warning: the borrowed expression implements the required traits
  --> cglue/src/tests/simple/trait_groups.rs:28:23
   |
28 |     let _ = into_test(&a);
   |                       ^^ help: change this to: `a`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
   = note: `#[warn(clippy::needless_borrows_for_generic_args)]` on by default

warning: unsafe function's docs miss `# Safety` section
  --> cglue/src/tests/simple/trait_defs.rs:33:5
   |
33 |     unsafe fn tf_1(&self);
   |     ^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_safety_doc

warning: cloning a `Waker` only to wake it
   --> cglue/src/task/mod.rs:222:17
    |
222 |                 cx.waker().clone().wake();
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `cx.waker().wake_by_ref()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#waker_clone_wake
    = note: `#[warn(clippy::waker_clone_wake)]` on by default

warning: this expression borrows a value the compiler would automatically borrow
   --> cglue/src/task/mod.rs:196:23
    |
196 |             (unsafe { &mut self.get_unchecked_mut().f })(cx)
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `self.get_unchecked_mut().f`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow

warning: transmute used without annotations
   --> cglue/src/task/mod.rs:150:44
    |
150 |         unsafe { Self::from_raw(core::mem::transmute(waker)) }
    |                                            ^^^^^^^^^ help: consider adding missing annotations: `transmute::<&std::task::Waker, &std::task::RawWaker>`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_transmute_annotations

warning: unsafe function's docs miss `# Safety` section
   --> cglue/src/task/mod.rs:113:5
    |
113 |     pub unsafe fn from_raw(raw: &'a RawWaker) -> Self {
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_safety_doc
    = note: `#[warn(clippy::missing_safety_doc)]` on by default

warning: transmute used without annotations
  --> cglue/src/task/mod.rs:83:28
   |
83 |     let waker = core::mem::transmute(waker.clone());
   |                            ^^^^^^^^^ help: consider adding missing annotations: `transmute::<std::task::Waker, task::OpaqueRawWaker>`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_transmute_annotations

warning: this expression creates a reference which is immediately dereferenced by the compiler
   --> cglue/src/trait_group.rs:153:9
    |
153 |         &self.vtbl
    |         ^^^^^^^^^^ help: change this to: `self.vtbl`
    |
    = 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: use of `default` to create a unit struct
   --> cglue/src/slice.rs:244:35
    |
244 |             _lifetime: PhantomData::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
   --> cglue/src/slice.rs:234:35
    |
234 |             _lifetime: PhantomData::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: transmute used without annotations
  --> cglue/src/iter.rs:76:39
   |
76 |         let func = unsafe { std::mem::transmute::<_, _>(func) };
   |                                       ^^^^^^^^^^^^^^^^^ help: consider adding missing annotations: `transmute::<extern "C" fn(&mut I, &mut std::mem::MaybeUninit<T>) -> i32, for<'a, 'b> extern "C" fn(&'a mut (), &'b mut std::mem::MaybeUninit<T>) -> i32>`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_transmute_annotations

warning: transmute used without annotations
  --> cglue/src/callback.rs:49:33
   |
49 |                 func: std::mem::transmute(self.func),
   |                                 ^^^^^^^^^ help: consider adding missing annotations: `transmute::<for<'a> extern "C" fn(&'a mut T, F) -> bool, for<'a> extern "C" fn(&'a mut (), F) -> bool>`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_transmute_annotations
   = note: `#[warn(clippy::missing_transmute_annotations)]` on by default

warning: transmute used without annotations
   --> cglue/src/task/mod.rs:150:44
    |
150 |         unsafe { Self::from_raw(core::mem::transmute(waker)) }
    |                                            ^^^^^^^^^ help: consider adding missing annotations: `transmute::<&std::task::Waker, &std::task::RawWaker>`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_transmute_annotations

