[INFO] updating cached repository luiz-antonio/RustSample
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/luiz-antonio/RustSample
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/luiz-antonio/RustSample" "work/ex/clippy-test-run/sources/stable/gh/luiz-antonio/RustSample"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/luiz-antonio/RustSample'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/luiz-antonio/RustSample" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/luiz-antonio/RustSample"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/luiz-antonio/RustSample'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ec9ab5c19d79171250106706f28eefc0538793de
[INFO] sha for GitHub repo luiz-antonio/RustSample: ec9ab5c19d79171250106706f28eefc0538793de
[INFO] validating manifest of luiz-antonio/RustSample 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 luiz-antonio/RustSample 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 luiz-antonio/RustSample
[INFO] finished frobbing luiz-antonio/RustSample
[INFO] frobbed toml for luiz-antonio/RustSample written to work/ex/clippy-test-run/sources/stable/gh/luiz-antonio/RustSample/Cargo.toml
[INFO] started frobbing luiz-antonio/RustSample
[INFO] finished frobbing luiz-antonio/RustSample
[INFO] frobbed toml for luiz-antonio/RustSample written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/luiz-antonio/RustSample/Cargo.toml
[INFO] crate luiz-antonio/RustSample 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 luiz-antonio/RustSample against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/luiz-antonio/RustSample:/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] fc64b7b7e79fc7c36033b9f2dd33bdafacf178580a09c2aa11047ffc98502f87
[INFO] running `"docker" "start" "-a" "fc64b7b7e79fc7c36033b9f2dd33bdafacf178580a09c2aa11047ffc98502f87"`
[INFO] [stderr]     Checking RustSample v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/main.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let f = 'b';
[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: 6th binding whose name is just one char
[INFO] [stderr]   --> src/main.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let g = 2.5;
[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: 7th binding whose name is just one char
[INFO] [stderr]   --> src/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let h = 4 > 2;
[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: literal with an empty format string
[INFO] [stderr]    --> src/main.rs:143:38
[INFO] [stderr]     |
[INFO] [stderr] 143 |         Color::Red =>  println!("{}","r" ),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::print_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal
[INFO] [stderr] 
[INFO] [stderr] warning: literal with an empty format string
[INFO] [stderr]    --> src/main.rs:144:39
[INFO] [stderr]     |
[INFO] [stderr] 144 |         Color::Green => println!("{}","g" ),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal
[INFO] [stderr] 
[INFO] [stderr] warning: literal with an empty format string
[INFO] [stderr]    --> src/main.rs:145:39
[INFO] [stderr]     |
[INFO] [stderr] 145 |         Color::Blue => println!("{}", "b"),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal
[INFO] [stderr] 
[INFO] [stderr] warning: literal with an empty format string
[INFO] [stderr]    --> src/main.rs:146:49
[INFO] [stderr]     |
[INFO] [stderr] 146 |         Color::RgbColor(0,0,0) => println!("{}","black" ),
[INFO] [stderr]     |                                                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal
[INFO] [stderr] 
[INFO] [stderr] warning: literal with an empty format string
[INFO] [stderr]    --> src/main.rs:149:28
[INFO] [stderr]     |
[INFO] [stderr] 149 |         _ => println!("{}","qq coisa" )
[INFO] [stderr]     |                            ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:308:17
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let ((a,b),(c,d)) = combined;
[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: 6th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:308:19
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let ((a,b),(c,d)) = combined;
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:353:8
[INFO] [stderr]     |
[INFO] [stderr] 353 |    let e:Point3<u16,i32> = Point3 {x: 0, y:4};
[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: 5th binding whose name is just one char
[INFO] [stderr]   --> src/main.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let f = 'b';
[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: 6th binding whose name is just one char
[INFO] [stderr]   --> src/main.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let g = 2.5;
[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: 7th binding whose name is just one char
[INFO] [stderr]   --> src/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let h = 4 > 2;
[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: literal with an empty format string
[INFO] [stderr]    --> src/main.rs:143:38
[INFO] [stderr]     |
