[INFO] crate permutation-rs 3.0.0 is already in cache
[INFO] extracting crate permutation-rs 3.0.0 into work/ex/clippy-test-run/sources/stable/reg/permutation-rs/3.0.0
[INFO] extracting crate permutation-rs 3.0.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/permutation-rs/3.0.0
[INFO] validating manifest of permutation-rs-3.0.0 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 permutation-rs-3.0.0 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 permutation-rs-3.0.0
[INFO] finished frobbing permutation-rs-3.0.0
[INFO] frobbed toml for permutation-rs-3.0.0 written to work/ex/clippy-test-run/sources/stable/reg/permutation-rs/3.0.0/Cargo.toml
[INFO] started frobbing permutation-rs-3.0.0
[INFO] finished frobbing permutation-rs-3.0.0
[INFO] frobbed toml for permutation-rs-3.0.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/permutation-rs/3.0.0/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 permutation-rs-3.0.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/permutation-rs/3.0.0:/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] 79d7fac9b0f90fe61033444232823730fe6f679785e63b555f8e2149ec7209da
[INFO] running `"docker" "start" "-a" "79d7fac9b0f90fe61033444232823730fe6f679785e63b555f8e2149ec7209da"`
[INFO] [stderr]     Checking permutation-rs v3.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/group/permutation.rs:84:23
[INFO] [stderr]    |
[INFO] [stderr] 84 |         Permutation { images: images, n: n }
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^ help: replace it with: `images`
[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/group/permutation.rs:84:39
[INFO] [stderr]    |
[INFO] [stderr] 84 |         Permutation { images: images, n: n }
[INFO] [stderr]    |                                       ^^^^ help: replace it with: `n`
[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/group/free.rs:93:16
[INFO] [stderr]    |
[INFO] [stderr] 93 |         Word { terms: terms }
[INFO] [stderr]    |                ^^^^^^^^^^^^ help: replace it with: `terms`
[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/group/free.rs:103:16
[INFO] [stderr]     |
[INFO] [stderr] 103 |         Word { terms: terms }
[INFO] [stderr]     |                ^^^^^^^^^^^^ help: replace it with: `terms`
[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/group/mod.rs:62:17
[INFO] [stderr]    |
[INFO] [stderr] 62 |         Group { levels: levels }
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^ help: replace it with: `levels`
[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/group/mod.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |         write!(f, "<\n")?;
[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: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/group/mod.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         write!(f, ">\n")
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/group/mod.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |         write!(f, "]\n")
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/group/mod.rs:244:20
[INFO] [stderr]     |
[INFO] [stderr] 244 |         Morphism { generator_images: generator_images }
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `generator_images`
[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/group/permutation.rs:84:23
[INFO] [stderr]    |
[INFO] [stderr] 84 |         Permutation { images: images, n: n }
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^ help: replace it with: `images`
[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/group/permutation.rs:84:39
[INFO] [stderr]    |
[INFO] [stderr] 84 |         Permutation { images: images, n: n }
[INFO] [stderr]    |                                       ^^^^ help: replace it with: `n`
[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/group/free.rs:93:16
[INFO] [stderr]    |
[INFO] [stderr] 93 |         Word { terms: terms }
[INFO] [stderr]    |                ^^^^^^^^^^^^ help: replace it with: `terms`
[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/group/free.rs:103:16
[INFO] [stderr]     |
[INFO] [stderr] 103 |         Word { terms: terms }
[INFO] [stderr]     |                ^^^^^^^^^^^^ help: replace it with: `terms`
[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/group/mod.rs:62:17
[INFO] [stderr]    |
[INFO] [stderr] 62 |         Group { levels: levels }
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^ help: replace it with: `levels`
[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/group/mod.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |         write!(f, "<\n")?;
[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: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/group/mod.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         write!(f, ">\n")
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/group/mod.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |         write!(f, "]\n")
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/group/mod.rs:244:20
[INFO] [stderr]     |
[INFO] [stderr] 244 |         Morphism { generator_images: generator_images }
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `generator_images`
[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: this `else { if .. }` block can be collapsed
[INFO] [stderr]   --> src/group/free.rs:65:24
[INFO] [stderr]    |
[INFO] [stderr] 65 |                   } else {
[INFO] [stderr]    |  ________________________^
[INFO] [stderr] 66 | |                     if !normalized.is_empty() {
[INFO] [stderr] 67 | |                         current = normalized.pop().expect("non-empty stack");
[INFO] [stderr] 68 | |                         continue;
[INFO] [stderr] 69 | |                     }
