warning: `to_string` applied to a type that implements `Display` in `print!` args
  --> libcst/src/bin.rs:29:35
   |
29 |                 print!("{}", state.to_string());
   |                                   ^^^^^^^^^^^^ help: remove this
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
   = note: `#[warn(clippy::to_string_in_format_args)]` on by default

warning: use of `unwrap_or_else` to construct default value
  --> libcst/src/bin.rs:22:48
   |
22 |             let first_arg = env::args().nth(1).unwrap_or_else(|| "".to_string());
   |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_default()`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unwrap_or_default
   = note: `#[warn(clippy::unwrap_or_default)]` on by default

warning: manual implementation of `Option::map`
    --> libcst/src/parser/grammar.rs:3477:24
     |
3477 |       let lbracket_tok = if let Some(tp) = &type_parameters {
     |  ________________________^
3478 | |         Some(tp.lbracket.tok)
3479 | |     } else {
3480 | |         None
3481 | |     };
     | |_____^ help: try: `type_parameters.as_ref().map(|tp| tp.lbracket.tok)`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_map
     = note: `#[warn(clippy::manual_map)]` on by default

warning: unneeded `return` statement
    --> libcst/src/parser/grammar.rs:1907:9
     |
1907 | /         return NameOrAttribute::A(Box::new(Attribute {
1908 | |             attr: name,
1909 | |             dot,
1910 | |             lpar: Default::default(),
1911 | |             rpar: Default::default(),
1912 | |             value: Box::new(make_name_or_attr(first_tok, tail).into()),
1913 | |         }));
     | |___________^
     |
     = 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`
     |
1907 ~         NameOrAttribute::A(Box::new(Attribute {
1908 +             attr: name,
1909 +             dot,
1910 +             lpar: Default::default(),
1911 +             rpar: Default::default(),
1912 +             value: Box::new(make_name_or_attr(first_tok, tail).into()),
1913 ~         }))
     |

warning: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
    --> libcst/src/parser/grammar.rs:1898:25
     |
1898 |     a.into_iter().chain(b.into_iter()).collect()
     |                         ^^^^^^^^^^^^^ help: consider removing the `.into_iter()`: `b`
     |
note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
    --> /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/iter/traits/iterator.rs:479:12
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
     = note: `#[warn(clippy::useless_conversion)]` on by default

warning: the following explicit lifetimes could be elided: 'a
  --> libcst/src/parser/grammar.rs:47:6
   |
47 | impl<'a> Parse for TokVec<'a> {
   |      ^^                   ^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
   |
47 - impl<'a> Parse for TokVec<'a> {
47 + impl Parse for TokVec<'_> {
   |

warning: this lifetime isn't used in the impl
  --> libcst/src/parser/errors.rs:81:10
   |
81 |     impl<'a> PyErrArguments for Details {
   |          ^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
   = note: `#[warn(clippy::extra_unused_lifetimes)]` on by default

warning: the following explicit lifetimes could be elided: 'a
  --> libcst/src/parser/errors.rs:43:10
   |
43 |     impl<'a> From<ParserError<'a>> for PyErr {
   |          ^^                   ^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
   |
43 -     impl<'a> From<ParserError<'a>> for PyErr {
43 +     impl From<ParserError<'_>> for PyErr {
   |

warning: the following explicit lifetimes could be elided: 'a
   --> libcst/src/nodes/traits.rs:183:10
    |
183 |     impl<'a> TryIntoPy<PyObject> for &'a str {
    |          ^^                           ^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
    |
183 -     impl<'a> TryIntoPy<PyObject> for &'a str {
183 +     impl TryIntoPy<PyObject> for &str {
    |

warning: `?Sized` bound is ignored because of a `Sized` requirement
   --> libcst/src/nodes/traits.rs:103:27
    |
103 | impl<'a, T: Inflate<'a> + ?Sized> Inflate<'a> for Box<T> {
    |                           ^^^^^^
    |
note: `T` cannot be unsized because of the bound
   --> libcst/src/nodes/traits.rs:103:13
    |
103 | impl<'a, T: Inflate<'a> + ?Sized> Inflate<'a> for Box<T> {
    |             ^^^^^^^^^^^
    = note: ...because `Inflate` has the bound `Sized`
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_maybe_sized
    = note: `#[warn(clippy::needless_maybe_sized)]` on by default
help: change the bounds that require `Sized`, or remove the `?Sized` bound
    |
103 - impl<'a, T: Inflate<'a> + ?Sized> Inflate<'a> for Box<T> {
103 + impl<'a, T: Inflate<'a>> Inflate<'a> for Box<T> {
    |