[INFO] [stderr] 143 |         Color::Red =>  println!("{}","r" ),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::print_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal
[INFO] [stderr] 
[INFO] [stderr] warning: literal with an empty format string
[INFO] [stderr]    --> src/main.rs:144:39
[INFO] [stderr]     |
[INFO] [stderr] 144 |         Color::Green => println!("{}","g" ),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal
[INFO] [stderr] 
[INFO] [stderr] warning: literal with an empty format string
[INFO] [stderr]    --> src/main.rs:145:39
[INFO] [stderr]     |
[INFO] [stderr] 145 |         Color::Blue => println!("{}", "b"),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal
[INFO] [stderr] 
[INFO] [stderr] warning: literal with an empty format string
[INFO] [stderr]    --> src/main.rs:146:49
[INFO] [stderr]     |
[INFO] [stderr] 146 |         Color::RgbColor(0,0,0) => println!("{}","black" ),
[INFO] [stderr]     |                                                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal
[INFO] [stderr] 
[INFO] [stderr] warning: literal with an empty format string
[INFO] [stderr]    --> src/main.rs:149:28
[INFO] [stderr]     |
[INFO] [stderr] 149 |         _ => println!("{}","qq coisa" )
[INFO] [stderr]     |                            ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:308:17
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let ((a,b),(c,d)) = combined;
[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: 6th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:308:19
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let ((a,b),(c,d)) = combined;
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:353:8
[INFO] [stderr]     |
[INFO] [stderr] 353 |    let e:Point3<u16,i32> = Point3 {x: 0, y:4};
[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: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let d = 12345678;
[INFO] [stderr]    |             ^^^^^^^^ help: consider: `12_345_678`
[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: Variant name ends with the enum's name
[INFO] [stderr]    --> src/main.rs:136:5
[INFO] [stderr]     |
[INFO] [stderr] 136 |     RgbColor(u8,u8,u8), // tuple
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::enum_variant_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stderr] 
[INFO] [stderr] warning: Variant name ends with the enum's name
[INFO] [stderr]    --> src/main.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8 } //Struct
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/main.rs:148:26
[INFO] [stderr]     |
[INFO] [stderr] 148 |         Color::CmykColor{cyan:_ , magenta:_, yellow:_ , black:255} => println!("black"),
[INFO] [stderr]     |                          ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unneeded_field_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/main.rs:148:35
[INFO] [stderr]     |
[INFO] [stderr] 148 |         Color::CmykColor{cyan:_ , magenta:_, yellow:_ , black:255} => println!("black"),
[INFO] [stderr]     |                                   ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/main.rs:148:46
[INFO] [stderr]     |
[INFO] [stderr] 148 |         Color::CmykColor{cyan:_ , magenta:_, yellow:_ , black:255} => println!("black"),
[INFO] [stderr]     |                                              ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Try with `CmykColor { black:255, .. }`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let d = 12345678;
[INFO] [stderr]    |             ^^^^^^^^ help: consider: `12_345_678`
[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: Variant name ends with the enum's name
[INFO] [stderr]    --> src/main.rs:136:5
[INFO] [stderr]     |
[INFO] [stderr] 136 |     RgbColor(u8,u8,u8), // tuple
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::enum_variant_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stderr] 
[INFO] [stderr] warning: Variant name ends with the enum's name
[INFO] [stderr]    --> src/main.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8 } //Struct
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/main.rs:148:26
[INFO] [stderr]     |
[INFO] [stderr] 148 |         Color::CmykColor{cyan:_ , magenta:_, yellow:_ , black:255} => println!("black"),
[INFO] [stderr]     |                          ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unneeded_field_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/main.rs:148:35
[INFO] [stderr]     |
[INFO] [stderr] 148 |         Color::CmykColor{cyan:_ , magenta:_, yellow:_ , black:255} => println!("black"),
[INFO] [stderr]     |                                   ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/main.rs:148:46
[INFO] [stderr]     |
[INFO] [stderr] 148 |         Color::CmykColor{cyan:_ , magenta:_, yellow:_ , black:255} => println!("black"),
[INFO] [stderr]     |                                              ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Try with `CmykColor { black:255, .. }`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `l`
[INFO] [stderr]    --> src/main.rs:126:9
[INFO] [stderr]     |
[INFO] [stderr] 126 |     let l = Line {
