c88464536e76c99ce877be14dcaa8b00c7f9d6bef9bfd563b66ffd4270b"`
Dec 11 05:08:47.872 INFO running `"docker" "rm" "-f" "78965c88464536e76c99ce877be14dcaa8b00c7f9d6bef9bfd563b66ffd4270b"`
Dec 11 05:08:48.236 INFO [stdout] 78965c88464536e76c99ce877be14dcaa8b00c7f9d6bef9bfd563b66ffd4270b