error[E0308]: `if` and `else` have incompatible types
  --> $DIR/str-array-assignment.rs:3:37
   |
LL |   let t = if true { s[..2] } else { s };
   |                     ------          ^ expected `str`, found `&str`
   |                     |
   |                     expected because of this

error[E0308]: mismatched types
  --> $DIR/str-array-assignment.rs:5:27
   |
LL |   let u: &str = if true { s[..2] } else { s };
   |                           ^^^^^^
   |                           |
   |                           expected `&str`, found `str`
   |                           help: consider borrowing here: `&s[..2]`

error[E0277]: the size for values of type `str` cannot be known at compilation time
  --> $DIR/str-array-assignment.rs:7:7
   |
LL |   let v = s[..2];
   |       ^ doesn't have a size known at compile-time
   |
   = help: the trait `Sized` is not implemented for `str`
   = note: all local variables must have a statically known size
   = help: unsized locals are gated as an unstable feature
help: consider borrowing here
   |
LL |   let v = &s[..2];
   |           +

error[E0308]: mismatched types
  --> $DIR/str-array-assignment.rs:9:17
   |
LL |   let w: &str = s[..2];
   |          ----   ^^^^^^
   |          |      |
   |          |      expected `&str`, found `str`
   |          |      help: consider borrowing here: `&s[..2]`
   |          expected due to this

error: aborting due to 4 previous errors

Some errors have detailed explanations: E0277, E0308.
For more information about an error, try `rustc --explain E0277`.