[INFO] crate sandpile 0.1.0 is already in cache
[INFO] extracting crate sandpile 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/sandpile/0.1.0
[INFO] extracting crate sandpile 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/sandpile/0.1.0
[INFO] validating manifest of sandpile-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 sandpile-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 sandpile-0.1.0
[INFO] finished frobbing sandpile-0.1.0
[INFO] frobbed toml for sandpile-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/sandpile/0.1.0/Cargo.toml
[INFO] started frobbing sandpile-0.1.0
[INFO] finished frobbing sandpile-0.1.0
[INFO] frobbed toml for sandpile-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/sandpile/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 sandpile-0.1.0 against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/sandpile/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 -Dclippy::into_iter_on_array" "-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] 800a16be595648f0c62957929537f232edaf9e51a21149577b006d189a300cda
[INFO] running `"docker" "start" "-a" "800a16be595648f0c62957929537f232edaf9e51a21149577b006d189a300cda"`
[INFO] [stderr]     Checking sandpile v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/sandpile.rs:17:21
[INFO] [stderr]    |
[INFO] [stderr] 17 |                     rows: rows,
[INFO] [stderr]    |                     ^^^^^^^^^^ help: replace it with: `rows`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/sandpile.rs:18:21
[INFO] [stderr]    |
[INFO] [stderr] 18 |                     cols: cols,
[INFO] [stderr]    |                     ^^^^^^^^^^ help: replace it with: `cols`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/sandpile.rs:36:25
[INFO] [stderr]    |
[INFO] [stderr] 36 |                         rows: rows,
[INFO] [stderr]    |                         ^^^^^^^^^^ help: replace it with: `rows`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/sandpile.rs:37:25
[INFO] [stderr]    |
[INFO] [stderr] 37 |                         cols: cols,
[INFO] [stderr]    |                         ^^^^^^^^^^ help: replace it with: `cols`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/sandpile.rs:162:13
[INFO] [stderr]     |
[INFO] [stderr] 162 |             write!(f, "\n").unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::write_with_newline)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/sandpile.rs:17:21
[INFO] [stderr]    |
[INFO] [stderr] 17 |                     rows: rows,
[INFO] [stderr]    |                     ^^^^^^^^^^ help: replace it with: `rows`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/sandpile.rs:18:21
[INFO] [stderr]    |
[INFO] [stderr] 18 |                     cols: cols,
[INFO] [stderr]    |                     ^^^^^^^^^^ help: replace it with: `cols`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/sandpile.rs:36:25
[INFO] [stderr]    |
[INFO] [stderr] 36 |                         rows: rows,
[INFO] [stderr]    |                         ^^^^^^^^^^ help: replace it with: `rows`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/sandpile.rs:37:25
[INFO] [stderr]    |
[INFO] [stderr] 37 |                         cols: cols,
[INFO] [stderr]    |                         ^^^^^^^^^^ help: replace it with: `cols`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/sandpile.rs:162:13
[INFO] [stderr]     |
[INFO] [stderr] 162 |             write!(f, "\n").unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::write_with_newline)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `temp_data`.
[INFO] [stderr]   --> src/sandpile.rs:28:30
[INFO] [stderr]    |
[INFO] [stderr] 28 |                     for i in 0..rows as usize {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 28 |                     for <item> in temp_data.iter_mut().take(rows as usize) {
[INFO] [stderr]    |                         ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this if-then-else expression returns a bool literal
[INFO] [stderr]   --> src/sandpile.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 | /         if self.rows == other.rows && self.cols == other.cols {
[INFO] [stderr] 61 | |             true
[INFO] [stderr] 62 | |         } else {
[INFO] [stderr] 63 | |             false
[INFO] [stderr] 64 | |         }
[INFO] [stderr]    | |_________^ help: you can reduce it to: `self.rows == other.rows && self.cols == other.cols`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_bool)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_bool
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/sandpile.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |             self.data[i][j] = self.data[i][j] - 4;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.data[i][j] -= 4`
[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: the loop variable `i` is only used to index `temp_data`.
[INFO] [stderr]   --> src/sandpile.rs:28:30
[INFO] [stderr]    |
[INFO] [stderr] 28 |                     for i in 0..rows as usize {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 28 |                     for <item> in temp_data.iter_mut().take(rows as usize) {
[INFO] [stderr]    |                         ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this if-then-else expression returns a bool literal
[INFO] [stderr]   --> src/sandpile.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 | /         if self.rows == other.rows && self.cols == other.cols {
[INFO] [stderr] 61 | |             true
[INFO] [stderr] 62 | |         } else {
[INFO] [stderr] 63 | |             false
[INFO] [stderr] 64 | |         }
[INFO] [stderr]    | |_________^ help: you can reduce it to: `self.rows == other.rows && self.cols == other.cols`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_bool)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_bool
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/sandpile.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |             self.data[i][j] = self.data[i][j] - 4;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.data[i][j] -= 4`
[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 0.80s
[INFO] running `"docker" "inspect" "800a16be595648f0c62957929537f232edaf9e51a21149577b006d189a300cda"`
[INFO] running `"docker" "rm" "-f" "800a16be595648f0c62957929537f232edaf9e51a21149577b006d189a300cda"`
[INFO] [stdout] 800a16be595648f0c62957929537f232edaf9e51a21149577b006d189a300cda