[INFO] updating cached repository fundphys/Serpinsky
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fundphys/Serpinsky
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fundphys/Serpinsky" "work/ex/clippy-test-run/sources/stable/gh/fundphys/Serpinsky"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/fundphys/Serpinsky'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fundphys/Serpinsky" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/fundphys/Serpinsky"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/fundphys/Serpinsky'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 92f51b4e24c22d78b6f9bedf36adbb9868ad561e
[INFO] sha for GitHub repo fundphys/Serpinsky: 92f51b4e24c22d78b6f9bedf36adbb9868ad561e
[INFO] validating manifest of fundphys/Serpinsky on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fundphys/Serpinsky on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fundphys/Serpinsky
[INFO] finished frobbing fundphys/Serpinsky
[INFO] frobbed toml for fundphys/Serpinsky written to work/ex/clippy-test-run/sources/stable/gh/fundphys/Serpinsky/Cargo.toml
[INFO] started frobbing fundphys/Serpinsky
[INFO] finished frobbing fundphys/Serpinsky
[INFO] frobbed toml for fundphys/Serpinsky written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/fundphys/Serpinsky/Cargo.toml
[INFO] crate fundphys/Serpinsky has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting fundphys/Serpinsky against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/fundphys/Serpinsky:/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b484de71768d27c60cb0229c4c88ccea42d765b56b00eeae7c40f17e4174bc76
[INFO] running `"docker" "start" "-a" "b484de71768d27c60cb0229c4c88ccea42d765b56b00eeae7c40f17e4174bc76"`
[INFO] [stderr]    Compiling syn v0.13.9
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling num-derive v0.2.1
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking serpinsky v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         cnt = cnt - 1;
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: replace it with: `cnt -= 1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         cnt = cnt - 1;
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: replace it with: `cnt -= 1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.93s
[INFO] running `"docker" "inspect" "b484de71768d27c60cb0229c4c88ccea42d765b56b00eeae7c40f17e4174bc76"`
[INFO] running `"docker" "rm" "-f" "b484de71768d27c60cb0229c4c88ccea42d765b56b00eeae7c40f17e4174bc76"`
[INFO] [stdout] b484de71768d27c60cb0229c4c88ccea42d765b56b00eeae7c40f17e4174bc76