warning: unneeded `return` statement
   --> src/host/jack/mod.rs:177:13
    |
177 |             return Err(format!("Failed to open client because of error: {:?}", e));
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
help: remove `return`
    |
177 -             return Err(format!("Failed to open client because of error: {:?}", e));
177 +             Err(format!("Failed to open client because of error: {:?}", e))
    |

warning: unneeded `return` statement
   --> src/host/jack/mod.rs:174:13
    |
174 |             return Ok(client);
    |             ^^^^^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
    = note: `#[warn(clippy::needless_return)]` on by default
help: remove `return`
    |
174 -             return Ok(client);
174 +             Ok(client)
    |

warning: returning the result of a `let` binding from a block
   --> src/host/jack/stream.rs:278:5
    |
277 |     let data = unsafe { Data::from_parts(data, len, JACK_SAMPLE_FORMAT) };
    |     ---------------------------------------------------------------------- unnecessary `let` binding
278 |     data
    |     ^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
    = note: `#[warn(clippy::let_and_return)]` on by default
help: return the expression directly
    |
277 ~     
278 ~     unsafe { Data::from_parts(data, len, JACK_SAMPLE_FORMAT) }
    |

warning: writing `&mut Vec` instead of `&mut [_]` involves a new object where a slice will do
   --> src/host/jack/stream.rs:273:43
    |
273 | fn temp_buffer_to_data(temp_input_buffer: &mut Vec<f32>, total_buffer_size: usize) -> Data {
    |                                           ^^^^^^^^^^^^^ help: change this to: `&mut [f32]`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
    = note: `#[warn(clippy::ptr_arg)]` on by default

warning: this function has too many arguments (8/7)
   --> src/host/jack/stream.rs:241:5
    |
241 | /     fn new(
242 | |         out_ports: Vec<jack::Port<jack::AudioOut>>,
243 | |         in_ports: Vec<jack::Port<jack::AudioIn>>,
244 | |         sample_rate: SampleRate,
...   |
251 | |         error_callback_ptr: ErrorCallbackPtr,
252 | |     ) -> Self {
    | |_____________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
    = note: `#[warn(clippy::too_many_arguments)]` on by default

warning: very complex type used. Consider factoring parts into `type` definitions
   --> src/host/jack/stream.rs:247:31
    |
247 |           output_data_callback: Option<
    |  _______________________________^
248 | |             Box<dyn FnMut(&mut Data, &OutputCallbackInfo) + Send + 'static>,
249 | |         >,
    | |_________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity

warning: very complex type used. Consider factoring parts into `type` definitions
   --> src/host/jack/stream.rs:246:30
    |
246 |         input_data_callback: Option<Box<dyn FnMut(&Data, &InputCallbackInfo) + Send + 'static>>,
    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity

warning: very complex type used. Consider factoring parts into `type` definitions
   --> src/host/jack/stream.rs:229:27
    |
229 |     output_data_callback: Option<Box<dyn FnMut(&mut Data, &OutputCallbackInfo) + Send + 'static>>,
    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity

warning: very complex type used. Consider factoring parts into `type` definitions
   --> src/host/jack/stream.rs:228:26
    |
228 |     input_data_callback: Option<Box<dyn FnMut(&Data, &InputCallbackInfo) + Send + 'static>>,
    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
    = note: `#[warn(clippy::type_complexity)]` on by default

warning: use of `default` to create a unit struct
   --> src/host/jack/stream.rs:105:86
    |
105 |             let port_try = client.register_port(&format!("out_{}", i), jack::AudioOut::default());
    |                                                                                      ^^^^^^^^^^^ help: remove this call to `default`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#default_constructed_unit_structs

warning: use of `default` to create a unit struct
  --> src/host/jack/stream.rs:40:84
   |
40 |             let port_try = client.register_port(&format!("in_{}", i), jack::AudioIn::default());
   |                                                                                    ^^^^^^^^^^^ help: remove this call to `default`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#default_constructed_unit_structs
   = note: `#[warn(clippy::default_constructed_unit_structs)]` on by default

warning: casting to the same type is unnecessary (`i64` -> `i64`)
   --> src/host/alsa/mod.rs:899:40
    |
899 |     ts.tv_sec as i64 * 1_000_000_000 + ts.tv_nsec as i64
    |                                        ^^^^^^^^^^^^^^^^^ help: try: `ts.tv_nsec`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast

warning: casting to the same type is unnecessary (`i64` -> `i64`)
   --> src/host/alsa/mod.rs:899:5
    |
899 |     ts.tv_sec as i64 * 1_000_000_000 + ts.tv_nsec as i64
    |     ^^^^^^^^^^^^^^^^ help: try: `ts.tv_sec`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast

warning: casting to the same type is unnecessary (`u32` -> `u32`)
   --> src/host/alsa/mod.rs:437:53
    |
437 |                         max_sample_rate: SampleRate(max_rate as u32),
    |                                                     ^^^^^^^^^^^^^^^ help: try: `max_rate`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast

warning: casting to the same type is unnecessary (`u32` -> `u32`)
   --> src/host/alsa/mod.rs:436:53
    |
436 |                         min_sample_rate: SampleRate(min_rate as u32),
    |                                                     ^^^^^^^^^^^^^^^ help: try: `min_rate`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
    = note: `#[warn(clippy::unnecessary_cast)]` on by default