[INFO] [stderr]     |         ^ help: consider using `_l` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/main.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |     let value = unsafe {iof.i};
[INFO] [stderr]     |         ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]    --> src/main.rs:276:9
[INFO] [stderr]     |
[INFO] [stderr] 276 |     let u:&str = &letters;
[INFO] [stderr]     |         ^ help: consider using `_u` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/main.rs:301:10
[INFO] [stderr]     |
[INFO] [stderr] 301 |     let (a, b) = sp;
[INFO] [stderr]     |          ^ help: consider using `_a` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:301:13
[INFO] [stderr]     |
[INFO] [stderr] 301 |     let (a, b) = sp;
[INFO] [stderr]     |             ^ help: consider using `_b` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/main.rs:308:11
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let ((a,b),(c,d)) = combined;
[INFO] [stderr]     |           ^ help: consider using `_a` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:308:13
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let ((a,b),(c,d)) = combined;
[INFO] [stderr]     |             ^ help: consider using `_b` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/main.rs:308:17
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let ((a,b),(c,d)) = combined;
[INFO] [stderr]     |                 ^ help: consider using `_c` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]    --> src/main.rs:308:19
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let ((a,b),(c,d)) = combined;
[INFO] [stderr]     |                   ^ help: consider using `_d` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]    --> src/main.rs:321:9
[INFO] [stderr]     |
[INFO] [stderr] 321 |         z @ 9...11 => "lots of",
[INFO] [stderr]     |         ^ help: consider using `_z` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/main.rs:348:8
[INFO] [stderr]     |
[INFO] [stderr] 348 |    let a = Point2 {x:0, y:0};
[INFO] [stderr]     |        ^ help: consider using `_a` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:349:8
[INFO] [stderr]     |
[INFO] [stderr] 349 |    let b = Point2 {x: 1.2, y:3.4};
[INFO] [stderr]     |        ^ help: consider using `_b` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/main.rs:350:8
[INFO] [stderr]     |
[INFO] [stderr] 350 |    let c:Point2<u16> =  Point2 {x:0, y:4};
[INFO] [stderr]     |        ^ help: consider using `_c` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]    --> src/main.rs:351:8
[INFO] [stderr]     |
[INFO] [stderr] 351 |    let d:Point2<f64> = Point2 {x: 1.2, y:3.4};
[INFO] [stderr]     |        ^ help: consider using `_d` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:353:8
[INFO] [stderr]     |
[INFO] [stderr] 353 |    let e:Point3<u16,i32> = Point3 {x: 0, y:4};
[INFO] [stderr]     |        ^ help: consider using `_e` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `borrow_two`
[INFO] [stderr]    --> src/main.rs:412:9
[INFO] [stderr]     |
[INFO] [stderr] 412 |     let borrow_two = &mut two;
[INFO] [stderr]     |         ^^^^^^^^^^ help: consider using `_borrow_two` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/main.rs:169:5
[INFO] [stderr]     |
[INFO] [stderr] 169 |     unsafe { iof.i = 42};
[INFO] [stderr]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_unsafe)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MEANING_OF_LIFE`
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const MEANING_OF_LIFE:u8 = 42;// substitui todos os MEANING_OF_LIFE do codigo por 42
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `MYSTATIC`
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | static MYSTATIC:u8 = 123; // tem endereço de
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `typefun`
[INFO] [stderr]  --> src/main.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn typefun() {
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `if_statement`
[INFO] [stderr]   --> src/main.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn if_statement() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `while_and_loop`
[INFO] [stderr]   --> src/main.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn while_and_loop() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `for_loop`
[INFO] [stderr]   --> src/main.rs:83:1
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn for_loop() {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_statement`
[INFO] [stderr]   --> src/main.rs:92:1
[INFO] [stderr]    |
[INFO] [stderr] 92 | fn match_statement() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point`
[INFO] [stderr]    --> src/main.rs:106:1
[INFO] [stderr]     |
[INFO] [stderr] 106 | struct Point {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Line`
[INFO] [stderr]    --> src/main.rs:111:1
[INFO] [stderr]     |
[INFO] [stderr] 111 | struct Line {
[INFO] [stderr]     | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `structures`
[INFO] [stderr]    --> src/main.rs:116:1
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn structures() {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Color`
[INFO] [stderr]    --> src/main.rs:132:1
