Dec 19 04:37:16.204 INFO checking zhangaz1/TheRustProgrammingLanguageBookExamples against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 04:37:16.205 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/zhangaz1/TheRustProgrammingLanguageBookExamples:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 04:37:16.640 INFO [stdout] 9f05e08bd95238eb5e65580a7fad6c04e8e050b3c65ddbed05dacf9c21ba48f9
Dec 19 04:37:16.642 INFO running `"docker" "start" "-a" "9f05e08bd95238eb5e65580a7fad6c04e8e050b3c65ddbed05dacf9c21ba48f9"`
Dec 19 04:37:18.876 INFO [stderr]     Checking TheRustProgrammingLanguageBookExamples v0.1.0 (/opt/crater/workdir)
Dec 19 04:37:19.168 INFO [stderr] warning: unused variable: `y`
Dec 19 04:37:19.168 INFO [stderr]  --> src/main.rs:5:13
Dec 19 04:37:19.168 INFO [stderr]   |
Dec 19 04:37:19.168 INFO [stderr] 5 |         let y = &x[0];
Dec 19 04:37:19.168 INFO [stderr]   |             ^ help: consider using `_y` instead
Dec 19 04:37:19.168 INFO [stderr]   |
Dec 19 04:37:19.168 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 19 04:37:19.168 INFO [stderr] 
Dec 19 04:37:19.184 INFO [stderr] warning: crate `TheRustProgrammingLanguageBookExamples` should have a snake case name such as `the_rust_programming_language_book_examples`
Dec 19 04:37:19.184 INFO [stderr]   |
Dec 19 04:37:19.184 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 19 04:37:19.184 INFO [stderr] 
Dec 19 04:37:19.196 INFO [stderr] warning: unused variable: `y`
Dec 19 04:37:19.196 INFO [stderr]  --> src/main.rs:5:13
Dec 19 04:37:19.196 INFO [stderr]   |
Dec 19 04:37:19.196 INFO [stderr] 5 |         let y = &x[0];
Dec 19 04:37:19.196 INFO [stderr]   |             ^ help: consider using `_y` instead
Dec 19 04:37:19.196 INFO [stderr]   |
Dec 19 04:37:19.196 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 19 04:37:19.196 INFO [stderr] 
Dec 19 04:37:19.196 INFO [stderr] warning: crate `TheRustProgrammingLanguageBookExamples` should have a snake case name such as `the_rust_programming_language_book_examples`
Dec 19 04:37:19.196 INFO [stderr]   |
Dec 19 04:37:19.196 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 19 04:37:19.196 INFO [stderr] 
Dec 19 04:37:19.272 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
Dec 19 04:37:20.424 INFO running `"docker" "inspect" "9f05e08bd95238eb5e65580a7fad6c04e8e050b3c65ddbed05dacf9c21ba48f9"`
Dec 19 04:37:20.804 INFO running `"docker" "rm" "-f" "9f05e08bd95238eb5e65580a7fad6c04e8e050b3c65ddbed05dacf9c21ba48f9"`
Dec 19 04:37:21.084 INFO [stdout] 9f05e08bd95238eb5e65580a7fad6c04e8e050b3c65ddbed05dacf9c21ba48f9