[INFO] updating cached repository mpdrescher/latex-preprocessor
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mpdrescher/latex-preprocessor
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mpdrescher/latex-preprocessor" "work/ex/clippy-test-run/sources/stable/gh/mpdrescher/latex-preprocessor"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/mpdrescher/latex-preprocessor'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mpdrescher/latex-preprocessor" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mpdrescher/latex-preprocessor"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mpdrescher/latex-preprocessor'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 36a31eea87ed73b30434a1526a5f39ddf41f47e7
[INFO] sha for GitHub repo mpdrescher/latex-preprocessor: 36a31eea87ed73b30434a1526a5f39ddf41f47e7
[INFO] validating manifest of mpdrescher/latex-preprocessor 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 mpdrescher/latex-preprocessor 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 mpdrescher/latex-preprocessor
[INFO] finished frobbing mpdrescher/latex-preprocessor
[INFO] frobbed toml for mpdrescher/latex-preprocessor written to work/ex/clippy-test-run/sources/stable/gh/mpdrescher/latex-preprocessor/Cargo.toml
[INFO] started frobbing mpdrescher/latex-preprocessor
[INFO] finished frobbing mpdrescher/latex-preprocessor
[INFO] frobbed toml for mpdrescher/latex-preprocessor written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mpdrescher/latex-preprocessor/Cargo.toml
[INFO] crate mpdrescher/latex-preprocessor 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 mpdrescher/latex-preprocessor 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-4/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/mpdrescher/latex-preprocessor:/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] aa973534d1b77aac9d0063485513726eb7e418fb9f870f528d1e6a3786fd9236
[INFO] running `"docker" "start" "-a" "aa973534d1b77aac9d0063485513726eb7e418fb9f870f528d1e6a3786fd9236"`
[INFO] [stderr]     Checking latex-preprocessor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/main.rs:108:13
[INFO] [stderr]     |
[INFO] [stderr] 108 |             block_type: block_type,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `block_type`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/main.rs:238:13
[INFO] [stderr]     |
[INFO] [stderr] 238 |             blocks: blocks
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `blocks`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/main.rs:108:13
[INFO] [stderr]     |
[INFO] [stderr] 108 |             block_type: block_type,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `block_type`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/main.rs:238:13
[INFO] [stderr]     |
[INFO] [stderr] 238 |             blocks: blocks
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `blocks`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/main.rs:7:24
[INFO] [stderr]   |
[INFO] [stderr] 7 | const DEFAULT_HEADER: &'static str = r#"\documentclass[12pt, a4paper, twoside, titlepage]{article}
[INFO] [stderr]   |                       -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:19:24
[INFO] [stderr]    |
[INFO] [stderr] 19 | const DEFAULT_FOOTER: &'static str = r#"\end{flushleft}
[INFO] [stderr]    |                       -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/main.rs:163:26
[INFO] [stderr]     |
[INFO] [stderr] 163 |                       else {
[INFO] [stderr]     |  __________________________^
[INFO] [stderr] 164 | |                         if commented {
[INFO] [stderr] 165 | |                             buffer.push_str(&format!("&{} &&\\text{{\\quad}}", elem));
[INFO] [stderr] 166 | |                         }
[INFO] [stderr] ...   |
[INFO] [stderr] 169 | |                         }
[INFO] [stderr] 170 | |                     }
[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] 163 |                     else if commented {
[INFO] [stderr] 164 |     buffer.push_str(&format!("&{} &&\\text{{\\quad}}", elem));
[INFO] [stderr] 165 | }
[INFO] [stderr] 166 | else {
[INFO] [stderr] 167 |     buffer.push_str(&format!("&{}", elem));
[INFO] [stderr] 168 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/main.rs:181:44
[INFO] [stderr]     |
[INFO] [stderr] 181 |       string.into_iter().fold(String::new(), (|mut acc, x| {
[INFO] [stderr]     |  ____________________________________________^
[INFO] [stderr] 182 | |         acc.push_str(prefix);
[INFO] [stderr] 183 | |         acc.push_str(&x);
[INFO] [stderr] 184 | |         acc.push_str(suffix); 
[INFO] [stderr] 185 | |         acc
[INFO] [stderr] 186 | |     }))
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 181 |     string.into_iter().fold(String::new(), |mut acc, x| {
[INFO] [stderr] 182 |         acc.push_str(prefix);
[INFO] [stderr] 183 |         acc.push_str(&x);
[INFO] [stderr] 184 |         acc.push_str(suffix); 
[INFO] [stderr] 185 |         acc
[INFO] [stderr] 186 |     })
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/main.rs:7:24
[INFO] [stderr]   |
[INFO] [stderr] 7 | const DEFAULT_HEADER: &'static str = r#"\documentclass[12pt, a4paper, twoside, titlepage]{article}
[INFO] [stderr]   |                       -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:19:24
[INFO] [stderr]    |
[INFO] [stderr] 19 | const DEFAULT_FOOTER: &'static str = r#"\end{flushleft}
[INFO] [stderr]    |                       -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/main.rs:163:26
[INFO] [stderr]     |
[INFO] [stderr] 163 |                       else {
[INFO] [stderr]     |  __________________________^
[INFO] [stderr] 164 | |                         if commented {
[INFO] [stderr] 165 | |                             buffer.push_str(&format!("&{} &&\\text{{\\quad}}", elem));