warning: the following explicit lifetimes could be elided: 'a
  --> libcst/src/nodes/codegen.rs:56:6
   |
56 | impl<'a> Default for CodegenState<'a> {
   |      ^^                           ^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
   |
56 - impl<'a> Default for CodegenState<'a> {
56 + impl Default for CodegenState<'_> {
   |

warning: the following explicit lifetimes could be elided: 'a
  --> libcst/src/nodes/codegen.rs:30:6
   |
30 | impl<'a> fmt::Display for CodegenState<'a> {
   |      ^^                                ^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
   |
30 - impl<'a> fmt::Display for CodegenState<'a> {
30 + impl fmt::Display for CodegenState<'_> {
   |

warning: deref which would be done by auto-deref
  --> libcst/src/nodes/module.rs:63:18
   |
63 |             &mut (*self.eof_tok).whitespace_before.borrow_mut(),
   |                  ^^^^^^^^^^^^^^^ help: try: `self.eof_tok`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref

warning: the following explicit lifetimes could be elided: 'r
  --> libcst/src/nodes/module.rs:54:6
   |
54 | impl<'r, 'a> Inflate<'a> for DeflatedModule<'r, 'a> {
   |      ^^                                     ^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
   |
54 - impl<'r, 'a> Inflate<'a> for DeflatedModule<'r, 'a> {
54 + impl<'a> Inflate<'a> for DeflatedModule<'_, 'a> {
   |

warning: deref which would be done by auto-deref
    --> libcst/src/nodes/op.rs:1415:18
     |
1415 |             &mut (*self.tok).whitespace_after.borrow_mut(),
     |                  ^^^^^^^^^^^ help: try: `self.tok`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref

warning: deref which would be done by auto-deref
    --> libcst/src/nodes/op.rs:1411:18
     |
1411 |             &mut (*self.tok).whitespace_before.borrow_mut(),
     |                  ^^^^^^^^^^^ help: try: `self.tok`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref

warning: the following explicit lifetimes could be elided: 'r
    --> libcst/src/nodes/op.rs:1406:6
     |
1406 | impl<'r, 'a> Inflate<'a> for DeflatedBitOr<'r, 'a> {
     |      ^^                                    ^^
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
     |
1406 - impl<'r, 'a> Inflate<'a> for DeflatedBitOr<'r, 'a> {
1406 + impl<'a> Inflate<'a> for DeflatedBitOr<'_, 'a> {
     |

warning: deref which would be done by auto-deref
    --> libcst/src/nodes/op.rs:1312:26
     |
1312 |                     &mut (*tok).whitespace_after.borrow_mut(),
     |                          ^^^^^^ help: try: `tok`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref

warning: deref which would be done by auto-deref
    --> libcst/src/nodes/op.rs:1308:26
     |
1308 |                     &mut (*tok).whitespace_before.borrow_mut(),
     |                          ^^^^^^ help: try: `tok`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref

warning: deref which would be done by auto-deref
    --> libcst/src/nodes/op.rs:1298:26
     |
1298 |                     &mut (*tok).whitespace_after.borrow_mut(),
     |                          ^^^^^^ help: try: `tok`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref

warning: deref which would be done by auto-deref
    --> libcst/src/nodes/op.rs:1294:26
     |
1294 |                     &mut (*tok).whitespace_before.borrow_mut(),
     |                          ^^^^^^ help: try: `tok`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref

warning: deref which would be done by auto-deref
    --> libcst/src/nodes/op.rs:1284:26
     |
1284 |                     &mut (*tok).whitespace_after.borrow_mut(),
     |                          ^^^^^^ help: try: `tok`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref

warning: deref which would be done by auto-deref
    --> libcst/src/nodes/op.rs:1280:26
     |
1280 |                     &mut (*tok).whitespace_before.borrow_mut(),
     |                          ^^^^^^ help: try: `tok`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref

warning: deref which would be done by auto-deref
    --> libcst/src/nodes/op.rs:1270:26
     |
1270 |                     &mut (*tok).whitespace_after.borrow_mut(),
     |                          ^^^^^^ help: try: `tok`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref

warning: deref which would be done by auto-deref
    --> libcst/src/nodes/op.rs:1266:26
     |
1266 |                     &mut (*tok).whitespace_before.borrow_mut(),
     |                          ^^^^^^ help: try: `tok`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref