[INFO] updating cached repository ianbrault/crisp
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ianbrault/crisp
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ianbrault/crisp" "work/ex/clippy-test-run/sources/stable/gh/ianbrault/crisp"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/ianbrault/crisp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ianbrault/crisp" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ianbrault/crisp"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ianbrault/crisp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 73e3b7deb12f5ccb194dfb064907771f4e4a6df3
[INFO] sha for GitHub repo ianbrault/crisp: 73e3b7deb12f5ccb194dfb064907771f4e4a6df3
[INFO] validating manifest of ianbrault/crisp 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 ianbrault/crisp 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 ianbrault/crisp
[INFO] finished frobbing ianbrault/crisp
[INFO] frobbed toml for ianbrault/crisp written to work/ex/clippy-test-run/sources/stable/gh/ianbrault/crisp/Cargo.toml
[INFO] started frobbing ianbrault/crisp
[INFO] finished frobbing ianbrault/crisp
[INFO] frobbed toml for ianbrault/crisp written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ianbrault/crisp/Cargo.toml
[INFO] crate ianbrault/crisp 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 ianbrault/crisp 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/ianbrault/crisp:/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] 3a8d79f162914ec6b6a83d7078dc63ac4e5f1536091e84d669f7825bb7077ad0
[INFO] running `"docker" "start" "-a" "3a8d79f162914ec6b6a83d7078dc63ac4e5f1536091e84d669f7825bb7077ad0"`
[INFO] [stderr]     Checking crisp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parse/dfa.rs:119:13
[INFO] [stderr]     |
[INFO] [stderr] 119 |             states: states
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `states`
[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/parse/dfa.rs:119:13
[INFO] [stderr]     |
[INFO] [stderr] 119 |             states: states
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `states`
[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: variant is never constructed: `Int`
[INFO] [stderr]   --> src/eval.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Int(i32),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float`
[INFO] [stderr]   --> src/eval.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Float(f64),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/parse/dfa.rs:39:32
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn contains(&self, ch: &char) -> bool {
[INFO] [stderr]    |                                ^^^^^ help: consider passing by value instead: `char`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `parse::dfa::State`
[INFO] [stderr]   --> src/parse/dfa.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 | /     pub fn new() -> State {
[INFO] [stderr] 72 | |         State {
[INFO] [stderr] 73 | |             input_groups: vec![],
[INFO] [stderr] 74 | |         }
[INFO] [stderr] 75 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 65 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/parse/dfa.rs:141:31
[INFO] [stderr]     |
[INFO] [stderr] 141 |     pub fn eval(&self, input: &String) -> bool {
[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: this if-then-else expression returns a bool literal
[INFO] [stderr]    --> src/parse/dfa.rs:151:9
[INFO] [stderr]     |
[INFO] [stderr] 151 | /         if self.acc_states.contains(&(curr_state as usize)) {
[INFO] [stderr] 152 | |             true
[INFO] [stderr] 153 | |         } else {
[INFO] [stderr] 154 | |             false
[INFO] [stderr] 155 | |         }
[INFO] [stderr]     | |_________^ help: you can reduce it to: `self.acc_states.contains(&(curr_state as usize))`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_bool)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_bool
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/parse/token.rs:85:24
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn tokenize(input: &String) -> Vec<Token> {
[INFO] [stderr]    |                        ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/parse/token.rs:92:25
[INFO] [stderr]    |
[INFO] [stderr] 92 |         let ch = &input[curr..curr+1];
[INFO] [stderr]    |                         ^^^^^^^^^^^^ help: use: `curr..=curr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/parse/type_parser.rs:43:32
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn parse(&self, input: &String) -> TypeID {
[INFO] [stderr]    |                                ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]   --> src/parse/mod.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 | /     let mut last_token = None;
[INFO] [stderr] 32 | |     if !tokens.is_empty() {
[INFO] [stderr] 33 | |         last_token = Some(tokens.last().unwrap().clone());
[INFO] [stderr] 34 | |     }
[INFO] [stderr]    | |_____^ help: it is more idiomatic to write: `let <mut> last_token = if !tokens.is_empty() { Some(tokens.last().unwrap().clone()) } else { None };`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]    = note: you might not need `mut` at all
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/parse/mod.rs:75:30
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn read_input_file(filename: &String) -> io::Result<String> {
[INFO] [stderr]    |                              ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/parse/mod.rs:86:29
[INFO] [stderr]    |
[INFO] [stderr] 86 | pub fn parse_file(filename: &String) -> Result<Vec<SExpression>, Error> {
[INFO] [stderr]    |                             ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/syntax.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 | /         match self {
