[INFO] updating cached repository rcoverick/rust_dailyprogrammer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rcoverick/rust_dailyprogrammer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rcoverick/rust_dailyprogrammer" "work/ex/clippy-test-run/sources/stable/gh/rcoverick/rust_dailyprogrammer"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/rcoverick/rust_dailyprogrammer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rcoverick/rust_dailyprogrammer" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rcoverick/rust_dailyprogrammer"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rcoverick/rust_dailyprogrammer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7eba5007eb1ec145617b2771d020da0663dd7473
[INFO] sha for GitHub repo rcoverick/rust_dailyprogrammer: 7eba5007eb1ec145617b2771d020da0663dd7473
[INFO] validating manifest of rcoverick/rust_dailyprogrammer 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 rcoverick/rust_dailyprogrammer 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 rcoverick/rust_dailyprogrammer
[INFO] finished frobbing rcoverick/rust_dailyprogrammer
[INFO] frobbed toml for rcoverick/rust_dailyprogrammer written to work/ex/clippy-test-run/sources/stable/gh/rcoverick/rust_dailyprogrammer/Cargo.toml
[INFO] started frobbing rcoverick/rust_dailyprogrammer
[INFO] finished frobbing rcoverick/rust_dailyprogrammer
[INFO] frobbed toml for rcoverick/rust_dailyprogrammer written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rcoverick/rust_dailyprogrammer/Cargo.toml
[INFO] crate rcoverick/rust_dailyprogrammer 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 rcoverick/rust_dailyprogrammer against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rcoverick/rust_dailyprogrammer:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dclippy::into_iter_on_array" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3521c9f5eebe65010edf168da32ea77753804e8ffc2318a3f52a2cf55bb8624c
[INFO] running `"docker" "start" "-a" "3521c9f5eebe65010edf168da32ea77753804e8ffc2318a3f52a2cf55bb8624c"`
[INFO] [stderr]     Checking dailyprogrammer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]   --> src/challenge/easy/kid_lotto.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         println!("");
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |         let j = (b * height) + a;
[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/challenge/intermediate/pgm_manipulation.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let j = (b * height) + a;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[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: using `println!("")`
[INFO] [stderr]    --> src/challenge/intermediate/pgm_manipulation.rs:139:5
[INFO] [stderr]     |
[INFO] [stderr] 139 |     println!("");
[INFO] [stderr]     |     ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]   --> src/challenge/easy/kid_lotto.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         println!("");
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |         let j = (b * height) + a;
[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/challenge/intermediate/pgm_manipulation.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let j = (b * height) + a;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[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: using `println!("")`
[INFO] [stderr]    --> src/challenge/intermediate/pgm_manipulation.rs:139:5
[INFO] [stderr]     |
[INFO] [stderr] 139 |     println!("");
[INFO] [stderr]     |     ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/challenge/easy/little_accountant.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 | /             if acctnr == entry.0 {
[INFO] [stderr] 68 | |                 if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year{
[INFO] [stderr] 69 | |                     if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 70 | |                         debit += entry.2;
[INFO] [stderr] 71 | |                     }
[INFO] [stderr] 72 | |                 }        
[INFO] [stderr] 73 | |             }
[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] 67 |             if acctnr == entry.0 && entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year {
[INFO] [stderr] 68 |     if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 69 |         debit += entry.2;
[INFO] [stderr] 70 |     }
[INFO] [stderr] 71 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/challenge/easy/little_accountant.rs:68:17
[INFO] [stderr]    |
[INFO] [stderr] 68 | /                 if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year{
[INFO] [stderr] 69 | |                     if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 70 | |                         debit += entry.2;
[INFO] [stderr] 71 | |                     }
[INFO] [stderr] 72 | |                 }        
[INFO] [stderr]    | |_________________^
[INFO] [stderr]    |
[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] 68 |                 if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year && entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon {
[INFO] [stderr] 69 |     debit += entry.2;
[INFO] [stderr] 70 | }        
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/challenge/easy/little_accountant.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 | /             if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year{
[INFO] [stderr] 78 | |                 if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 79 | |                     debit += entry.2;
[INFO] [stderr] 80 | |                 }
[INFO] [stderr] 81 | |             }
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[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] 77 |             if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year && entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon {
[INFO] [stderr] 78 |     debit += entry.2;
[INFO] [stderr] 79 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/challenge/easy/little_accountant.rs:93:13
[INFO] [stderr]    |
[INFO] [stderr] 93 | /             if acctnr == entry.0 {
[INFO] [stderr] 94 | |                 if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year{
[INFO] [stderr] 95 | |                     if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 96 | |                         credit += entry.3;
[INFO] [stderr] 97 | |                     }
[INFO] [stderr] 98 | |                 }   
[INFO] [stderr] 99 | |             }
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[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] 93 |             if acctnr == entry.0 && entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year {
[INFO] [stderr] 94 |     if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 95 |         credit += entry.3;
[INFO] [stderr] 96 |     }
[INFO] [stderr] 97 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/challenge/easy/little_accountant.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 | /                 if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year{
[INFO] [stderr] 95 | |                     if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 96 | |                         credit += entry.3;
[INFO] [stderr] 97 | |                     }
