[INFO] crate google-container1 1.0.8+20180917 is already in cache
[INFO] extracting crate google-container1 1.0.8+20180917 into work/ex/clippy-test-run/sources/stable/reg/google-container1/1.0.8+20180917
[INFO] extracting crate google-container1 1.0.8+20180917 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/google-container1/1.0.8+20180917
[INFO] validating manifest of google-container1-1.0.8+20180917 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 google-container1-1.0.8+20180917 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 google-container1-1.0.8+20180917
[INFO] finished frobbing google-container1-1.0.8+20180917
[INFO] frobbed toml for google-container1-1.0.8+20180917 written to work/ex/clippy-test-run/sources/stable/reg/google-container1/1.0.8+20180917/Cargo.toml
[INFO] started frobbing google-container1-1.0.8+20180917
[INFO] finished frobbing google-container1-1.0.8+20180917
[INFO] frobbed toml for google-container1-1.0.8+20180917 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/google-container1/1.0.8+20180917/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 google-container1-1.0.8+20180917 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/google-container1/1.0.8+20180917:/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] 906fecc4e72d8bcf86272feed23b8fabba8ca986e270adecfcda987424731390
[INFO] running `"docker" "start" "-a" "906fecc4e72d8bcf86272feed23b8fabba8ca986e270adecfcda987424731390"`
[INFO] [stderr]     Checking google-container1 v1.0.8+20180917 (/opt/crater/workdir)
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/cmn.rs:360:18
[INFO] [stderr]     |
[INFO] [stderr] 360 | const BOUNDARY: &'static str = "MDuXWGyeE33QFXGchb2VFWc4Z7945d";
[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/cmn.rs:594:32
[INFO] [stderr]     |
[INFO] [stderr] 594 |                 const PREFIX: &'static str = "bytes ";
[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: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/cmn.rs:360:18
[INFO] [stderr]     |
[INFO] [stderr] 360 | const BOUNDARY: &'static str = "MDuXWGyeE33QFXGchb2VFWc4Z7945d";
[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/cmn.rs:594:32
[INFO] [stderr]     |
[INFO] [stderr] 594 |                 const PREFIX: &'static str = "bytes ";
[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: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]    --> src/cmn.rs:312:45
[INFO] [stderr]     |
[INFO] [stderr] 312 | /                                             match &err.location {
[INFO] [stderr] 313 | |                                                 &Some(ref loc) => format!("@{}", loc),
[INFO] [stderr] 314 | |                                                 &None => String::new(),
[INFO] [stderr] 315 | |                                             }));
[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: try
[INFO] [stderr]     |
[INFO] [stderr] 312 |                                             match err.location {
[INFO] [stderr] 313 |                                                 Some(ref loc) => format!("@{}", loc),
[INFO] [stderr] 314 |                                                 None => String::new(),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/cmn.rs:411:9
[INFO] [stderr]     |
[INFO] [stderr] 411 |         self.raw_parts.len() == 0 && self.current_part.is_none() && self.last_part_boundary.is_none()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.raw_parts.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: length comparison to zero
[INFO] [stderr]    --> src/cmn.rs:416:9
[INFO] [stderr]     |
[INFO] [stderr] 416 |         self.raw_parts.len() == 0 && self.current_part.is_some()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.raw_parts.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/cmn.rs:492:5
[INFO] [stderr]     |
[INFO] [stderr] 492 |     fn deref<'a>(&'a self) -> &'a Mime { &self.0 }
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/cmn.rs:495:5
[INFO] [stderr]     |
[INFO] [stderr] 495 |     fn deref_mut<'a>(&'a mut self) -> &'a mut Mime { &mut self.0 }
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/cmn.rs:591:12
[INFO] [stderr]     |
[INFO] [stderr] 591 |         if raw.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!raw.is_empty()`
[INFO] [stderr]     |
[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/cmn.rs:735:5
[INFO] [stderr]     |
[INFO] [stderr] 735 | /     match *value {
[INFO] [stderr] 736 | |         json::value::Value::Object(ref mut map) => {
[INFO] [stderr] 737 | |             let mut for_removal = Vec::new();
[INFO] [stderr] 738 | |
[INFO] [stderr] ...   |
[INFO] [stderr] 751 | |         _ => {}
[INFO] [stderr] 752 | |     }
[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] 735 |     if let json::value::Value::Object(ref mut map) = *value {
[INFO] [stderr] 736 |     let mut for_removal = Vec::new();
[INFO] [stderr] 737 | 
[INFO] [stderr] 738 |     for (key, mut value) in map.iter_mut() {
[INFO] [stderr] 739 |         if value.is_null() {
[INFO] [stderr] 740 |             for_removal.push(key.clone());
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:4095:12
[INFO] [stderr]      |
[INFO] [stderr] 4095 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:4121:12
[INFO] [stderr]      |
[INFO] [stderr] 4121 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:4399:12
[INFO] [stderr]      |
[INFO] [stderr] 4399 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:4411:43
[INFO] [stderr]      |
[INFO] [stderr] 4411 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::char_lit_as_u8)] on by default
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:4428:12
[INFO] [stderr]      |
[INFO] [stderr] 4428 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:4686:12
[INFO] [stderr]      |
[INFO] [stderr] 4686 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:4712:12
[INFO] [stderr]      |
[INFO] [stderr] 4712 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[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 don't need to add `&` to both the expression and the patterns
[INFO] [stderr]    --> src/cmn.rs:312:45
[INFO] [stderr]     |
[INFO] [stderr] 312 | /                                             match &err.location {
[INFO] [stderr] 313 | |                                                 &Some(ref loc) => format!("@{}", loc),
[INFO] [stderr] 314 | |                                                 &None => String::new(),
[INFO] [stderr] 315 | |                                             }));
[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: try
[INFO] [stderr]     |
[INFO] [stderr] 312 |                                             match err.location {
[INFO] [stderr] 313 |                                                 Some(ref loc) => format!("@{}", loc),
[INFO] [stderr] 314 |                                                 None => String::new(),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/cmn.rs:411:9
[INFO] [stderr]     |
[INFO] [stderr] 411 |         self.raw_parts.len() == 0 && self.current_part.is_none() && self.last_part_boundary.is_none()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.raw_parts.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: length comparison to zero
[INFO] [stderr]    --> src/cmn.rs:416:9
[INFO] [stderr]     |
[INFO] [stderr] 416 |         self.raw_parts.len() == 0 && self.current_part.is_some()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.raw_parts.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/cmn.rs:492:5
[INFO] [stderr]     |
[INFO] [stderr] 492 |     fn deref<'a>(&'a self) -> &'a Mime { &self.0 }
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/cmn.rs:495:5
[INFO] [stderr]     |
[INFO] [stderr] 495 |     fn deref_mut<'a>(&'a mut self) -> &'a mut Mime { &mut self.0 }
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/cmn.rs:591:12
[INFO] [stderr]     |
[INFO] [stderr] 591 |         if raw.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!raw.is_empty()`
[INFO] [stderr]     |
[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/cmn.rs:735:5
[INFO] [stderr]     |
[INFO] [stderr] 735 | /     match *value {
[INFO] [stderr] 736 | |         json::value::Value::Object(ref mut map) => {
[INFO] [stderr] 737 | |             let mut for_removal = Vec::new();
[INFO] [stderr] 738 | |
[INFO] [stderr] ...   |
[INFO] [stderr] 751 | |         _ => {}
[INFO] [stderr] 752 | |     }
[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] 735 |     if let json::value::Value::Object(ref mut map) = *value {
[INFO] [stderr] 736 |     let mut for_removal = Vec::new();
[INFO] [stderr] 737 | 
[INFO] [stderr] 738 |     for (key, mut value) in map.iter_mut() {
[INFO] [stderr] 739 |         if value.is_null() {
[INFO] [stderr] 740 |             for_removal.push(key.clone());
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:4994:12
[INFO] [stderr]      |
[INFO] [stderr] 4994 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:5020:12
[INFO] [stderr]      |
[INFO] [stderr] 5020 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:5312:12
[INFO] [stderr]      |
[INFO] [stderr] 5312 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:5324:43
[INFO] [stderr]      |
[INFO] [stderr] 5324 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:5341:12
[INFO] [stderr]      |
[INFO] [stderr] 5341 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:5623:12
[INFO] [stderr]      |
[INFO] [stderr] 5623 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:5635:43
[INFO] [stderr]      |
[INFO] [stderr] 5635 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:5652:12
[INFO] [stderr]      |
[INFO] [stderr] 5652 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:5915:12
[INFO] [stderr]      |
[INFO] [stderr] 5915 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:5941:12
[INFO] [stderr]      |
[INFO] [stderr] 5941 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:6240:12
[INFO] [stderr]      |
[INFO] [stderr] 6240 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:6266:12
[INFO] [stderr]      |
[INFO] [stderr] 6266 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:6528:12
[INFO] [stderr]      |
[INFO] [stderr] 6528 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:6554:12
[INFO] [stderr]      |
[INFO] [stderr] 6554 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:6808:12
[INFO] [stderr]      |
[INFO] [stderr] 6808 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:6834:12
