[INFO] updating cached repository ikurek/PEA-Projekt2
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ikurek/PEA-Projekt2
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ikurek/PEA-Projekt2" "work/ex/clippy-test-run/sources/stable/gh/ikurek/PEA-Projekt2"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/ikurek/PEA-Projekt2'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ikurek/PEA-Projekt2" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ikurek/PEA-Projekt2"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ikurek/PEA-Projekt2'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a69ecf369221768be633c1af62fefbce2b28ec9a
[INFO] sha for GitHub repo ikurek/PEA-Projekt2: a69ecf369221768be633c1af62fefbce2b28ec9a
[INFO] validating manifest of ikurek/PEA-Projekt2 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 ikurek/PEA-Projekt2 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 ikurek/PEA-Projekt2
[INFO] finished frobbing ikurek/PEA-Projekt2
[INFO] frobbed toml for ikurek/PEA-Projekt2 written to work/ex/clippy-test-run/sources/stable/gh/ikurek/PEA-Projekt2/Cargo.toml
[INFO] started frobbing ikurek/PEA-Projekt2
[INFO] finished frobbing ikurek/PEA-Projekt2
[INFO] frobbed toml for ikurek/PEA-Projekt2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ikurek/PEA-Projekt2/Cargo.toml
[INFO] crate ikurek/PEA-Projekt2 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 ikurek/PEA-Projekt2 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/ikurek/PEA-Projekt2:/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] 0f8ab1fda5eb1c6abb699d766acf4a2ae03d609483877470745a1badc730428f
[INFO] running `"docker" "start" "-a" "0f8ab1fda5eb1c6abb699d766acf4a2ae03d609483877470745a1badc730428f"`
[INFO] [stderr]     Checking tsplib v0.1.0
[INFO] [stderr]     Checking tabu_search v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/file_reader.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         return read_txt_file(file_name)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `read_txt_file(file_name)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/file_reader.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |         return read_atsp_file(file_name)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `read_atsp_file(file_name)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/file_reader.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         return read_tsp_file(file_name)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `read_tsp_file(file_name)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/file_reader.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     return matrix;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `matrix`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/file_reader.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 | /     return cleared_line.split_whitespace()
[INFO] [stderr] 72 | |         .map(|s| s.parse().unwrap())
[INFO] [stderr] 73 | |         .collect();
[INFO] [stderr]    | |___________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 71 |     cleared_line.split_whitespace()
[INFO] [stderr] 72 |         .map(|s| s.parse().unwrap())
[INFO] [stderr] 73 |         .collect()
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/file_reader.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 |     return matrix;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `matrix`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/file_reader.rs:134:5
[INFO] [stderr]     |
[INFO] [stderr] 134 |     return matrix;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `matrix`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/file_reader.rs:143:5
[INFO] [stderr]     |
[INFO] [stderr] 143 |     return distance_power_sum.sqrt() as i32;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `distance_power_sum.sqrt() as i32`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/file_reader.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     return matrix;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `matrix`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this is an `else if` but the formatting might hide it
[INFO] [stderr]    --> src/file_reader.rs:185:18
[INFO] [stderr]     |
[INFO] [stderr] 185 |                   } else
[INFO] [stderr]     |  __________________^
[INFO] [stderr] 186 | |
[INFO] [stderr] 187 | |                 // Jeżeli linia jest linią macierzy i nie jest EOF
[INFO] [stderr] 188 | |                 if current_line > 6 && !line.contains("EOF") {
[INFO] [stderr]     | |________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::suspicious_else_formatting)] on by default
[INFO] [stderr]     = note: to remove this lint, remove the `else` or remove the new line between `else` and `if`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_else_formatting
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/graph_generator.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     return matrix;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `matrix`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/tabu_search.rs:20:39
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut current_path_value: i32 = 9999999999;
[INFO] [stderr]    |                                       ^^^^^^^^^^ help: consider: `9_999_999_999`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/tabu_search.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut best_path_value: i32 = 9999999999;
[INFO] [stderr]    |                                    ^^^^^^^^^^ help: consider: `9_999_999_999`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/tabu_search.rs:61:52
[INFO] [stderr]    |
[INFO] [stderr] 61 |         if (elapsed_time >= (max_time_in_seconds * 1000000000)) && max_time_in_seconds != 0 {
[INFO] [stderr]    |                                                    ^^^^^^^^^^ help: consider: `1_000_000_000`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/tabu_search.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 130 |     return tabu_list;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `tabu_list`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/tabu_search.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 152 |     return value;
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: remove `return` as shown: `value`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/tabu_search.rs:186:5
[INFO] [stderr]     |
[INFO] [stderr] 186 |     return best_path;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `best_path`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/tabu_search.rs:162:36
[INFO] [stderr]     |
[INFO] [stderr] 162 |     let mut best_path_value: i32 = 99999999;
