[INFO] updating cached repository Karlotcha/stuff-in-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Karlotcha/stuff-in-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Karlotcha/stuff-in-rust" "work/ex/clippy-test-run/sources/stable/gh/Karlotcha/stuff-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Karlotcha/stuff-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Karlotcha/stuff-in-rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Karlotcha/stuff-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Karlotcha/stuff-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a55c55b39790053fad14cf915964367c86c541cb
[INFO] sha for GitHub repo Karlotcha/stuff-in-rust: a55c55b39790053fad14cf915964367c86c541cb
[INFO] validating manifest of Karlotcha/stuff-in-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 Karlotcha/stuff-in-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 Karlotcha/stuff-in-rust
[INFO] finished frobbing Karlotcha/stuff-in-rust
[INFO] frobbed toml for Karlotcha/stuff-in-rust written to work/ex/clippy-test-run/sources/stable/gh/Karlotcha/stuff-in-rust/Cargo.toml
[INFO] started frobbing Karlotcha/stuff-in-rust
[INFO] finished frobbing Karlotcha/stuff-in-rust
[INFO] frobbed toml for Karlotcha/stuff-in-rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Karlotcha/stuff-in-rust/Cargo.toml
[INFO] crate Karlotcha/stuff-in-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 Karlotcha/stuff-in-rust against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/Karlotcha/stuff-in-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" "-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] 736c8783832601c8542e90e28e9f7732aea74b683fc48c59af49db5e36a8fe95
[INFO] running `"docker" "start" "-a" "736c8783832601c8542e90e28e9f7732aea74b683fc48c59af49db5e36a8fe95"`
[INFO] [stderr]     Checking stuff v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/sorts/mod.rs:121:11
[INFO] [stderr]     |
[INFO] [stderr] 121 |   let (m, n) = (left.len(), right.len());
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/sorts/mod.rs:121:11
[INFO] [stderr]     |
[INFO] [stderr] 121 |   let (m, n) = (left.len(), right.len());
[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: an inclusive range would be more readable
[INFO] [stderr]   --> src/my_functions/mod.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |   for _i in 1..(n+1) { r = r * a }
[INFO] [stderr]    |             ^^^^^^^^ help: use: `1..=n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/my_functions/mod.rs:11:24
[INFO] [stderr]    |
[INFO] [stderr] 11 |   for _i in 1..(n+1) { r = r * a }
[INFO] [stderr]    |                        ^^^^^^^^^ help: replace it with: `r *= a`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/sorts/mod.rs:5:26
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn selection_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]   |                          ^^^^^^^^^ help: change this to: `&[i32]`
[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: an inclusive range would be more readable
[INFO] [stderr]   --> src/my_functions/mod.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |   for _i in 1..(n+1) { r = r * a }
[INFO] [stderr]    |             ^^^^^^^^ help: use: `1..=n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/my_functions/mod.rs:11:24
[INFO] [stderr]    |
[INFO] [stderr] 11 |   for _i in 1..(n+1) { r = r * a }
[INFO] [stderr]    |                        ^^^^^^^^^ help: replace it with: `r *= a`
[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/sorts/mod.rs:22:26
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn insertion_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |                          ^^^^^^^^^ help: change this to: `&[i32]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr] 
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/sorts/mod.rs:5:26
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn selection_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]   |                          ^^^^^^^^^ help: change this to: `&[i32]`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/sorts/mod.rs:30:22
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn merge_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |                      ^^^^^^^^^ help: change this to: `&[i32]`
[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/sorts/mod.rs:42:22
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn quick_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |                      ^^^^^^^^^ help: change this to: `&[i32]`
[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/sorts/mod.rs:22:26
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn insertion_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |                          ^^^^^^^^^ help: change this to: `&[i32]`
[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: the loop variable `i` is used to index `v`
[INFO] [stderr]   --> src/sorts/mod.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |   for i in 0..n {
[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] 50 |   for (i, <item>) in v.iter().enumerate().take(n) {
[INFO] [stderr]    |       ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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/sorts/mod.rs:30:22
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn merge_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |                      ^^^^^^^^^ help: change this to: `&[i32]`
[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/sorts/mod.rs:69:26
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn vect_to_string(v: &Vec<i32>) -> String {
[INFO] [stderr]    |                          ^^^^^^^^^ help: change this to: `&[i32]`
[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/sorts/mod.rs:42:22
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn quick_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |                      ^^^^^^^^^ help: change this to: `&[i32]`
