[INFO] updating cached repository AtomicMegaNerd/learning_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/AtomicMegaNerd/learning_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/AtomicMegaNerd/learning_rust" "work/ex/clippy-test-run/sources/stable/gh/AtomicMegaNerd/learning_rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/AtomicMegaNerd/learning_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AtomicMegaNerd/learning_rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/AtomicMegaNerd/learning_rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/AtomicMegaNerd/learning_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d273a33409bbaf55a0995a94fe86968009715868
[INFO] sha for GitHub repo AtomicMegaNerd/learning_rust: d273a33409bbaf55a0995a94fe86968009715868
[INFO] validating manifest of AtomicMegaNerd/learning_rust 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 AtomicMegaNerd/learning_rust 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 AtomicMegaNerd/learning_rust
[INFO] finished frobbing AtomicMegaNerd/learning_rust
[INFO] frobbed toml for AtomicMegaNerd/learning_rust written to work/ex/clippy-test-run/sources/stable/gh/AtomicMegaNerd/learning_rust/Cargo.toml
[INFO] started frobbing AtomicMegaNerd/learning_rust
[INFO] finished frobbing AtomicMegaNerd/learning_rust
[INFO] frobbed toml for AtomicMegaNerd/learning_rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/AtomicMegaNerd/learning_rust/Cargo.toml
[INFO] crate AtomicMegaNerd/learning_rust 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 AtomicMegaNerd/learning_rust 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/gh/AtomicMegaNerd/learning_rust:/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] e038a67a218fa598bd04be1c5bb42e541d65f453880f0d8fd28cd758d1feff00
[INFO] running `"docker" "start" "-a" "e038a67a218fa598bd04be1c5bb42e541d65f453880f0d8fd28cd758d1feff00"`
[INFO] [stderr]     Checking learning_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let b: &[i32] = &a;
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 6th binding whose name is just one char
[INFO] [stderr]   --> src/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let c = &a[0..4]; // From 0 up to (excluding) 4 ix
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let b: &[i32] = &a;
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 6th binding whose name is just one char
[INFO] [stderr]   --> src/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let c = &a[0..4]; // From 0 up to (excluding) 4 ix
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]  --> src/basics.rs:3:3
[INFO] [stderr]   |
[INFO] [stderr] 3 |   return a + b;
[INFO] [stderr]   |   ^^^^^^^^^^^^^ help: remove `return` as shown: `a + b`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]  --> src/basics.rs:3:3
[INFO] [stderr]   |
[INFO] [stderr] 3 |   return a + b;
[INFO] [stderr]   |   ^^^^^^^^^^^^^ help: remove `return` as shown: `a + b`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/control_flows.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 |       let list_type = match is_allowed {
[INFO] [stderr]    |  _____________________^
[INFO] [stderr] 15 | |         true => "Full",
[INFO] [stderr] 16 | |         false => "Restricted", // no default/ _ condition can be skipped
[INFO] [stderr] 17 | |                                // Because data type of is_allowed is boolean and all possibilities checked on conditions
[INFO] [stderr] 18 | |     };
[INFO] [stderr]    | |_____^ help: consider using an if/else expression: `if is_allowed { "Full" } else { "Restricted" }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_bool)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: unused label `'inner_while`
[INFO] [stderr]   --> src/control_flows.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 | /         'inner_while: while c2 < 6 {
[INFO] [stderr] 65 | |             println!("Current Value : [{}][{}]", c1, c2);
[INFO] [stderr] 66 | |             if c1 == 2 && c2 == 2 {
[INFO] [stderr] 67 | |                 break 'outer_while;
[INFO] [stderr] 68 | |             } //kill outer_while
[INFO] [stderr] 69 | |             c2 += 1;
[INFO] [stderr] 70 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_label)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_label
[INFO] [stderr] 
[INFO] [stderr] warning: unused label `'inner_loop`
[INFO] [stderr]    --> src/control_flows.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 | /         'inner_loop: loop {
[INFO] [stderr] 106 | |             println!("Current Value : [{}][{}]", b1, b2);
[INFO] [stderr] 107 | |             if b1 == 2 && b2 == 2 {
[INFO] [stderr] 108 | |                 break 'outer_loop; // kill outer_loop
[INFO] [stderr] ...   |
[INFO] [stderr] 112 | |             b2 += 1;
[INFO] [stderr] 113 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_label
[INFO] [stderr] 
[INFO] [stderr] warning: unused label `'inner_for`
[INFO] [stderr]    --> src/control_flows.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 | /         'inner_for: for c2 in 1..6 {
[INFO] [stderr] 144 | |             println!("Current Value : [{}][{}]", c1, c2);
[INFO] [stderr] 145 | |             if c1 == 2 && c2 == 2 {
[INFO] [stderr] 146 | |                 break 'outer_for;
[INFO] [stderr] 147 | |             } //kill outer_for
[INFO] [stderr] 148 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_label
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `n` is only used to index `group`.
[INFO] [stderr]    --> src/control_flows.rs:154:14
[INFO] [stderr]     |
[INFO] [stderr] 154 |     for n in 0..group.len() {
[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] 154 |     for <item> in &group {
[INFO] [stderr]     |         ^^^^^^    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:54:16
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let roar = (sauce as f64) / 2.0;
[INFO] [stderr]    |                ^^^^^^^^^^^^^^ help: try: `f64::from(sauce)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/control_flows.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 |       let list_type = match is_allowed {
[INFO] [stderr]    |  _____________________^
[INFO] [stderr] 15 | |         true => "Full",
[INFO] [stderr] 16 | |         false => "Restricted", // no default/ _ condition can be skipped
[INFO] [stderr] 17 | |                                // Because data type of is_allowed is boolean and all possibilities checked on conditions
[INFO] [stderr] 18 | |     };
[INFO] [stderr]    | |_____^ help: consider using an if/else expression: `if is_allowed { "Full" } else { "Restricted" }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_bool)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: unused label `'inner_while`
[INFO] [stderr]   --> src/control_flows.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 | /         'inner_while: while c2 < 6 {
[INFO] [stderr] 65 | |             println!("Current Value : [{}][{}]", c1, c2);
[INFO] [stderr] 66 | |             if c1 == 2 && c2 == 2 {
[INFO] [stderr] 67 | |                 break 'outer_while;
[INFO] [stderr] 68 | |             } //kill outer_while
[INFO] [stderr] 69 | |             c2 += 1;
[INFO] [stderr] 70 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_label)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_label
[INFO] [stderr] 
[INFO] [stderr] warning: unused label `'inner_loop`
[INFO] [stderr]    --> src/control_flows.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 | /         'inner_loop: loop {
[INFO] [stderr] 106 | |             println!("Current Value : [{}][{}]", b1, b2);
[INFO] [stderr] 107 | |             if b1 == 2 && b2 == 2 {
[INFO] [stderr] 108 | |                 break 'outer_loop; // kill outer_loop
[INFO] [stderr] ...   |
[INFO] [stderr] 112 | |             b2 += 1;
[INFO] [stderr] 113 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_label
[INFO] [stderr] 
[INFO] [stderr] warning: unused label `'inner_for`
[INFO] [stderr]    --> src/control_flows.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 | /         'inner_for: for c2 in 1..6 {
[INFO] [stderr] 144 | |             println!("Current Value : [{}][{}]", c1, c2);
[INFO] [stderr] 145 | |             if c1 == 2 && c2 == 2 {
[INFO] [stderr] 146 | |                 break 'outer_for;
[INFO] [stderr] 147 | |             } //kill outer_for
[INFO] [stderr] 148 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_label
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `n` is only used to index `group`.
[INFO] [stderr]    --> src/control_flows.rs:154:14
[INFO] [stderr]     |
[INFO] [stderr] 154 |     for n in 0..group.len() {
[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] 154 |     for <item> in &group {
[INFO] [stderr]     |         ^^^^^^    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:54:16
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let roar = (sauce as f64) / 2.0;
[INFO] [stderr]    |                ^^^^^^^^^^^^^^ help: try: `f64::from(sauce)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "e038a67a218fa598bd04be1c5bb42e541d65f453880f0d8fd28cd758d1feff00"`
[INFO] running `"docker" "rm" "-f" "e038a67a218fa598bd04be1c5bb42e541d65f453880f0d8fd28cd758d1feff00"`
[INFO] [stdout] e038a67a218fa598bd04be1c5bb42e541d65f453880f0d8fd28cd758d1feff00