[INFO] updating cached repository zhangaz1/TheRustProgrammingLanguageBookExamples
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zhangaz1/TheRustProgrammingLanguageBookExamples
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zhangaz1/TheRustProgrammingLanguageBookExamples" "work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/zhangaz1/TheRustProgrammingLanguageBookExamples"`
[INFO] [stderr] Cloning into 'work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/zhangaz1/TheRustProgrammingLanguageBookExamples'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zhangaz1/TheRustProgrammingLanguageBookExamples" "work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/zhangaz1/TheRustProgrammingLanguageBookExamples"`
[INFO] [stderr] Cloning into 'work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/zhangaz1/TheRustProgrammingLanguageBookExamples'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e201eb3f6b6dc3622e535f5ae1a33ae2e06267f6
[INFO] sha for GitHub repo zhangaz1/TheRustProgrammingLanguageBookExamples: e201eb3f6b6dc3622e535f5ae1a33ae2e06267f6
[INFO] validating manifest of zhangaz1/TheRustProgrammingLanguageBookExamples on toolchain master#6ecad338381cc3b8d56e2df22e5971a598eddd6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of zhangaz1/TheRustProgrammingLanguageBookExamples on toolchain try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing zhangaz1/TheRustProgrammingLanguageBookExamples
[INFO] finished frobbing zhangaz1/TheRustProgrammingLanguageBookExamples
[INFO] frobbed toml for zhangaz1/TheRustProgrammingLanguageBookExamples written to work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/zhangaz1/TheRustProgrammingLanguageBookExamples/Cargo.toml
[INFO] started frobbing zhangaz1/TheRustProgrammingLanguageBookExamples
[INFO] finished frobbing zhangaz1/TheRustProgrammingLanguageBookExamples
[INFO] frobbed toml for zhangaz1/TheRustProgrammingLanguageBookExamples written to work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/zhangaz1/TheRustProgrammingLanguageBookExamples/Cargo.toml
[INFO] crate zhangaz1/TheRustProgrammingLanguageBookExamples has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking zhangaz1/TheRustProgrammingLanguageBookExamples against master#6ecad338381cc3b8d56e2df22e5971a598eddd6c for pr-57501
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57501/worker-0/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/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" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 91086ae9e7cda7171731c600f84fa5dd927e19024080cb34c481a6a2e6f5f631
[INFO] running `"docker" "start" "-a" "91086ae9e7cda7171731c600f84fa5dd927e19024080cb34c481a6a2e6f5f631"`
[INFO] [stderr]     Checking TheRustProgrammingLanguageBookExamples v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]  --> src/main.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 |         let y = &x[0];
[INFO] [stderr]   |             ^ help: consider using `_y` instead
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `TheRustProgrammingLanguageBookExamples` should have a snake case name such as `the_rust_programming_language_book_examples`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]  --> src/main.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 |         let y = &x[0];
[INFO] [stderr]   |             ^ help: consider using `_y` instead
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `TheRustProgrammingLanguageBookExamples` should have a snake case name such as `the_rust_programming_language_book_examples`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "91086ae9e7cda7171731c600f84fa5dd927e19024080cb34c481a6a2e6f5f631"`
[INFO] running `"docker" "rm" "-f" "91086ae9e7cda7171731c600f84fa5dd927e19024080cb34c481a6a2e6f5f631"`
[INFO] [stdout] 91086ae9e7cda7171731c600f84fa5dd927e19024080cb34c481a6a2e6f5f631