[INFO] [stderr]     |                                    ^^^^^^^^ help: consider: `99_999_999`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/file_reader.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         return read_txt_file(file_name)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `read_txt_file(file_name)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/file_reader.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |         return read_atsp_file(file_name)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `read_atsp_file(file_name)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/file_reader.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         return read_tsp_file(file_name)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `read_tsp_file(file_name)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/file_reader.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     return matrix;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `matrix`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/file_reader.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 | /     return cleared_line.split_whitespace()
[INFO] [stderr] 72 | |         .map(|s| s.parse().unwrap())
[INFO] [stderr] 73 | |         .collect();
[INFO] [stderr]    | |___________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 71 |     cleared_line.split_whitespace()
[INFO] [stderr] 72 |         .map(|s| s.parse().unwrap())
[INFO] [stderr] 73 |         .collect()
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/file_reader.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 |     return matrix;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `matrix`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/file_reader.rs:134:5
[INFO] [stderr]     |
[INFO] [stderr] 134 |     return matrix;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `matrix`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/file_reader.rs:143:5
[INFO] [stderr]     |
[INFO] [stderr] 143 |     return distance_power_sum.sqrt() as i32;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `distance_power_sum.sqrt() as i32`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/file_reader.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     return matrix;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `matrix`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this is an `else if` but the formatting might hide it
[INFO] [stderr]    --> src/file_reader.rs:185:18
[INFO] [stderr]     |
[INFO] [stderr] 185 |                   } else
[INFO] [stderr]     |  __________________^
[INFO] [stderr] 186 | |
[INFO] [stderr] 187 | |                 // Jeżeli linia jest linią macierzy i nie jest EOF
[INFO] [stderr] 188 | |                 if current_line > 6 && !line.contains("EOF") {
[INFO] [stderr]     | |________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::suspicious_else_formatting)] on by default
[INFO] [stderr]     = note: to remove this lint, remove the `else` or remove the new line between `else` and `if`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_else_formatting
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/graph_generator.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     return matrix;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `matrix`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/tabu_search.rs:20:39
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut current_path_value: i32 = 9999999999;
[INFO] [stderr]    |                                       ^^^^^^^^^^ help: consider: `9_999_999_999`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/tabu_search.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut best_path_value: i32 = 9999999999;
[INFO] [stderr]    |                                    ^^^^^^^^^^ help: consider: `9_999_999_999`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/tabu_search.rs:61:52
[INFO] [stderr]    |
[INFO] [stderr] 61 |         if (elapsed_time >= (max_time_in_seconds * 1000000000)) && max_time_in_seconds != 0 {
[INFO] [stderr]    |                                                    ^^^^^^^^^^ help: consider: `1_000_000_000`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/tabu_search.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 130 |     return tabu_list;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `tabu_list`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/tabu_search.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 152 |     return value;
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: remove `return` as shown: `value`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/tabu_search.rs:186:5
[INFO] [stderr]     |
[INFO] [stderr] 186 |     return best_path;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `best_path`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/tabu_search.rs:162:36
[INFO] [stderr]     |
[INFO] [stderr] 162 |     let mut best_path_value: i32 = 99999999;
[INFO] [stderr]     |                                    ^^^^^^^^ help: consider: `99_999_999`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `current_path_value` is never read
[INFO] [stderr]   --> src/tabu_search.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut current_path_value: i32 = 9999999999;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `best_path_value` is never read
[INFO] [stderr]   --> src/tabu_search.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut best_path_value: i32 = 9999999999;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `current_path_value` is never read
[INFO] [stderr]   --> src/tabu_search.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut current_path_value: i32 = 9999999999;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `best_path_value` is never read
[INFO] [stderr]   --> src/tabu_search.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut best_path_value: i32 = 9999999999;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_tabu_list`
[INFO] [stderr]   --> src/print_utils.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn print_tabu_list(tabu_list: &Vec<Vec<i32>>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_result`
[INFO] [stderr]   --> src/print_utils.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn print_result(result: i32, result_path: Vec<i32>, elapsed_time: i64) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `node_list`
[INFO] [stderr]    --> src/file_reader.rs:119:18
[INFO] [stderr]     |
[INFO] [stderr] 119 |         for j in 0..node_list.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 119 |         for (j, <item>) in node_list.iter().enumerate() {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `parsed_line`.