[INFO] [stderr] 98 | |                 }   
[INFO] [stderr]    | |_________________^
[INFO] [stderr]    |
[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] 94 |                 if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year && entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon {
[INFO] [stderr] 95 |     credit += entry.3;
[INFO] [stderr] 96 | }   
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 | /             if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year{
[INFO] [stderr] 104 | |                 if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 105 | |                     credit += entry.3;
[INFO] [stderr] 106 | |                 }
[INFO] [stderr] 107 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[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] 103 |             if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year && entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon {
[INFO] [stderr] 104 |     credit += entry.3;
[INFO] [stderr] 105 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:195:5
[INFO] [stderr]     |
[INFO] [stderr] 195 | /     if target.tm_year >= start.tm_year && target.tm_year <= end.tm_year{
[INFO] [stderr] 196 | |         if target.tm_mon >= start.tm_mon && target.tm_mon <= end.tm_mon{
[INFO] [stderr] 197 | |             return true;
[INFO] [stderr] 198 | |         }
[INFO] [stderr] 199 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/challenge/easy/little_accountant.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 | /             if acctnr == entry.0 {
[INFO] [stderr] 68 | |                 if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year{
[INFO] [stderr] 69 | |                     if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 70 | |                         debit += entry.2;
[INFO] [stderr] 71 | |                     }
[INFO] [stderr] 72 | |                 }        
[INFO] [stderr] 73 | |             }
[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] 67 |             if acctnr == entry.0 && entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year {
[INFO] [stderr] 68 |     if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 69 |         debit += entry.2;
[INFO] [stderr] 70 |     }
[INFO] [stderr] 71 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/challenge/easy/little_accountant.rs:68:17
[INFO] [stderr]    |
[INFO] [stderr] 68 | /                 if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year{
[INFO] [stderr] 69 | |                     if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 70 | |                         debit += entry.2;
[INFO] [stderr] 71 | |                     }
[INFO] [stderr] 72 | |                 }        
[INFO] [stderr]    | |_________________^
[INFO] [stderr]    |
[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] 68 |                 if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year && entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon {
[INFO] [stderr] 69 |     debit += entry.2;
[INFO] [stderr] 70 | }        
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/challenge/easy/little_accountant.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 | /             if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year{
[INFO] [stderr] 78 | |                 if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 79 | |                     debit += entry.2;
[INFO] [stderr] 80 | |                 }
[INFO] [stderr] 81 | |             }
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[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] 77 |             if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year && entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon {
[INFO] [stderr] 78 |     debit += entry.2;
[INFO] [stderr] 79 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/challenge/easy/little_accountant.rs:93:13
[INFO] [stderr]    |
[INFO] [stderr] 93 | /             if acctnr == entry.0 {
[INFO] [stderr] 94 | |                 if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year{
[INFO] [stderr] 95 | |                     if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 96 | |                         credit += entry.3;
[INFO] [stderr] 97 | |                     }
[INFO] [stderr] 98 | |                 }   
[INFO] [stderr] 99 | |             }
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[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] 93 |             if acctnr == entry.0 && entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year {
[INFO] [stderr] 94 |     if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 95 |         credit += entry.3;
[INFO] [stderr] 96 |     }
[INFO] [stderr] 97 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/challenge/easy/little_accountant.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 | /                 if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year{
[INFO] [stderr] 95 | |                     if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 96 | |                         credit += entry.3;
[INFO] [stderr] 97 | |                     }
[INFO] [stderr] 98 | |                 }   
[INFO] [stderr]    | |_________________^
[INFO] [stderr]    |
[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] 94 |                 if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year && entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon {
[INFO] [stderr] 95 |     credit += entry.3;
[INFO] [stderr] 96 | }   
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 | /             if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year{
[INFO] [stderr] 104 | |                 if entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon{
[INFO] [stderr] 105 | |                     credit += entry.3;
[INFO] [stderr] 106 | |                 }
[INFO] [stderr] 107 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[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] 103 |             if entry.1.tm_year >= start.tm_year && entry.1.tm_year <= end.tm_year && entry.1.tm_mon >= start.tm_mon && entry.1.tm_mon <= end.tm_mon {
[INFO] [stderr] 104 |     credit += entry.3;
[INFO] [stderr] 105 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:195:5
[INFO] [stderr]     |
[INFO] [stderr] 195 | /     if target.tm_year >= start.tm_year && target.tm_year <= end.tm_year{
[INFO] [stderr] 196 | |         if target.tm_mon >= start.tm_mon && target.tm_mon <= end.tm_mon{
[INFO] [stderr] 197 | |             return true;
[INFO] [stderr] 198 | |         }
[INFO] [stderr] 199 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[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] 195 |     if target.tm_year >= start.tm_year && target.tm_year <= end.tm_year && target.tm_mon >= start.tm_mon && target.tm_mon <= end.tm_mon {
[INFO] [stderr] 196 |     return true;
[INFO] [stderr] 197 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 195 |     if target.tm_year >= start.tm_year && target.tm_year <= end.tm_year && target.tm_mon >= start.tm_mon && target.tm_mon <= end.tm_mon {
[INFO] [stderr] 196 |     return true;
[INFO] [stderr] 197 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     ///Numerals need to be in order. Each pair of numerals can be swapped to form a different number. 