[INFO] [stderr]      |
[INFO] [stderr] 6834 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:7116:12
[INFO] [stderr]      |
[INFO] [stderr] 7116 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:7142:12
[INFO] [stderr]      |
[INFO] [stderr] 7142 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:7425:12
[INFO] [stderr]      |
[INFO] [stderr] 7425 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:7437:43
[INFO] [stderr]      |
[INFO] [stderr] 7437 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:7454:12
[INFO] [stderr]      |
[INFO] [stderr] 7454 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:7704:12
[INFO] [stderr]      |
[INFO] [stderr] 7704 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:7716:43
[INFO] [stderr]      |
[INFO] [stderr] 7716 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:7733:12
[INFO] [stderr]      |
[INFO] [stderr] 7733 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8000:12
[INFO] [stderr]      |
[INFO] [stderr] 8000 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:8012:43
[INFO] [stderr]      |
[INFO] [stderr] 8012 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8029:12
[INFO] [stderr]      |
[INFO] [stderr] 8029 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8298:12
[INFO] [stderr]      |
[INFO] [stderr] 8298 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8324:12
[INFO] [stderr]      |
[INFO] [stderr] 8324 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8611:12
[INFO] [stderr]      |
[INFO] [stderr] 8611 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:8623:43
[INFO] [stderr]      |
[INFO] [stderr] 8623 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8640:12
[INFO] [stderr]      |
[INFO] [stderr] 8640 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8910:12
[INFO] [stderr]      |
[INFO] [stderr] 8910 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8936:12
[INFO] [stderr]      |
[INFO] [stderr] 8936 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:9204:12
[INFO] [stderr]      |
[INFO] [stderr] 9204 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:9216:43
[INFO] [stderr]      |
[INFO] [stderr] 9216 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:9233:12
[INFO] [stderr]      |
[INFO] [stderr] 9233 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:9495:12
[INFO] [stderr]      |
[INFO] [stderr] 9495 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:9507:43
[INFO] [stderr]      |
[INFO] [stderr] 9507 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:9524:12
[INFO] [stderr]      |
[INFO] [stderr] 9524 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:9784:12
[INFO] [stderr]      |
[INFO] [stderr] 9784 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:9796:43
[INFO] [stderr]      |
[INFO] [stderr] 9796 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:9813:12
[INFO] [stderr]      |
[INFO] [stderr] 9813 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10062:12
[INFO] [stderr]       |
[INFO] [stderr] 10062 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10088:12
[INFO] [stderr]       |
[INFO] [stderr] 10088 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10351:12
[INFO] [stderr]       |
[INFO] [stderr] 10351 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:10363:43
[INFO] [stderr]       |
[INFO] [stderr] 10363 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10380:12
[INFO] [stderr]       |
[INFO] [stderr] 10380 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10635:12
[INFO] [stderr]       |
[INFO] [stderr] 10635 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:10647:43
[INFO] [stderr]       |
[INFO] [stderr] 10647 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10664:12
[INFO] [stderr]       |
[INFO] [stderr] 10664 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10919:12
[INFO] [stderr]       |
[INFO] [stderr] 10919 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:10931:43
[INFO] [stderr]       |
[INFO] [stderr] 10931 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10948:12
[INFO] [stderr]       |
[INFO] [stderr] 10948 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:11207:12
[INFO] [stderr]       |
[INFO] [stderr] 11207 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:11233:12
[INFO] [stderr]       |
[INFO] [stderr] 11233 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:11524:12
[INFO] [stderr]       |
[INFO] [stderr] 11524 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:11550:12
[INFO] [stderr]       |
[INFO] [stderr] 11550 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:11813:12
[INFO] [stderr]       |
[INFO] [stderr] 11813 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:11825:43
[INFO] [stderr]       |
[INFO] [stderr] 11825 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:11842:12
[INFO] [stderr]       |
[INFO] [stderr] 11842 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:4095:12
[INFO] [stderr]      |
[INFO] [stderr] 4095 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:4121:12
[INFO] [stderr]      |
[INFO] [stderr] 4121 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:12096:12
[INFO] [stderr]       |
