[INFO] updating cached repository jFransham/unicode-snowlang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jFransham/unicode-snowlang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jFransham/unicode-snowlang" "work/ex/clippy-test-run/sources/stable/gh/jFransham/unicode-snowlang"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/jFransham/unicode-snowlang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jFransham/unicode-snowlang" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jFransham/unicode-snowlang"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jFransham/unicode-snowlang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 892600fee7c103ff1f9fc563c4f263eca65479be
[INFO] sha for GitHub repo jFransham/unicode-snowlang: 892600fee7c103ff1f9fc563c4f263eca65479be
[INFO] validating manifest of jFransham/unicode-snowlang 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 jFransham/unicode-snowlang 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 jFransham/unicode-snowlang
[INFO] finished frobbing jFransham/unicode-snowlang
[INFO] frobbed toml for jFransham/unicode-snowlang written to work/ex/clippy-test-run/sources/stable/gh/jFransham/unicode-snowlang/Cargo.toml
[INFO] started frobbing jFransham/unicode-snowlang
[INFO] finished frobbing jFransham/unicode-snowlang
[INFO] frobbed toml for jFransham/unicode-snowlang written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jFransham/unicode-snowlang/Cargo.toml
[INFO] crate jFransham/unicode-snowlang 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 jFransham/unicode-snowlang 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-5/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/jFransham/unicode-snowlang:/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] 8e88934c624e059da970516acb29d932031e5fffad4d8881f00432bf76c18eeb
[INFO] running `"docker" "start" "-a" "8e88934c624e059da970516acb29d932031e5fffad4d8881f00432bf76c18eeb"`
[INFO] [stderr]     Checking unicode_snowlang v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/main.rs:67:32
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn run(program: &LanguageNode) -> () {
[INFO] [stderr]    |                                ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]    --> src/main.rs:135:11
[INFO] [stderr]     |
[INFO] [stderr] 135 | fn main() -> () {
[INFO] [stderr]     |           ^^^^^ help: remove the `-> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/main.rs:144:16
[INFO] [stderr]     |
[INFO] [stderr] 144 |           } else {
[INFO] [stderr]     |  ________________^
[INFO] [stderr] 145 | |             if let Ok(mut file) = File::open(first_arg.clone()) {
[INFO] [stderr] 146 | |                 let mut s = String::new();
[INFO] [stderr] 147 | |                 if let Ok(_) = file.read_to_string(&mut s) {
[INFO] [stderr] ...   |
[INFO] [stderr] 160 | |             }
[INFO] [stderr] 161 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 144 |         } else if let Ok(mut file) = File::open(first_arg.clone()) {
[INFO] [stderr] 145 |     let mut s = String::new();
[INFO] [stderr] 146 |     if let Ok(_) = file.read_to_string(&mut s) {
[INFO] [stderr] 147 |         let mut program = s.split_whitespace().map(|s| s.to_string());
[INFO] [stderr] 148 | 
[INFO] [stderr] 149 |         // let mut p2 = s.split_whitespace().map(|s| s.to_string());
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/main.rs:67:32
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn run(program: &LanguageNode) -> () {
[INFO] [stderr]    |                                ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]    --> src/main.rs:135:11
[INFO] [stderr]     |
[INFO] [stderr] 135 | fn main() -> () {
[INFO] [stderr]     |           ^^^^^ help: remove the `-> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/main.rs:144:16
[INFO] [stderr]     |
[INFO] [stderr] 144 |           } else {
[INFO] [stderr]     |  ________________^
[INFO] [stderr] 145 | |             if let Ok(mut file) = File::open(first_arg.clone()) {
[INFO] [stderr] 146 | |                 let mut s = String::new();
[INFO] [stderr] 147 | |                 if let Ok(_) = file.read_to_string(&mut s) {
[INFO] [stderr] ...   |
[INFO] [stderr] 160 | |             }
[INFO] [stderr] 161 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 144 |         } else if let Ok(mut file) = File::open(first_arg.clone()) {
[INFO] [stderr] 145 |     let mut s = String::new();
[INFO] [stderr] 146 |     if let Ok(_) = file.read_to_string(&mut s) {
[INFO] [stderr] 147 |         let mut program = s.split_whitespace().map(|s| s.to_string());
[INFO] [stderr] 148 | 
[INFO] [stderr] 149 |         // let mut p2 = s.split_whitespace().map(|s| s.to_string());
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:112:37
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 let maybe_counter = buffer.get(point).map(|a| *a).clone();
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `buffer.get(point).map(|a| *a)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/main.rs:112:37
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 let maybe_counter = buffer.get(point).map(|a| *a).clone();
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `buffer.get(point).cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_ok()`
[INFO] [stderr]    --> src/main.rs:147:24
[INFO] [stderr]     |
[INFO] [stderr] 147 |                   if let Ok(_) = file.read_to_string(&mut s) {
[INFO] [stderr]     |  _________________-      ^^^^^
[INFO] [stderr] 148 | |                     let mut program = s.split_whitespace().map(|s| s.to_string());
[INFO] [stderr] 149 | |
[INFO] [stderr] 150 | |                     // let mut p2 = s.split_whitespace().map(|s| s.to_string());
[INFO] [stderr] ...   |
[INFO] [stderr] 156 | |                     panic!("File read failed for {}.", first_arg);
[INFO] [stderr] 157 | |                 }
[INFO] [stderr]     | |_________________- help: try this: `if file.read_to_string(&mut s).is_ok()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:112:37
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 let maybe_counter = buffer.get(point).map(|a| *a).clone();
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `buffer.get(point).map(|a| *a)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/main.rs:112:37
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 let maybe_counter = buffer.get(point).map(|a| *a).clone();
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `buffer.get(point).cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_ok()`
[INFO] [stderr]    --> src/main.rs:147:24
[INFO] [stderr]     |
[INFO] [stderr] 147 |                   if let Ok(_) = file.read_to_string(&mut s) {
[INFO] [stderr]     |  _________________-      ^^^^^
[INFO] [stderr] 148 | |                     let mut program = s.split_whitespace().map(|s| s.to_string());
[INFO] [stderr] 149 | |
[INFO] [stderr] 150 | |                     // let mut p2 = s.split_whitespace().map(|s| s.to_string());
[INFO] [stderr] ...   |
[INFO] [stderr] 156 | |                     panic!("File read failed for {}.", first_arg);
[INFO] [stderr] 157 | |                 }
[INFO] [stderr]     | |_________________- help: try this: `if file.read_to_string(&mut s).is_ok()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "8e88934c624e059da970516acb29d932031e5fffad4d8881f00432bf76c18eeb"`
[INFO] running `"docker" "rm" "-f" "8e88934c624e059da970516acb29d932031e5fffad4d8881f00432bf76c18eeb"`
[INFO] [stdout] 8e88934c624e059da970516acb29d932031e5fffad4d8881f00432bf76c18eeb