[INFO] crate google-datastore1 1.0.8+20181002 is already in cache
[INFO] extracting crate google-datastore1 1.0.8+20181002 into work/ex/clippy-test-run/sources/stable/reg/google-datastore1/1.0.8+20181002
[INFO] extracting crate google-datastore1 1.0.8+20181002 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/google-datastore1/1.0.8+20181002
[INFO] validating manifest of google-datastore1-1.0.8+20181002 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-datastore1-1.0.8+20181002 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-datastore1-1.0.8+20181002
[INFO] finished frobbing google-datastore1-1.0.8+20181002
[INFO] frobbed toml for google-datastore1-1.0.8+20181002 written to work/ex/clippy-test-run/sources/stable/reg/google-datastore1/1.0.8+20181002/Cargo.toml
[INFO] started frobbing google-datastore1-1.0.8+20181002
[INFO] finished frobbing google-datastore1-1.0.8+20181002
[INFO] frobbed toml for google-datastore1-1.0.8+20181002 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/google-datastore1/1.0.8+20181002/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-datastore1-1.0.8+20181002 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/google-datastore1/1.0.8+20181002:/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] 6599b5d499601a81ed734867a9db9eefd0c05c6b70466950f051b122a47c326d
[INFO] running `"docker" "start" "-a" "6599b5d499601a81ed734867a9db9eefd0c05c6b70466950f051b122a47c326d"`
[INFO] [stderr]     Checking google-datastore1 v1.0.8+20181002 (/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: 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:2120:12
[INFO] [stderr]      |
[INFO] [stderr] 2120 |         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:2132:43
[INFO] [stderr]      |
[INFO] [stderr] 2132 |             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:2149:12
[INFO] [stderr]      |
[INFO] [stderr] 2149 |         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:2405:12
[INFO] [stderr]      |
[INFO] [stderr] 2405 |         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:2431:12
[INFO] [stderr]      |
[INFO] [stderr] 2431 |         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:2683:12
[INFO] [stderr]      |
[INFO] [stderr] 2683 |         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:2709:12
[INFO] [stderr]      |
[INFO] [stderr] 2709 |         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:2962:12
[INFO] [stderr]      |
[INFO] [stderr] 2962 |         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:2988:12
[INFO] [stderr]      |
[INFO] [stderr] 2988 |         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:3240:12
[INFO] [stderr]      |
[INFO] [stderr] 3240 |         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:3266:12
[INFO] [stderr]      |
[INFO] [stderr] 3266 |         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:3519:12
[INFO] [stderr]      |
[INFO] [stderr] 3519 |         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:3545:12
[INFO] [stderr]      |
[INFO] [stderr] 3545 |         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:3798:12
[INFO] [stderr]      |
[INFO] [stderr] 3798 |         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:3824:12
[INFO] [stderr]      |
[INFO] [stderr] 3824 |         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:4073:12
[INFO] [stderr]      |
[INFO] [stderr] 4073 |         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:4085:43
[INFO] [stderr]      |
[INFO] [stderr] 4085 |             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:4102:12
[INFO] [stderr]      |
[INFO] [stderr] 4102 |         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:4326:12
[INFO] [stderr]      |
[INFO] [stderr] 4326 |         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:4338:43
[INFO] [stderr]      |
[INFO] [stderr] 4338 |             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:4355:12
[INFO] [stderr]      |
[INFO] [stderr] 4355 |         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:4586:12
[INFO] [stderr]      |
[INFO] [stderr] 4586 |         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:4598:43
[INFO] [stderr]      |
[INFO] [stderr] 4598 |             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:4615:12
[INFO] [stderr]      |
[INFO] [stderr] 4615 |         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:4838:12
[INFO] [stderr]      |
[INFO] [stderr] 4838 |         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:4864:12
[INFO] [stderr]      |
[INFO] [stderr] 4864 |         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:5112:12
[INFO] [stderr]      |
[INFO] [stderr] 5112 |         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:5138:12
[INFO] [stderr]      |
[INFO] [stderr] 5138 |         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:5391:12
[INFO] [stderr]      |
[INFO] [stderr] 5391 |         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:5417:12
[INFO] [stderr]      |
[INFO] [stderr] 5417 |         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:5669:12
[INFO] [stderr]      |
[INFO] [stderr] 5669 |         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:5695:12
[INFO] [stderr]      |
[INFO] [stderr] 5695 |         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:5947:12
[INFO] [stderr]      |
[INFO] [stderr] 5947 |         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:5973:12
[INFO] [stderr]      |
[INFO] [stderr] 5973 |         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:2120:12
[INFO] [stderr]      |
[INFO] [stderr] 2120 |         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:2132:43
[INFO] [stderr]      |
[INFO] [stderr] 2132 |             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:2149:12
[INFO] [stderr]      |
[INFO] [stderr] 2149 |         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:2405:12
[INFO] [stderr]      |
[INFO] [stderr] 2405 |         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:2431:12
[INFO] [stderr]      |
[INFO] [stderr] 2431 |         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:2683:12
[INFO] [stderr]      |
[INFO] [stderr] 2683 |         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:2709:12
[INFO] [stderr]      |
[INFO] [stderr] 2709 |         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:2962:12
[INFO] [stderr]      |
[INFO] [stderr] 2962 |         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:2988:12
[INFO] [stderr]      |
[INFO] [stderr] 2988 |         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:3240:12
[INFO] [stderr]      |
[INFO] [stderr] 3240 |         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:3266:12
[INFO] [stderr]      |
[INFO] [stderr] 3266 |         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:3519:12
[INFO] [stderr]      |
[INFO] [stderr] 3519 |         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:3545:12
[INFO] [stderr]      |
[INFO] [stderr] 3545 |         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:3798:12
[INFO] [stderr]      |
[INFO] [stderr] 3798 |         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:3824:12
[INFO] [stderr]      |
[INFO] [stderr] 3824 |         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:4073:12
[INFO] [stderr]      |
[INFO] [stderr] 4073 |         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:4085:43
[INFO] [stderr]      |
[INFO] [stderr] 4085 |             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:4102:12
[INFO] [stderr]      |
[INFO] [stderr] 4102 |         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:4326:12
[INFO] [stderr]      |
[INFO] [stderr] 4326 |         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:4338:43
[INFO] [stderr]      |
[INFO] [stderr] 4338 |             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:4355:12
[INFO] [stderr]      |
[INFO] [stderr] 4355 |         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:4586:12
[INFO] [stderr]      |
[INFO] [stderr] 4586 |         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:4598:43
[INFO] [stderr]      |
[INFO] [stderr] 4598 |             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:4615:12
[INFO] [stderr]      |
[INFO] [stderr] 4615 |         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:4838:12
[INFO] [stderr]      |
[INFO] [stderr] 4838 |         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:4864:12
[INFO] [stderr]      |
[INFO] [stderr] 4864 |         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:5112:12
[INFO] [stderr]      |
[INFO] [stderr] 5112 |         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:5138:12
[INFO] [stderr]      |
[INFO] [stderr] 5138 |         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:5391:12
[INFO] [stderr]      |
[INFO] [stderr] 5391 |         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:5417:12
[INFO] [stderr]      |
[INFO] [stderr] 5417 |         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:5669:12
[INFO] [stderr]      |
[INFO] [stderr] 5669 |         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:5695:12
[INFO] [stderr]      |
[INFO] [stderr] 5695 |         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:5947:12
[INFO] [stderr]      |
[INFO] [stderr] 5947 |         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:5973:12
[INFO] [stderr]      |
[INFO] [stderr] 5973 |         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 12.11s
[INFO] running `"docker" "inspect" "6599b5d499601a81ed734867a9db9eefd0c05c6b70466950f051b122a47c326d"`
[INFO] running `"docker" "rm" "-f" "6599b5d499601a81ed734867a9db9eefd0c05c6b70466950f051b122a47c326d"`
[INFO] [stdout] 6599b5d499601a81ed734867a9db9eefd0c05c6b70466950f051b122a47c326d