[INFO] [stderr] 12096 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:12108:43
[INFO] [stderr]       |
[INFO] [stderr] 12108 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:12125:12
[INFO] [stderr]       |
[INFO] [stderr] 12125 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:4399:12
[INFO] [stderr]      |
[INFO] [stderr] 4399 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:4411:43
[INFO] [stderr]      |
[INFO] [stderr] 4411 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::char_lit_as_u8)] on by default
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:4428:12
[INFO] [stderr]      |
[INFO] [stderr] 4428 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:4686:12
[INFO] [stderr]      |
[INFO] [stderr] 4686 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:4712:12
[INFO] [stderr]      |
[INFO] [stderr] 4712 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:4994:12
[INFO] [stderr]      |
[INFO] [stderr] 4994 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:5020:12
[INFO] [stderr]      |
[INFO] [stderr] 5020 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:12382:12
[INFO] [stderr]       |
[INFO] [stderr] 12382 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:12408:12
[INFO] [stderr]       |
[INFO] [stderr] 12408 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:5312:12
[INFO] [stderr]      |
[INFO] [stderr] 5312 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:12690:12
[INFO] [stderr]       |
[INFO] [stderr] 12690 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:5324:43
[INFO] [stderr]      |
[INFO] [stderr] 5324 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:12716:12
[INFO] [stderr]       |
[INFO] [stderr] 12716 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:5341:12
[INFO] [stderr]      |
[INFO] [stderr] 5341 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:12995:12
[INFO] [stderr]       |
[INFO] [stderr] 12995 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:5623:12
[INFO] [stderr]      |
[INFO] [stderr] 5623 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:13021:12
[INFO] [stderr]       |
[INFO] [stderr] 13021 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:5635:43
[INFO] [stderr]      |
[INFO] [stderr] 5635 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:5652:12
[INFO] [stderr]      |
[INFO] [stderr] 5652 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:5915:12
[INFO] [stderr]      |
[INFO] [stderr] 5915 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:13279:12
[INFO] [stderr]       |
[INFO] [stderr] 13279 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:5941:12
[INFO] [stderr]      |
[INFO] [stderr] 5941 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:13305:12
[INFO] [stderr]       |
[INFO] [stderr] 13305 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:13600:12
[INFO] [stderr]       |
[INFO] [stderr] 13600 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:6240:12
[INFO] [stderr]      |
[INFO] [stderr] 6240 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:6266:12
[INFO] [stderr]      |
[INFO] [stderr] 6266 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:13626:12
[INFO] [stderr]       |
[INFO] [stderr] 13626 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:6528:12
[INFO] [stderr]      |
[INFO] [stderr] 6528 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:6554:12
[INFO] [stderr]      |
[INFO] [stderr] 6554 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:13916:12
[INFO] [stderr]       |
[INFO] [stderr] 13916 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:13928:43
[INFO] [stderr]       |
[INFO] [stderr] 13928 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:13945:12
[INFO] [stderr]       |
[INFO] [stderr] 13945 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:6808:12
[INFO] [stderr]      |
[INFO] [stderr] 6808 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:6834:12
[INFO] [stderr]      |
[INFO] [stderr] 6834 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:14211:12
[INFO] [stderr]       |
[INFO] [stderr] 14211 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:14223:43
[INFO] [stderr]       |
[INFO] [stderr] 14223 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:14240:12
[INFO] [stderr]       |
[INFO] [stderr] 14240 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:7116:12
[INFO] [stderr]      |
[INFO] [stderr] 7116 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:7142:12
[INFO] [stderr]      |
[INFO] [stderr] 7142 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:14494:12
[INFO] [stderr]       |
[INFO] [stderr] 14494 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:14506:43
[INFO] [stderr]       |
[INFO] [stderr] 14506 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:14523:12
[INFO] [stderr]       |
[INFO] [stderr] 14523 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:7425:12
[INFO] [stderr]      |
[INFO] [stderr] 7425 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:7437:43
[INFO] [stderr]      |
[INFO] [stderr] 7437 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:7454:12
[INFO] [stderr]      |
[INFO] [stderr] 7454 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:14778:12
[INFO] [stderr]       |
[INFO] [stderr] 14778 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:14790:43
[INFO] [stderr]       |
[INFO] [stderr] 14790 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:14807:12
[INFO] [stderr]       |
[INFO] [stderr] 14807 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:7704:12
[INFO] [stderr]      |
[INFO] [stderr] 7704 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:7716:43
[INFO] [stderr]      |
[INFO] [stderr] 7716 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:7733:12
[INFO] [stderr]      |
[INFO] [stderr] 7733 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15064:12
[INFO] [stderr]       |
[INFO] [stderr] 15064 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15090:12
[INFO] [stderr]       |
[INFO] [stderr] 15090 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8000:12
[INFO] [stderr]      |
[INFO] [stderr] 8000 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:8012:43
[INFO] [stderr]      |
[INFO] [stderr] 8012 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8029:12
[INFO] [stderr]      |
[INFO] [stderr] 8029 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15367:12
[INFO] [stderr]       |
[INFO] [stderr] 15367 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:15379:43
[INFO] [stderr]       |
[INFO] [stderr] 15379 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15396:12
[INFO] [stderr]       |
[INFO] [stderr] 15396 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8298:12
[INFO] [stderr]      |
[INFO] [stderr] 8298 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8324:12
[INFO] [stderr]      |
[INFO] [stderr] 8324 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15651:12
[INFO] [stderr]       |
[INFO] [stderr] 15651 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:15663:43
[INFO] [stderr]       |
[INFO] [stderr] 15663 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15680:12
[INFO] [stderr]       |
[INFO] [stderr] 15680 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8611:12
[INFO] [stderr]      |
[INFO] [stderr] 8611 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:8623:43
[INFO] [stderr]      |
[INFO] [stderr] 8623 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8640:12
[INFO] [stderr]      |
[INFO] [stderr] 8640 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15937:12
[INFO] [stderr]       |
[INFO] [stderr] 15937 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8910:12
[INFO] [stderr]      |
[INFO] [stderr] 8910 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15963:12
[INFO] [stderr]       |
[INFO] [stderr] 15963 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:8936:12
[INFO] [stderr]      |
[INFO] [stderr] 8936 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:16241:12
[INFO] [stderr]       |
[INFO] [stderr] 16241 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:16267:12
[INFO] [stderr]       |
[INFO] [stderr] 16267 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:9204:12
[INFO] [stderr]      |
[INFO] [stderr] 9204 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:9216:43
[INFO] [stderr]      |
[INFO] [stderr] 9216 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:9233:12
[INFO] [stderr]      |
[INFO] [stderr] 9233 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:16546:12
[INFO] [stderr]       |
[INFO] [stderr] 16546 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:16558:43
[INFO] [stderr]       |
[INFO] [stderr] 16558 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:16575:12
[INFO] [stderr]       |
[INFO] [stderr] 16575 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:9495:12
[INFO] [stderr]      |
[INFO] [stderr] 9495 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:9507:43
[INFO] [stderr]      |
[INFO] [stderr] 9507 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:9524:12
[INFO] [stderr]      |
[INFO] [stderr] 9524 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:16832:12
[INFO] [stderr]       |
[INFO] [stderr] 16832 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:9784:12
[INFO] [stderr]      |
[INFO] [stderr] 9784 |         if self._scopes.len() == 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:16844:43
[INFO] [stderr]       |
[INFO] [stderr] 16844 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]     --> src/lib.rs:9796:43
[INFO] [stderr]      |
[INFO] [stderr] 9796 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]      |                                           ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: Consider using a byte literal instead:
[INFO] [stderr]              b'+'
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:16861:12
[INFO] [stderr]       |
[INFO] [stderr] 16861 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]     --> src/lib.rs:9813:12
[INFO] [stderr]      |
[INFO] [stderr] 9813 |         if params.len() > 0 {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10062:12
[INFO] [stderr]       |
[INFO] [stderr] 10062 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17110:12
[INFO] [stderr]       |
[INFO] [stderr] 17110 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10088:12
[INFO] [stderr]       |
[INFO] [stderr] 10088 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:17122:43