[INFO] [stderr] 70 | |                 }
[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] 65 |                 } else if !normalized.is_empty() {
[INFO] [stderr] 66 |     current = normalized.pop().expect("non-empty stack");
[INFO] [stderr] 67 |     continue;
[INFO] [stderr] 68 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]   --> src/group/free.rs:65:24
[INFO] [stderr]    |
[INFO] [stderr] 65 |                   } else {
[INFO] [stderr]    |  ________________________^
[INFO] [stderr] 66 | |                     if !normalized.is_empty() {
[INFO] [stderr] 67 | |                         current = normalized.pop().expect("non-empty stack");
[INFO] [stderr] 68 | |                         continue;
[INFO] [stderr] 69 | |                     }
[INFO] [stderr] 70 | |                 }
[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] 65 |                 } else if !normalized.is_empty() {
[INFO] [stderr] 66 |     current = normalized.pop().expect("non-empty stack");
[INFO] [stderr] 67 |     continue;
[INFO] [stderr] 68 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/group/permutation.rs:92:25
[INFO] [stderr]    |
[INFO] [stderr] 92 |             let image = self.images.get(&original).unwrap_or(&original).clone();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*self.images.get(&original).unwrap_or(&original)`
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:105:29
[INFO] [stderr]     |
[INFO] [stderr] 105 |             let mut image = self.images.get(&original).unwrap_or(&original).clone();
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*self.images.get(&original).unwrap_or(&original)`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:106:21
[INFO] [stderr]     |
[INFO] [stderr] 106 |             image = multiplicant.images.get(&image).unwrap_or(&image).clone();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*multiplicant.images.get(&image).unwrap_or(&image)`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:116:25
[INFO] [stderr]     |
[INFO] [stderr] 116 |             let image = self.images.get(&original).unwrap_or(&original).clone();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*self.images.get(&original).unwrap_or(&original)`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         self.images.get(&original).unwrap_or(&original).clone()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*self.images.get(&original).unwrap_or(&original)`
[INFO] [stderr]     |
[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: length comparison to zero
[INFO] [stderr]    --> src/group/permutation.rs:134:12
[INFO] [stderr]     |
[INFO] [stderr] 134 |         if cycles.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!cycles.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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:159:28
[INFO] [stderr]     |
[INFO] [stderr] 159 |             visited.insert(original.clone());
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `original`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:160:34
[INFO] [stderr]     |
[INFO] [stderr] 160 |             let mut cycle = vec!(original.clone());
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `original`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:161:29
[INFO] [stderr]     |
[INFO] [stderr] 161 |             let mut image = images.get(&original).unwrap_or(&original).clone();
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*images.get(&original).unwrap_or(&original)`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:163:32
[INFO] [stderr]     |
[INFO] [stderr] 163 |                 visited.insert(image.clone());
[INFO] [stderr]     |                                ^^^^^^^^^^^^^ help: try removing the `clone` call: `image`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:164:28
[INFO] [stderr]     |
[INFO] [stderr] 164 |                 cycle.push(image.clone());
[INFO] [stderr]     |                            ^^^^^^^^^^^^^ help: try removing the `clone` call: `image`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:165:25
[INFO] [stderr]     |
[INFO] [stderr] 165 |                 image = images.get(&image).unwrap_or(&image).clone();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*images.get(&image).unwrap_or(&image)`
[INFO] [stderr]     |
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/group/free.rs:48:24
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn normalize(elements: &Vec<(char, i64)>) -> Vec<(char, i64)> {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^ help: change this to: `&[(char, i64)]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/group/free.rs:56:40
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let mut current: (char, i64) = not_normalized.get(0).expect("at least two elements").clone();
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*not_normalized.get(0).expect("at least two elements")`
[INFO] [stderr]    |
[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: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/group/free.rs:59:29
[INFO] [stderr]    |
[INFO] [stderr] 59 |             let primitive = not_normalized.get(index).expect("index within bound").clone();
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*not_normalized.get(index).expect("index within bound")`
[INFO] [stderr]    |
[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: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/group/free.rs:61:28
[INFO] [stderr]    |
[INFO] [stderr] 61 |                 current = (current.0.clone(), current.1 + primitive.1)
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `current.0`
[INFO] [stderr]    |
[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: length comparison to zero
[INFO] [stderr]   --> src/group/free.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |         self.terms.len() == 0
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.terms.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: length comparison to zero
[INFO] [stderr]    --> src/group/free.rs:109:12
[INFO] [stderr]     |
[INFO] [stderr] 109 |         if self.terms.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!self.terms.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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/group/calculation.rs:11:42
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn elements_generated_by(generators: &Vec<Permutation>) -> Vec<Permutation> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^ help: change this to: `&[Permutation]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/group/calculation.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |         for ref g in generators {
[INFO] [stderr]    |             ^^^^^    ---------- help: try: `let g = &generators;`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/group/calculation.rs:33:32
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn identity<G>(generators: &Vec<G>) -> G where G: GroupElement {
[INFO] [stderr]    |                                ^^^^^^^ help: change this to: `&[G]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/group/calculation.rs:45:24
[INFO] [stderr]    |
[INFO] [stderr] 45 |           .map(|n| n + 1)
[INFO] [stderr]    |  ________________________^
[INFO] [stderr] 46 | |         .fold(1u64, |acc, n| acc * n)
[INFO] [stderr]    | |_____________________________________^ help: try: `.product()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/group/mod.rs:56:15
[INFO] [stderr]    |
[INFO] [stderr] 56 |         while gs.len() > 0 {
[INFO] [stderr]    |               ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!gs.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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/group/mod.rs:94:31
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn find_base<Domain, G>(gset: &Vec<Domain>, generators: &Vec<G>) -> Option<Domain>
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: change this to: `&[Domain]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/group/mod.rs:94:57
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn find_base<Domain, G>(gset: &Vec<Domain>, generators: &Vec<G>) -> Option<Domain>
[INFO] [stderr]    |                                                         ^^^^^^^ help: change this to: `&[G]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/group/mod.rs:179:63
[INFO] [stderr]     |
[INFO] [stderr] 179 | fn add_to_stabilizers<Domain, G>(stabilizer: &G, stabilizers: &Vec<G>) -> bool
[INFO] [stderr]     |                                                               ^^^^^^^ help: change this to: `&[G]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/group/mod.rs:200:59
[INFO] [stderr]     |
[INFO] [stderr] 200 | fn transversal_for<Domain, G>(start: &Domain, generators: &Vec<G>, indices: &HashMap<Domain, isize>) -> Option<G>
[INFO] [stderr]     |                                                           ^^^^^^^ help: change this to: `&[G]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/group/permutation.rs:92:25
[INFO] [stderr]    |
[INFO] [stderr] 92 |             let image = self.images.get(&original).unwrap_or(&original).clone();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*self.images.get(&original).unwrap_or(&original)`
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:105:29
[INFO] [stderr]     |
[INFO] [stderr] 105 |             let mut image = self.images.get(&original).unwrap_or(&original).clone();
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*self.images.get(&original).unwrap_or(&original)`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:106:21
[INFO] [stderr]     |
[INFO] [stderr] 106 |             image = multiplicant.images.get(&image).unwrap_or(&image).clone();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*multiplicant.images.get(&image).unwrap_or(&image)`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:116:25
[INFO] [stderr]     |
[INFO] [stderr] 116 |             let image = self.images.get(&original).unwrap_or(&original).clone();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*self.images.get(&original).unwrap_or(&original)`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         self.images.get(&original).unwrap_or(&original).clone()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*self.images.get(&original).unwrap_or(&original)`
[INFO] [stderr]     |
[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: length comparison to zero
[INFO] [stderr]    --> src/group/permutation.rs:134:12
[INFO] [stderr]     |
[INFO] [stderr] 134 |         if cycles.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!cycles.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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:159:28
[INFO] [stderr]     |
[INFO] [stderr] 159 |             visited.insert(original.clone());
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `original`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:160:34
[INFO] [stderr]     |
[INFO] [stderr] 160 |             let mut cycle = vec!(original.clone());
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `original`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:161:29
[INFO] [stderr]     |
[INFO] [stderr] 161 |             let mut image = images.get(&original).unwrap_or(&original).clone();
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*images.get(&original).unwrap_or(&original)`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:163:32
[INFO] [stderr]     |
