error[E0425]: cannot find value `_y` in this scope
  --> $DIR/issue-105946.rs:6:10
   |
LL |     let [_y..] = [box 1, box 2];
   |          ^^ not found in this scope

error[E0658]: `X..` patterns in slices are experimental
  --> $DIR/issue-105946.rs:6:10
   |
LL |     let [_y..] = [box 1, box 2];
   |          ^^^^
   |
   = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information
   = help: add `#![feature(half_open_range_patterns_in_slices)]` to the crate attributes to enable

error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
  --> $DIR/issue-105946.rs:6:19
   |
LL |     let [_y..] = [box 1, box 2];
   |                   ^^^^^
   |
   = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
   = help: add `#![feature(box_syntax)]` to the crate attributes to enable

error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
  --> $DIR/issue-105946.rs:6:26
   |
LL |     let [_y..] = [box 1, box 2];
   |                          ^^^^^
   |
   = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
   = help: add `#![feature(box_syntax)]` to the crate attributes to enable

error[E0308]: mismatched types
  --> $DIR/issue-105946.rs:2:10
   |
LL |   return {};
   |          ^^ expected `str`, found `()`

error[E0527]: pattern requires 1 element but array has 2
  --> $DIR/issue-105946.rs:6:9
   |
LL |     let [_y..] = [box 1, box 2];
   |         ^^^^^^ expected 2 elements

error: aborting due to 6 previous errors

Some errors have detailed explanations: E0308, E0425, E0527, E0658.
For more information about an error, try `rustc --explain E0308`.