[INFO] [stderr]       |
[INFO] [stderr] 17122 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17139:12
[INFO] [stderr]       |
[INFO] [stderr] 17139 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17393:12
[INFO] [stderr]       |
[INFO] [stderr] 17393 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10351:12
[INFO] [stderr]       |
[INFO] [stderr] 10351 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:17405:43
[INFO] [stderr]       |
[INFO] [stderr] 17405 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:10363:43
[INFO] [stderr]       |
[INFO] [stderr] 10363 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17422:12
[INFO] [stderr]       |
[INFO] [stderr] 17422 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10380:12
[INFO] [stderr]       |
[INFO] [stderr] 10380 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10635:12
[INFO] [stderr]       |
[INFO] [stderr] 10635 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:10647:43
[INFO] [stderr]       |
[INFO] [stderr] 10647 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17678:12
[INFO] [stderr]       |
[INFO] [stderr] 17678 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10664:12
[INFO] [stderr]       |
[INFO] [stderr] 10664 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17704:12
[INFO] [stderr]       |
[INFO] [stderr] 17704 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10919:12
[INFO] [stderr]       |
[INFO] [stderr] 10919 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:10931:43
[INFO] [stderr]       |
[INFO] [stderr] 10931 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:10948:12
[INFO] [stderr]       |
[INFO] [stderr] 10948 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17970:12
[INFO] [stderr]       |
[INFO] [stderr] 17970 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17996:12
[INFO] [stderr]       |
[INFO] [stderr] 17996 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:11207:12
[INFO] [stderr]       |
[INFO] [stderr] 11207 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:11233:12
[INFO] [stderr]       |
[INFO] [stderr] 11233 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:18280:12
[INFO] [stderr]       |
[INFO] [stderr] 18280 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:18306:12
[INFO] [stderr]       |
[INFO] [stderr] 18306 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:11524:12
[INFO] [stderr]       |
[INFO] [stderr] 11524 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:11550:12
[INFO] [stderr]       |
[INFO] [stderr] 11550 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:18599:12
[INFO] [stderr]       |
[INFO] [stderr] 18599 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:18625:12
[INFO] [stderr]       |
[INFO] [stderr] 18625 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:11813:12
[INFO] [stderr]       |
[INFO] [stderr] 11813 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:11825:43
[INFO] [stderr]       |
[INFO] [stderr] 11825 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:11842:12
[INFO] [stderr]       |
[INFO] [stderr] 11842 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:18904:12
[INFO] [stderr]       |
[INFO] [stderr] 18904 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:18916:43
[INFO] [stderr]       |
[INFO] [stderr] 18916 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:18933:12
[INFO] [stderr]       |
[INFO] [stderr] 18933 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:12096:12
[INFO] [stderr]       |
[INFO] [stderr] 12096 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:12108:43
[INFO] [stderr]       |
[INFO] [stderr] 12108 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:12125:12
[INFO] [stderr]       |
[INFO] [stderr] 12125 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:19191:12
[INFO] [stderr]       |
[INFO] [stderr] 19191 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:19217:12
[INFO] [stderr]       |
[INFO] [stderr] 19217 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:12382:12
[INFO] [stderr]       |
[INFO] [stderr] 12382 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:12408:12
[INFO] [stderr]       |
[INFO] [stderr] 12408 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:19497:12
[INFO] [stderr]       |
[INFO] [stderr] 19497 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:19523:12
[INFO] [stderr]       |
[INFO] [stderr] 19523 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:12690:12
[INFO] [stderr]       |
[INFO] [stderr] 12690 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:12716:12
[INFO] [stderr]       |
[INFO] [stderr] 12716 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:19804:12
[INFO] [stderr]       |
[INFO] [stderr] 19804 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:19816:43
[INFO] [stderr]       |
[INFO] [stderr] 19816 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:19833:12
[INFO] [stderr]       |
[INFO] [stderr] 19833 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:12995:12
[INFO] [stderr]       |
[INFO] [stderr] 12995 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:13021:12
[INFO] [stderr]       |
[INFO] [stderr] 13021 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:20090:12
