[INFO] cloning repository https://github.com/Patricus/ccwc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Patricus/ccwc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPatricus%2Fccwc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPatricus%2Fccwc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea1c61c14bcbaab3d082e6be5912eef61f05bbd9
[INFO] linting Patricus/ccwc against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPatricus%2Fccwc" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Patricus/ccwc
[INFO] finished tweaking git repo https://github.com/Patricus/ccwc
[INFO] tweaked toml for git repo https://github.com/Patricus/ccwc written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Patricus/ccwc on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Patricus/ccwc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v4.5.14
[INFO] [stderr]   Downloaded colorchoice v1.0.1
[INFO] [stderr]   Downloaded anstyle-query v1.1.0
[INFO] [stderr]   Downloaded clap_derive v4.5.13
[INFO] [stderr]   Downloaded anstyle-parse v0.2.4
[INFO] [stderr]   Downloaded anstyle-wincon v3.0.3
[INFO] [stderr]   Downloaded anstyle v1.0.8
[INFO] [stderr]   Downloaded is_terminal_polyfill v1.70.0
[INFO] [stderr]   Downloaded anstream v0.6.14
[INFO] [stderr]   Downloaded clap_lex v0.7.1
[INFO] [stderr]   Downloaded clap_builder v4.5.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26b5a019f7479383de6a13608a33bb6277021b4392d88af58d6468c2073e80f6
[INFO] running `Command { std: "docker" "start" "-a" "26b5a019f7479383de6a13608a33bb6277021b4392d88af58d6468c2073e80f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26b5a019f7479383de6a13608a33bb6277021b4392d88af58d6468c2073e80f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26b5a019f7479383de6a13608a33bb6277021b4392d88af58d6468c2073e80f6", kill_on_drop: false }`
[INFO] [stdout] 26b5a019f7479383de6a13608a33bb6277021b4392d88af58d6468c2073e80f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 688695d4481dcb4958414560b832db3c3b65e8770652e2b7c1a50c07504fe189
[INFO] running `Command { std: "docker" "start" "-a" "688695d4481dcb4958414560b832db3c3b65e8770652e2b7c1a50c07504fe189", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.0
[INFO] [stderr]     Checking colorchoice v1.0.1
[INFO] [stderr]     Checking anstyle v1.0.8
[INFO] [stderr]     Checking anstyle-query v1.1.0
[INFO] [stderr]     Checking anstyle-parse v0.2.4
[INFO] [stderr]     Checking clap_lex v0.7.1
[INFO] [stderr]     Checking anstream v0.6.14
[INFO] [stderr]     Checking clap_builder v4.5.14
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling clap_derive v4.5.13
[INFO] [stderr]     Checking clap v4.5.14
[INFO] [stderr]     Checking ccwc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/main.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 |     if *bytes || !*bytes && !*lines && !*words && !*chars {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*bytes || !*lines && !*words && !*chars`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/main.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     if *lines || !*bytes && !*lines && !*words && !*chars {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*lines || !*bytes && !*words && !*chars`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/main.rs:120:8
[INFO] [stdout]     |
[INFO] [stdout] 120 |     if *words || !*bytes && !*lines && !*words && !*chars {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*words || !*bytes && !*lines && !*chars`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this pattern reimplements `Option::unwrap_or`
[INFO] [stdout]   --> src/main.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |       let bytes = match matches.get_one::<bool>("bytes") {
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 51 | |         Some(bytes) => bytes,
[INFO] [stdout] 52 | |         _ => &false,
[INFO] [stdout] 53 | |     };
[INFO] [stdout]    | |_____^ help: replace with: `matches.get_one::<bool>("bytes").unwrap_or(&false)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_unwrap_or
[INFO] [stdout]    = note: `#[warn(clippy::manual_unwrap_or)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this pattern reimplements `Option::unwrap_or`
[INFO] [stdout]   --> src/main.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |       let lines = match matches.get_one::<bool>("lines") {
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 56 | |         Some(lines) => lines,
[INFO] [stdout] 57 | |         _ => &false,
[INFO] [stdout] 58 | |     };
[INFO] [stdout]    | |_____^ help: replace with: `matches.get_one::<bool>("lines").unwrap_or(&false)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_unwrap_or
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this pattern reimplements `Option::unwrap_or`
[INFO] [stdout]   --> src/main.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |       let words = match matches.get_one::<bool>("words") {
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 61 | |         Some(words) => words,
[INFO] [stdout] 62 | |         _ => &false,