[INFO] [stderr]    --> src/file_reader.rs:194:30
[INFO] [stderr]     |
[INFO] [stderr] 194 |                     for i in 0..(parsed_line.len() as usize) {
[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] 194 |                     for <item> in parsed_line.iter().take((parsed_line.len() as usize)) {
[INFO] [stderr]     |                         ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/file_reader.rs:209:9
[INFO] [stderr]     |
[INFO] [stderr] 209 |         current_line = current_line + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `current_line += 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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/print_utils.rs:2:29
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn print_matrix(matrix: &Vec<Vec<i32>>) {
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^ help: change this to: `&[Vec<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/print_utils.rs:10:35
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn print_tabu_list(tabu_list: &Vec<Vec<i32>>) {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^ help: change this to: `&[Vec<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: literal out of range for i32
[INFO] [stderr]   --> src/tabu_search.rs:20:39
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut current_path_value: i32 = 9999999999;
[INFO] [stderr]    |                                       ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(overflowing_literals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: literal out of range for i32
[INFO] [stderr]   --> src/tabu_search.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut best_path_value: i32 = 9999999999;
[INFO] [stderr]    |                                    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/tabu_search.rs:44:23
[INFO] [stderr]    |
[INFO] [stderr] 44 |     best_path_value = current_path_value.clone();
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `current_path_value`
[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/tabu_search.rs:67:36
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let iteration_path_value = current_path_value.clone();
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `current_path_value`
[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/tabu_search.rs:77:31
[INFO] [stderr]    |
[INFO] [stderr] 77 |             best_path_value = current_path_value.clone();
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `current_path_value`
[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: the loop variable `i` is only used to index `tabu_list`.
[INFO] [stderr]   --> src/tabu_search.rs:88:18
[INFO] [stderr]    |
[INFO] [stderr] 88 |         for i in 0..matrix.len() {
[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] 88 |         for <item> in tabu_list.iter_mut().take(matrix.len()) {
[INFO] [stderr]    |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/tabu_search.rs:91:21
[INFO] [stderr]    |
[INFO] [stderr] 91 |                     tabu_list[i][j] = tabu_list[i][j] - 1;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `tabu_list[i][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/tabu_search.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |             critical_events = critical_events + 1;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `critical_events += 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/tabu_search.rs:133:35
[INFO] [stderr]     |
[INFO] [stderr] 133 | fn get_current_path_value(matrix: &Vec<Vec<i32>>,
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: change this to: `&[Vec<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: manual implementation of an assign operation
[INFO] [stderr]    --> src/tabu_search.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |         value = value + matrix[previous_node][(path[(i as usize)] as usize)];
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `value += matrix[previous_node][(path[(i as usize)] as usize)]`
[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/tabu_search.rs:150:5
[INFO] [stderr]     |
[INFO] [stderr] 150 |     value = value + matrix[previous_node][0];
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `value += matrix[previous_node][0]`
[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/tabu_search.rs:157:26
[INFO] [stderr]     |
[INFO] [stderr] 157 |                  matrix: &Vec<Vec<i32>>,
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^ help: change this to: `&[Vec<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: function is never used: `print_tabu_list`
[INFO] [stderr]   --> src/print_utils.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn print_tabu_list(tabu_list: &Vec<Vec<i32>>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_result`
[INFO] [stderr]   --> src/print_utils.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn print_result(result: i32, result_path: Vec<i32>, elapsed_time: i64) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `node_list`
[INFO] [stderr]    --> src/file_reader.rs:119:18
[INFO] [stderr]     |
[INFO] [stderr] 119 |         for j in 0..node_list.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 119 |         for (j, <item>) in node_list.iter().enumerate() {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `parsed_line`.
[INFO] [stderr]    --> src/file_reader.rs:194:30
[INFO] [stderr]     |
[INFO] [stderr] 194 |                     for i in 0..(parsed_line.len() as usize) {
[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] 194 |                     for <item> in parsed_line.iter().take((parsed_line.len() as usize)) {
[INFO] [stderr]     |                         ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/file_reader.rs:209:9
[INFO] [stderr]     |
[INFO] [stderr] 209 |         current_line = current_line + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `current_line += 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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/print_utils.rs:2:29
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn print_matrix(matrix: &Vec<Vec<i32>>) {
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^ help: change this to: `&[Vec<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/print_utils.rs:10:35
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn print_tabu_list(tabu_list: &Vec<Vec<i32>>) {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^ help: change this to: `&[Vec<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: literal out of range for i32
[INFO] [stderr]   --> src/tabu_search.rs:20:39
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut current_path_value: i32 = 9999999999;
[INFO] [stderr]    |                                       ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(overflowing_literals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: literal out of range for i32
[INFO] [stderr]   --> src/tabu_search.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut best_path_value: i32 = 9999999999;
[INFO] [stderr]    |                                    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/tabu_search.rs:44:23
[INFO] [stderr]    |
[INFO] [stderr] 44 |     best_path_value = current_path_value.clone();
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `current_path_value`
[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/tabu_search.rs:67:36
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let iteration_path_value = current_path_value.clone();
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `current_path_value`
[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/tabu_search.rs:77:31
[INFO] [stderr]    |
[INFO] [stderr] 77 |             best_path_value = current_path_value.clone();
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `current_path_value`
[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: the loop variable `i` is only used to index `tabu_list`.
[INFO] [stderr]   --> src/tabu_search.rs:88:18
[INFO] [stderr]    |
[INFO] [stderr] 88 |         for i in 0..matrix.len() {
[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] 88 |         for <item> in tabu_list.iter_mut().take(matrix.len()) {
[INFO] [stderr]    |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/tabu_search.rs:91:21
[INFO] [stderr]    |
[INFO] [stderr] 91 |                     tabu_list[i][j] = tabu_list[i][j] - 1;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `tabu_list[i][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/tabu_search.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |             critical_events = critical_events + 1;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `critical_events += 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/tabu_search.rs:133:35
[INFO] [stderr]     |
[INFO] [stderr] 133 | fn get_current_path_value(matrix: &Vec<Vec<i32>>,
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: change this to: `&[Vec<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: manual implementation of an assign operation
[INFO] [stderr]    --> src/tabu_search.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |         value = value + matrix[previous_node][(path[(i as usize)] as usize)];
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `value += matrix[previous_node][(path[(i as usize)] as usize)]`
[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/tabu_search.rs:150:5
[INFO] [stderr]     |
[INFO] [stderr] 150 |     value = value + matrix[previous_node][0];
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `value += matrix[previous_node][0]`
[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/tabu_search.rs:157:26
[INFO] [stderr]     |
[INFO] [stderr] 157 |                  matrix: &Vec<Vec<i32>>,
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^ help: change this to: `&[Vec<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]     Finished dev [unoptimized + debuginfo] target(s) in 2.33s
[INFO] running `"docker" "inspect" "0f8ab1fda5eb1c6abb699d766acf4a2ae03d609483877470745a1badc730428f"`
[INFO] running `"docker" "rm" "-f" "0f8ab1fda5eb1c6abb699d766acf4a2ae03d609483877470745a1badc730428f"`
[INFO] [stdout] 0f8ab1fda5eb1c6abb699d766acf4a2ae03d609483877470745a1badc730428f