[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: the loop variable `i` is used to index `v`
[INFO] [stderr]   --> src/sorts/mod.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |   for i in 0..n {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr] warning: this looks like you are swapping elements of `v` manually
[INFO] [stderr]   --> src/sorts/mod.rs:77:3
[INFO] [stderr]    |
[INFO] [stderr] 77 | /   let a = v[i];
[INFO] [stderr] 78 | |   v[i] = v[j];
[INFO] [stderr] 79 | |   v[j] = a;
[INFO] [stderr]    | |__________^ help: try: `v.swap(i, j)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::manual_swap)] on by default
[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#manual_swap
[INFO] [stderr] 
[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] 50 |   for (i, <item>) in v.iter().enumerate().take(n) {
[INFO] [stderr]    |       ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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/sorts/mod.rs:69:26
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn vect_to_string(v: &Vec<i32>) -> String {
[INFO] [stderr]    |                          ^^^^^^^^^ help: change this to: `&[i32]`
[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: the loop variable `i` is used to index `v`
[INFO] [stderr]    --> src/sorts/mod.rs:105:14
[INFO] [stderr]     |
[INFO] [stderr] 105 |     for i in 0..n {
[INFO] [stderr]     |              ^^^^
[INFO] [stderr]     |
[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] 105 |     for (i, <item>) in v.iter().enumerate().take(n) {
[INFO] [stderr]     |         ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this looks like you are swapping elements of `v` manually
[INFO] [stderr]   --> src/sorts/mod.rs:77:3
[INFO] [stderr]    |
[INFO] [stderr] 77 | /   let a = v[i];
[INFO] [stderr] 78 | |   v[i] = v[j];
[INFO] [stderr] 79 | |   v[j] = a;
[INFO] [stderr]    | |__________^ help: try: `v.swap(i, j)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::manual_swap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:127:36
[INFO] [stderr]     |
[INFO] [stderr] 127 |     if i == m  { v.push(right[j]); j=j+1; continue; }
[INFO] [stderr]     |                                    ^^^^^ help: replace it with: `j += 1`
[INFO] [stderr]     |
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:128:36
[INFO] [stderr]     |
[INFO] [stderr] 128 |     if j == n  { v.push(left[i]);  i=i+1; continue; }
[INFO] [stderr]     |                                    ^^^^^ help: replace it with: `i += 1`
[INFO] [stderr]     |
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:132:7
[INFO] [stderr]     |
[INFO] [stderr] 132 |       i=i+1;
[INFO] [stderr]     |       ^^^^^ help: replace it with: `i += 1`
[INFO] [stderr]     |
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:135:7
[INFO] [stderr]     |
[INFO] [stderr] 135 |       j=j+1;
[INFO] [stderr]     |       ^^^^^ help: replace it with: `j += 1`
[INFO] [stderr]     |
[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 used to index `v`
[INFO] [stderr]    --> src/sorts/mod.rs:105:14
[INFO] [stderr]     |
[INFO] [stderr] 105 |     for i in 0..n {
[INFO] [stderr]     |              ^^^^
[INFO] [stderr]     |
[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] 105 |     for (i, <item>) in v.iter().enumerate().take(n) {
[INFO] [stderr]     |         ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:127:36
[INFO] [stderr]     |
[INFO] [stderr] 127 |     if i == m  { v.push(right[j]); j=j+1; continue; }
[INFO] [stderr]     |                                    ^^^^^ help: replace it with: `j += 1`
[INFO] [stderr]     |
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:128:36
[INFO] [stderr]     |
[INFO] [stderr] 128 |     if j == n  { v.push(left[i]);  i=i+1; continue; }
[INFO] [stderr]     |                                    ^^^^^ help: replace it with: `i += 1`
[INFO] [stderr]     |
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:132:7
[INFO] [stderr]     |
[INFO] [stderr] 132 |       i=i+1;
[INFO] [stderr]     |       ^^^^^ help: replace it with: `i += 1`
[INFO] [stderr]     |
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:135:7
[INFO] [stderr]     |
[INFO] [stderr] 135 |       j=j+1;
[INFO] [stderr]     |       ^^^^^ help: replace it with: `j += 1`
[INFO] [stderr]     |
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/sorts/mod.rs:121:11
[INFO] [stderr]     |
[INFO] [stderr] 121 |   let (m, n) = (left.len(), right.len());
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/sorts/mod.rs:121:11
[INFO] [stderr]     |
[INFO] [stderr] 121 |   let (m, n) = (left.len(), right.len());
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/sorts/mod.rs:5:26
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn selection_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]   |                          ^^^^^^^^^ help: change this to: `&[i32]`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/sorts/mod.rs:22:26
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn insertion_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |                          ^^^^^^^^^ help: change this to: `&[i32]`
[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/sorts/mod.rs:30:22
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn merge_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |                      ^^^^^^^^^ help: change this to: `&[i32]`
[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/sorts/mod.rs:42:22
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn quick_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |                      ^^^^^^^^^ help: change this to: `&[i32]`
[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: the loop variable `i` is used to index `v`
[INFO] [stderr]   --> src/sorts/mod.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |   for i in 0..n {
