[INFO] updating cached repository emgyrz/rl_mandelbrot
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/emgyrz/rl_mandelbrot
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/emgyrz/rl_mandelbrot" "work/ex/clippy-test-run/sources/stable/gh/emgyrz/rl_mandelbrot"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/emgyrz/rl_mandelbrot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/emgyrz/rl_mandelbrot" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/emgyrz/rl_mandelbrot"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/emgyrz/rl_mandelbrot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 09f391b487ded96b5c4504add4bbf0838cd5d551
[INFO] sha for GitHub repo emgyrz/rl_mandelbrot: 09f391b487ded96b5c4504add4bbf0838cd5d551
[INFO] validating manifest of emgyrz/rl_mandelbrot 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 emgyrz/rl_mandelbrot 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 emgyrz/rl_mandelbrot
[INFO] finished frobbing emgyrz/rl_mandelbrot
[INFO] frobbed toml for emgyrz/rl_mandelbrot written to work/ex/clippy-test-run/sources/stable/gh/emgyrz/rl_mandelbrot/Cargo.toml
[INFO] started frobbing emgyrz/rl_mandelbrot
[INFO] finished frobbing emgyrz/rl_mandelbrot
[INFO] frobbed toml for emgyrz/rl_mandelbrot written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/emgyrz/rl_mandelbrot/Cargo.toml
[INFO] crate emgyrz/rl_mandelbrot 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 emgyrz/rl_mandelbrot against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/emgyrz/rl_mandelbrot:/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] 8a8eecd01033a8c00bd91d4f8963a55ec810c8799abceed85852929eb4e8aa8c
[INFO] running `"docker" "start" "-a" "8a8eecd01033a8c00bd91d4f8963a55ec810c8799abceed85852929eb4e8aa8c"`
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]     Checking crossbeam v0.4.1
[INFO] [stderr]     Checking image v0.13.0
[INFO] [stderr]     Checking mandelbrot v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:151:9
[INFO] [stderr]     |
[INFO] [stderr] 151 |         writeln!(io::stderr(), "Неверный вызов комманды");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]    --> src/main.rs:152:9
[INFO] [stderr]     |
[INFO] [stderr] 152 | /         writeln!(
[INFO] [stderr] 153 | |             io::stderr(),
[INFO] [stderr] 154 | |             "пример: {} mandel.png 1000x750 -1.20,0.35 -1,0.20",
[INFO] [stderr] 155 | |             args[0]
[INFO] [stderr] 156 | |         ).unwrap();
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::explicit_write)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_write
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:151:9
[INFO] [stderr]     |
[INFO] [stderr] 151 |         writeln!(io::stderr(), "Неверный вызов комманды");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]    --> src/main.rs:152:9
[INFO] [stderr]     |
[INFO] [stderr] 152 | /         writeln!(
[INFO] [stderr] 153 | |             io::stderr(),
[INFO] [stderr] 154 | |             "пример: {} mandel.png 1000x750 -1.20,0.35 -1,0.20",
[INFO] [stderr] 155 | |             args[0]
[INFO] [stderr] 156 | |         ).unwrap();
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::explicit_write)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_write
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.69s
[INFO] running `"docker" "inspect" "8a8eecd01033a8c00bd91d4f8963a55ec810c8799abceed85852929eb4e8aa8c"`
[INFO] running `"docker" "rm" "-f" "8a8eecd01033a8c00bd91d4f8963a55ec810c8799abceed85852929eb4e8aa8c"`
[INFO] [stdout] 8a8eecd01033a8c00bd91d4f8963a55ec810c8799abceed85852929eb4e8aa8c