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:22:29
   |
22 |             let first_arg = env::args().nth(1).unwrap_or_else(|| "".to_string());
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `env::args().nth(1).unwrap_or_default()`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unwrap_or_else_default
   = note: `#[warn(clippy::unwrap_or_else_default)]` on by default

warning: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
    --> libcst/src/parser/grammar.rs:1864:25
     |
1864 |     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/5680fa18feaa87f3ff04063800aec256c3d4b4be/library/core/src/iter/traits/iterator.rs:522:12
     = 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: 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: 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 this: `self.eof_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:1415:18
     |
1415 |             &mut (*self.tok).whitespace_after.borrow_mut(),
     |                  ^^^^^^^^^^^ help: try this: `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 this: `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:1312:26
     |
1312 |                     &mut (*tok).whitespace_after.borrow_mut(),
     |                          ^^^^^^ help: try this: `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 this: `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 this: `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 this: `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 this: `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 this: `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 this: `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 this: `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:1256:26
     |
1256 |                     &mut (*tok).whitespace_after.borrow_mut(),
     |                          ^^^^^^ help: try this: `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:1252:26
     |
1252 |                     &mut (*tok).whitespace_before.borrow_mut(),
     |                          ^^^^^^ help: try this: `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:1242:26
     |
1242 |                     &mut (*tok).whitespace_after.borrow_mut(),
     |                          ^^^^^^ help: try this: `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:1238:26
     |
1238 |                     &mut (*tok).whitespace_before.borrow_mut(),
     |                          ^^^^^^ help: try this: `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:1228:26
     |
1228 |                     &mut (*tok).whitespace_after.borrow_mut(),
     |                          ^^^^^^ help: try this: `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:1224:26
     |
1224 |                     &mut (*tok).whitespace_before.borrow_mut(),
     |                          ^^^^^^ help: try this: `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:1214:26
     |
1214 |                     &mut (*tok).whitespace_after.borrow_mut(),
     |                          ^^^^^^ help: try this: `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:1210:26
     |
1210 |                     &mut (*tok).whitespace_before.borrow_mut(),
     |                          ^^^^^^ help: try this: `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:1200:26
     |
1200 |                     &mut (*tok).whitespace_after.borrow_mut(),
     |                          ^^^^^^ help: try this: `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:1196:26
     |
1196 |                     &mut (*tok).whitespace_before.borrow_mut(),
     |                          ^^^^^^ help: try this: `tok`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref