[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-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/zhangaz1/TheRustProgrammingLanguageBookExamples"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/zhangaz1/TheRustProgrammingLanguageBookExamples'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zhangaz1/TheRustProgrammingLanguageBookExamples" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/zhangaz1/TheRustProgrammingLanguageBookExamples"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/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#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of zhangaz1/TheRustProgrammingLanguageBookExamples on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-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-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/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-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/zhangaz1/TheRustProgrammingLanguageBookExamples/Cargo.toml
[INFO] crate zhangaz1/TheRustProgrammingLanguageBookExamples already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking zhangaz1/TheRustProgrammingLanguageBookExamples against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-7/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/zhangaz1/TheRustProgrammingLanguageBookExamples:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6c1724a3e413649b480c875f20d91f19b05a721eead3479c64b89efc55bde239
[INFO] running `"docker" "start" "-a" "6c1724a3e413649b480c875f20d91f19b05a721eead3479c64b89efc55bde239"`
[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 prefixing with an underscore: `_y`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `TheRustProgrammingLanguageBookExamples` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `the_rust_programming_language_book_examples`
[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 prefixing with an underscore: `_y`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `TheRustProgrammingLanguageBookExamples` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `the_rust_programming_language_book_examples`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `"docker" "inspect" "6c1724a3e413649b480c875f20d91f19b05a721eead3479c64b89efc55bde239"`
[INFO] running `"docker" "rm" "-f" "6c1724a3e413649b480c875f20d91f19b05a721eead3479c64b89efc55bde239"`
[INFO] [stdout] 6c1724a3e413649b480c875f20d91f19b05a721eead3479c64b89efc55bde239