[INFO] crate taxo 0.1.0 is already in cache
[INFO] extracting crate taxo 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/taxo/0.1.0
[INFO] extracting crate taxo 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/taxo/0.1.0
[INFO] validating manifest of taxo-0.1.0 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 taxo-0.1.0 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 taxo-0.1.0
[INFO] finished frobbing taxo-0.1.0
[INFO] frobbed toml for taxo-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/taxo/0.1.0/Cargo.toml
[INFO] started frobbing taxo-0.1.0
[INFO] finished frobbing taxo-0.1.0
[INFO] frobbed toml for taxo-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/taxo/0.1.0/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 taxo-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/taxo/0.1.0:/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] 699af3c1792d7ff96930ad1bd1bd6d04e2377aed833953c7797d2beb2ced02e8
[INFO] running `"docker" "start" "-a" "699af3c1792d7ff96930ad1bd1bd6d04e2377aed833953c7797d2beb2ced02e8"`
[INFO] [stderr]     Checking taxo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/taxo/rules.rs:40:14
[INFO] [stderr]    |
[INFO] [stderr] 40 |   Ok(Rules { rules_list: rules_list })
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `rules_list`
[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/taxo/rule/glob.rs:45:7
[INFO] [stderr]    |
[INFO] [stderr] 45 |       opts: opts,
[INFO] [stderr]    |       ^^^^^^^^^^ help: replace it with: `opts`
[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/taxo/rule/glob.rs:46:7
[INFO] [stderr]    |
[INFO] [stderr] 46 |       value: value,
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: replace it with: `value`
[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/taxo/rule/regex.rs:22:7
[INFO] [stderr]    |
[INFO] [stderr] 22 |       value: value,
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: replace it with: `value`
[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/taxo/rules.rs:40:14
[INFO] [stderr]    |
[INFO] [stderr] 40 |   Ok(Rules { rules_list: rules_list })
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `rules_list`
[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/taxo/rule/glob.rs:45:7
[INFO] [stderr]    |
[INFO] [stderr] 45 |       opts: opts,
[INFO] [stderr]    |       ^^^^^^^^^^ help: replace it with: `opts`
[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/taxo/rule/glob.rs:46:7
[INFO] [stderr]    |
[INFO] [stderr] 46 |       value: value,
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: replace it with: `value`
[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/taxo/rule/regex.rs:22:7
[INFO] [stderr]    |
[INFO] [stderr] 22 |       value: value,
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: replace it with: `value`
[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: unneeded return statement
[INFO] [stderr]   --> src/taxo/rules.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |       Err(e) => return Err(format!("io error while reading file {}", e.description())),
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(format!("io error while reading file {}", e.description()))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/taxo/rules.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |       Err(e) => return Err(format!("io error while reading file {}", e.description())),
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(format!("io error while reading file {}", e.description()))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/taxo/rules.rs:27:62
[INFO] [stderr]    |
[INFO] [stderr] 27 |       Ok(l) => if l != "" { rule::parse(String::from(l)).map(|r| Some(r)) } else { Ok(None) },
[INFO] [stderr]    |                                                              ^^^^^^^^^^^ help: remove closure as shown: `Some`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/taxo/rules.rs:27:41
[INFO] [stderr]    |
[INFO] [stderr] 27 |       Ok(l) => if l != "" { rule::parse(String::from(l)).map(|r| Some(r)) } else { Ok(None) },
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `l`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[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/taxo/rule/glob.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 | /     match opts_opt {
[INFO] [stderr] 28 | |       Some(optstr) => {
[INFO] [stderr] 29 | |         for ch in optstr.chars() {
[INFO] [stderr] 30 | |           match ch {
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |       None => {}
[INFO] [stderr] 41 | |     };
[INFO] [stderr]    | |_____^
[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] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 27 |     if let Some(optstr) = opts_opt {
[INFO] [stderr] 28 |   for ch in optstr.chars() {
[INFO] [stderr] 29 |     match ch {
[INFO] [stderr] 30 |       'h' | 'd' => opts.require_literal_leading_dot = false,
[INFO] [stderr] 31 |       's' => opts.require_literal_separator = false,
[INFO] [stderr] 32 |       'S' => opts.require_literal_separator = true,
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/taxo/rule/mod.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Some(ch) => line.split(ch).map(|s| String::from(s)),