[INFO] [stderr] 166 | |                         }
[INFO] [stderr] ...   |
[INFO] [stderr] 169 | |                         }
[INFO] [stderr] 170 | |                     }
[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] 163 |                     else if commented {
[INFO] [stderr] 164 |     buffer.push_str(&format!("&{} &&\\text{{\\quad}}", elem));
[INFO] [stderr] 165 | }
[INFO] [stderr] 166 | else {
[INFO] [stderr] 167 |     buffer.push_str(&format!("&{}", elem));
[INFO] [stderr] 168 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/main.rs:181:44
[INFO] [stderr]     |
[INFO] [stderr] 181 |       string.into_iter().fold(String::new(), (|mut acc, x| {
[INFO] [stderr]     |  ____________________________________________^
[INFO] [stderr] 182 | |         acc.push_str(prefix);
[INFO] [stderr] 183 | |         acc.push_str(&x);
[INFO] [stderr] 184 | |         acc.push_str(suffix); 
[INFO] [stderr] 185 | |         acc
[INFO] [stderr] 186 | |     }))
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 181 |     string.into_iter().fold(String::new(), |mut acc, x| {
[INFO] [stderr] 182 |         acc.push_str(prefix);
[INFO] [stderr] 183 |         acc.push_str(&x);
[INFO] [stderr] 184 |         acc.push_str(suffix); 
[INFO] [stderr] 185 |         acc
[INFO] [stderr] 186 |     })
[INFO] [stderr]     |
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/main.rs:51:21
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn write_file(path: &String, content: String) -> IOResult<()> {
[INFO] [stderr]    |                     ^^^^^^^ help: change this to: `&str`
[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: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/main.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 | /         match self {
[INFO] [stderr] 70 | |             &Line::Normal(_) => LineType::Normal,
[INFO] [stderr] 71 | |             &Line::Header(_, x) => LineType::Header(x),
[INFO] [stderr] 72 | |             &Line::Align(_) => LineType::Align
[INFO] [stderr] 73 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 69 |         match *self {
[INFO] [stderr] 70 |             Line::Normal(_) => LineType::Normal,
[INFO] [stderr] 71 |             Line::Header(_, x) => LineType::Header(x),
[INFO] [stderr] 72 |             Line::Align(_) => LineType::Align
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/main.rs:99:12
[INFO] [stderr]    |
[INFO] [stderr] 99 |         if buffer.len() == 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `buffer.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:102:26
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let block_type = buffer.get(0).unwrap().get_type();
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&buffer[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/main.rs:118:51
[INFO] [stderr]     |
[INFO] [stderr] 118 |                     .map(|x| if x.trim() == "~~" {format!("\\quad\\newline")} else {x})
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"\\quad\\newline".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/main.rs:198:33
[INFO] [stderr]     |
[INFO] [stderr] 198 |             if line.starts_with(">") {
[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: single-character string constant used as pattern
[INFO] [stderr]    --> src/main.rs:201:38
[INFO] [stderr]     |
[INFO] [stderr] 201 |             else if line.starts_with("#") {
[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: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/main.rs:51:21
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn write_file(path: &String, content: String) -> IOResult<()> {
[INFO] [stderr]    |                     ^^^^^^^ help: change this to: `&str`
[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: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/main.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 | /         match self {
[INFO] [stderr] 70 | |             &Line::Normal(_) => LineType::Normal,
[INFO] [stderr] 71 | |             &Line::Header(_, x) => LineType::Header(x),
[INFO] [stderr] 72 | |             &Line::Align(_) => LineType::Align
[INFO] [stderr] 73 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 69 |         match *self {
[INFO] [stderr] 70 |             Line::Normal(_) => LineType::Normal,
[INFO] [stderr] 71 |             Line::Header(_, x) => LineType::Header(x),
[INFO] [stderr] 72 |             Line::Align(_) => LineType::Align
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/main.rs:99:12
[INFO] [stderr]    |
[INFO] [stderr] 99 |         if buffer.len() == 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `buffer.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:102:26
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let block_type = buffer.get(0).unwrap().get_type();
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&buffer[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/main.rs:118:51
[INFO] [stderr]     |
[INFO] [stderr] 118 |                     .map(|x| if x.trim() == "~~" {format!("\\quad\\newline")} else {x})
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"\\quad\\newline".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/main.rs:198:33
[INFO] [stderr]     |
[INFO] [stderr] 198 |             if line.starts_with(">") {
[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: single-character string constant used as pattern
[INFO] [stderr]    --> src/main.rs:201:38
[INFO] [stderr]     |
[INFO] [stderr] 201 |             else if line.starts_with("#") {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `"docker" "inspect" "aa973534d1b77aac9d0063485513726eb7e418fb9f870f528d1e6a3786fd9236"`
[INFO] running `"docker" "rm" "-f" "aa973534d1b77aac9d0063485513726eb7e418fb9f870f528d1e6a3786fd9236"`
[INFO] [stdout] aa973534d1b77aac9d0063485513726eb7e418fb9f870f528d1e6a3786fd9236