warning: redundant closure
  --> src/droidplug/mod.rs:14:36
   |
14 |     GLOBAL_ADAPTER.get_or_try_init(|| adapter::Adapter::new())?;
   |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `adapter::Adapter::new`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
   = note: `#[warn(clippy::redundant_closure)]` on by default

warning: using `clone` on type `JObject<'_>` which implements the `Copy` trait
   --> src/droidplug/jni/objects.rs:722:33
    |
722 |                 .is_same_object(services_obj.clone(), JObject::null())?
    |                                 ^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*services_obj`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy

warning: using `clone` on type `JObject<'_>` which implements the `Copy` trait
   --> src/droidplug/jni/objects.rs:705:33
    |
705 |                 .is_same_object(service_data_obj.clone(), JObject::null())?
    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*service_data_obj`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy

warning: using `clone` on type `JObject<'_>` which implements the `Copy` trait
   --> src/droidplug/jni/objects.rs:689:33
    |
689 |                 .is_same_object(manufacturer_specific_data_obj.clone(), JObject::null())?
    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*manufacturer_specific_data_obj`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy

warning: using `clone` on type `JObject<'_>` which implements the `Copy` trait
   --> src/droidplug/jni/objects.rs:649:29
    |
649 |             .is_same_object(record_obj.clone(), JObject::null())?
    |                             ^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*record_obj`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
    = note: `#[warn(clippy::clone_on_copy)]` on by default

warning: question mark operator is useless here
   --> src/droidplug/jni/objects.rs:475:9
    |
475 |         Ok(uuid_obj.as_uuid()?)
    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing question mark and `Ok()`: `uuid_obj.as_uuid()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_question_mark

warning: question mark operator is useless here
   --> src/droidplug/jni/objects.rs:398:9
    |
398 |         Ok(uuid_obj.as_uuid()?)
    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing question mark and `Ok()`: `uuid_obj.as_uuid()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_question_mark

warning: question mark operator is useless here
   --> src/droidplug/jni/objects.rs:337:9
    |
337 |         Ok(uuid_obj.as_uuid()?)
    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing question mark and `Ok()`: `uuid_obj.as_uuid()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_question_mark
    = note: `#[warn(clippy::needless_question_mark)]` on by default

warning: this expression borrows a value the compiler would automatically borrow
   --> src/droidplug/peripheral.rs:255:9
    |
255 |         (&guard.services).clone()
    |         ^^^^^^^^^^^^^^^^^ help: change this to: `guard.services`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow

warning: this expression borrows a value the compiler would automatically borrow
   --> src/droidplug/peripheral.rs:226:9
    |
226 |         (&guard.characteristics).clone()
    |         ^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `guard.characteristics`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow

warning: this expression borrows a value the compiler would automatically borrow
   --> src/droidplug/peripheral.rs:221:12
    |
221 |         Ok((&guard.properties).clone())
    |            ^^^^^^^^^^^^^^^^^^^ help: change this to: `guard.properties`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
    = note: `#[warn(clippy::needless_borrow)]` on by default

warning: function `notifications_stream_from_broadcast_receiver` is never used
  --> src/common/util.rs:14:8
   |
14 | pub fn notifications_stream_from_broadcast_receiver(
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

warning: method `peripheral_mut` is never used
  --> src/common/adapter_manager.rs:76:12
   |
42 | / impl<PeripheralType> AdapterManager<PeripheralType>
43 | | where
44 | |     PeripheralType: Peripheral + 'static,
   | |_________________________________________- method in this implementation
...
76 |       pub fn peripheral_mut(
   |              ^^^^^^^^^^^^^^
   |
   = note: `#[warn(dead_code)]` on by default

warning: variable does not need to be mutable
   --> src/droidplug/peripheral.rs:167:44
    |
167 |     pub(crate) fn report_properties(&self, mut properties: PeripheralProperties) {
    |                                            ----^^^^^^^^^^
    |                                            |
    |                                            help: remove this `mut`
    |
    = note: `#[warn(unused_mut)]` on by default