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/taxo/rule/mod.rs:44:35
[INFO] [stderr]    |
[INFO] [stderr] 44 |     ('r', None) => RegexRule::new(String::from(rule), None, value).map(|rr| rr as Box<Matchable>),
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `rule`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/taxo/rule/mod.rs:46:22
[INFO] [stderr]    |
[INFO] [stderr] 46 |       RegexRule::new(String::from(value), Some(rule), last).map(|rr| rr as Box<Matchable>)
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `value`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/taxo/rules.rs:27:62
[INFO] [stderr]    |
[INFO] [stderr] 27 |       Ok(l) => if l != "" { rule::parse(String::from(l)).map(|r| Some(r)) } else { Ok(None) },
[INFO] [stderr]    |                                                              ^^^^^^^^^^^ help: remove closure as shown: `Some`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/taxo/rules.rs:27:41
[INFO] [stderr]    |
[INFO] [stderr] 27 |       Ok(l) => if l != "" { rule::parse(String::from(l)).map(|r| Some(r)) } else { Ok(None) },
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `l`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[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/taxo/rule/glob.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 | /     match opts_opt {
[INFO] [stderr] 28 | |       Some(optstr) => {
[INFO] [stderr] 29 | |         for ch in optstr.chars() {
[INFO] [stderr] 30 | |           match ch {
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |       None => {}
[INFO] [stderr] 41 | |     };
[INFO] [stderr]    | |_____^
[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] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 27 |     if let Some(optstr) = opts_opt {
[INFO] [stderr] 28 |   for ch in optstr.chars() {
[INFO] [stderr] 29 |     match ch {
[INFO] [stderr] 30 |       'h' | 'd' => opts.require_literal_leading_dot = false,
[INFO] [stderr] 31 |       's' => opts.require_literal_separator = false,
[INFO] [stderr] 32 |       'S' => opts.require_literal_separator = true,
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/taxo/rule/mod.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Some(ch) => line.split(ch).map(|s| String::from(s)),
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/taxo/rule/mod.rs:44:35
[INFO] [stderr]    |
[INFO] [stderr] 44 |     ('r', None) => RegexRule::new(String::from(rule), None, value).map(|rr| rr as Box<Matchable>),
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `rule`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/taxo/rule/mod.rs:46:22
[INFO] [stderr]    |
[INFO] [stderr] 46 |       RegexRule::new(String::from(value), Some(rule), last).map(|rr| rr as Box<Matchable>)
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `value`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/taxo/rules.rs:40:14
[INFO] [stderr]    |
[INFO] [stderr] 40 |   Ok(Rules { rules_list: rules_list })
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `rules_list`
[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/taxo/rule/glob.rs:45:7
[INFO] [stderr]    |
[INFO] [stderr] 45 |       opts: opts,
[INFO] [stderr]    |       ^^^^^^^^^^ help: replace it with: `opts`
[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/taxo/rule/glob.rs:46:7
[INFO] [stderr]    |
[INFO] [stderr] 46 |       value: value,
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: replace it with: `value`
[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/taxo/rule/regex.rs:22:7
[INFO] [stderr]    |
[INFO] [stderr] 22 |       value: value,
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: replace it with: `value`
[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/taxo/rules.rs:40:14
[INFO] [stderr]    |
[INFO] [stderr] 40 |   Ok(Rules { rules_list: rules_list })
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `rules_list`
[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/taxo/rule/glob.rs:45:7
[INFO] [stderr]    |
[INFO] [stderr] 45 |       opts: opts,
[INFO] [stderr]    |       ^^^^^^^^^^ help: replace it with: `opts`
[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/taxo/rule/glob.rs:46:7
[INFO] [stderr]    |
[INFO] [stderr] 46 |       value: value,
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: replace it with: `value`
[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/taxo/rule/regex.rs:22:7
[INFO] [stderr]    |
[INFO] [stderr] 22 |       value: value,
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: replace it with: `value`
[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: unneeded return statement
[INFO] [stderr]   --> src/taxo/rules.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |       Err(e) => return Err(format!("io error while reading file {}", e.description())),
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(format!("io error while reading file {}", e.description()))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/main.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | const USAGE: &'static str = "
[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: redundant closure found
[INFO] [stderr]   --> src/taxo/rules.rs:27:62
[INFO] [stderr]    |
