[INFO] crate rust-enum-derive 0.4.0 is already in cache
[INFO] extracting crate rust-enum-derive 0.4.0 into work/ex/clippy-test-run/sources/stable/reg/rust-enum-derive/0.4.0
[INFO] extracting crate rust-enum-derive 0.4.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rust-enum-derive/0.4.0
[INFO] validating manifest of rust-enum-derive-0.4.0 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 rust-enum-derive-0.4.0 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 rust-enum-derive-0.4.0
[INFO] finished frobbing rust-enum-derive-0.4.0
[INFO] frobbed toml for rust-enum-derive-0.4.0 written to work/ex/clippy-test-run/sources/stable/reg/rust-enum-derive/0.4.0/Cargo.toml
[INFO] started frobbing rust-enum-derive-0.4.0
[INFO] finished frobbing rust-enum-derive-0.4.0
[INFO] frobbed toml for rust-enum-derive-0.4.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rust-enum-derive/0.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 rust-enum-derive-0.4.0 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/reg/rust-enum-derive/0.4.0:/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] 3fe32b7dace90f6c0a81e49df40f2dbd092df0fbb1a178fda1199b75226236f9
[INFO] running `"docker" "start" "-a" "3fe32b7dace90f6c0a81e49df40f2dbd092df0fbb1a178fda1199b75226236f9"`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/src/main.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr] warning: path `/opt/crater/workdir/src/main.rs` was erroneously implicitly accepted for binary `rust_enum_derive`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]     Checking rust-enum-derive v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:50:17
[INFO] [stderr]    |
[INFO] [stderr] 50 |         CEnum { i:i, s: String::from(s) }
[INFO] [stderr]    |                 ^^^ help: replace it with: `i`
[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/lib.rs:50:17
[INFO] [stderr]    |
[INFO] [stderr] 50 |         CEnum { i:i, s: String::from(s) }
[INFO] [stderr]    |                 ^^^ help: replace it with: `i`
[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: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/lib.rs:86:42
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn write(&self, w: &mut Write, name: &String, hex: bool, vec: &Vec<CEnum>) -> Result<()>;
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/lib.rs:86:67
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn write(&self, w: &mut Write, name: &String, hex: bool, vec: &Vec<CEnum>) -> Result<()>;
[INFO] [stderr]    |                                                                   ^^^^^^^^^^^ help: change this to: `&[CEnum]`
[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/lib.rs:210:42
[INFO] [stderr]     |
[INFO] [stderr] 210 |     fn write(&self, w: &mut Write, name: &String, derive: Option<&String>, hex: bool, vec: &Vec<CEnum>) -> Result<()> {
[INFO] [stderr]     |                                          ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:210:92
[INFO] [stderr]     |
[INFO] [stderr] 210 |     fn write(&self, w: &mut Write, name: &String, derive: Option<&String>, hex: bool, vec: &Vec<CEnum>) -> Result<()> {
[INFO] [stderr]     |                                                                                            ^^^^^^^^^^^ help: change this to: `&[CEnum]`
[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/lib.rs:212:9
[INFO] [stderr]     |
[INFO] [stderr] 212 | /         match derive
[INFO] [stderr] 213 | |         {
[INFO] [stderr] 214 | |             Some(s) => try!(write!(w, "#[derive({})]\n", s)),
[INFO] [stderr] 215 | |             None => (),
[INFO] [stderr] 216 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Some(s) = derive { try!(write!(w, "#[derive({})]\n", s)) }`
[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: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/lib.rs:86:42
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn write(&self, w: &mut Write, name: &String, hex: bool, vec: &Vec<CEnum>) -> Result<()>;
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/lib.rs:86:67
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn write(&self, w: &mut Write, name: &String, hex: bool, vec: &Vec<CEnum>) -> Result<()>;
[INFO] [stderr]    |                                                                   ^^^^^^^^^^^ help: change this to: `&[CEnum]`
[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: useless use of `format!`
[INFO] [stderr]    --> src/lib.rs:293:31
[INFO] [stderr]     |
[INFO] [stderr] 293 |                               format!("rust-enum-derive wasn't a table")))
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"rust-enum-derive wasn't a table".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: you seem to be trying to match on a boolean expression
[INFO] [stderr]    --> src/lib.rs:340:14
[INFO] [stderr]     |
[INFO] [stderr] 340 |       let re = match parse_enum {
[INFO] [stderr]     |  ______________^
[INFO] [stderr] 341 | |         true => Regex::new(r"^[:space:]*([[:alnum:]_]+)([:space:]*=[:space:]*([:graph:]+))?[:space:]*,").unwrap(),