[INFO] [stderr] 163 |                 visited.insert(image.clone());
[INFO] [stderr]     |                                ^^^^^^^^^^^^^ help: try removing the `clone` call: `image`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:164:28
[INFO] [stderr]     |
[INFO] [stderr] 164 |                 cycle.push(image.clone());
[INFO] [stderr]     |                            ^^^^^^^^^^^^^ help: try removing the `clone` call: `image`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/group/permutation.rs:165:25
[INFO] [stderr]     |
[INFO] [stderr] 165 |                 image = images.get(&image).unwrap_or(&image).clone();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*images.get(&image).unwrap_or(&image)`
[INFO] [stderr]     |
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/group/free.rs:48:24
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn normalize(elements: &Vec<(char, i64)>) -> Vec<(char, i64)> {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^ help: change this to: `&[(char, i64)]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/group/free.rs:56:40
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let mut current: (char, i64) = not_normalized.get(0).expect("at least two elements").clone();
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*not_normalized.get(0).expect("at least two elements")`
[INFO] [stderr]    |
[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: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/group/free.rs:59:29
[INFO] [stderr]    |
[INFO] [stderr] 59 |             let primitive = not_normalized.get(index).expect("index within bound").clone();
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*not_normalized.get(index).expect("index within bound")`
[INFO] [stderr]    |
[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: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/group/free.rs:61:28
[INFO] [stderr]    |
[INFO] [stderr] 61 |                 current = (current.0.clone(), current.1 + primitive.1)
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `current.0`
[INFO] [stderr]    |
[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: length comparison to zero
[INFO] [stderr]   --> src/group/free.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |         self.terms.len() == 0
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.terms.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: length comparison to zero
[INFO] [stderr]    --> src/group/free.rs:109:12
[INFO] [stderr]     |
[INFO] [stderr] 109 |         if self.terms.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!self.terms.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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/group/calculation.rs:11:42
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn elements_generated_by(generators: &Vec<Permutation>) -> Vec<Permutation> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^ help: change this to: `&[Permutation]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/group/calculation.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |         for ref g in generators {
[INFO] [stderr]    |             ^^^^^    ---------- help: try: `let g = &generators;`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/group/calculation.rs:33:32
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn identity<G>(generators: &Vec<G>) -> G where G: GroupElement {
[INFO] [stderr]    |                                ^^^^^^^ help: change this to: `&[G]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/group/calculation.rs:45:24
[INFO] [stderr]    |
[INFO] [stderr] 45 |           .map(|n| n + 1)
[INFO] [stderr]    |  ________________________^
[INFO] [stderr] 46 | |         .fold(1u64, |acc, n| acc * n)
[INFO] [stderr]    | |_____________________________________^ help: try: `.product()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/group/mod.rs:56:15
[INFO] [stderr]    |
[INFO] [stderr] 56 |         while gs.len() > 0 {
[INFO] [stderr]    |               ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!gs.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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/group/mod.rs:94:31
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn find_base<Domain, G>(gset: &Vec<Domain>, generators: &Vec<G>) -> Option<Domain>
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: change this to: `&[Domain]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/group/mod.rs:94:57
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn find_base<Domain, G>(gset: &Vec<Domain>, generators: &Vec<G>) -> Option<Domain>
[INFO] [stderr]    |                                                         ^^^^^^^ help: change this to: `&[G]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/group/mod.rs:179:63
[INFO] [stderr]     |
[INFO] [stderr] 179 | fn add_to_stabilizers<Domain, G>(stabilizer: &G, stabilizers: &Vec<G>) -> bool
[INFO] [stderr]     |                                                               ^^^^^^^ help: change this to: `&[G]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/group/mod.rs:200:59
[INFO] [stderr]     |
[INFO] [stderr] 200 | fn transversal_for<Domain, G>(start: &Domain, generators: &Vec<G>, indices: &HashMap<Domain, isize>) -> Option<G>
[INFO] [stderr]     |                                                           ^^^^^^^ help: change this to: `&[G]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `"docker" "inspect" "79d7fac9b0f90fe61033444232823730fe6f679785e63b555f8e2149ec7209da"`
[INFO] running `"docker" "rm" "-f" "79d7fac9b0f90fe61033444232823730fe6f679785e63b555f8e2149ec7209da"`
[INFO] [stdout] 79d7fac9b0f90fe61033444232823730fe6f679785e63b555f8e2149ec7209da