[INFO] [stderr] 27 |       Ok(l) => if l != "" { rule::parse(String::from(l)).map(|r| Some(r)) } else { Ok(None) },
[INFO] [stderr]    |                                                              ^^^^^^^^^^^ help: remove closure as shown: `Some`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/taxo/rules.rs:27:41
[INFO] [stderr]    |
[INFO] [stderr] 27 |       Ok(l) => if l != "" { rule::parse(String::from(l)).map(|r| Some(r)) } else { Ok(None) },
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `l`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[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/taxo/rule/glob.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 | /     match opts_opt {
[INFO] [stderr] 28 | |       Some(optstr) => {
[INFO] [stderr] 29 | |         for ch in optstr.chars() {
[INFO] [stderr] 30 | |           match ch {
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |       None => {}
[INFO] [stderr] 41 | |     };
[INFO] [stderr]    | |_____^
[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] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 27 |     if let Some(optstr) = opts_opt {
[INFO] [stderr] 28 |   for ch in optstr.chars() {
[INFO] [stderr] 29 |     match ch {
[INFO] [stderr] 30 |       'h' | 'd' => opts.require_literal_leading_dot = false,
[INFO] [stderr] 31 |       's' => opts.require_literal_separator = false,
[INFO] [stderr] 32 |       'S' => opts.require_literal_separator = true,
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/taxo/rule/mod.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Some(ch) => line.split(ch).map(|s| String::from(s)),
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/taxo/rule/mod.rs:44:35
[INFO] [stderr]    |
[INFO] [stderr] 44 |     ('r', None) => RegexRule::new(String::from(rule), None, value).map(|rr| rr as Box<Matchable>),
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `rule`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/taxo/rule/mod.rs:46:22
[INFO] [stderr]    |
[INFO] [stderr] 46 |       RegexRule::new(String::from(value), Some(rule), last).map(|rr| rr as Box<Matchable>)
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `value`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/taxo/rules.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |       Err(e) => return Err(format!("io error while reading file {}", e.description())),
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(format!("io error while reading file {}", e.description()))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/main.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | const USAGE: &'static str = "
[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: redundant closure found
[INFO] [stderr]   --> src/taxo/rules.rs:27:62
[INFO] [stderr]    |
[INFO] [stderr] 27 |       Ok(l) => if l != "" { rule::parse(String::from(l)).map(|r| Some(r)) } else { Ok(None) },
[INFO] [stderr]    |                                                              ^^^^^^^^^^^ help: remove closure as shown: `Some`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/taxo/rules.rs:27:41
[INFO] [stderr]    |
[INFO] [stderr] 27 |       Ok(l) => if l != "" { rule::parse(String::from(l)).map(|r| Some(r)) } else { Ok(None) },
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `l`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[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/taxo/rule/glob.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 | /     match opts_opt {
[INFO] [stderr] 28 | |       Some(optstr) => {
[INFO] [stderr] 29 | |         for ch in optstr.chars() {
[INFO] [stderr] 30 | |           match ch {
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |       None => {}
[INFO] [stderr] 41 | |     };
[INFO] [stderr]    | |_____^
[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] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 27 |     if let Some(optstr) = opts_opt {
[INFO] [stderr] 28 |   for ch in optstr.chars() {
[INFO] [stderr] 29 |     match ch {
[INFO] [stderr] 30 |       'h' | 'd' => opts.require_literal_leading_dot = false,
[INFO] [stderr] 31 |       's' => opts.require_literal_separator = false,
[INFO] [stderr] 32 |       'S' => opts.require_literal_separator = true,
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/taxo/rule/mod.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Some(ch) => line.split(ch).map(|s| String::from(s)),
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/taxo/rule/mod.rs:44:35
[INFO] [stderr]    |
[INFO] [stderr] 44 |     ('r', None) => RegexRule::new(String::from(rule), None, value).map(|rr| rr as Box<Matchable>),
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `rule`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/taxo/rule/mod.rs:46:22
[INFO] [stderr]    |
[INFO] [stderr] 46 |       RegexRule::new(String::from(value), Some(rule), last).map(|rr| rr as Box<Matchable>)
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `value`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.03s
[INFO] running `"docker" "inspect" "699af3c1792d7ff96930ad1bd1bd6d04e2377aed833953c7797d2beb2ced02e8"`
[INFO] running `"docker" "rm" "-f" "699af3c1792d7ff96930ad1bd1bd6d04e2377aed833953c7797d2beb2ced02e8"`
[INFO] [stdout] 699af3c1792d7ff96930ad1bd1bd6d04e2377aed833953c7797d2beb2ced02e8