[INFO] [stderr]     |
[INFO] [stderr] 132 | enum Color {
[INFO] [stderr]     | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `enums`
[INFO] [stderr]    --> src/main.rs:140:1
[INFO] [stderr]     |
[INFO] [stderr] 140 | fn enums() {
[INFO] [stderr]     | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: union is never used: `IntOrFloat`
[INFO] [stderr]    --> src/main.rs:153:1
[INFO] [stderr]     |
[INFO] [stderr] 153 | union IntOrFloat {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `process_value`
[INFO] [stderr]    --> src/main.rs:158:1
[INFO] [stderr]     |
[INFO] [stderr] 158 | fn process_value(iof: IntOrFloat){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unions`
[INFO] [stderr]    --> src/main.rs:167:1
[INFO] [stderr]     |
[INFO] [stderr] 167 | fn unions() {
[INFO] [stderr]     | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `options`
[INFO] [stderr]    --> src/main.rs:176:1
[INFO] [stderr]     |
[INFO] [stderr] 176 | fn options() {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `arrays`
[INFO] [stderr]    --> src/main.rs:191:1
[INFO] [stderr]     |
[INFO] [stderr] 191 | fn arrays() {
[INFO] [stderr]     | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vectors`
[INFO] [stderr]    --> src/main.rs:218:1
[INFO] [stderr]     |
[INFO] [stderr] 218 | fn vectors() {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `use_slice`
[INFO] [stderr]    --> src/main.rs:245:1
[INFO] [stderr]     |
[INFO] [stderr] 245 | fn use_slice(slice: &mut[i32]){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `slices`
[INFO] [stderr]    --> src/main.rs:250:1
[INFO] [stderr]     |
[INFO] [stderr] 250 | fn slices() {
[INFO] [stderr]     | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `strings`
[INFO] [stderr]    --> src/main.rs:257:1
[INFO] [stderr]     |
[INFO] [stderr] 257 | fn strings() {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_and_product`
[INFO] [stderr]    --> src/main.rs:289:1
[INFO] [stderr]     |
[INFO] [stderr] 289 | fn sum_and_product(x: i32, y:i32) -> (i32, i32) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tuples`
[INFO] [stderr]    --> src/main.rs:293:1
[INFO] [stderr]     |
[INFO] [stderr] 293 | fn tuples() {
[INFO] [stderr]     | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `how_many`
[INFO] [stderr]    --> src/main.rs:317:1
[INFO] [stderr]     |
[INFO] [stderr] 317 | fn how_many(x:i32) -> &'static str {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pattern_matching`
[INFO] [stderr]    --> src/main.rs:326:1
[INFO] [stderr]     |
[INFO] [stderr] 326 | fn pattern_matching() {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point2`
[INFO] [stderr]    --> src/main.rs:339:1
[INFO] [stderr]     |
[INFO] [stderr] 339 | struct Point2<T> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point3`
[INFO] [stderr]    --> src/main.rs:343:1
[INFO] [stderr]     |
[INFO] [stderr] 343 | struct Point3<T,V> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `generics`
[INFO] [stderr]    --> src/main.rs:347:1
[INFO] [stderr]     |
[INFO] [stderr] 347 | fn generics() {
[INFO] [stderr]     | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_value`
[INFO] [stderr]    --> src/main.rs:355:1
[INFO] [stderr]     |
[INFO] [stderr] 355 | fn print_value(x: i32){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `increase`
[INFO] [stderr]    --> src/main.rs:358:1
[INFO] [stderr]     |
[INFO] [stderr] 358 | fn increase(x: &mut i32){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `product`
[INFO] [stderr]    --> src/main.rs:361:1
[INFO] [stderr]     |
[INFO] [stderr] 361 | fn product(x: i32, y: i32) -> i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `functions`
[INFO] [stderr]    --> src/main.rs:364:1
[INFO] [stderr]     |
[INFO] [stderr] 364 | fn functions() {
[INFO] [stderr]     | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point4`
[INFO] [stderr]    --> src/main.rs:377:1
[INFO] [stderr]     |
[INFO] [stderr] 377 | struct Point4 {
[INFO] [stderr]     | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Line4`
[INFO] [stderr]    --> src/main.rs:381:1
[INFO] [stderr]     |
[INFO] [stderr] 381 | struct Line4 {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]    --> src/main.rs:386:5
[INFO] [stderr]     |
[INFO] [stderr] 386 |     fn len(&self) -> f64 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `methods`
[INFO] [stderr]    --> src/main.rs:392:1
[INFO] [stderr]     |
[INFO] [stderr] 392 | fn methods() {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `RustSample` should have a snake case name such as `rust_sample`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: some ranges overlap
[INFO] [stderr]   --> src/main.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |         1...999  => "unknown",
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_overlapping_arm)] on by default
[INFO] [stderr] note: overlaps with this
[INFO] [stderr]   --> src/main.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 98 |         7 => "Russia",
[INFO] [stderr]    |         ^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_overlapping_arm
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `b`.
