[INFO] updating cached repository RustExamples/understand_ownership [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/RustExamples/understand_ownership [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/RustExamples/understand_ownership" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/RustExamples/understand_ownership"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/RustExamples/understand_ownership'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/RustExamples/understand_ownership" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/RustExamples/understand_ownership"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/RustExamples/understand_ownership'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e129a09715d80aababea59e9878dec5062aa98b6 [INFO] sha for GitHub repo RustExamples/understand_ownership: e129a09715d80aababea59e9878dec5062aa98b6 [INFO] validating manifest of RustExamples/understand_ownership on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of RustExamples/understand_ownership on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing RustExamples/understand_ownership [INFO] finished frobbing RustExamples/understand_ownership [INFO] frobbed toml for RustExamples/understand_ownership written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/RustExamples/understand_ownership/Cargo.toml [INFO] started frobbing RustExamples/understand_ownership [INFO] finished frobbing RustExamples/understand_ownership [INFO] frobbed toml for RustExamples/understand_ownership written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/RustExamples/understand_ownership/Cargo.toml [INFO] crate RustExamples/understand_ownership already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking RustExamples/understand_ownership against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-5/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/RustExamples/understand_ownership:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] f9a900aa48bd2fec335f7944f82e91c67171c3be587d5f64a3a1f7c4f8b6b528 [INFO] running `"docker" "start" "-a" "f9a900aa48bd2fec335f7944f82e91c67171c3be587d5f64a3a1f7c4f8b6b528"` [INFO] [stderr] Checking understand_ownership v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `word` [INFO] [stderr] --> src/main.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | let word = first_word(&s); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_word` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `word` [INFO] [stderr] --> src/main.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let word = first_word(&s[..5]); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_word` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `word` [INFO] [stderr] --> src/main.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | let word = first_word(literal); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_word` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `word` [INFO] [stderr] --> src/main.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let word = first_word(&literal[..5]); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_word` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `word` [INFO] [stderr] --> src/main.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | let word = first_word(&s); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_word` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `word` [INFO] [stderr] --> src/main.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let word = first_word(&s[..5]); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_word` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `word` [INFO] [stderr] --> src/main.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | let word = first_word(literal); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_word` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `word` [INFO] [stderr] --> src/main.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let word = first_word(&literal[..5]); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_word` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.32s [INFO] running `"docker" "inspect" "f9a900aa48bd2fec335f7944f82e91c67171c3be587d5f64a3a1f7c4f8b6b528"` [INFO] running `"docker" "rm" "-f" "f9a900aa48bd2fec335f7944f82e91c67171c3be587d5f64a3a1f7c4f8b6b528"` [INFO] [stdout] f9a900aa48bd2fec335f7944f82e91c67171c3be587d5f64a3a1f7c4f8b6b528