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     ///Numerals need to be in order. Each pair of numerals can be swapped to form a different number. 
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/challenge/easy/adding_calculator.rs:75:9
[INFO] [stderr]    |
[INFO] [stderr] 75 |         return CalculationResult::Ans(ans);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `CalculationResult::Ans(ans)`
[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/challenge/easy/adding_calculator.rs:80:9
[INFO] [stderr]    |
[INFO] [stderr] 80 |         return CalculationResult::Negative(ans);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `CalculationResult::Negative(ans)`
[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/challenge/easy/adding_calculator.rs:151:9
[INFO] [stderr]     |
[INFO] [stderr] 151 |         return CalculationResult::Ans(ans);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `CalculationResult::Ans(ans)`
[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/challenge/easy/adding_calculator.rs:155:9
[INFO] [stderr]     |
[INFO] [stderr] 155 |         return CalculationResult::NotIntegral;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `CalculationResult::NotIntegral`
[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: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |     io::stdin().read_to_string((&mut buf)).unwrap();
[INFO] [stderr]    |                                ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Consider removing unnecessary double parentheses
[INFO] [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |     io::stdin().read_to_string((&mut buf)).unwrap();
[INFO] [stderr]    |                                ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::double_parens)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/challenge/easy/adding_calculator.rs:75:9
[INFO] [stderr]    |
[INFO] [stderr] 75 |         return CalculationResult::Ans(ans);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `CalculationResult::Ans(ans)`
[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/challenge/easy/adding_calculator.rs:80:9
[INFO] [stderr]    |
[INFO] [stderr] 80 |         return CalculationResult::Negative(ans);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `CalculationResult::Negative(ans)`
[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/challenge/easy/adding_calculator.rs:151:9
[INFO] [stderr]     |
[INFO] [stderr] 151 |         return CalculationResult::Ans(ans);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `CalculationResult::Ans(ans)`
[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/challenge/easy/adding_calculator.rs:155:9
[INFO] [stderr]     |
[INFO] [stderr] 155 |         return CalculationResult::NotIntegral;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `CalculationResult::NotIntegral`
[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: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |     io::stdin().read_to_string((&mut buf)).unwrap();
[INFO] [stderr]    |                                ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Consider removing unnecessary double parentheses
[INFO] [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |     io::stdin().read_to_string((&mut buf)).unwrap();
[INFO] [stderr]    |                                ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::double_parens)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:38:41
[INFO] [stderr]    |
[INFO] [stderr] 38 |     res.chunks_mut(width as usize).map(|mut x| x.reverse()).count();
[INFO] [stderr]    |                                         ----^
[INFO] [stderr]    |                                         |
[INFO] [stderr]    |                                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:38:41
[INFO] [stderr]    |
[INFO] [stderr] 38 |     res.chunks_mut(width as usize).map(|mut x| x.reverse()).count();
[INFO] [stderr]    |                                         ----^
[INFO] [stderr]    |                                         |
[INFO] [stderr]    |                                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/challenge/easy/little_accountant.rs:45:37
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn verify_journal_balanced(journal: &Vec<(i32,time::Tm,i32,i32)>) -> Result<&str, &str>{
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(i32,time::Tm,i32,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/challenge/easy/little_accountant.rs:63:26
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn total_debits(journal: &Vec<(i32, time::Tm, i32, i32)>, acctnr: i32, start: &time::Tm, end: &time::Tm) -> i32{
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(i32, time::Tm, i32, 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/challenge/easy/little_accountant.rs:45:37
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn verify_journal_balanced(journal: &Vec<(i32,time::Tm,i32,i32)>) -> Result<&str, &str>{
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(i32,time::Tm,i32,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/challenge/easy/little_accountant.rs:63:26
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn total_debits(journal: &Vec<(i32, time::Tm, i32, i32)>, acctnr: i32, start: &time::Tm, end: &time::Tm) -> i32{
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(i32, time::Tm, i32, 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/challenge/easy/little_accountant.rs:89:27
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn total_credits(journal: &Vec<(i32, time::Tm, i32, i32)>, acctnr: i32, start: &time::Tm, end: &time::Tm) -> i32{
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(i32, time::Tm, i32, 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/challenge/easy/little_accountant.rs:89:27
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn total_credits(journal: &Vec<(i32, time::Tm, i32, i32)>, acctnr: i32, start: &time::Tm, end: &time::Tm) -> i32{
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(i32, time::Tm, i32, 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 `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:117:30
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn process_user_input(input: &String, journal: &Vec<(i32, time::Tm, i32, i32)>, acct_list: &Vec<(i32, String)> ) -> (i32,i32,time::Tm, time::Tm, String){