[INFO] [stderr]    --> src/main.rs:201:14
[INFO] [stderr]     |
[INFO] [stderr] 201 |     for i in 0..b.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] 201 |     for <item> in &b {
[INFO] [stderr]     |         ^^^^^^    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `mtx`
[INFO] [stderr]    --> src/main.rs:211:14
[INFO] [stderr]     |
[INFO] [stderr] 211 |     for i in 0..mtx.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] 211 |     for (i, <item>) in mtx.iter().enumerate() {
[INFO] [stderr]     |         ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/main.rs:267:17
[INFO] [stderr]     |
[INFO] [stderr] 267 |     let mut a = 'a' as u8;
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::char_lit_as_u8)] on by default
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'a'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/main.rs:268:16
[INFO] [stderr]     |
[INFO] [stderr] 268 |     while a <= ('z' as u8) {
[INFO] [stderr]     |                ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'z'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: use of a blacklisted/placeholder name `foo`
[INFO] [stderr]    --> src/main.rs:310:9
[INFO] [stderr]     |
[INFO] [stderr] 310 |     let foo = (true, 4.0, -1i8);
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::blacklisted_name)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#blacklisted_name
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `l`
[INFO] [stderr]    --> src/main.rs:126:9
[INFO] [stderr]     |
[INFO] [stderr] 126 |     let l = Line {
[INFO] [stderr]     |         ^ help: consider using `_l` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/main.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |     let value = unsafe {iof.i};
[INFO] [stderr]     |         ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]    --> src/main.rs:276:9
[INFO] [stderr]     |
[INFO] [stderr] 276 |     let u:&str = &letters;
[INFO] [stderr]     |         ^ help: consider using `_u` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/main.rs:301:10
[INFO] [stderr]     |
[INFO] [stderr] 301 |     let (a, b) = sp;
[INFO] [stderr]     |          ^ help: consider using `_a` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:301:13
[INFO] [stderr]     |
[INFO] [stderr] 301 |     let (a, b) = sp;
[INFO] [stderr]     |             ^ help: consider using `_b` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/main.rs:308:11
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let ((a,b),(c,d)) = combined;
[INFO] [stderr]     |           ^ help: consider using `_a` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:308:13
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let ((a,b),(c,d)) = combined;
[INFO] [stderr]     |             ^ help: consider using `_b` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/main.rs:308:17
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let ((a,b),(c,d)) = combined;
[INFO] [stderr]     |                 ^ help: consider using `_c` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]    --> src/main.rs:308:19
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let ((a,b),(c,d)) = combined;
[INFO] [stderr]     |                   ^ help: consider using `_d` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]    --> src/main.rs:321:9
[INFO] [stderr]     |
[INFO] [stderr] 321 |         z @ 9...11 => "lots of",
[INFO] [stderr]     |         ^ help: consider using `_z` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/main.rs:348:8
[INFO] [stderr]     |
[INFO] [stderr] 348 |    let a = Point2 {x:0, y:0};
[INFO] [stderr]     |        ^ help: consider using `_a` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:349:8
[INFO] [stderr]     |
[INFO] [stderr] 349 |    let b = Point2 {x: 1.2, y:3.4};
[INFO] [stderr]     |        ^ help: consider using `_b` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/main.rs:350:8
[INFO] [stderr]     |
[INFO] [stderr] 350 |    let c:Point2<u16> =  Point2 {x:0, y:4};
[INFO] [stderr]     |        ^ help: consider using `_c` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]    --> src/main.rs:351:8
[INFO] [stderr]     |
[INFO] [stderr] 351 |    let d:Point2<f64> = Point2 {x: 1.2, y:3.4};
[INFO] [stderr]     |        ^ help: consider using `_d` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:353:8
[INFO] [stderr]     |
[INFO] [stderr] 353 |    let e:Point3<u16,i32> = Point3 {x: 0, y:4};
[INFO] [stderr]     |        ^ help: consider using `_e` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `borrow_two`