[INFO] [stdout] 63 | |     };
[INFO] [stdout]    | |_____^ help: replace with: `matches.get_one::<bool>("words").unwrap_or(&false)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_unwrap_or
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this pattern reimplements `Option::unwrap_or`
[INFO] [stdout]   --> src/main.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |       let chars = match matches.get_one::<bool>("chars") {
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 66 | |         Some(chars) => chars,
[INFO] [stdout] 67 | |         _ => &false,
[INFO] [stdout] 68 | |     };
[INFO] [stdout]    | |_____^ help: replace with: `matches.get_one::<bool>("chars").unwrap_or(&false)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_unwrap_or
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: needless call to `as_bytes`
[INFO] [stdout]   --> src/main.rs:94:18
[INFO] [stdout]    |
[INFO] [stdout] 94 |             _ => input.as_bytes().len() as u64,
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^ help: `len()` can be called directly on strings: `input.len()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_as_bytes
[INFO] [stdout]    = note: `#[warn(clippy::needless_as_bytes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/main.rs:128:32
[INFO] [stdout]     |
[INFO] [stdout] 128 | ...                   if words.len() == 0 {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `words.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]     = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/main.rs:140:24
[INFO] [stdout]     |
[INFO] [stdout] 140 |                     if line.len() > 0 {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/main.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 179 | /     match &file {
[INFO] [stdout] 180 | |         Ok(file) => {
[INFO] [stdout] 181 | |             // get file metadata
[INFO] [stdout] 182 | |             let test = file.metadata();
[INFO] [stdout] ...   |
[INFO] [stdout] 198 | |         Err(_) => {}
[INFO] [stdout] 199 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]     = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 179 ~     if let Ok(file) = &file {
[INFO] [stdout] 180 +         // get file metadata
[INFO] [stdout] 181 +         let test = file.metadata();
[INFO] [stdout] 182 +         if let Ok(test_file) = test {
[INFO] [stdout] 183 +             // check metadata if it is a file
[INFO] [stdout] 184 +             if test_file.is_file() {
[INFO] [stdout] 185 +                 // get file name
[INFO] [stdout] 186 +                 let file_name = Path::new(&input).file_name();
[INFO] [stdout] 187 +                 if let Some(file_name) = file_name {
[INFO] [stdout] 188 +                     if let Some(file_str) = file_name.to_str() {
[INFO] [stdout] 189 +                         // append space and file name
[INFO] [stdout] 190 +                         return_str.push_str(" ");
[INFO] [stdout] 191 +                         return_str.push_str(file_str);
[INFO] [stdout] 192 +                     }
[INFO] [stdout] 193 +                 }
[INFO] [stdout] 194 +             }
[INFO] [stdout] 195 +         }
[INFO] [stdout] 196 +     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calling `push_str()` using a single-character string literal
[INFO] [stdout]    --> src/main.rs:191:29
[INFO] [stdout]     |
[INFO] [stdout] 191 | ...                   return_str.push_str(" ");
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `push` with a character literal: `return_str.push(' ')`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_add_str
[INFO] [stdout]     = note: `#[warn(clippy::single_char_add_str)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/main.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 |     if *bytes || !*bytes && !*lines && !*words && !*chars {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*bytes || !*lines && !*words && !*chars`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/main.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     if *lines || !*bytes && !*lines && !*words && !*chars {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*lines || !*bytes && !*words && !*chars`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/main.rs:120:8
[INFO] [stdout]     |
[INFO] [stdout] 120 |     if *words || !*bytes && !*lines && !*words && !*chars {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*words || !*bytes && !*lines && !*chars`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this pattern reimplements `Option::unwrap_or`
[INFO] [stdout]   --> src/main.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |       let bytes = match matches.get_one::<bool>("bytes") {
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 51 | |         Some(bytes) => bytes,
[INFO] [stdout] 52 | |         _ => &false,
[INFO] [stdout] 53 | |     };
[INFO] [stdout]    | |_____^ help: replace with: `matches.get_one::<bool>("bytes").unwrap_or(&false)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_unwrap_or
[INFO] [stdout]    = note: `#[warn(clippy::manual_unwrap_or)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this pattern reimplements `Option::unwrap_or`
[INFO] [stdout]   --> src/main.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |       let lines = match matches.get_one::<bool>("lines") {
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 56 | |         Some(lines) => lines,
[INFO] [stdout] 57 | |         _ => &false,
[INFO] [stdout] 58 | |     };
[INFO] [stdout]    | |_____^ help: replace with: `matches.get_one::<bool>("lines").unwrap_or(&false)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_unwrap_or
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this pattern reimplements `Option::unwrap_or`
[INFO] [stdout]   --> src/main.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |       let words = match matches.get_one::<bool>("words") {
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 61 | |         Some(words) => words,
[INFO] [stdout] 62 | |         _ => &false,
[INFO] [stdout] 63 | |     };
[INFO] [stdout]    | |_____^ help: replace with: `matches.get_one::<bool>("words").unwrap_or(&false)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_unwrap_or
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this pattern reimplements `Option::unwrap_or`
[INFO] [stdout]   --> src/main.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |       let chars = match matches.get_one::<bool>("chars") {
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 66 | |         Some(chars) => chars,
[INFO] [stdout] 67 | |         _ => &false,
[INFO] [stdout] 68 | |     };
[INFO] [stdout]    | |_____^ help: replace with: `matches.get_one::<bool>("chars").unwrap_or(&false)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_unwrap_or
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: needless call to `as_bytes`
[INFO] [stdout]   --> src/main.rs:94:18
[INFO] [stdout]    |
[INFO] [stdout] 94 |             _ => input.as_bytes().len() as u64,
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^ help: `len()` can be called directly on strings: `input.len()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_as_bytes
[INFO] [stdout]    = note: `#[warn(clippy::needless_as_bytes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/main.rs:128:32
[INFO] [stdout]     |
[INFO] [stdout] 128 | ...                   if words.len() == 0 {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `words.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]     = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/main.rs:140:24
[INFO] [stdout]     |
[INFO] [stdout] 140 |                     if line.len() > 0 {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/main.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 179 | /     match &file {
[INFO] [stdout] 180 | |         Ok(file) => {
[INFO] [stdout] 181 | |             // get file metadata
[INFO] [stdout] 182 | |             let test = file.metadata();
[INFO] [stdout] ...   |
[INFO] [stdout] 198 | |         Err(_) => {}
[INFO] [stdout] 199 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]     = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 179 ~     if let Ok(file) = &file {
[INFO] [stdout] 180 +         // get file metadata
[INFO] [stdout] 181 +         let test = file.metadata();
[INFO] [stdout] 182 +         if let Ok(test_file) = test {
[INFO] [stdout] 183 +             // check metadata if it is a file
[INFO] [stdout] 184 +             if test_file.is_file() {
[INFO] [stdout] 185 +                 // get file name
[INFO] [stdout] 186 +                 let file_name = Path::new(&input).file_name();
[INFO] [stdout] 187 +                 if let Some(file_name) = file_name {
[INFO] [stdout] 188 +                     if let Some(file_str) = file_name.to_str() {
[INFO] [stdout] 189 +                         // append space and file name
[INFO] [stdout] 190 +                         return_str.push_str(" ");
[INFO] [stdout] 191 +                         return_str.push_str(file_str);
[INFO] [stdout] 192 +                     }
[INFO] [stdout] 193 +                 }
[INFO] [stdout] 194 +             }
[INFO] [stdout] 195 +         }
[INFO] [stdout] 196 +     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calling `push_str()` using a single-character string literal
[INFO] [stdout]    --> src/main.rs:191:29
[INFO] [stdout]     |
[INFO] [stdout] 191 | ...                   return_str.push_str(" ");
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `push` with a character literal: `return_str.push(' ')`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_add_str
[INFO] [stdout]     = note: `#[warn(clippy::single_char_add_str)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.10s
[INFO] running `Command { std: "docker" "inspect" "688695d4481dcb4958414560b832db3c3b65e8770652e2b7c1a50c07504fe189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "688695d4481dcb4958414560b832db3c3b65e8770652e2b7c1a50c07504fe189", kill_on_drop: false }`
[INFO] [stdout] 688695d4481dcb4958414560b832db3c3b65e8770652e2b7c1a50c07504fe189