[INFO] [stderr]     |                              ^^^^^^^ help: change this to: `&str`
[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/challenge/easy/little_accountant.rs:117:48
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn process_user_input(input: &String, journal: &Vec<(i32, time::Tm, i32, i32)>, acct_list: &Vec<(i32, String)> ) -> (i32,i32,time::Tm, time::Tm, String){
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(i32, time::Tm, i32, 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/challenge/easy/little_accountant.rs:117:92
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn process_user_input(input: &String, journal: &Vec<(i32, time::Tm, i32, i32)>, acct_list: &Vec<(i32, String)> ) -> (i32,i32,time::Tm, time::Tm, String){
[INFO] [stderr]     |                                                                                            ^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(i32, String)]`
[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 `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:117:30
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn process_user_input(input: &String, journal: &Vec<(i32, time::Tm, i32, i32)>, acct_list: &Vec<(i32, String)> ) -> (i32,i32,time::Tm, time::Tm, String){
[INFO] [stderr]     |                              ^^^^^^^ help: change this to: `&str`
[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/challenge/easy/little_accountant.rs:117:48
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn process_user_input(input: &String, journal: &Vec<(i32, time::Tm, i32, i32)>, acct_list: &Vec<(i32, String)> ) -> (i32,i32,time::Tm, time::Tm, String){
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(i32, time::Tm, i32, 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/challenge/easy/little_accountant.rs:117:92
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn process_user_input(input: &String, journal: &Vec<(i32, time::Tm, i32, i32)>, acct_list: &Vec<(i32, String)> ) -> (i32,i32,time::Tm, time::Tm, String){
[INFO] [stderr]     |                                                                                            ^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(i32, String)]`
[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 creates an owned instance just for comparison
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:124:8
[INFO] [stderr]     |
[INFO] [stderr] 124 |     if fields[0].to_string() == "*"{
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^ help: try: `fields[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cmp_owned)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:135:8
[INFO] [stderr]     |
[INFO] [stderr] 135 |     if fields[1].to_string() == "*"{
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^ help: try: `fields[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:146:8
[INFO] [stderr]     |
[INFO] [stderr] 146 |     if fields[2].to_string() == "*"{        
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^ help: try: `fields[2]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:153:8
[INFO] [stderr]     |
[INFO] [stderr] 153 |     if fields[3].to_string() == "*"{
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^ help: try: `fields[3]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:124:8
[INFO] [stderr]     |
[INFO] [stderr] 124 |     if fields[0].to_string() == "*"{
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^ help: try: `fields[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cmp_owned)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:135:8
[INFO] [stderr]     |
[INFO] [stderr] 135 |     if fields[1].to_string() == "*"{
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^ help: try: `fields[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:146:8
[INFO] [stderr]     |
[INFO] [stderr] 146 |     if fields[2].to_string() == "*"{        
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^ help: try: `fields[2]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:180:50
[INFO] [stderr]     |
[INFO] [stderr] 180 | fn append_title_line(buffer: &mut String, style: &String) {
[INFO] [stderr]     |                                                  ^^^^^^^ help: change this to: `&str`
[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 creates an owned instance just for comparison
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:153:8
[INFO] [stderr]     |
[INFO] [stderr] 153 |     if fields[3].to_string() == "*"{
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^ help: try: `fields[3]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:180:50
[INFO] [stderr]     |
[INFO] [stderr] 180 | fn append_title_line(buffer: &mut String, style: &String) {
[INFO] [stderr]     |                                                  ^^^^^^^ help: change this to: `&str`
[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 `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:206:43
[INFO] [stderr]     |
[INFO] [stderr] 206 | fn append_data(buffer: &mut String, data: &String, style: &String){
[INFO] [stderr]     |                                           ^^^^^^^ help: change this to: `&str`
[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 `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:206:59
[INFO] [stderr]     |
[INFO] [stderr] 206 | fn append_data(buffer: &mut String, data: &String, style: &String){
[INFO] [stderr]     |                                                           ^^^^^^^ help: change this to: `&str`
[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/challenge/easy/little_accountant.rs:219:71
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn text_output(input: &(i32,i32,time::Tm, time::Tm, String), journal: &Vec<(i32, time::Tm, i32, i32)>, acct_list: &Vec<(i32, String)>){
[INFO] [stderr]     |                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(i32, time::Tm, i32, 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 `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:206:43
[INFO] [stderr]     |
[INFO] [stderr] 206 | fn append_data(buffer: &mut String, data: &String, style: &String){
[INFO] [stderr]     |                                           ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:219:115
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn text_output(input: &(i32,i32,time::Tm, time::Tm, String), journal: &Vec<(i32, time::Tm, i32, i32)>, acct_list: &Vec<(i32, String)>){
[INFO] [stderr]     |                                                                                                                   ^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(i32, String)]`
[INFO] [stderr] 
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:206:59
[INFO] [stderr]     |
[INFO] [stderr] 206 | fn append_data(buffer: &mut String, data: &String, style: &String){
[INFO] [stderr]     |                                                           ^^^^^^^ help: change this to: `&str`
[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] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:219:71
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn text_output(input: &(i32,i32,time::Tm, time::Tm, String), journal: &Vec<(i32, time::Tm, i32, i32)>, acct_list: &Vec<(i32, String)>){
[INFO] [stderr]     |                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(i32, time::Tm, i32, 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/challenge/easy/little_accountant.rs:219:115
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn text_output(input: &(i32,i32,time::Tm, time::Tm, String), journal: &Vec<(i32, time::Tm, i32, i32)>, acct_list: &Vec<(i32, String)>){
[INFO] [stderr]     |                                                                                                                   ^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(i32, String)]`
[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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:262:25
[INFO] [stderr]     |
[INFO] [stderr] 262 | /                         match acct_map.get(&entry.0){
[INFO] [stderr] 263 | |                             Some(desc) => {
[INFO] [stderr] 264 | |                                 append_data(&mut output, &desc, &input.4);
[INFO] [stderr] 265 | |                                 output.push_str(&separator);
[INFO] [stderr] ...   |
[INFO] [stderr] 269 | |                             }
[INFO] [stderr] 270 | |                         };
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 262 |                         if let Some(desc) = acct_map.get(&entry.0) {
[INFO] [stderr] 263 |     append_data(&mut output, &desc, &input.4);
[INFO] [stderr] 264 |     output.push_str(&separator);
[INFO] [stderr] 265 | };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:262:25
[INFO] [stderr]     |
[INFO] [stderr] 262 | /                         match acct_map.get(&entry.0){
[INFO] [stderr] 263 | |                             Some(desc) => {
[INFO] [stderr] 264 | |                                 append_data(&mut output, &desc, &input.4);
[INFO] [stderr] 265 | |                                 output.push_str(&separator);
[INFO] [stderr] ...   |
[INFO] [stderr] 269 | |                             }
[INFO] [stderr] 270 | |                         };
[INFO] [stderr]     | |_________________________^
[INFO] [stderr] warning: The function/method `append_data` doesn't need a mutable reference
[INFO] [stderr]     |
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:295:30
[INFO] [stderr]     |
[INFO] [stderr] 295 |     append_data(&mut output, &mut acct_debits.to_string(), &input.4);
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr]     |
[INFO] [stderr] help: try this
[INFO] [stderr]     = note: #[warn(clippy::unnecessary_mut_passed)] on by default
[INFO] [stderr]     |
[INFO] [stderr] 262 |                         if let Some(desc) = acct_map.get(&entry.0) {
[INFO] [stderr] 263 |     append_data(&mut output, &desc, &input.4);
[INFO] [stderr] 264 |     output.push_str(&separator);
[INFO] [stderr] 265 | };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed
[INFO] [stderr] 
[INFO] [stderr] warning: The function/method `append_data` doesn't need a mutable reference
[INFO] [stderr]    --> src/challenge/easy/little_accountant.rs:295:30
[INFO] [stderr]     |
[INFO] [stderr] 295 |     append_data(&mut output, &mut acct_debits.to_string(), &input.4);
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unnecessary_mut_passed)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/challenge/easy/kid_lotto.rs:17:48
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let roster:Vec<&str> = roster.trim().split(";").collect();
[INFO] [stderr]    |                                                ^^^ help: try using a char instead: `';'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/challenge/easy/kid_lotto.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |         for _ in 0..list_size+1{
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: use: `0..=list_size`
[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: single-character string constant used as pattern
[INFO] [stderr]   --> src/challenge/easy/kid_lotto.rs:17:48
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let roster:Vec<&str> = roster.trim().split(";").collect();
[INFO] [stderr]    |                                                ^^^ help: try using a char instead: `';'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/challenge/easy/kid_lotto.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 |             while roster[next_kid as usize].to_string() == kid.to_string() || lotto_list.contains_key(&kid.to_string()){
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `roster[next_kid as usize]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/challenge/easy/kid_lotto.rs:34:60
[INFO] [stderr]    |
[INFO] [stderr] 34 |             while roster[next_kid as usize].to_string() == kid.to_string() || lotto_list.contains_key(&kid.to_string()){
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^^ help: try: `*kid`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr] 
[INFO] [stderr]   --> src/challenge/easy/kid_lotto.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |         for _ in 0..list_size+1{
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: use: `0..=list_size`
[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: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/challenge/easy/kid_lotto.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 |             while roster[next_kid as usize].to_string() == kid.to_string() || lotto_list.contains_key(&kid.to_string()){
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `roster[next_kid as usize]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/challenge/easy/kid_lotto.rs:34:60
[INFO] [stderr]    |
[INFO] [stderr] 34 |             while roster[next_kid as usize].to_string() == kid.to_string() || lotto_list.contains_key(&kid.to_string()){
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^^ help: try: `*kid`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 |     for m in [1000].into_iter(){
[INFO] [stderr]   |                     ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]   |
[INFO] [stderr]   = note: requested on the command line with `-D clippy::into-iter-on-array`
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:6:30
[INFO] [stderr]   |
[INFO] [stderr] 6 |         for cd in [400, 600].into_iter(){
[INFO] [stderr]   |                              ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 |     for m in [1000].into_iter(){
[INFO] [stderr]   |                     ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]   |
[INFO] [stderr]   = note: requested on the command line with `-D clippy::into-iter-on-array`
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:7:31
[INFO] [stderr]   |
[INFO] [stderr] 7 |             for xl in [40,60].into_iter(){
[INFO] [stderr]   |                               ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:6:30
[INFO] [stderr]   |
[INFO] [stderr] 6 |         for cd in [400, 600].into_iter(){
[INFO] [stderr]   |                              ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]   |
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:8:34
[INFO] [stderr]   |
[INFO] [stderr] 8 |                 for  iv in [4,6].into_iter(){
[INFO] [stderr]   |                                  ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:7:31
[INFO] [stderr]   |
[INFO] [stderr] 7 |             for xl in [40,60].into_iter(){
[INFO] [stderr]   |                               ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:8:34
[INFO] [stderr]   |
[INFO] [stderr] 8 |                 for  iv in [4,6].into_iter(){
[INFO] [stderr]   |                                  ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[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/challenge/easy/jolly_jumpers.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn jolly(numbers: &Vec<i32>) -> bool{
[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/challenge/easy/jolly_jumpers.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn jolly(numbers: &Vec<i32>) -> bool{
[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: single-character string constant used as pattern
[INFO] [stderr]   --> src/challenge/easy/jolly_jumpers.rs:42:51
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let numbers:Vec<i32> = input.trim().split(" ")
[INFO] [stderr]    |                                                   ^^^ help: try using a char instead: `' '`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/challenge/easy/jolly_jumpers.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 | /         match jolly(&numbers){
[INFO] [stderr] 48 | |             true => {
[INFO] [stderr] 49 | |                 println!("{} - JOLLY", input.trim());
[INFO] [stderr] 50 | |             },
[INFO] [stderr] ...  |
[INFO] [stderr] 53 | |             }
[INFO] [stderr] 54 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/challenge/easy/jolly_jumpers.rs:42:51
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let numbers:Vec<i32> = input.trim().split(" ")
[INFO] [stderr]    |                                                   ^^^ help: try using a char instead: `' '`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_bool)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] help: consider using an if/else expression
[INFO] [stderr]    |
[INFO] [stderr]    |
[INFO] [stderr] 47 |         if jolly(&numbers) {
[INFO] [stderr] 48 |     println!("{} - JOLLY", input.trim());
[INFO] [stderr] 49 | } else {
[INFO] [stderr] 50 |     println!("{} - NOT JOLLY", input.trim());
[INFO] [stderr] 51 | }
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/challenge/easy/jolly_jumpers.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 | /         match jolly(&numbers){
[INFO] [stderr] 48 | |             true => {
[INFO] [stderr] 49 | |                 println!("{} - JOLLY", input.trim());
[INFO] [stderr] 50 | |             },
[INFO] [stderr] ...  |
[INFO] [stderr] 53 | |             }
[INFO] [stderr] 54 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_bool)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] help: consider using an if/else expression
[INFO] [stderr]    |
[INFO] [stderr] 47 |         if jolly(&numbers) {
[INFO] [stderr] 48 |     println!("{} - JOLLY", input.trim());
[INFO] [stderr] 49 | } else {
[INFO] [stderr] 50 |     println!("{} - NOT JOLLY", input.trim());
[INFO] [stderr] 51 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this .into_iter() call is equivalent to .iter() and will not move the slice
[INFO] [stderr]  --> src/challenge/easy/subset_sum.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 |         i.into_iter().any(|x| vector.binary_search(&(*x * -1)).is_ok())
[INFO] [stderr]   |           ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::into_iter_on_ref)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this .into_iter() call is equivalent to .iter() and will not move the slice
[INFO] [stderr]  --> src/challenge/easy/subset_sum.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 |         i.into_iter().any(|x| vector.binary_search(&(*x * -1)).is_ok())
[INFO] [stderr]   |           ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::into_iter_on_ref)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/challenge/intermediate/subnet_calc.rs:17:46
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut v:Vec<&str> = input.trim().split("\n").collect();
[INFO] [stderr]    |                                              ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/challenge/intermediate/subnet_calc.rs:17:46
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut v:Vec<&str> = input.trim().split("\n").collect();
[INFO] [stderr]    |                                              ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/challenge/intermediate/subnet_calc.rs:27:46
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let address: Vec<&str> = ip.trim().split(".").collect();
[INFO] [stderr]    |                                              ^^^ help: try using a char instead: `'.'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `octect` is only used to index `address`.