warning: unsafe function's docs miss `# Safety` section
   --> cglue/src/task/mod.rs:113:5
    |
113 |     pub unsafe fn from_raw(raw: &'a RawWaker) -> Self {
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_safety_doc
    = note: `#[warn(clippy::missing_safety_doc)]` on by default

warning: transmute used without annotations
  --> cglue/src/task/mod.rs:83:28
   |
83 |     let waker = core::mem::transmute(waker.clone());
   |                            ^^^^^^^^^ help: consider adding missing annotations: `transmute::<std::task::Waker, task::OpaqueRawWaker>`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_transmute_annotations

warning: this expression creates a reference which is immediately dereferenced by the compiler
   --> cglue/src/trait_group.rs:153:9
    |
153 |         &self.vtbl
    |         ^^^^^^^^^^ help: change this to: `self.vtbl`
    |
    = 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: use of `default` to create a unit struct
   --> cglue/src/slice.rs:244:35
    |
244 |             _lifetime: PhantomData::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
   --> cglue/src/slice.rs:234:35
    |
234 |             _lifetime: PhantomData::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: transmute used without annotations
  --> cglue/src/iter.rs:76:39
   |
76 |         let func = unsafe { std::mem::transmute::<_, _>(func) };
   |                                       ^^^^^^^^^^^^^^^^^ help: consider adding missing annotations: `transmute::<extern "C" fn(&mut I, &mut std::mem::MaybeUninit<T>) -> i32, for<'a, 'b> extern "C" fn(&'a mut (), &'b mut std::mem::MaybeUninit<T>) -> i32>`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_transmute_annotations

warning: transmute used without annotations
  --> cglue/src/callback.rs:49:33
   |
49 |                 func: std::mem::transmute(self.func),
   |                                 ^^^^^^^^^ help: consider adding missing annotations: `transmute::<for<'a> extern "C" fn(&'a mut T, F) -> bool, for<'a> extern "C" fn(&'a mut (), F) -> bool>`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#missing_transmute_annotations
   = note: `#[warn(clippy::missing_transmute_annotations)]` on by default

warning: this `as_str` is redundant and can be removed as the method immediately following exists on `String` too
   --> cglue-bindgen/src/main.rs:155:31
    |
155 |         file.write_all(output.as_str().as_bytes())?;
    |                               ^^^^^^^^^^^^^^^^^ help: try: `as_bytes`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_as_str
    = note: `#[warn(clippy::redundant_as_str)]` on by default

warning: the borrowed expression implements the required traits
   --> cglue-bindgen/src/main.rs:127:18
    |
127 |         cmd.args(&["run", "nightly", "cbindgen"]);
    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `["run", "nightly", "cbindgen"]`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
    = note: `#[warn(clippy::needless_borrows_for_generic_args)]` on by default

warning: iterating on a map's values
   --> cglue-bindgen/src/types.rs:104:9
    |
104 | /         Self::get_map()
105 | |             .into_iter()
106 | |             .map(|(_, v)| (v.ty_prefix, v))
    | |___________________________________________^ help: try: `Self::get_map().into_values().map(|v| (v.ty_prefix, v))`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_kv_map

warning: iterating on a map's values
  --> cglue-bindgen/src/types.rs:51:9
   |
51 | /         Self::get_map()
52 | |             .into_iter()
53 | |             .map(|(_, v)| (v.ty_prefix, v))
   | |___________________________________________^ help: try: `Self::get_map().into_values().map(|v| (v.ty_prefix, v))`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_kv_map
   = note: `#[warn(clippy::iter_kv_map)]` on by default

warning: replacing an `Option` with `None`
   --> cglue-gen/src/trait_groups.rs:208:37
    |
208 |                 let leading_colon = std::mem::replace(&mut vtbl.path.leading_colon, None);
    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider `Option::take()` instead: `vtbl.path.leading_colon.take()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mem_replace_option_with_none
    = note: `#[warn(clippy::mem_replace_option_with_none)]` on by default