[INFO] cloning repository RustExamples/understand_ownership
[INFO] running `"git" "clone" "--bare" "git://github.com/RustExamples/understand_ownership.git" "work/cache/sources/gh/RustExamples/understand_ownership"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/RustExamples/understand_ownership'...
[INFO] running `"git" "clone" "work/cache/sources/gh/RustExamples/understand_ownership" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/RustExamples/understand_ownership"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/RustExamples/understand_ownership'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RustExamples/understand_ownership" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/RustExamples/understand_ownership"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/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#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of RustExamples/understand_ownership on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-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-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing RustExamples/understand_ownership against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] cd12cbe8fdd8d61d76cafa64d16ef9938d6fd6ee02bc935942e65c176fd50444
[INFO] running `"docker" "start" "-a" "cd12cbe8fdd8d61d76cafa64d16ef9938d6fd6ee02bc935942e65c176fd50444"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "cd12cbe8fdd8d61d76cafa64d16ef9938d6fd6ee02bc935942e65c176fd50444"`
[INFO] running `"docker" "rm" "-f" "cd12cbe8fdd8d61d76cafa64d16ef9938d6fd6ee02bc935942e65c176fd50444"`
[INFO] [stdout] cd12cbe8fdd8d61d76cafa64d16ef9938d6fd6ee02bc935942e65c176fd50444
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 90512503c3065b19c1c5ac89d6b67c2a2652796358f5b3b3fd97e28817d85284
[INFO] running `"docker" "start" "-a" "90512503c3065b19c1c5ac89d6b67c2a2652796358f5b3b3fd97e28817d85284"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "90512503c3065b19c1c5ac89d6b67c2a2652796358f5b3b3fd97e28817d85284"`
[INFO] running `"docker" "rm" "-f" "90512503c3065b19c1c5ac89d6b67c2a2652796358f5b3b3fd97e28817d85284"`
[INFO] [stdout] 90512503c3065b19c1c5ac89d6b67c2a2652796358f5b3b3fd97e28817d85284
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"`
[INFO] [stdout] 7ed230dca04b207a11b9e807d77ba118dd8755ce04554de0b080d16c87e81e16
[INFO] running `"docker" "start" "-a" "7ed230dca04b207a11b9e807d77ba118dd8755ce04554de0b080d16c87e81e16"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/understand_ownership-08945704abdefae5
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7ed230dca04b207a11b9e807d77ba118dd8755ce04554de0b080d16c87e81e16"`
[INFO] running `"docker" "rm" "-f" "7ed230dca04b207a11b9e807d77ba118dd8755ce04554de0b080d16c87e81e16"`
[INFO] [stdout] 7ed230dca04b207a11b9e807d77ba118dd8755ce04554de0b080d16c87e81e16