[INFO] [stderr] 342 | |         false => Regex::new(r"^#define[:space:]+([:graph:]+)[:space:]+([:graph:]+)").unwrap(),
[INFO] [stderr] 343 | |     };
[INFO] [stderr]     | |_____^ help: consider using an if/else expression: `if parse_enum { Regex::new(r"^[:space:]*([[:alnum:]_]+)([:space:]*=[:space:]*([:graph:]+))?[:space:]*,").unwrap() } else { Regex::new(r"^#define[:space:]+([:graph:]+)[:space:]+([:graph:]+)").unwrap() }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_bool)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]    --> src/lib.rs:350:26
[INFO] [stderr]     |
[INFO] [stderr] 350 |               let i: i32 = match parse_enum {
[INFO] [stderr]     |  __________________________^
[INFO] [stderr] 351 | |                 true => match cap.at(3) {
[INFO] [stderr] 352 | |                     Some(s) => get_num(s),
[INFO] [stderr] 353 | |                     None => num,
[INFO] [stderr] 354 | |                 },
[INFO] [stderr] 355 | |                 false => get_num(cap.at(2).unwrap()),
[INFO] [stderr] 356 | |             };
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] help: consider using an if/else expression
[INFO] [stderr]     |
[INFO] [stderr] 350 |             let i: i32 = if parse_enum { match cap.at(3) {
[INFO] [stderr] 351 |     Some(s) => get_num(s),
[INFO] [stderr] 352 |     None => num,
[INFO] [stderr] 353 | } } else { get_num(cap.at(2).unwrap()) };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to one
[INFO] [stderr]    --> src/lib.rs:414:8
[INFO] [stderr]     |
[INFO] [stderr] 414 |     if vi.len() < 1 {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `vi.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: function `test_CENum_order` should have a snake case name such as `test_cenum_order`
[INFO] [stderr]    --> src/lib.rs:506:1
[INFO] [stderr]     |
[INFO] [stderr] 506 | / fn test_CENum_order() {
[INFO] [stderr] 507 | |     let a = CEnum::new(0, "");
[INFO] [stderr] 508 | |     let b = CEnum::new(1, "");
[INFO] [stderr] 509 | |     let c = CEnum::new(2, "");
[INFO] [stderr] ...   |
[INFO] [stderr] 517 | |     assert!(a == d);
[INFO] [stderr] 518 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/lib.rs:210:42
[INFO] [stderr]     |
[INFO] [stderr] 210 |     fn write(&self, w: &mut Write, name: &String, derive: Option<&String>, hex: bool, vec: &Vec<CEnum>) -> Result<()> {
[INFO] [stderr]     |                                          ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:210:92
[INFO] [stderr]     |
[INFO] [stderr] 210 |     fn write(&self, w: &mut Write, name: &String, derive: Option<&String>, hex: bool, vec: &Vec<CEnum>) -> Result<()> {
[INFO] [stderr]     |                                                                                            ^^^^^^^^^^^ help: change this to: `&[CEnum]`
[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/lib.rs:212:9
[INFO] [stderr]     |
[INFO] [stderr] 212 | /         match derive
[INFO] [stderr] 213 | |         {
[INFO] [stderr] 214 | |             Some(s) => try!(write!(w, "#[derive({})]\n", s)),
[INFO] [stderr] 215 | |             None => (),
[INFO] [stderr] 216 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Some(s) = derive { try!(write!(w, "#[derive({})]\n", s)) }`
[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: useless use of `format!`
[INFO] [stderr]    --> src/lib.rs:293:31
[INFO] [stderr]     |
[INFO] [stderr] 293 |                               format!("rust-enum-derive wasn't a table")))
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"rust-enum-derive wasn't a table".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: you seem to be trying to match on a boolean expression
[INFO] [stderr]    --> src/lib.rs:340:14
[INFO] [stderr]     |
[INFO] [stderr] 340 |       let re = match parse_enum {
[INFO] [stderr]     |  ______________^
[INFO] [stderr] 341 | |         true => Regex::new(r"^[:space:]*([[:alnum:]_]+)([:space:]*=[:space:]*([:graph:]+))?[:space:]*,").unwrap(),
[INFO] [stderr] 342 | |         false => Regex::new(r"^#define[:space:]+([:graph:]+)[:space:]+([:graph:]+)").unwrap(),
[INFO] [stderr] 343 | |     };
[INFO] [stderr]     | |_____^ help: consider using an if/else expression: `if parse_enum { Regex::new(r"^[:space:]*([[:alnum:]_]+)([:space:]*=[:space:]*([:graph:]+))?[:space:]*,").unwrap() } else { Regex::new(r"^#define[:space:]+([:graph:]+)[:space:]+([:graph:]+)").unwrap() }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_bool)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]    --> src/lib.rs:350:26
[INFO] [stderr]     |
[INFO] [stderr] 350 |               let i: i32 = match parse_enum {
[INFO] [stderr]     |  __________________________^
[INFO] [stderr] 351 | |                 true => match cap.at(3) {
[INFO] [stderr] 352 | |                     Some(s) => get_num(s),
[INFO] [stderr] 353 | |                     None => num,
[INFO] [stderr] 354 | |                 },
[INFO] [stderr] 355 | |                 false => get_num(cap.at(2).unwrap()),
[INFO] [stderr] 356 | |             };
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] help: consider using an if/else expression
