error: unnested or-patterns
  --> $DIR/unnested_or_patterns2.rs:12:12
   |
LL |     if let Some(Some(0)) | Some(Some(1)) = None {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `-D clippy::unnested-or-patterns` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::unnested_or_patterns)]`
help: nest the patterns
   |
LL |     if let Some(Some(0 | 1)) = None {}
   |            ~~~~~~~~~~~~~~~~~

error: unnested or-patterns
  --> $DIR/unnested_or_patterns2.rs:13:12
   |
LL |     if let Some(Some(0)) | Some(Some(1) | Some(2)) = None {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: nest the patterns
   |
LL |     if let Some(Some(0 | 1 | 2)) = None {}
   |            ~~~~~~~~~~~~~~~~~~~~~

error: unnested or-patterns
  --> $DIR/unnested_or_patterns2.rs:14:12
   |
LL |     if let Some(Some(0 | 1) | Some(2)) | Some(Some(3) | Some(4)) = None {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: nest the patterns
   |
LL |     if let Some(Some(0 | 1 | 2 | 3 | 4)) = None {}
   |            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

error: unnested or-patterns
  --> $DIR/unnested_or_patterns2.rs:15:12
   |
LL |     if let Some(Some(0) | Some(1 | 2)) = None {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: nest the patterns
   |
LL |     if let Some(Some(0 | 1 | 2)) = None {}
   |            ~~~~~~~~~~~~~~~~~~~~~

error: unnested or-patterns
  --> $DIR/unnested_or_patterns2.rs:16:12
   |
LL |     if let ((0,),) | ((1,) | (2,),) = ((0,),) {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: nest the patterns
   |
LL |     if let ((0 | 1 | 2,),) = ((0,),) {}
   |            ~~~~~~~~~~~~~~~

error: unnested or-patterns
  --> $DIR/unnested_or_patterns2.rs:17:12
   |
LL |     if let 0 | (1 | 2) = 0 {}
   |            ^^^^^^^^^^^
   |
help: nest the patterns
   |
LL |     if let 0 | 1 | 2 = 0 {}
   |            ~~~~~~~~~

error: unnested or-patterns
  --> $DIR/unnested_or_patterns2.rs:18:12
   |
LL |     if let box (0 | 1) | (box 2 | box (3 | 4)) = Box::new(0) {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: nest the patterns
   |
LL |     if let box (0 | 1 | 2 | 3 | 4) = Box::new(0) {}
   |            ~~~~~~~~~~~~~~~~~~~~~~~

error: unnested or-patterns
  --> $DIR/unnested_or_patterns2.rs:19:12
   |
LL |     if let box box 0 | box (box 2 | box 4) = Box::new(Box::new(0)) {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: nest the patterns
   |
LL |     if let box box (0 | 2 | 4) = Box::new(Box::new(0)) {}
   |            ~~~~~~~~~~~~~~~~~~~

error: aborting due to 8 previous errors