[INFO] crate jpng 0.1.0 is already in cache
[INFO] extracting crate jpng 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/jpng/0.1.0
[INFO] extracting crate jpng 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/jpng/0.1.0
[INFO] validating manifest of jpng-0.1.0 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 jpng-0.1.0 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 jpng-0.1.0
[INFO] finished frobbing jpng-0.1.0
[INFO] frobbed toml for jpng-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/jpng/0.1.0/Cargo.toml
[INFO] started frobbing jpng-0.1.0
[INFO] finished frobbing jpng-0.1.0
[INFO] frobbed toml for jpng-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/jpng/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 jpng-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/jpng/0.1.0:/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] 416d6135d11bd1576e1bfa5464e13eedd6fc2cab64752d4ae2ebbd6f1d1669e0
[INFO] running `"docker" "start" "-a" "416d6135d11bd1576e1bfa5464e13eedd6fc2cab64752d4ae2ebbd6f1d1669e0"`
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking jpng v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/footer.rs:19:30
[INFO] [stderr]    |
[INFO] [stderr] 19 | const JPNG_IDENTIFIER: u32 = 0x4A504E47;
[INFO] [stderr]    |                              ^^^^^^^^^^ help: consider: `0x4A50_4E47`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/footer.rs:19:30
[INFO] [stderr]    |
[INFO] [stderr] 19 | const JPNG_IDENTIFIER: u32 = 0x4A504E47;
[INFO] [stderr]    |                              ^^^^^^^^^^ help: consider: `0x4A50_4E47`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]   --> src/lib.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 | /         self.image
[INFO] [stderr] 69 | |             .to_rgba()
[INFO] [stderr] 70 | |             .enumerate_pixels()
[INFO] [stderr] 71 | |             .zip(luma.pixels())
[INFO] [stderr] ...  |
[INFO] [stderr] 76 | |                     });
[INFO] [stderr] 77 | |             }).collect::<()>();
[INFO] [stderr]    | |_______________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr] warning: you are collect()ing an iterator and throwing away the result. Consider using an explicit for loop to exhaust the iterator
[INFO] [stderr]   --> src/lib.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 | /         self.image
[INFO] [stderr] 69 | |             .to_rgba()
[INFO] [stderr] 70 | |             .enumerate_pixels()
[INFO] [stderr] 71 | |             .zip(luma.pixels())
[INFO] [stderr] ...  |
[INFO] [stderr] 76 | |                     });
[INFO] [stderr] 77 | |             }).collect::<()>();
[INFO] [stderr]    | |______________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_collect)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_collect
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]   --> src/lib.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 | /         self.image
[INFO] [stderr] 69 | |             .to_rgba()
[INFO] [stderr] 70 | |             .enumerate_pixels()
[INFO] [stderr] 71 | |             .zip(luma.pixels())
[INFO] [stderr] ...  |
[INFO] [stderr] 76 | |                     });
[INFO] [stderr] 77 | |             }).collect::<()>();
[INFO] [stderr]    | |_______________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr] warning: you are collect()ing an iterator and throwing away the result. Consider using an explicit for loop to exhaust the iterator
[INFO] [stderr]   --> src/lib.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 | /         self.image
[INFO] [stderr] 69 | |             .to_rgba()
[INFO] [stderr] 70 | |             .enumerate_pixels()
[INFO] [stderr] 71 | |             .zip(luma.pixels())
[INFO] [stderr] ...  |
[INFO] [stderr] 76 | |                     });
[INFO] [stderr] 77 | |             }).collect::<()>();
[INFO] [stderr]    | |______________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_collect)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_collect
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.17s
[INFO] running `"docker" "inspect" "416d6135d11bd1576e1bfa5464e13eedd6fc2cab64752d4ae2ebbd6f1d1669e0"`
[INFO] running `"docker" "rm" "-f" "416d6135d11bd1576e1bfa5464e13eedd6fc2cab64752d4ae2ebbd6f1d1669e0"`
[INFO] [stdout] 416d6135d11bd1576e1bfa5464e13eedd6fc2cab64752d4ae2ebbd6f1d1669e0