[INFO] [stderr]    --> src/main.rs:412:9
[INFO] [stderr]     |
[INFO] [stderr] 412 |     let borrow_two = &mut two;
[INFO] [stderr]     |         ^^^^^^^^^^ help: consider using `_borrow_two` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/main.rs:169:5
[INFO] [stderr]     |
[INFO] [stderr] 169 |     unsafe { iof.i = 42};
[INFO] [stderr]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_unsafe)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MEANING_OF_LIFE`
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const MEANING_OF_LIFE:u8 = 42;// substitui todos os MEANING_OF_LIFE do codigo por 42
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `MYSTATIC`
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | static MYSTATIC:u8 = 123; // tem endereço de
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `typefun`
[INFO] [stderr]  --> src/main.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn typefun() {
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `if_statement`
[INFO] [stderr]   --> src/main.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn if_statement() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `while_and_loop`
[INFO] [stderr]   --> src/main.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn while_and_loop() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `for_loop`
[INFO] [stderr]   --> src/main.rs:83:1
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn for_loop() {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_statement`
[INFO] [stderr]   --> src/main.rs:92:1
[INFO] [stderr]    |
[INFO] [stderr] 92 | fn match_statement() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point`
[INFO] [stderr]    --> src/main.rs:106:1
[INFO] [stderr]     |
[INFO] [stderr] 106 | struct Point {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Line`
[INFO] [stderr]    --> src/main.rs:111:1
[INFO] [stderr]     |
[INFO] [stderr] 111 | struct Line {
[INFO] [stderr]     | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `structures`
[INFO] [stderr]    --> src/main.rs:116:1
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn structures() {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Color`
[INFO] [stderr]    --> src/main.rs:132:1
[INFO] [stderr]     |
[INFO] [stderr] 132 | enum Color {
[INFO] [stderr]     | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `enums`
[INFO] [stderr]    --> src/main.rs:140:1
[INFO] [stderr]     |
[INFO] [stderr] 140 | fn enums() {
[INFO] [stderr]     | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: union is never used: `IntOrFloat`
[INFO] [stderr]    --> src/main.rs:153:1
[INFO] [stderr]     |
[INFO] [stderr] 153 | union IntOrFloat {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `process_value`
[INFO] [stderr]    --> src/main.rs:158:1
[INFO] [stderr]     |
[INFO] [stderr] 158 | fn process_value(iof: IntOrFloat){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unions`
[INFO] [stderr]    --> src/main.rs:167:1
[INFO] [stderr]     |
[INFO] [stderr] 167 | fn unions() {
[INFO] [stderr]     | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `options`
[INFO] [stderr]    --> src/main.rs:176:1
[INFO] [stderr]     |
[INFO] [stderr] 176 | fn options() {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `arrays`
[INFO] [stderr]    --> src/main.rs:191:1
[INFO] [stderr]     |
[INFO] [stderr] 191 | fn arrays() {
[INFO] [stderr]     | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vectors`
[INFO] [stderr]    --> src/main.rs:218:1
[INFO] [stderr]     |
[INFO] [stderr] 218 | fn vectors() {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `use_slice`
[INFO] [stderr]    --> src/main.rs:245:1
[INFO] [stderr]     |
[INFO] [stderr] 245 | fn use_slice(slice: &mut[i32]){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `slices`
[INFO] [stderr]    --> src/main.rs:250:1
[INFO] [stderr]     |
[INFO] [stderr] 250 | fn slices() {
[INFO] [stderr]     | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `strings`
[INFO] [stderr]    --> src/main.rs:257:1
[INFO] [stderr]     |
[INFO] [stderr] 257 | fn strings() {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_and_product`
[INFO] [stderr]    --> src/main.rs:289:1
[INFO] [stderr]     |
[INFO] [stderr] 289 | fn sum_and_product(x: i32, y:i32) -> (i32, i32) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tuples`
[INFO] [stderr]    --> src/main.rs:293:1
[INFO] [stderr]     |
[INFO] [stderr] 293 | fn tuples() {
[INFO] [stderr]     | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `how_many`
[INFO] [stderr]    --> src/main.rs:317:1