[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] 50 |   for (i, <item>) in v.iter().enumerate().take(n) {
[INFO] [stderr]    |       ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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/sorts/mod.rs:69:26
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn vect_to_string(v: &Vec<i32>) -> String {
[INFO] [stderr]    |                          ^^^^^^^^^ help: change this to: `&[i32]`
[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 looks like you are swapping elements of `v` manually
[INFO] [stderr]   --> src/sorts/mod.rs:77:3
[INFO] [stderr]    |
[INFO] [stderr] 77 | /   let a = v[i];
[INFO] [stderr] 78 | |   v[i] = v[j];
[INFO] [stderr] 79 | |   v[j] = a;
[INFO] [stderr]    | |__________^ help: try: `v.swap(i, j)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::manual_swap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `v`
[INFO] [stderr]    --> src/sorts/mod.rs:105:14
[INFO] [stderr]     |
[INFO] [stderr] 105 |     for i in 0..n {
[INFO] [stderr]     |              ^^^^
[INFO] [stderr]     |
[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] 105 |     for (i, <item>) in v.iter().enumerate().take(n) {
[INFO] [stderr]     |         ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:127:36
[INFO] [stderr]     |
[INFO] [stderr] 127 |     if i == m  { v.push(right[j]); j=j+1; continue; }
[INFO] [stderr]     |                                    ^^^^^ help: replace it with: `j += 1`
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:128:36
[INFO] [stderr]     |
[INFO] [stderr] 128 |     if j == n  { v.push(left[i]);  i=i+1; continue; }
[INFO] [stderr]     |                                    ^^^^^ help: replace it with: `i += 1`
[INFO] [stderr]     |
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:132:7
[INFO] [stderr]     |
[INFO] [stderr] 132 |       i=i+1;
[INFO] [stderr]     |       ^^^^^ help: replace it with: `i += 1`
[INFO] [stderr]     |
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:135:7
[INFO] [stderr]     |
[INFO] [stderr] 135 |       j=j+1;
[INFO] [stderr]     |       ^^^^^ help: replace it with: `j += 1`
[INFO] [stderr]     |
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/sorts/mod.rs:5:26
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn selection_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]   |                          ^^^^^^^^^ help: change this to: `&[i32]`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/sorts/mod.rs:22:26
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn insertion_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |                          ^^^^^^^^^ help: change this to: `&[i32]`
[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/sorts/mod.rs:30:22
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn merge_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |                      ^^^^^^^^^ help: change this to: `&[i32]`
[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/sorts/mod.rs:42:22
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn quick_sort(v: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |                      ^^^^^^^^^ help: change this to: `&[i32]`
[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: the loop variable `i` is used to index `v`
[INFO] [stderr]   --> src/sorts/mod.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |   for i in 0..n {
[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] 50 |   for (i, <item>) in v.iter().enumerate().take(n) {
[INFO] [stderr]    |       ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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/sorts/mod.rs:69:26
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn vect_to_string(v: &Vec<i32>) -> String {
[INFO] [stderr]    |                          ^^^^^^^^^ help: change this to: `&[i32]`
[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 looks like you are swapping elements of `v` manually
[INFO] [stderr]   --> src/sorts/mod.rs:77:3
[INFO] [stderr]    |
[INFO] [stderr] 77 | /   let a = v[i];
[INFO] [stderr] 78 | |   v[i] = v[j];
[INFO] [stderr] 79 | |   v[j] = a;
[INFO] [stderr]    | |__________^ help: try: `v.swap(i, j)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::manual_swap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `v`
[INFO] [stderr]    --> src/sorts/mod.rs:105:14
[INFO] [stderr]     |
[INFO] [stderr] 105 |     for i in 0..n {
[INFO] [stderr]     |              ^^^^
[INFO] [stderr]     |
[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] 105 |     for (i, <item>) in v.iter().enumerate().take(n) {
[INFO] [stderr]     |         ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:127:36
[INFO] [stderr]     |
[INFO] [stderr] 127 |     if i == m  { v.push(right[j]); j=j+1; continue; }
[INFO] [stderr]     |                                    ^^^^^ help: replace it with: `j += 1`
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:128:36
[INFO] [stderr]     |
[INFO] [stderr] 128 |     if j == n  { v.push(left[i]);  i=i+1; continue; }
[INFO] [stderr]     |                                    ^^^^^ help: replace it with: `i += 1`
[INFO] [stderr]     |
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:132:7
[INFO] [stderr]     |
[INFO] [stderr] 132 |       i=i+1;
[INFO] [stderr]     |       ^^^^^ help: replace it with: `i += 1`
[INFO] [stderr]     |
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/sorts/mod.rs:135:7
[INFO] [stderr]     |
[INFO] [stderr] 135 |       j=j+1;
[INFO] [stderr]     |       ^^^^^ help: replace it with: `j += 1`
[INFO] [stderr]     |
[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 2.12s
[INFO] running `"docker" "inspect" "736c8783832601c8542e90e28e9f7732aea74b683fc48c59af49db5e36a8fe95"`
[INFO] running `"docker" "rm" "-f" "736c8783832601c8542e90e28e9f7732aea74b683fc48c59af49db5e36a8fe95"`
[INFO] [stdout] 736c8783832601c8542e90e28e9f7732aea74b683fc48c59af49db5e36a8fe95