[INFO] [stderr]       |
[INFO] [stderr] 20090 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:20116:12
[INFO] [stderr]       |
[INFO] [stderr] 20116 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:13279:12
[INFO] [stderr]       |
[INFO] [stderr] 13279 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:13305:12
[INFO] [stderr]       |
[INFO] [stderr] 13305 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:20398:12
[INFO] [stderr]       |
[INFO] [stderr] 20398 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:20424:12
[INFO] [stderr]       |
[INFO] [stderr] 20424 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:13600:12
[INFO] [stderr]       |
[INFO] [stderr] 13600 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:13626:12
[INFO] [stderr]       |
[INFO] [stderr] 13626 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:20703:12
[INFO] [stderr]       |
[INFO] [stderr] 20703 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:20715:43
[INFO] [stderr]       |
[INFO] [stderr] 20715 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:20732:12
[INFO] [stderr]       |
[INFO] [stderr] 20732 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:13916:12
[INFO] [stderr]       |
[INFO] [stderr] 13916 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:13928:43
[INFO] [stderr]       |
[INFO] [stderr] 13928 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:20985:12
[INFO] [stderr]       |
[INFO] [stderr] 20985 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:13945:12
[INFO] [stderr]       |
[INFO] [stderr] 13945 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:21011:12
[INFO] [stderr]       |
[INFO] [stderr] 21011 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:21263:12
[INFO] [stderr]       |
[INFO] [stderr] 21263 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:14211:12
[INFO] [stderr]       |
[INFO] [stderr] 14211 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:21275:43
[INFO] [stderr]       |
[INFO] [stderr] 21275 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:14223:43
[INFO] [stderr]       |
[INFO] [stderr] 14223 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:21292:12
[INFO] [stderr]       |
[INFO] [stderr] 21292 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:14240:12
[INFO] [stderr]       |
[INFO] [stderr] 14240 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:21554:12
[INFO] [stderr]       |
[INFO] [stderr] 21554 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:21566:43
[INFO] [stderr]       |
[INFO] [stderr] 21566 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:21583:12
[INFO] [stderr]       |
[INFO] [stderr] 21583 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:14494:12
[INFO] [stderr]       |
[INFO] [stderr] 14494 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:14506:43
[INFO] [stderr]       |
[INFO] [stderr] 14506 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:14523:12
[INFO] [stderr]       |
[INFO] [stderr] 14523 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:14778:12
[INFO] [stderr]       |
[INFO] [stderr] 14778 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:14790:43
[INFO] [stderr]       |
[INFO] [stderr] 14790 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:14807:12
[INFO] [stderr]       |
[INFO] [stderr] 14807 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15064:12
[INFO] [stderr]       |
[INFO] [stderr] 15064 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15090:12
[INFO] [stderr]       |
[INFO] [stderr] 15090 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15367:12
[INFO] [stderr]       |
[INFO] [stderr] 15367 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:15379:43
[INFO] [stderr]       |
[INFO] [stderr] 15379 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15396:12
[INFO] [stderr]       |
[INFO] [stderr] 15396 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15651:12
[INFO] [stderr]       |
[INFO] [stderr] 15651 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:15663:43
[INFO] [stderr]       |
[INFO] [stderr] 15663 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15680:12
[INFO] [stderr]       |
[INFO] [stderr] 15680 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15937:12
[INFO] [stderr]       |
[INFO] [stderr] 15937 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:15963:12
[INFO] [stderr]       |
[INFO] [stderr] 15963 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:16241:12
[INFO] [stderr]       |
[INFO] [stderr] 16241 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:16267:12
[INFO] [stderr]       |
[INFO] [stderr] 16267 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:16546:12
[INFO] [stderr]       |
[INFO] [stderr] 16546 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:16558:43
[INFO] [stderr]       |
[INFO] [stderr] 16558 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:16575:12
[INFO] [stderr]       |
[INFO] [stderr] 16575 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:16832:12
[INFO] [stderr]       |
[INFO] [stderr] 16832 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:16844:43
[INFO] [stderr]       |
[INFO] [stderr] 16844 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:16861:12