[INFO] [stderr]     |
[INFO] [stderr] 317 | fn how_many(x:i32) -> &'static str {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pattern_matching`
[INFO] [stderr]    --> src/main.rs:326:1
[INFO] [stderr]     |
[INFO] [stderr] 326 | fn pattern_matching() {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point2`
[INFO] [stderr]    --> src/main.rs:339:1
[INFO] [stderr]     |
[INFO] [stderr] 339 | struct Point2<T> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point3`
[INFO] [stderr]    --> src/main.rs:343:1
[INFO] [stderr]     |
[INFO] [stderr] 343 | struct Point3<T,V> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `generics`
[INFO] [stderr]    --> src/main.rs:347:1
[INFO] [stderr]     |
[INFO] [stderr] 347 | fn generics() {
[INFO] [stderr]     | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_value`
[INFO] [stderr]    --> src/main.rs:355:1
[INFO] [stderr]     |
[INFO] [stderr] 355 | fn print_value(x: i32){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `increase`
[INFO] [stderr]    --> src/main.rs:358:1
[INFO] [stderr]     |
[INFO] [stderr] 358 | fn increase(x: &mut i32){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `product`
[INFO] [stderr]    --> src/main.rs:361:1
[INFO] [stderr]     |
[INFO] [stderr] 361 | fn product(x: i32, y: i32) -> i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `functions`
[INFO] [stderr]    --> src/main.rs:364:1
[INFO] [stderr]     |
[INFO] [stderr] 364 | fn functions() {
[INFO] [stderr]     | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point4`
[INFO] [stderr]    --> src/main.rs:377:1
[INFO] [stderr]     |
[INFO] [stderr] 377 | struct Point4 {
[INFO] [stderr]     | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Line4`
[INFO] [stderr]    --> src/main.rs:381:1
[INFO] [stderr]     |
[INFO] [stderr] 381 | struct Line4 {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]    --> src/main.rs:386:5
[INFO] [stderr]     |
[INFO] [stderr] 386 |     fn len(&self) -> f64 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `methods`
[INFO] [stderr]    --> src/main.rs:392:1
[INFO] [stderr]     |
[INFO] [stderr] 392 | fn methods() {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `RustSample` should have a snake case name such as `rust_sample`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: some ranges overlap
[INFO] [stderr]   --> src/main.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |         1...999  => "unknown",
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_overlapping_arm)] on by default
[INFO] [stderr] note: overlaps with this
[INFO] [stderr]   --> src/main.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 98 |         7 => "Russia",
[INFO] [stderr]    |         ^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_overlapping_arm
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `b`.
[INFO] [stderr]    --> src/main.rs:201:14
[INFO] [stderr]     |
[INFO] [stderr] 201 |     for i in 0..b.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] 201 |     for <item> in &b {
[INFO] [stderr]     |         ^^^^^^    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `mtx`
[INFO] [stderr]    --> src/main.rs:211:14
[INFO] [stderr]     |
[INFO] [stderr] 211 |     for i in 0..mtx.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] 211 |     for (i, <item>) in mtx.iter().enumerate() {
[INFO] [stderr]     |         ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/main.rs:267:17
[INFO] [stderr]     |
[INFO] [stderr] 267 |     let mut a = 'a' as u8;
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::char_lit_as_u8)] on by default
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'a'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/main.rs:268:16
[INFO] [stderr]     |
[INFO] [stderr] 268 |     while a <= ('z' as u8) {
[INFO] [stderr]     |                ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'z'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: use of a blacklisted/placeholder name `foo`
[INFO] [stderr]    --> src/main.rs:310:9
[INFO] [stderr]     |
[INFO] [stderr] 310 |     let foo = (true, 4.0, -1i8);
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::blacklisted_name)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#blacklisted_name
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `"docker" "inspect" "fc64b7b7e79fc7c36033b9f2dd33bdafacf178580a09c2aa11047ffc98502f87"`
[INFO] running `"docker" "rm" "-f" "fc64b7b7e79fc7c36033b9f2dd33bdafacf178580a09c2aa11047ffc98502f87"`
[INFO] [stdout] fc64b7b7e79fc7c36033b9f2dd33bdafacf178580a09c2aa11047ffc98502f87