[INFO] [stderr]     |
[INFO] [stderr] 350 |             let i: i32 = if parse_enum { match cap.at(3) {
[INFO] [stderr] 351 |     Some(s) => get_num(s),
[INFO] [stderr] 352 |     None => num,
[INFO] [stderr] 353 | } } else { get_num(cap.at(2).unwrap()) };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to one
[INFO] [stderr]    --> src/lib.rs:414:8
[INFO] [stderr]     |
[INFO] [stderr] 414 |     if vi.len() < 1 {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `vi.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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/main.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 | /         match traverse_dir(&input_dir, &output_dir)
[INFO] [stderr] 115 | |         {
[INFO] [stderr] 116 | |             Err(e) => panic!("{}", e),
[INFO] [stderr] 117 | |             _ => ()
[INFO] [stderr] 118 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Err(e) = traverse_dir(&input_dir, &output_dir) { panic!("{}", e) }`
[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: use as_ref() instead
[INFO] [stderr]    --> src/main.rs:126:32
[INFO] [stderr]     |
[INFO] [stderr] 126 |           let file_path_in_ref = match file_path_in {
[INFO] [stderr]     |  ________________________________^
[INFO] [stderr] 127 | |             Some(ref fp) => Some(fp),
[INFO] [stderr] 128 | |             None => None,
[INFO] [stderr] 129 | |         };
[INFO] [stderr]     | |_________^ help: try this: `file_path_in.as_ref()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_as_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_as_ref
[INFO] [stderr] 
[INFO] [stderr] warning: use as_ref() instead
[INFO] [stderr]    --> src/main.rs:136:33
[INFO] [stderr]     |
[INFO] [stderr] 136 |           let file_path_out_ref = match file_path_out {
[INFO] [stderr]     |  _________________________________^
[INFO] [stderr] 137 | |             Some(ref fp) => Some(fp),
[INFO] [stderr] 138 | |             None => None,
[INFO] [stderr] 139 | |         };
[INFO] [stderr]     | |_________^ help: try this: `file_path_out.as_ref()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_as_ref
[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/main.rs:141:9
[INFO] [stderr]     |
[INFO] [stderr] 141 | /         match process(file_path_in_ref, file_path_out_ref, &file_args)
[INFO] [stderr] 142 | |         {
[INFO] [stderr] 143 | |             Err(e) => panic!("{}", e),
[INFO] [stderr] 144 | |             _ => ()
[INFO] [stderr] 145 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Err(e) = process(file_path_in_ref, file_path_out_ref, &file_args) { panic!("{}", e) }`
[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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/main.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 | /         match traverse_dir(&input_dir, &output_dir)
[INFO] [stderr] 115 | |         {
[INFO] [stderr] 116 | |             Err(e) => panic!("{}", e),
[INFO] [stderr] 117 | |             _ => ()
[INFO] [stderr] 118 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Err(e) = traverse_dir(&input_dir, &output_dir) { panic!("{}", e) }`
[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: use as_ref() instead
[INFO] [stderr]    --> src/main.rs:126:32
[INFO] [stderr]     |
[INFO] [stderr] 126 |           let file_path_in_ref = match file_path_in {
[INFO] [stderr]     |  ________________________________^
[INFO] [stderr] 127 | |             Some(ref fp) => Some(fp),
[INFO] [stderr] 128 | |             None => None,
[INFO] [stderr] 129 | |         };
[INFO] [stderr]     | |_________^ help: try this: `file_path_in.as_ref()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_as_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_as_ref
[INFO] [stderr] 
[INFO] [stderr] warning: use as_ref() instead
[INFO] [stderr]    --> src/main.rs:136:33
[INFO] [stderr]     |
[INFO] [stderr] 136 |           let file_path_out_ref = match file_path_out {
[INFO] [stderr]     |  _________________________________^
[INFO] [stderr] 137 | |             Some(ref fp) => Some(fp),
[INFO] [stderr] 138 | |             None => None,
[INFO] [stderr] 139 | |         };
[INFO] [stderr]     | |_________^ help: try this: `file_path_out.as_ref()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_as_ref
[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/main.rs:141:9
[INFO] [stderr]     |
[INFO] [stderr] 141 | /         match process(file_path_in_ref, file_path_out_ref, &file_args)
[INFO] [stderr] 142 | |         {
[INFO] [stderr] 143 | |             Err(e) => panic!("{}", e),
[INFO] [stderr] 144 | |             _ => ()
[INFO] [stderr] 145 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Err(e) = process(file_path_in_ref, file_path_out_ref, &file_args) { panic!("{}", e) }`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `"docker" "inspect" "3fe32b7dace90f6c0a81e49df40f2dbd092df0fbb1a178fda1199b75226236f9"`
[INFO] running `"docker" "rm" "-f" "3fe32b7dace90f6c0a81e49df40f2dbd092df0fbb1a178fda1199b75226236f9"`
[INFO] [stdout] 3fe32b7dace90f6c0a81e49df40f2dbd092df0fbb1a178fda1199b75226236f9