[INFO] [stderr] 35 | |             SExpression::Atom { ref mut type_id, .. } => *type_id = tid,
[INFO] [stderr] 36 | |             _ => ()
[INFO] [stderr] 37 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let SExpression::Atom { ref mut type_id, .. } = self { *type_id = tid }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/syntax.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 | /         match self {
[INFO] [stderr] 56 | |             SExpression::SExprList(list) => list.push(Box::new(sexpr)),
[INFO] [stderr] 57 | |             _ => ()
[INFO] [stderr] 58 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let SExpression::SExprList(list) = self { list.push(Box::new(sexpr)) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/types/error.rs:60:33
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn file_error(filename: &String, msg: String) -> Error {
[INFO] [stderr]    |                                 ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Int`
[INFO] [stderr]   --> src/eval.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Int(i32),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float`
[INFO] [stderr]   --> src/eval.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Float(f64),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/parse/dfa.rs:39:32
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn contains(&self, ch: &char) -> bool {
[INFO] [stderr]    |                                ^^^^^ help: consider passing by value instead: `char`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `parse::dfa::State`
[INFO] [stderr]   --> src/parse/dfa.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 | /     pub fn new() -> State {
[INFO] [stderr] 72 | |         State {
[INFO] [stderr] 73 | |             input_groups: vec![],
[INFO] [stderr] 74 | |         }
[INFO] [stderr] 75 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 65 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/parse/dfa.rs:141:31
[INFO] [stderr]     |
[INFO] [stderr] 141 |     pub fn eval(&self, input: &String) -> bool {
[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: this if-then-else expression returns a bool literal
[INFO] [stderr]    --> src/parse/dfa.rs:151:9
[INFO] [stderr]     |
[INFO] [stderr] 151 | /         if self.acc_states.contains(&(curr_state as usize)) {
[INFO] [stderr] 152 | |             true
[INFO] [stderr] 153 | |         } else {
[INFO] [stderr] 154 | |             false
[INFO] [stderr] 155 | |         }
[INFO] [stderr]     | |_________^ help: you can reduce it to: `self.acc_states.contains(&(curr_state as usize))`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_bool)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_bool
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/parse/token.rs:85:24
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn tokenize(input: &String) -> Vec<Token> {
[INFO] [stderr]    |                        ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/parse/token.rs:92:25
[INFO] [stderr]    |
[INFO] [stderr] 92 |         let ch = &input[curr..curr+1];
[INFO] [stderr]    |                         ^^^^^^^^^^^^ help: use: `curr..=curr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/parse/type_parser.rs:43:32
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn parse(&self, input: &String) -> TypeID {
[INFO] [stderr]    |                                ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]   --> src/parse/mod.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 | /     let mut last_token = None;
[INFO] [stderr] 32 | |     if !tokens.is_empty() {
[INFO] [stderr] 33 | |         last_token = Some(tokens.last().unwrap().clone());
[INFO] [stderr] 34 | |     }
[INFO] [stderr]    | |_____^ help: it is more idiomatic to write: `let <mut> last_token = if !tokens.is_empty() { Some(tokens.last().unwrap().clone()) } else { None };`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]    = note: you might not need `mut` at all
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/parse/mod.rs:75:30
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn read_input_file(filename: &String) -> io::Result<String> {
[INFO] [stderr]    |                              ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/parse/mod.rs:86:29
[INFO] [stderr]    |
[INFO] [stderr] 86 | pub fn parse_file(filename: &String) -> Result<Vec<SExpression>, Error> {
[INFO] [stderr]    |                             ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/syntax.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 | /         match self {
[INFO] [stderr] 35 | |             SExpression::Atom { ref mut type_id, .. } => *type_id = tid,
[INFO] [stderr] 36 | |             _ => ()
[INFO] [stderr] 37 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let SExpression::Atom { ref mut type_id, .. } = self { *type_id = tid }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/syntax.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 | /         match self {
[INFO] [stderr] 56 | |             SExpression::SExprList(list) => list.push(Box::new(sexpr)),
[INFO] [stderr] 57 | |             _ => ()
[INFO] [stderr] 58 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let SExpression::SExprList(list) = self { list.push(Box::new(sexpr)) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/types/error.rs:60:33
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn file_error(filename: &String, msg: String) -> Error {
[INFO] [stderr]    |                                 ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `"docker" "inspect" "3a8d79f162914ec6b6a83d7078dc63ac4e5f1536091e84d669f7825bb7077ad0"`
[INFO] running `"docker" "rm" "-f" "3a8d79f162914ec6b6a83d7078dc63ac4e5f1536091e84d669f7825bb7077ad0"`
[INFO] [stdout] 3a8d79f162914ec6b6a83d7078dc63ac4e5f1536091e84d669f7825bb7077ad0