[INFO] [stderr]       |
[INFO] [stderr] 16861 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17110:12
[INFO] [stderr]       |
[INFO] [stderr] 17110 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:17122:43
[INFO] [stderr]       |
[INFO] [stderr] 17122 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17139:12
[INFO] [stderr]       |
[INFO] [stderr] 17139 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17393:12
[INFO] [stderr]       |
[INFO] [stderr] 17393 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:17405:43
[INFO] [stderr]       |
[INFO] [stderr] 17405 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17422:12
[INFO] [stderr]       |
[INFO] [stderr] 17422 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17678:12
[INFO] [stderr]       |
[INFO] [stderr] 17678 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17704:12
[INFO] [stderr]       |
[INFO] [stderr] 17704 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17970:12
[INFO] [stderr]       |
[INFO] [stderr] 17970 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:17996:12
[INFO] [stderr]       |
[INFO] [stderr] 17996 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:18280:12
[INFO] [stderr]       |
[INFO] [stderr] 18280 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:18306:12
[INFO] [stderr]       |
[INFO] [stderr] 18306 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:18599:12
[INFO] [stderr]       |
[INFO] [stderr] 18599 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:18625:12
[INFO] [stderr]       |
[INFO] [stderr] 18625 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:18904:12
[INFO] [stderr]       |
[INFO] [stderr] 18904 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:18916:43
[INFO] [stderr]       |
[INFO] [stderr] 18916 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:18933:12
[INFO] [stderr]       |
[INFO] [stderr] 18933 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:19191:12
[INFO] [stderr]       |
[INFO] [stderr] 19191 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:19217:12
[INFO] [stderr]       |
[INFO] [stderr] 19217 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:19497:12
[INFO] [stderr]       |
[INFO] [stderr] 19497 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:19523:12
[INFO] [stderr]       |
[INFO] [stderr] 19523 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:19804:12
[INFO] [stderr]       |
[INFO] [stderr] 19804 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:19816:43
[INFO] [stderr]       |
[INFO] [stderr] 19816 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:19833:12
[INFO] [stderr]       |
[INFO] [stderr] 19833 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:20090:12
[INFO] [stderr]       |
[INFO] [stderr] 20090 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:20116:12
[INFO] [stderr]       |
[INFO] [stderr] 20116 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:20398:12
[INFO] [stderr]       |
[INFO] [stderr] 20398 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:20424:12
[INFO] [stderr]       |
[INFO] [stderr] 20424 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:20703:12
[INFO] [stderr]       |
[INFO] [stderr] 20703 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:20715:43
[INFO] [stderr]       |
[INFO] [stderr] 20715 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:20732:12
[INFO] [stderr]       |
[INFO] [stderr] 20732 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:20985:12
[INFO] [stderr]       |
[INFO] [stderr] 20985 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:21011:12
[INFO] [stderr]       |
[INFO] [stderr] 21011 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:21263:12
[INFO] [stderr]       |
[INFO] [stderr] 21263 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:21275:43
[INFO] [stderr]       |
[INFO] [stderr] 21275 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:21292:12
[INFO] [stderr]       |
[INFO] [stderr] 21292 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:21554:12
[INFO] [stderr]       |
[INFO] [stderr] 21554 |         if self._scopes.len() == 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self._scopes.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]      --> src/lib.rs:21566:43
[INFO] [stderr]       |
[INFO] [stderr] 21566 |             if find_this.as_bytes()[1] == '+' as u8 {
[INFO] [stderr]       |                                           ^^^^^^^^^
[INFO] [stderr]       |
[INFO] [stderr]       = help: Consider using a byte literal instead:
[INFO] [stderr]               b'+'
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]      --> src/lib.rs:21583:12
[INFO] [stderr]       |
[INFO] [stderr] 21583 |         if params.len() > 0 {
[INFO] [stderr]       |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!params.is_empty()`
[INFO] [stderr]       |
[INFO] [stderr]       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.72s
[INFO] running `"docker" "inspect" "906fecc4e72d8bcf86272feed23b8fabba8ca986e270adecfcda987424731390"`
[INFO] running `"docker" "rm" "-f" "906fecc4e72d8bcf86272feed23b8fabba8ca986e270adecfcda987424731390"`
[INFO] [stdout] 906fecc4e72d8bcf86272feed23b8fabba8ca986e270adecfcda987424731390