warning: the following explicit lifetimes could be elided: 'a
   --> src/sl/transpile.rs:266:6
    |
266 | impl<'a> FragmentVisitor<'a, Sl> for CollectOutputs {
    |      ^^                  ^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
    |
266 - impl<'a> FragmentVisitor<'a, Sl> for CollectOutputs {
266 + impl FragmentVisitor<'_, Sl> for CollectOutputs {
    |

warning: the following explicit lifetimes could be elided: 'a
   --> src/sl/transpile.rs:251:6
    |
251 | impl<'a> VertexVisitor<'a, Sl> for CollectVertexBlocks {
    |      ^^                ^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
    |
251 - impl<'a> VertexVisitor<'a, Sl> for CollectVertexBlocks {
251 + impl VertexVisitor<'_, Sl> for CollectVertexBlocks {
    |

warning: the following explicit lifetimes could be elided: 'a
   --> src/sl/transpile.rs:210:6
    |
210 | impl<'a> UniformVisitor<'a, Sl> for CollectUniforms {
    |      ^^                 ^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
    |
210 - impl<'a> UniformVisitor<'a, Sl> for CollectUniforms {
210 + impl UniformVisitor<'_, Sl> for CollectUniforms {
    |

warning: the following explicit lifetimes could be elided: 'a
  --> src/sl/codegen.rs:32:6
   |
32 | impl<'a> WriteFuncContext<'a> {
   |      ^^                   ^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
   |
32 - impl<'a> WriteFuncContext<'a> {
32 + impl WriteFuncContext<'_> {
   |

warning: this seems like a manual implementation of the non-exhaustive pattern
  --> src/sl/sig.rs:27:1
   |
27 | / pub struct VsInput<V> {
28 | |     pub vertex: V,
29 | |     pub vertex_id: U32,
30 | |     pub instance_id: U32,
31 | |     pub(crate) _private: (),
32 | | }
   | |_^
   |
help: remove this field
  --> src/sl/sig.rs:31:5
   |
31 |     pub(crate) _private: (),
   |     ^^^^^^^^^^^^^^^^^^^^^^^
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_non_exhaustive
   = note: `#[warn(clippy::manual_non_exhaustive)]` on by default
help: use the `#[non_exhaustive]` attribute instead
   |
27 + #[non_exhaustive]
28 | pub struct VsInput<V> {
   |

warning: the following explicit lifetimes could be elided: 'a
   --> src/gl/raw/image.rs:230:6
    |
230 | impl<'a> Image<'a> {
    |      ^^        ^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
    |
230 - impl<'a> Image<'a> {
230 + impl Image<'_> {
    |

warning: the following explicit lifetimes could be elided: 'a
   --> src/gl/framebuffer.rs:129:10
    |
129 |     impl<'a> FragmentVisitor<'a, Gl> for Visitor {
    |          ^^                  ^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
    |
129 -     impl<'a> FragmentVisitor<'a, Gl> for Visitor {
129 +     impl FragmentVisitor<'_, Gl> for Visitor {
    |

warning: the following explicit lifetimes could be elided: 'a
  --> src/gl/context.rs:95:6
   |
95 | impl<'a, VSig, VFunc, FSig, FFunc> CacheDrawBuilder<'a, VSig, VFunc, FSig, FFunc>
   |      ^^                                             ^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
   = note: `#[warn(clippy::needless_lifetimes)]` on by default
help: elide the lifetimes
   |
95 - impl<'a, VSig, VFunc, FSig, FFunc> CacheDrawBuilder<'a, VSig, VFunc, FSig, FFunc>
95 + impl<VSig, VFunc, FSig, FFunc> CacheDrawBuilder<'_, VSig, VFunc, FSig, FFunc>
   |

warning: empty line after outer attribute
  --> src/interface/block.rs:36:5
   |
36 | /     /// TODO: Bool in `Block`. Need to special case vertex attributes.
37 | |     //type Bool: Block<Self> + ToSl<Output = sl::Bool>;
38 | |
   | |_
...
43 |       type Vec2: Block<Self> + ToSl<Output = sl::Vec2> + Default;
   |       ---------------------------------------------------------- the attribute applies to this associated type
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#empty_line_after_outer_attr
   = note: `#[warn(clippy::empty_line_after_outer_attr)]` on by default
   = help: if the empty line is unintentional remove it

warning: function `call_func_def` is never used
   --> src/sl/primitives.rs:164:8
    |
164 | pub fn call_func_def<R: Value>(def: FuncDef, args: Vec<Rc<Expr>>) -> R {
    |        ^^^^^^^^^^^^^

warning: method `is_empty` is never used
  --> src/gl/raw/buffer.rs:81:12
   |
40 | impl Buffer {
   | ----------- method in this implementation
...
81 |     pub fn is_empty(&self) -> bool {
   |            ^^^^^^^^
   |
   = note: `#[warn(dead_code)]` on by default