[INFO] [stderr]   --> src/challenge/intermediate/subnet_calc.rs:29:19
[INFO] [stderr]    |
[INFO] [stderr] 29 |     for octect in 0..address.len()-1{
[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] 29 |     for <item> in address.iter().take(address.len()-1){
[INFO] [stderr]    |         ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/challenge/intermediate/subnet_calc.rs:27:46
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let address: Vec<&str> = ip.trim().split(".").collect();
[INFO] [stderr]    |                                              ^^^ help: try using a char instead: `'.'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `octect` is only used to index `address`.
[INFO] [stderr]   --> src/challenge/intermediate/subnet_calc.rs:29:19
[INFO] [stderr]    |
[INFO] [stderr] 29 |     for octect in 0..address.len()-1{
[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] 29 |     for <item> in address.iter().take(address.len()-1){
[INFO] [stderr]    |         ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/challenge/intermediate/subnet_calc.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         result = result | address[octect].parse::<u32>().unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `result |= address[octect].parse::<u32>().unwrap()`
[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/challenge/intermediate/subnet_calc.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         result = result | address[octect].parse::<u32>().unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `result |= address[octect].parse::<u32>().unwrap()`
[INFO] [stderr]    |
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]   --> src/challenge/intermediate/subnet_calc.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     result = result | address[address.len()-1].parse::<u32>().unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `result |= address[address.len()-1].parse::<u32>().unwrap()`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[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/challenge/intermediate/subnet_calc.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     result = result | address[address.len()-1].parse::<u32>().unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `result |= address[address.len()-1].parse::<u32>().unwrap()`
[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: single-character string constant used as pattern
[INFO] [stderr]   --> src/challenge/intermediate/subnet_calc.rs:52:41
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let parts: Vec<&str> = ip.split("/").collect();
[INFO] [stderr]    |                                         ^^^ help: try using a char instead: `'/'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/challenge/intermediate/subnet_calc.rs:81:31
[INFO] [stderr]    |
[INFO] [stderr] 81 |             minimal_set.push((addr.0.clone(), addr.1.clone(), addr.2.clone()));
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^ help: try removing the `clone` call: `addr.0`
[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/challenge/intermediate/subnet_calc.rs:81:47
[INFO] [stderr]    |
[INFO] [stderr] 81 |             minimal_set.push((addr.0.clone(), addr.1.clone(), addr.2.clone()));
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^ help: try removing the `clone` call: `addr.1`
[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: single-character string constant used as pattern
[INFO] [stderr]   --> src/challenge/intermediate/subnet_calc.rs:52:41
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let parts: Vec<&str> = ip.split("/").collect();
[INFO] [stderr]    |                                         ^^^ help: try using a char instead: `'/'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/challenge/intermediate/subnet_calc.rs:81:31
[INFO] [stderr]    |
[INFO] [stderr] 81 |             minimal_set.push((addr.0.clone(), addr.1.clone(), addr.2.clone()));
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^ help: try removing the `clone` call: `addr.0`
[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/challenge/intermediate/subnet_calc.rs:81:47
[INFO] [stderr]    |
[INFO] [stderr] 81 |             minimal_set.push((addr.0.clone(), addr.1.clone(), addr.2.clone()));
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^ help: try removing the `clone` call: `addr.1`
[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: this looks like you are swapping elements of `v` manually
[INFO] [stderr]  --> src/challenge/intermediate/next_largest_number.rs:7:2
[INFO] [stderr]   |
[INFO] [stderr] 7 |       let swap = v[i];
[INFO] [stderr]   |  _____^
[INFO] [stderr] 8 | |     v[i]=v[j];
[INFO] [stderr] 9 | |     v[j] =swap;
[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: taken reference of right operand
[INFO] [stderr]   --> src/challenge/intermediate/next_largest_number.rs:45:19
[INFO] [stderr]    |
[INFO] [stderr] 45 |                         .filter(|x| *x > &input )
[INFO] [stderr]    |                                     ^^^^^------
[INFO] [stderr]    |                                          |
[INFO] [stderr]    |                                          help: use the right value directly: `input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[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/challenge/intermediate/pgm_manipulation.rs:7:25
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn meta_tuple<'a>(meta: &Vec<&'a str>) -> (i32,i32,i32) {
[INFO] [stderr]   |                         ^^^^^^^^^^^^^ help: change this to: `&[&'a str]`
[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/challenge/intermediate/next_largest_number.rs:7:2
[INFO] [stderr]   |
[INFO] [stderr] 7 |       let swap = v[i];
[INFO] [stderr]   |  _____^
[INFO] [stderr] 8 | |     v[i]=v[j];
[INFO] [stderr] 9 | |     v[j] =swap;
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:17:19
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn read_img(meta: &Vec<&str>) -> Result<Vec<i32>, &'static str> {
[INFO] [stderr]    |                   ^^^^^^^^^^ help: change this to: `&[&str]`
[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/challenge/intermediate/pgm_manipulation.rs:34:31
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn flip_horizontal <'a> (img: &Vec<i32>, pgm_meta: &Vec<&'a str>) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                               ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] help: change this to
