[INFO] updating cached repository NikitaSmall/rust_rpn
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/NikitaSmall/rust_rpn
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/NikitaSmall/rust_rpn" "work/ex/clippy-test-run/sources/stable/gh/NikitaSmall/rust_rpn"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/NikitaSmall/rust_rpn'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/NikitaSmall/rust_rpn" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/NikitaSmall/rust_rpn"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/NikitaSmall/rust_rpn'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 34a83739d911b80bb25319db4149fbd4084660a3
[INFO] sha for GitHub repo NikitaSmall/rust_rpn: 34a83739d911b80bb25319db4149fbd4084660a3
[INFO] validating manifest of NikitaSmall/rust_rpn 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 NikitaSmall/rust_rpn 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 NikitaSmall/rust_rpn
[INFO] finished frobbing NikitaSmall/rust_rpn
[INFO] frobbed toml for NikitaSmall/rust_rpn written to work/ex/clippy-test-run/sources/stable/gh/NikitaSmall/rust_rpn/Cargo.toml
[INFO] started frobbing NikitaSmall/rust_rpn
[INFO] finished frobbing NikitaSmall/rust_rpn
[INFO] frobbed toml for NikitaSmall/rust_rpn written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/NikitaSmall/rust_rpn/Cargo.toml
[INFO] crate NikitaSmall/rust_rpn 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 NikitaSmall/rust_rpn 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/NikitaSmall/rust_rpn:/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] ed36bd7ef6b0641dfbc35e539ee9924debef01475874b24a9e73bcbf74027f26
[INFO] running `"docker" "start" "-a" "ed36bd7ef6b0641dfbc35e539ee9924debef01475874b24a9e73bcbf74027f26"`
[INFO] [stderr]     Checking rpn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/converter.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |             raw: raw,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `raw`
[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/converter.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |             prededence: prededence,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `prededence`
[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/converter.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |             raw: raw,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `raw`
[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/converter.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |             prededence: prededence,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `prededence`
[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: field is never used: `raw`
[INFO] [stderr]   --> src/converter.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     raw: String,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `prededence`
[INFO] [stderr]   --> src/converter.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     prededence: HashMap<Stackable, i8>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `convert`
[INFO] [stderr]   --> src/converter.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn convert(raw: String) -> Converter {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process`
[INFO] [stderr]   --> src/converter.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn process(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/converter.rs:42:27
[INFO] [stderr]    |
[INFO] [stderr] 42 |                     while (s.len() > 0) &&
[INFO] [stderr]    |                           ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!s.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/converter.rs:53:15
[INFO] [stderr]    |
[INFO] [stderr] 53 |         while s.len() > 0 {
[INFO] [stderr]    |               ^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!s.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/converter.rs:58:23
[INFO] [stderr]    |
[INFO] [stderr] 58 |               .map(|el| match el {
[INFO] [stderr]    |  _______________________^
[INFO] [stderr] 59 | |                 &Stackable::Value(num) => num.to_string(),
[INFO] [stderr] 60 | |                 &Stackable::Operation(op) => op.to_string(),
[INFO] [stderr] 61 | |             })
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 58 |             .map(|el| match *el {
[INFO] [stderr] 59 |                 Stackable::Value(num) => num.to_string(),
[INFO] [stderr] 60 |                 Stackable::Operation(op) => op.to_string(),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/lib.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 | /             match value {
[INFO] [stderr] 23 | |                 &Stackable::Value(num) => self.stack.push(num),
[INFO] [stderr] 24 | |                 &Stackable::Operation(operation) => {
[INFO] [stderr] 25 | |                     let value_one = self.stack.pop().unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 35 | |                 }
[INFO] [stderr] 36 | |             }
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 22 |             match *value {
[INFO] [stderr] 23 |                 Stackable::Value(num) => self.stack.push(num),
[INFO] [stderr] 24 |                 Stackable::Operation(operation) => {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/converter.rs:95:13
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let mut converter = Converter::convert(example_string);
[INFO] [stderr]    |             ----^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/converter.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut converter = Converter::convert(example_string);
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/converter.rs:42:27
[INFO] [stderr]    |
[INFO] [stderr] 42 |                     while (s.len() > 0) &&
[INFO] [stderr]    |                           ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!s.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/converter.rs:53:15
[INFO] [stderr]    |
[INFO] [stderr] 53 |         while s.len() > 0 {
[INFO] [stderr]    |               ^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!s.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/converter.rs:58:23
[INFO] [stderr]    |
[INFO] [stderr] 58 |               .map(|el| match el {
[INFO] [stderr]    |  _______________________^
[INFO] [stderr] 59 | |                 &Stackable::Value(num) => num.to_string(),
[INFO] [stderr] 60 | |                 &Stackable::Operation(op) => op.to_string(),
[INFO] [stderr] 61 | |             })
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 58 |             .map(|el| match *el {
[INFO] [stderr] 59 |                 Stackable::Value(num) => num.to_string(),
[INFO] [stderr] 60 |                 Stackable::Operation(op) => op.to_string(),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/lib.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 | /             match value {
[INFO] [stderr] 23 | |                 &Stackable::Value(num) => self.stack.push(num),
[INFO] [stderr] 24 | |                 &Stackable::Operation(operation) => {
[INFO] [stderr] 25 | |                     let value_one = self.stack.pop().unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 35 | |                 }
[INFO] [stderr] 36 | |             }
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 22 |             match *value {
[INFO] [stderr] 23 |                 Stackable::Value(num) => self.stack.push(num),
[INFO] [stderr] 24 |                 Stackable::Operation(operation) => {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "ed36bd7ef6b0641dfbc35e539ee9924debef01475874b24a9e73bcbf74027f26"`
[INFO] running `"docker" "rm" "-f" "ed36bd7ef6b0641dfbc35e539ee9924debef01475874b24a9e73bcbf74027f26"`
[INFO] [stdout] ed36bd7ef6b0641dfbc35e539ee9924debef01475874b24a9e73bcbf74027f26