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn flip_horizontal <'a> (img: &[i32], pgm_meta: &Vec<&'a str>) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                               ^^^^^^
[INFO] [stderr] help: change `img.clone()` to
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let mut res = img.to_owned();
[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/challenge/intermediate/pgm_manipulation.rs:34:52
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn flip_horizontal <'a> (img: &Vec<i32>, pgm_meta: &Vec<&'a str>) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] help: change this to
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn flip_horizontal <'a> (img: &Vec<i32>, pgm_meta: &[&'a str]) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                                                    ^^^^^^^^^^
[INFO] [stderr] help: change `pgm_meta.clone()` to
[INFO] [stderr]    |
[INFO] [stderr] 40 |     (res, pgm_meta.to_owned())  
[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/challenge/intermediate/pgm_manipulation.rs:44:54
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn flip_vertical <'a> (img: &mut Vec<i32>, pgm_meta: &Vec<&'a str>) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] help: change this to
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn flip_vertical <'a> (img: &mut Vec<i32>, pgm_meta: &[&'a str]) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                                                      ^^^^^^^^^^
[INFO] [stderr] help: change `pgm_meta.clone()` to
[INFO] [stderr]    |
[INFO] [stderr] 53 |     (res, pgm_meta.to_owned())
[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/challenge/intermediate/pgm_manipulation.rs:62:51
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn rotate_right<'a>(img: &mut Vec<i32>, pgm_meta: &Vec<&'a str>) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^ help: change this to: `&[&'a str]`
[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: taken reference of right operand
[INFO] [stderr]   --> src/challenge/intermediate/next_largest_number.rs:45:19
[INFO] [stderr]    |
[INFO] [stderr] 45 |                         .filter(|x| *x > &input )
[INFO] [stderr]    |                                     ^^^^^------
[INFO] [stderr]    |                                          |
[INFO] [stderr]    |                                          help: use the right value directly: `input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[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/challenge/intermediate/pgm_manipulation.rs:7:25
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn meta_tuple<'a>(meta: &Vec<&'a str>) -> (i32,i32,i32) {
[INFO] [stderr]   |                         ^^^^^^^^^^^^^ help: change this to: `&[&'a str]`
[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/challenge/intermediate/pgm_manipulation.rs:85:50
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rotate_left<'a>(img: &mut Vec<i32>, pgm_meta: &Vec<&'a str>) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^ help: change this to: `&[&'a str]`
[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/challenge/intermediate/pgm_manipulation.rs:17:19
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn read_img(meta: &Vec<&str>) -> Result<Vec<i32>, &'static str> {
[INFO] [stderr]    |                   ^^^^^^^^^^ help: change this to: `&[&str]`
[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/challenge/intermediate/pgm_manipulation.rs:34:31
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn flip_horizontal <'a> (img: &Vec<i32>, pgm_meta: &Vec<&'a str>) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                               ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] help: change this to
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn flip_horizontal <'a> (img: &[i32], pgm_meta: &Vec<&'a str>) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                               ^^^^^^
[INFO] [stderr] help: change `img.clone()` to
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let mut res = img.to_owned();
[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/challenge/intermediate/pgm_manipulation.rs:34:52
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn flip_horizontal <'a> (img: &Vec<i32>, pgm_meta: &Vec<&'a str>) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] help: change this to
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn flip_horizontal <'a> (img: &Vec<i32>, pgm_meta: &[&'a str]) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                                                    ^^^^^^^^^^
[INFO] [stderr] help: change `pgm_meta.clone()` to
[INFO] [stderr]    |
[INFO] [stderr] 40 |     (res, pgm_meta.to_owned())  
[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/challenge/intermediate/pgm_manipulation.rs:44:54
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn flip_vertical <'a> (img: &mut Vec<i32>, pgm_meta: &Vec<&'a str>) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] help: change this to
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn flip_vertical <'a> (img: &mut Vec<i32>, pgm_meta: &[&'a str]) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                                                      ^^^^^^^^^^
[INFO] [stderr] help: change `pgm_meta.clone()` to
[INFO] [stderr]    |
[INFO] [stderr] 53 |     (res, pgm_meta.to_owned())
[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/challenge/intermediate/pgm_manipulation.rs:62:51
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn rotate_right<'a>(img: &mut Vec<i32>, pgm_meta: &Vec<&'a str>) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^ help: change this to: `&[&'a str]`
[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/challenge/intermediate/pgm_manipulation.rs:85:50
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rotate_left<'a>(img: &mut Vec<i32>, pgm_meta: &Vec<&'a str>) -> (Vec<i32>, Vec<&'a str>){
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^ help: change this to: `&[&'a str]`
[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] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `dailyprogrammer`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `dailyprogrammer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3521c9f5eebe65010edf168da32ea77753804e8ffc2318a3f52a2cf55bb8624c"`
[INFO] running `"docker" "rm" "-f" "3521c9f5eebe65010edf168da32ea77753804e8ffc2318a3f52a2cf55bb8624c"`
[INFO] [stdout] 3521c9f5eebe65010edf168da32ea77753804e8ffc2318a3f52a2cf55bb8624c